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Outskouni Z, Christodoulou C, Goutas A, Kyriazis ID, Paraskevopoulou A, Laliotis GP, Matsakidou A, Gogas A, Trachana V. Cryptomphalus aspersa Egg Extract Protects against Human Stem Cell Stress-Induced Premature Senescence. Int J Mol Sci 2024; 25:3715. [PMID: 38612526 PMCID: PMC11011511 DOI: 10.3390/ijms25073715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 03/23/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024] Open
Abstract
Cellular senescence is a tightly regulated pathophysiologic process and is caused by replicative exhaustion or external stressors. Since naturally derived bioactive compounds with anti-ageing properties have recently captured scientific interest, we analysed the anti-ageing and antioxidant efficacy of Cryptomphalus aspersa egg extract (CAEE). Its effects on stemness, wound-healing properties, antioxidant defense mechanisms, and DNA damage repair ability of Human Wharton's jelly mesenchymal stem cells (WJ-MSCs) were analysed. Our results revealed that CAEE fortifies WJ-MSCs stemness, which possibly ameliorates their wound-healing ability. Additionally, we show that CAEE possesses a strong antioxidant capacity as demonstrated by the elevation of the levels of the basic antioxidant molecule, GSH, and the induction of the NRF2, a major antioxidant regulator. In addition, CAEE alleviated cells' oxidative stress and therefore prevented stress-induced premature senescence (SIPS). Furthermore, we demonstrated that the prevention of SIPS could be mediated via the extract's ability to induce autophagy, as indicated by the elevation of the protein levels of all basic autophagic molecules and the increase in formation of autophagolysosomes in CAEE-treated WJ-MSCs. Moreover, CAEE-treated cells exhibited decreased Caveolin-1 levels. We propose that Cryptomphalus aspersa egg extract comprises bioactive compounds that can demonstrate strong antioxidant/anti-ageing effects by regulating the Caveolin-1-autophagy-senescence molecular axis.
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Affiliation(s)
- Zozo Outskouni
- Department of Biology, Faculty of Medicine, University of Thessaly, 41500 Larisa, Greece; (Z.O.); (C.C.); (A.G.); (I.D.K.)
| | - Christina Christodoulou
- Department of Biology, Faculty of Medicine, University of Thessaly, 41500 Larisa, Greece; (Z.O.); (C.C.); (A.G.); (I.D.K.)
| | - Andreas Goutas
- Department of Biology, Faculty of Medicine, University of Thessaly, 41500 Larisa, Greece; (Z.O.); (C.C.); (A.G.); (I.D.K.)
- Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece
| | - Ioannis D. Kyriazis
- Department of Biology, Faculty of Medicine, University of Thessaly, 41500 Larisa, Greece; (Z.O.); (C.C.); (A.G.); (I.D.K.)
| | - Adamantini Paraskevopoulou
- Laboratory of Food Chemistry & Technology, School of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.P.); (A.M.)
| | - George P. Laliotis
- Laboratory of Animal Breeding and Husbandry, Department of Animal Science, Agricultural University of Athens, 75 Iera Odos, 11855 Athens, Greece;
| | - Anthia Matsakidou
- Laboratory of Food Chemistry & Technology, School of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.P.); (A.M.)
| | | | - Varvara Trachana
- Department of Biology, Faculty of Medicine, University of Thessaly, 41500 Larisa, Greece; (Z.O.); (C.C.); (A.G.); (I.D.K.)
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Kartsonakis IA, Vardakas P, Goulis P, Perkas N, Kyriazis ID, Skaperda Z, Tekos F, Charitidis CA, Kouretas D. Toxicity assessment of core-shell and superabsorbent polymers in cell-based systems. Environ Res 2023; 228:115772. [PMID: 36967000 DOI: 10.1016/j.envres.2023.115772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 03/10/2023] [Accepted: 03/23/2023] [Indexed: 05/16/2023]
Abstract
The identification of health risks arising from occupational exposure to submicron/nanoscale materials is of particular interest and toxicological investigations designed to assess their hazardous properties can provide valuable insights. The core-shell polymers poly (methyl methacrylate)@poly (methacrylic acid-co-ethylene glycol dimethacrylate) [PMMA@P (MAA-co-EGDMA)] and poly (n-butyl methacrylate-co-ethylene glycol dimethacrylate)@poly (methyl methacrylate) [P (nBMA-co-EGDMA)@PMMA] could be utilized for the debonding of coatings and for the encapsulation and targeted delivery of various compounds. The hybrid superabsorbent core-shell polymers poly (methacrylic acid-co-ethylene glycol dimethacrylate)@silicon dioxide [P (MAA-co-EGDMA)@SiO2] could be utilized as internal curing agents in cementitious materials. Therefore, the characterization of their toxicological profile is essential to ensure their safety throughout manufacturing and the life cycle of the final products. Based on the above, the purpose of the present study was to assess the acute toxic effects of the above mentioned polymers on cell viability and on cellular redox state in EA. hy926 human endothelial cells and in RAW264.7 mouse macrophages. According to our results, the examined polymers did not cause any acute toxic effects on cell viability after any administration. However, the thorough evaluation of a panel of redox biomarkers revealed that they affected cellular redox state in a cell-specific manner. As regards EA. hy926 cells, the polymers disrupted redox homeostasis and promoted protein carbonylation. Concerning RAW264.7 cells, P (nBMA-co-EGDMA)@PMMA caused disturbances in redox equilibrium and special emphasis was placed on the triphasic dose-response effect detected in lipid peroxidation. Finally, P (MAA-co-EGDMA)@SiO2 activated cellular adaptive mechanisms in order to prevent from oxidative damage.
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Affiliation(s)
- Ioannis A Kartsonakis
- Research Lab of Advanced, Composite, Nano-Materials and Nanotechnology, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou St. Zografos, 15780, Athens, Greece
| | - Periklis Vardakas
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500, Larissa, Greece
| | - Panagiotis Goulis
- Research Lab of Advanced, Composite, Nano-Materials and Nanotechnology, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou St. Zografos, 15780, Athens, Greece
| | - Nikolaos Perkas
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500, Larissa, Greece
| | - Ioannis D Kyriazis
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500, Larissa, Greece
| | - Zoi Skaperda
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500, Larissa, Greece
| | - Fotios Tekos
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500, Larissa, Greece
| | - Constantinos A Charitidis
- Research Lab of Advanced, Composite, Nano-Materials and Nanotechnology, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou St. Zografos, 15780, Athens, Greece.
| | - Demetrios Kouretas
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500, Larissa, Greece.
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Vardakas P, Kartsonakis IA, Kyriazis ID, Kainourgios P, Trompeta AFA, Charitidis CA, Kouretas D. Pristine, carboxylated, and hybrid multi-walled carbon nanotubes exert potent antioxidant activities in in vitro-cell free systems. Environ Res 2023; 220:115156. [PMID: 36574796 DOI: 10.1016/j.envres.2022.115156] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 12/09/2022] [Accepted: 12/22/2022] [Indexed: 06/17/2023]
Abstract
Multi-walled carbon nanotubes (MWCNTs) are tubular-shaped carbon allotropes, composed of multiple concentric graphene cylinders. The extended systems of conjugated double bonds, that MWCNTs are constituted by, provide them with high electron affinities, enabling them to act as electron donors or acceptors. Consequently, their potential biomedical applications, as synthetic antioxidant agents, are of particular interest. Based on the above, the purpose of the present study was to evaluate the intrinsic antioxidant properties of pristine and carboxylated MWCNTs, as well as of novel hybrid nanocomposites of MWCNTs and inorganic nanoparticles. To this end, after the synthesis and characterization of MWCNTs, their antiradical, reducing, and antigenotoxic properties were assessed in cell-free assays, using a methodological approach that has been recently proposed by our research group. According to our results, most of the tested MWCNTs exhibited strong antioxidant activities. More elaborately, the hybrid material of MWCNTs and ferrous oxide nanoparticles, i.e., CNTs@Fe3O4, showed robust scavenging capacities in all free-radical scavenging assays examined. As regards reducing properties, the pristine MWCNTs, i.e., CNTs-Ref, exhibited the greater electron donating capacity. Finally, in terms of antigenotoxic properties, the hybrid material of MWCNTs and silicon carbide nanoparticles, i.e., CNTs@SiC, exhibited potent ability to inhibit the formation of peroxyl radicals, thus preventing from the oxidative DNA damage. Conclusively, our findings suggest that the MWCNTs of the study could be considered as promising broad-spectrum antioxidants, however, further investigations are required to evaluate their toxicological profile in cell-based and in vivo systems.
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Affiliation(s)
- Periklis Vardakas
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500, Larissa, Greece
| | - Ioannis A Kartsonakis
- Research Lab of Advanced, Composite, Nano-Materials and Nanotechnology, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou St. Zografos, 15780, Athens, Greece
| | - Ioannis D Kyriazis
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500, Larissa, Greece
| | - Panagiotis Kainourgios
- Research Lab of Advanced, Composite, Nano-Materials and Nanotechnology, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou St. Zografos, 15780, Athens, Greece
| | - Aikaterini Flora A Trompeta
- Research Lab of Advanced, Composite, Nano-Materials and Nanotechnology, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou St. Zografos, 15780, Athens, Greece
| | - Constantinos A Charitidis
- Research Lab of Advanced, Composite, Nano-Materials and Nanotechnology, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou St. Zografos, 15780, Athens, Greece
| | - Demetrios Kouretas
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500, Larissa, Greece.
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Skaperda Z, Kyriazis ID, Tekos F, Alvanou MV, Nechalioti PM, Makri S, Argyriadou A, Vouraki S, Kallitsis T, Kourti M, Irene V, Arsenos G, Kouretas D. Determination of Redox Status in Different Tissues of Lambs and Kids and Their in-between Relationship. Antioxidants (Basel) 2022; 11:antiox11102065. [PMID: 36290788 PMCID: PMC9598356 DOI: 10.3390/antiox11102065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/13/2022] [Accepted: 10/17/2022] [Indexed: 11/16/2022] Open
Abstract
The objective of this study was to assess the resting values of the physiological oxidative stress exhibited by lambs and kids reared in Greece, and the potential correlations between redox biomarker levels in blood and other tissues (liver, diaphragm, quadriceps, psoas major muscle). For this purpose, lambs and kids at different developmental stages (d.s.) were used. The latter corresponded to four live weight categories (LWC), each representing 25%, 35%, 70% and 100% of mature body weight. In each of the above tissues, the levels of five common redox biomarkers were determined: glutathione (GSH), catalase (CAT), total antioxidant capacity (TAC), thiobarbituric reactive substances (TBARS), and protein carbonyls (CARBS). The results revealed that lambs and kids belonging to the 35% LWC had weaker endogenous antioxidant pools, while animals in the 70% and 100% LWC had elevated intrinsic antioxidant defense systems. Blood redox biomarkers were associated with the respective ones measured in the diaphragm, liver, quadriceps, and psoas major of both species. Importantly, TBARS levels in blood of animals in the 25% and 100% LWC are correlated with the TBARS levels in all other tissues tested. Blood antioxidant parameters might be used as potential biomarkers to predict the antioxidant status of tissues that affect meat quality. The latter would facilitate quality assessment prior to slaughter, allowing for timely nutritional interventions that can improve meat products.
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Affiliation(s)
- Zoi Skaperda
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500 Larissa, Greece
| | - Ioannis D. Kyriazis
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500 Larissa, Greece
| | - Fotios Tekos
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500 Larissa, Greece
| | - Maria V. Alvanou
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500 Larissa, Greece
| | - Paraskevi-Maria Nechalioti
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500 Larissa, Greece
| | - Sotiria Makri
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500 Larissa, Greece
| | - Angeliki Argyriadou
- Laboratory of Animal Husbandry, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Sotiria Vouraki
- Laboratory of Animal Husbandry, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Theodoros Kallitsis
- Laboratory of Animal Husbandry, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Maria Kourti
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500 Larissa, Greece
| | - Valasi Irene
- Faculty of Veterinary Science, University of Thessaly, 43131 Karditsa, Greece
| | - Georgios Arsenos
- Laboratory of Animal Husbandry, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Demetrios Kouretas
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500 Larissa, Greece
- Correspondence: ; Tel.: +30-2410-565277
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Mia S, Kyriazis ID, Sidiropoulou R, Hill D, Mantalaris A, Drosatos K. Abstract GS111: Inhibition Of Cardiac Glucose Transporter 1 Suppresses Early Glucose Dependency And Klf5 Activation And Treats Cardiomyopathy In Diabetes. Circ Res 2022. [DOI: 10.1161/res.131.suppl_1.gs111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Healthy hearts use more fatty acids (FA) than glucose for ATP synthesis but diabetic cardiomyopathy (DbCM) occurs with higher FA dependency. It remains controversial whether glucotoxicity or lipotoxicity or both account for DbCM. We recently discovered that insulin signaling inhibition and eventual FOXO1 activation stimulate cardiac KLF5 expression, which drives lipotoxicity and causes cardiac dysfunction. In the present study, we investigated the relative contribution of glucose in the activation of cardiac KLF5 and DbCM. We induced Type-1 diabetes (T1D) in C57BL/6 mice via intraperitoneal injections of streptozotocin (STZ). In contrast to late-stage diabetes (12 weeks post-STZ), cardiac KLF5 mRNA and protein levels were not increased in the early T1D stage (4 weeks post-STZ) although mice have mild cardiac dysfunction already. Seahorse analysis in adult cardiomyocytes isolated from mice with early T1D showed higher glucose and lower FA dependency compared to non-diabetic mice and mice in late T1D. To confirm whether hyperglycemia causes cardiac dysfunction, we treated diabetic mice with Dapagliflozin (DAPA, SGLT2 inhibitor) or STF-31, a GLUT1 inhibitor. These treatments restored normal dependency on fatty acids and prevented cardiac dysfunction. GC-MS analysis showed that the reversal of fuel dependency from glucose to fatty acids in late T1D is accompanied by increased glucose content opposite to the early T1D. Accordingly cardiac KLF5 is increased in late T1D, accompanied by severe cardiac dysfunction. The expression changes of KLF5 are mirrored by transcriptional activity of FOXO1 -shown by expression of FOXO1 targets- in early and late T1D. The changes in transcriptional activity are accompanied by differential FOXO1 acetylation, which is controlled by Sirtuin-1 and modulates its DNA affinity. Analysis of mouse cardiac tissue in early T1D and a human cardiomyocyte cell line (AC16) that was treated with high glucose showed higher Sirtuin-1 expression and stronger protein-protein interaction with FOXO1. To this end, mice that were subjected to treatment with either DAPA or STF31 for 12 Wks had improved cardiac function, lower cardiac KLF5 expression and decreased expression of cardiac KLF5 gene targets. Interestingly, GLUT1 mRNA levels were increased in late T1D compared to early T1D. Cardiomyocyte-specific KLF5 overexpression or adenovirus-mediated KLF5 overexpression in AC16 cells stimulated GLUT1 expression. Collectively, in early T1D, hearts rely more on glucose utilization in mitochondria. In late T1D, SIRT1-FOXO1-KLF5 axis causes lipotoxicity and subsequent induction of GLUT1 expression that contributes to glucotoxicity. Inhibition of GLUT1-dependent glucose uptake alleviates diabetic cardiomyopathy via inhibition of both early glucose dependency and late KLF5 activation.
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Affiliation(s)
| | | | | | - Daniel Hill
- Wallace H. Coulter Dept of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA
| | - Athanasios Mantalaris
- Wallace H. Coulter Dept of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA
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Mia S, Kyriazis ID, Sidiropoulou R, Hill D, Mantalaris A, Drosatos K. Inhibition of Cardiac Glucose Transport Corrects Diabetic Cardiomyopathy Even Without Alleviation of Hyperglycemia. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.r4341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Smyrli M, Anka IZ, Koutsoni O, Dotsika E, Kyriazis ID, Pavlidis M, Katharios P. Development of autogenous vaccines for farmed European seabass against Aeromonas veronii using zebrafish as a model for efficacy assessment. Fish Shellfish Immunol 2022; 123:381-387. [PMID: 35318138 DOI: 10.1016/j.fsi.2022.03.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 02/25/2022] [Accepted: 03/17/2022] [Indexed: 06/14/2023]
Abstract
Aeromonas veronii bv. sobria is an emerging pathogen for the European seabass cultured in the Aegean Sea (Mediterranean) causing significant problems in the Greek and Turkish aquaculture industry since no licensed vaccine is currently available for the disease. A bivalent vaccine was developed based on two phenotypically distinct strains of the pathogen, PDB (motile, pigment-producing strain) and NS (non-motile, non-pigment-producing). The two strains comprising the bivalent vaccine were evaluated as monovalent products in zebrafish before the seabass trials. Challenges using the homologous or the heterologous strain showed that both vaccines were protective with RPS values ranging between 66 and 100% in zebrafish. The bivalent vaccine was then tested in European seabass following dip or intraperitoneal administration. Efficacy was evaluated separately against both strains comprising the bivalent vaccine. Dip vaccination applied to juvenile seabass of 2.5 g average weight provided protection following challenge tests 30 days post vaccination only in one of the two strains tested (strain PDB, RPS: 88%). This was also the case in the injection vaccination of adult seabass of 60 g average weight where the vaccine was effective only against the PDB strain (RPS: 63%). High antibody titers against both strains were found at 30 and 60 days after intraperitoneal vaccination in the adult seabass. The use of zebrafish as a model for vaccine development for aquaculture species is discussed.
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Affiliation(s)
- Maria Smyrli
- University of Crete, Department of Biology, Voutes University Campus, Heraklion, 70013, Greece; Hellenic Centre for Marine Research, Institute of Marine Biology, Biotechnology and Aquaculture, Former American Base of Gournes, Heraklion, 71500, Greece
| | - Ishrat Zahan Anka
- University of Crete, Department of Biology, Voutes University Campus, Heraklion, 70013, Greece; Chattogram Veterinary and Animal Sciences University, Chittagong, Bangladesh
| | - Olga Koutsoni
- Hellenic Pasteur Institute, Department of Microbiology, Laboratory of Cellular Immunology, Greece
| | - Eleni Dotsika
- Hellenic Pasteur Institute, Department of Microbiology, Laboratory of Cellular Immunology, Greece
| | - Ioannis D Kyriazis
- Hellenic Pasteur Institute, Department of Microbiology, Laboratory of Cellular Immunology, Greece; University of Thessaly, Department of Biochemistry and Biotechnology, Greece
| | - Michail Pavlidis
- University of Crete, Department of Biology, Voutes University Campus, Heraklion, 70013, Greece
| | - Pantelis Katharios
- Hellenic Centre for Marine Research, Institute of Marine Biology, Biotechnology and Aquaculture, Former American Base of Gournes, Heraklion, 71500, Greece.
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Tekos F, Makri S, Skaperda ZV, Patouna A, Terizi K, Kyriazis ID, Kotseridis Y, Mikropoulou EV, Papaefstathiou G, Halabalaki M, Demetrios K. Assessment of Antioxidant and Antimutagenic Properties of Red and White Wine Extracts In Vitro. Metabolites 2021; 11:metabo11070436. [PMID: 34357330 PMCID: PMC8304343 DOI: 10.3390/metabo11070436] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 06/24/2021] [Accepted: 06/26/2021] [Indexed: 01/11/2023] Open
Abstract
Wine is an alcoholic beverage of complex composition obtained through the fermentation of grape must. The consumption of wine has already been associated with a multitude of beneficial effects due to its high polyphenolic content. In this study, four Greek emblematic wines from two red (i.e., Xinomavro and Agiorgitiko) and two white (i.e., Assyrtiko and Malagouzia) varieties were analyzed for the estimation of their antioxidant profiles. To address this question, we assessed their ability to scavenge both synthetic and endogenous free radicals, such as DPPH•, ABTS+•, OH•, O2−, their potential reducing power, and their antimutagenic and antigenotoxic properties. All varieties exhibited potent antioxidant activity, as indicated by the results of methods above, with the red wines appearing more effective than the white ones regarding antioxidant capacity. Our small-scale study is the first to reveal that these wine varieties may have the ability to scavenge the most reactive endogenous radicals. In the future, this finding must be accompanied by larger studies to fill a knowledge gap in the scientific literature concerning a holistic approach of the in vitro antioxidant action of plant polyphenolic compounds. Conclusively, we believe that wines possess high bioactivity that allow them to settle in the industry of food additives and medicinal products.
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Affiliation(s)
- Fotios Tekos
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500 Larissa, Greece; (F.T.); (S.M.); (Z.-V.S.); (A.P.); (K.T.); (I.D.K.)
| | - Sotiria Makri
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500 Larissa, Greece; (F.T.); (S.M.); (Z.-V.S.); (A.P.); (K.T.); (I.D.K.)
| | - Zoi-Vasiliki Skaperda
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500 Larissa, Greece; (F.T.); (S.M.); (Z.-V.S.); (A.P.); (K.T.); (I.D.K.)
| | - Anastasia Patouna
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500 Larissa, Greece; (F.T.); (S.M.); (Z.-V.S.); (A.P.); (K.T.); (I.D.K.)
| | - Kallirroi Terizi
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500 Larissa, Greece; (F.T.); (S.M.); (Z.-V.S.); (A.P.); (K.T.); (I.D.K.)
| | - Ioannis D. Kyriazis
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500 Larissa, Greece; (F.T.); (S.M.); (Z.-V.S.); (A.P.); (K.T.); (I.D.K.)
| | - Yorgos Kotseridis
- Laboratory of Oenology, Department of Food Science & Human Nutrition, Agricultural University of Athens, 75 Iera Odos, 11855 Athens, Greece;
| | - Eleni Vaskani Mikropoulou
- Department of Pharmacy, Division of Pharmacognosy and Natural Products Chemistry, National and Kapodistrian University of Athens, Panepistimioupoli Zografou, 15771 Athens, Greece; (E.V.M.); (G.P.); (M.H.)
| | - Georgios Papaefstathiou
- Department of Pharmacy, Division of Pharmacognosy and Natural Products Chemistry, National and Kapodistrian University of Athens, Panepistimioupoli Zografou, 15771 Athens, Greece; (E.V.M.); (G.P.); (M.H.)
| | - Maria Halabalaki
- Department of Pharmacy, Division of Pharmacognosy and Natural Products Chemistry, National and Kapodistrian University of Athens, Panepistimioupoli Zografou, 15771 Athens, Greece; (E.V.M.); (G.P.); (M.H.)
| | - Kouretas Demetrios
- Department of Biochemistry and Biotechnology, University of Thessaly, Viopolis, Mezourlo, 41500 Larissa, Greece; (F.T.); (S.M.); (Z.-V.S.); (A.P.); (K.T.); (I.D.K.)
- Correspondence: ; Tel.: +30-241-0565-277; Fax: +30-241-0565-293
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Kyriazis ID, Hoffman M, Gaignebet L, Lucchese AM, Markopoulou E, Palioura D, Wang C, Bannister TD, Christofidou-Solomidou M, Oka SI, Sadoshima J, Koch WJ, Goldberg IJ, Yang VW, Bialkowska AB, Kararigas G, Drosatos K. KLF5 Is Induced by FOXO1 and Causes Oxidative Stress and Diabetic Cardiomyopathy. Circ Res 2021; 128:335-357. [PMID: 33539225 PMCID: PMC7870005 DOI: 10.1161/circresaha.120.316738] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
RATIONALE Diabetic cardiomyopathy (DbCM) is a major complication in type-1 diabetes, accompanied by altered cardiac energetics, impaired mitochondrial function, and oxidative stress. Previous studies indicate that type-1 diabetes is associated with increased cardiac expression of KLF5 (Krüppel-like factor-5) and PPARα (peroxisome proliferator-activated receptor) that regulate cardiac lipid metabolism. OBJECTIVE In this study, we investigated the involvement of KLF5 in DbCM and its transcriptional regulation. METHODS AND RESULTS KLF5 mRNA levels were assessed in isolated cardiomyocytes from cardiovascular patients with diabetes and were higher compared with nondiabetic individuals. Analyses in human cells and diabetic mice with cardiomyocyte-specific FOXO1 (Forkhead box protein O1) deletion showed that FOXO1 bound directly on the KLF5 promoter and increased KLF5 expression. Diabetic mice with cardiomyocyte-specific FOXO1 deletion had lower cardiac KLF5 expression and were protected from DbCM. Genetic, pharmacological gain and loss of KLF5 function approaches and AAV (adeno-associated virus)-mediated Klf5 delivery in mice showed that KLF5 induces DbCM. Accordingly, the protective effect of cardiomyocyte FOXO1 ablation in DbCM was abolished when KLF5 expression was rescued. Similarly, constitutive cardiomyocyte-specific KLF5 overexpression caused cardiac dysfunction. KLF5 caused oxidative stress via direct binding on NADPH oxidase (NOX)4 promoter and induction of NOX4 (NADPH oxidase 4) expression. This was accompanied by accumulation of cardiac ceramides. Pharmacological or genetic KLF5 inhibition alleviated superoxide formation, prevented ceramide accumulation, and improved cardiac function in diabetic mice. CONCLUSIONS Diabetes-mediated activation of cardiomyocyte FOXO1 increases KLF5 expression, which stimulates NOX4 expression, ceramide accumulation, and causes DbCM.
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Affiliation(s)
- Ioannis D. Kyriazis
- Lewis Katz School of Medicine at Temple University, Center for Translational Medicine, Philadelphia, PA, 19131, USA
| | - Matthew Hoffman
- Lewis Katz School of Medicine at Temple University, Center for Translational Medicine, Philadelphia, PA, 19131, USA
| | - Lea Gaignebet
- Charité – Universitätsmedizin Berlin, Berlin 10115, Germany
| | - Anna Maria Lucchese
- Lewis Katz School of Medicine at Temple University, Center for Translational Medicine, Philadelphia, PA, 19131, USA
| | - Eftychia Markopoulou
- Lewis Katz School of Medicine at Temple University, Center for Translational Medicine, Philadelphia, PA, 19131, USA
| | - Dimitra Palioura
- Lewis Katz School of Medicine at Temple University, Center for Translational Medicine, Philadelphia, PA, 19131, USA
| | - Chao Wang
- The Scripps Research Institute, Jupiter, FL, 33458m USA
| | | | - Melpo Christofidou-Solomidou
- Pulmonary, Allergy, and Critical Care Division, University of Pennsylvania School of Medicine, Philadelphia, PA, 19104, USA
| | - Shin-ichi Oka
- Department of Cell Biology and Molecular Medicine, Rutgers New Jersey Medical School, Newark, NJ, 07101, USA
| | - Junichi Sadoshima
- Department of Cell Biology and Molecular Medicine, Rutgers New Jersey Medical School, Newark, NJ, 07101, USA
| | - Walter J. Koch
- Lewis Katz School of Medicine at Temple University, Center for Translational Medicine, Philadelphia, PA, 19131, USA
| | - Ira J. Goldberg
- Division of Endocrinology, Diabetes and Metabolism, New York University School of Medicine, New York, NY, 10016, USA
| | - Vincent W. Yang
- School of Medicine, Stony Brook University, Stony Brook, NY, 11794, USA
| | | | - Georgios Kararigas
- Charité – Universitätsmedizin Berlin, Berlin 10115, Germany
- DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin 10785, Germany
- Department of Physiology, Faculty of Medicine, University of Iceland, 101 Reykjavík, Iceland
| | - Konstantinos Drosatos
- Lewis Katz School of Medicine at Temple University, Center for Translational Medicine, Philadelphia, PA, 19131, USA
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10
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Hoffman M, Palioura D, Kyriazis ID, Cimini M, Badolia R, Rajan S, Gao E, Nikolaidis N, Schulze PC, Goldberg IJ, Kishore R, Yang VW, Bannister TD, Bialkowska AB, Selzman CH, Drakos SG, Drosatos K. Cardiomyocyte Krüppel-Like Factor 5 Promotes De Novo Ceramide Biosynthesis and Contributes to Eccentric Remodeling in Ischemic Cardiomyopathy. Circulation 2021; 143:1139-1156. [PMID: 33430631 DOI: 10.1161/circulationaha.120.047420] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
BACKGROUND We previously showed that cardiomyocyte Krϋppel-like factor (KLF) 5 regulates cardiac fatty acid oxidation. As heart failure has been associated with altered fatty acid oxidation, we investigated the role of cardiomyocyte KLF5 in lipid metabolism and pathophysiology of ischemic heart failure. METHODS Using real-time polymerase chain reaction and Western blot, we investigated the KLF5 expression changes in a myocardial infarction (MI) mouse model and heart tissue from patients with ischemic heart failure. Using 2D echocardiography, we evaluated the effect of KLF5 inhibition after MI using pharmacological KLF5 inhibitor ML264 and mice with cardiomyocyte-specific KLF5 deletion (αMHC [α-myosin heavy chain]-KLF5-/-). We identified the involvement of KLF5 in regulating lipid metabolism and ceramide accumulation after MI using liquid chromatography-tandem mass spectrometry, and Western blot and real-time polymerase chain reaction analysis of ceramide metabolism-related genes. We lastly evaluated the effect of cardiomyocyte-specific KLF5 overexpression (αMHC-rtTA [reverse tetracycline-controlled transactivator]-KLF5) on cardiac function and ceramide metabolism, and rescued the phenotype using myriocin to inhibit ceramide biosynthesis. RESULTS KLF5 mRNA and protein levels were higher in human ischemic heart failure samples and in rodent models at 24 hours, 2 weeks, and 4 weeks post-permanent left coronary artery ligation. αMHC-KLF5-/- mice and mice treated with ML264 had higher ejection fraction and lower ventricular volume and heart weight after MI. Lipidomic analysis showed that αMHC-KLF5-/- mice with MI had lower myocardial ceramide levels compared with littermate control mice with MI, although basal ceramide content of αMHC-KLF5-/- mice was not different in control mice. KLF5 ablation suppressed the expression of SPTLC1 and SPTLC2 (serine palmitoyltransferase [SPT] long-chain base subunit ()1 2, respectively), which regulate de novo ceramide biosynthesis. We confirmed our previous findings that myocardial SPTLC1 and SPTLC2 levels are increased in heart failure patients. Consistently, αMHC-rtTA-KLF5 mice showed increased SPTLC1 and SPTLC2 expression, higher myocardial ceramide levels, and systolic dysfunction beginning 2 weeks after KLF5 induction. Treatment of αMHC-rtTA-KLF5 mice with myriocin that inhibits SPT, suppressed myocardial ceramide levels and alleviated systolic dysfunction. CONCLUSIONS KLF5 is induced during the development of ischemic heart failure in humans and mice and stimulates ceramide biosynthesis. Genetic or pharmacological inhibition of KLF5 in mice with MI prevents ceramide accumulation, alleviates eccentric remodeling, and increases ejection fraction. Thus, KLF5 emerges as a novel therapeutic target for the treatment of ischemic heart failure.
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Affiliation(s)
- Matthew Hoffman
- Center for Translational Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, PA (M.H., D.P., I.D.K., C.M., S.R., E.G., R.K., K.D.)
| | - Dimitra Palioura
- Center for Translational Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, PA (M.H., D.P., I.D.K., C.M., S.R., E.G., R.K., K.D.)
| | - Ioannis D Kyriazis
- Center for Translational Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, PA (M.H., D.P., I.D.K., C.M., S.R., E.G., R.K., K.D.)
| | - Maria Cimini
- Center for Translational Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, PA (M.H., D.P., I.D.K., C.M., S.R., E.G., R.K., K.D.)
| | - Rachit Badolia
- Nora Eccles Harrison Cardiovascular Research and Training Institute, Division of Cardiovascular Medicine (S.G.D., R.B.), Salt Lake City, UT
| | - Sudarsan Rajan
- Center for Translational Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, PA (M.H., D.P., I.D.K., C.M., S.R., E.G., R.K., K.D.)
| | - Erhe Gao
- Center for Translational Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, PA (M.H., D.P., I.D.K., C.M., S.R., E.G., R.K., K.D.)
| | - Nikolas Nikolaidis
- Department of Biological Science, Center for Applied Biotechnology Studies, and Center for Computational and Applied Mathematics, College of Natural Sciences and Mathematics, California State University Fullerton (N.N.)
| | - P Christian Schulze
- Department of Internal Medicine, Division of Cardiology, Angiology, Intensive Medical Care, and Pneumology, University Hospital Jena, Germany (P.C.S.)
| | - Ira J Goldberg
- Division of Endocrinology, Diabetes and Metabolism, New York University School of Medicine (I.J.G.)
| | - Raj Kishore
- Center for Translational Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, PA (M.H., D.P., I.D.K., C.M., S.R., E.G., R.K., K.D.)
| | - Vincent W Yang
- School of Medicine, Stony Brook University, NY (V.W.Y., A.B.)
| | | | | | - Craig H Selzman
- Division of Cardiothoracic Surgery (C.H.S.), Salt Lake City, UT
| | - Stavros G Drakos
- Nora Eccles Harrison Cardiovascular Research and Training Institute, Division of Cardiovascular Medicine (S.G.D., R.B.), Salt Lake City, UT
| | - Konstantinos Drosatos
- Center for Translational Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, PA (M.H., D.P., I.D.K., C.M., S.R., E.G., R.K., K.D.)
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11
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Hoffman M, Kyriazis ID, Lucchese AM, de Lucia C, Piedepalumbo M, Bauer M, Schulze PC, Bonios MJ, Koch WJ, Drosatos K. Myocardial Strain and Cardiac Output are Preferable Measurements for Cardiac Dysfunction and Can Predict Mortality in Septic Mice. J Am Heart Assoc 2020; 8:e012260. [PMID: 31112430 PMCID: PMC6585345 DOI: 10.1161/jaha.119.012260] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Background Sepsis is the overwhelming host response to infection leading to shock and multiple organ dysfunction. Cardiovascular complications greatly increase sepsis‐associated mortality. Although murine models are routinely used for preclinical studies, the benefit of using genetically engineered mice in sepsis is countered by discrepancies between human and mouse sepsis pathophysiology. Therefore, recent guidelines have called for standardization of preclinical methods to document organ dysfunction. We investigated the course of cardiac dysfunction and myocardial load in different mouse models of sepsis to identify the optimal measurements for early systolic and diastolic dysfunction. Methods and Results We performed speckle‐tracking echocardiography and assessed blood pressure, plasma inflammatory cytokines, lactate, B‐type natriuretic peptide, and survival in mouse models of endotoxemia or polymicrobial infection (cecal ligation and puncture, [CLP]) of moderate and high severity. We observed that myocardial strain and cardiac output were consistently impaired early in both sepsis models. Suppression of cardiac output was associated with systolic dysfunction in endotoxemia or combined systolic dysfunction and reduced preload in the CLP model. We found that cardiac output at 2 hours post‐CLP is a negative prognostic indicator with high sensitivity and specificity that predicts mortality at 48 hours. Using a known antibiotic (ertapenem) treatment, we confirmed that this approach can document recovery. Conclusions We propose a non‐invasive approach for assessment of cardiac function in sepsis and myocardial strain and strain rate as preferable measures for monitoring cardiovascular function in sepsis mouse models. We further show that the magnitude of cardiac output suppression 2 hours post‐CLP can be used to predict mortality.
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Affiliation(s)
- Matthew Hoffman
- 1 Center for Translational Medicine and Department of Pharmacology Lewis Katz School of Medicine Temple University Philadelphia PA
| | - Ioannis D Kyriazis
- 1 Center for Translational Medicine and Department of Pharmacology Lewis Katz School of Medicine Temple University Philadelphia PA
| | - Anna M Lucchese
- 1 Center for Translational Medicine and Department of Pharmacology Lewis Katz School of Medicine Temple University Philadelphia PA
| | - Claudio de Lucia
- 1 Center for Translational Medicine and Department of Pharmacology Lewis Katz School of Medicine Temple University Philadelphia PA
| | - Michela Piedepalumbo
- 1 Center for Translational Medicine and Department of Pharmacology Lewis Katz School of Medicine Temple University Philadelphia PA.,2 Department of Medical, Surgical, Neurological, Metabolic and Aging Sciences University of Campania "Luigi Vanvitelli" Naples Italy
| | - Michael Bauer
- 3 Department for Anesthesiology and Intensive Care Medicine Friedrich-Schiller-University Jena Germany
| | - P Christian Schulze
- 4 Division of Cardiology, Angiology, Intensive Medical Care and Pneumology Department of Internal Medicine I University Hospital Jena Germany
| | - Michael J Bonios
- 5 Heart Failure and Transplant Unit Onassis Cardiac Surgery Center Athens Greece
| | - Walter J Koch
- 1 Center for Translational Medicine and Department of Pharmacology Lewis Katz School of Medicine Temple University Philadelphia PA
| | - Konstantinos Drosatos
- 1 Center for Translational Medicine and Department of Pharmacology Lewis Katz School of Medicine Temple University Philadelphia PA
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12
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Pfleger J, Coleman RC, Ibetti J, Roy R, Kyriazis ID, Gao E, Drosatos K, Koch WJ. Genomic Binding Patterns of Forkhead Box Protein O1 Reveal Its Unique Role in Cardiac Hypertrophy. Circulation 2020; 142:882-898. [PMID: 32640834 DOI: 10.1161/circulationaha.120.046356] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Cardiac hypertrophic growth is mediated by robust changes in gene expression and changes that underlie the increase in cardiomyocyte size. The former is regulated by RNA polymerase II (pol II) de novo recruitment or loss; the latter involves incremental increases in the transcriptional elongation activity of pol II that is preassembled at the transcription start site. The differential regulation of these distinct processes by transcription factors remains unknown. Forkhead box protein O1 (FoxO1) is an insulin-sensitive transcription factor that is also regulated by hypertrophic stimuli in the heart. However, the scope of its gene regulation remains unexplored. METHODS To address this, we performed FoxO1 chromatin immunoprecipitation-deep sequencing in mouse hearts after 7 days of isoproterenol injections (3 mg·kg-1·mg-1), transverse aortic constriction, or vehicle injection/sham surgery. RESULTS Our data demonstrate increases in FoxO1 chromatin binding during cardiac hypertrophic growth, which positively correlate with extent of hypertrophy. To assess the role of FoxO1 on pol II dynamics and gene expression, the FoxO1 chromatin immunoprecipitation-deep sequencing results were aligned with those of pol II chromatin immunoprecipitation-deep sequencing across the chromosomal coordinates of sham- or transverse aortic constriction-operated mouse hearts. This uncovered that FoxO1 binds to the promoters of 60% of cardiac-expressed genes at baseline and 91% after transverse aortic constriction. FoxO1 binding is increased in genes regulated by pol II de novo recruitment, loss, or pause-release. In vitro, endothelin-1- and, in vivo, pressure overload-induced cardiomyocyte hypertrophic growth is prevented with FoxO1 knockdown or deletion, which was accompanied by reductions in inducible genes, including Comtd1 in vitro and Fstl1 and Uck2 in vivo. CONCLUSIONS Together, our data suggest that FoxO1 may mediate cardiac hypertrophic growth via regulation of pol II de novo recruitment and pause-release; the latter represents the majority (59%) of FoxO1-bound, pol II-regulated genes after pressure overload. These findings demonstrate the breadth of transcriptional regulation by FoxO1 during cardiac hypertrophy, information that is essential for its therapeutic targeting.
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Affiliation(s)
- Jessica Pfleger
- Center for Translational Medicine, Department of Pharmacology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - Ryan C Coleman
- Center for Translational Medicine, Department of Pharmacology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - Jessica Ibetti
- Center for Translational Medicine, Department of Pharmacology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - Rajika Roy
- Center for Translational Medicine, Department of Pharmacology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - Ioannis D Kyriazis
- Center for Translational Medicine, Department of Pharmacology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - Erhe Gao
- Center for Translational Medicine, Department of Pharmacology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - Konstantinos Drosatos
- Center for Translational Medicine, Department of Pharmacology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA
| | - Walter J Koch
- Center for Translational Medicine, Department of Pharmacology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA
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13
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Hoffman M, Kyriazis ID, Dimitriou A, Mishra SK, Koch WJ, Drosatos K. B-type natriuretic peptide is upregulated by c-Jun N-terminal kinase and contributes to septic hypotension. JCI Insight 2020; 5:133675. [PMID: 32324169 PMCID: PMC7205432 DOI: 10.1172/jci.insight.133675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 03/18/2020] [Indexed: 02/06/2023] Open
Abstract
B-type natriuretic peptide (BNP) is secreted by ventricular cardiomyocytes in response to various types of cardiac stress and has been used as a heart failure marker. In septic patients, increased BNP suggests poor prognosis; however, no causal link has been established. Among various effects, BNP decreases systemic vascular resistance and increases natriuresis that leads to lower blood pressure. We previously observed that JNK inhibition corrects cardiac dysfunction and suppresses cardiac BNP mRNA in endotoxemia. In this study, we investigated the transcriptional mechanism that regulates BNP expression and the involvement of plasma BNP in causing septic hypotension. Our in vitro and in vivo findings confirmed that activation of JNK signaling increases BNP expression in sepsis via direct binding of c-Jun in activating protein–1 (AP-1) regulatory elements of the Nppb promoter. Accordingly, genetic ablation of BNP, as well as treatment with a potentially novel neutralizing anti-BNP monoclonal antibody (19B3) or suppression of its expression via administration of JNK inhibitor SP600125 improved cardiac output, stabilized blood pressure, and improved survival in mice with polymicrobial sepsis. Therefore, inhibition of JNK signaling or BNP in sepsis appears to stabilize blood pressure and improve survival.
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Affiliation(s)
- Matthew Hoffman
- Center for Translational Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania, USA
| | - Ioannis D Kyriazis
- Center for Translational Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania, USA
| | - Alexandra Dimitriou
- Center for Translational Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania, USA
| | - Santosh K Mishra
- Department of Molecular Biomedical Sciences, North Carolina State University, Raleigh, North Carolina, USA
| | - Walter J Koch
- Center for Translational Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania, USA
| | - Konstantinos Drosatos
- Center for Translational Medicine, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania, USA.,Center for Metabolic Disease Research, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania, USA
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14
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Hoffman M, Kyriazis ID, Lyons W, Rajan S, Gao E, Khan M, Bannister T, Yang V, Bialkowska A, Selzman CH, Drakos SH, Drosatos K. Cardiomyocyte Krüppel‐like Factor 5 Regulates Ceramide Biosynthesis and miR‐30 Suppression in Ischemic Cardiomyopathy and Promotes Systolic Dysfunction. FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.07226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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15
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Pol CJ, Pollak NM, Jurczak MJ, Zacharia E, Karagiannides I, Kyriazis ID, Ntziachristos P, Scerbo DA, Brown BR, Aifantis I, Shulman GI, Goldberg IJ, Drosatos K. Cardiac myocyte KLF5 regulates body weight via alteration of cardiac FGF21. Biochim Biophys Acta Mol Basis Dis 2019; 1865:2125-2137. [PMID: 31029826 PMCID: PMC6614009 DOI: 10.1016/j.bbadis.2019.04.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 12/20/2018] [Accepted: 01/06/2019] [Indexed: 01/22/2023]
Abstract
Cardiac metabolism affects systemic energetic balance. Previously, we showed that Krüppel-like factor (KLF)-5 regulates cardiomyocyte PPARα and fatty acid oxidation-related gene expression in diabetes. We surprisingly found that cardiomyocyte-specific KLF5 knockout mice (αMHC-KLF5-/-) have accelerated diet-induced obesity, associated with increased white adipose tissue (WAT). Alterations in cardiac expression of the mediator complex subunit 13 (Med13) modulates obesity. αMHC-KLF5-/- mice had reduced cardiac Med13 expression likely because KLF5 upregulates Med13 expression in cardiomyocytes. We then investigated potential mechanisms that mediate cross-talk between cardiomyocytes and WAT. High fat diet-fed αMHC-KLF5-/- mice had increased levels of cardiac and plasma FGF21, while food intake, activity, plasma leptin, and natriuretic peptides expression were unchanged. Consistent with studies reporting that FGF21 signaling in WAT decreases sumoylation-driven PPARγ inactivation, αMHC-KLF5-/- mice had less SUMO-PPARγ in WAT. Increased diet-induced obesity found in αMHC-KLF5-/- mice was absent in αMHC-[KLF5-/-;FGF21-/-] double knockout mice, as well as in αMHC-FGF21-/- mice that we generated. Thus, cardiomyocyte-derived FGF21 is a component of pro-adipogenic crosstalk between heart and WAT.
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Affiliation(s)
- Christine J Pol
- Metabolic Biology Laboratory, Lewis Katz School of Medicine at Temple University, Center for Translational Medicine, Department of Pharmacology, Philadelphia, USA
| | - Nina M Pollak
- Institute of Molecular Biosciences, University of Graz, Graz, Austria
| | - Michael J Jurczak
- Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, CT, USA
| | - Effimia Zacharia
- Metabolic Biology Laboratory, Lewis Katz School of Medicine at Temple University, Center for Translational Medicine, Department of Pharmacology, Philadelphia, USA
| | - Iordanes Karagiannides
- Inflammatory Bowel Disease Center and Neuroendocrine Assay Core, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Ioannis D Kyriazis
- Metabolic Biology Laboratory, Lewis Katz School of Medicine at Temple University, Center for Translational Medicine, Department of Pharmacology, Philadelphia, USA
| | - Panagiotis Ntziachristos
- Howard Hughes Medical Institute, Department of Pathology, NYU School of Medicine, New York, NY, USA
| | - Diego A Scerbo
- Division of Preventive Medicine and Nutrition, Columbia University, New York, NY 10032, USA
| | - Brett R Brown
- Metabolic Biology Laboratory, Lewis Katz School of Medicine at Temple University, Center for Translational Medicine, Department of Pharmacology, Philadelphia, USA
| | - Iannis Aifantis
- Howard Hughes Medical Institute, Department of Pathology, NYU School of Medicine, New York, NY, USA
| | - Gerald I Shulman
- Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, CT, USA
| | - Ira J Goldberg
- Division of Preventive Medicine and Nutrition, Columbia University, New York, NY 10032, USA
| | - Konstantinos Drosatos
- Metabolic Biology Laboratory, Lewis Katz School of Medicine at Temple University, Center for Translational Medicine, Department of Pharmacology, Philadelphia, USA.
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16
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Kalliora C, Kyriazis ID, Oka SI, Lieu MJ, Yue Y, Area-Gomez E, Pol CJ, Tian Y, Mizushima W, Chin A, Scerbo D, Schulze PC, Civelek M, Sadoshima J, Madesh M, Goldberg IJ, Drosatos K. Dual peroxisome-proliferator-activated-receptor-α/γ activation inhibits SIRT1-PGC1α axis and causes cardiac dysfunction. JCI Insight 2019; 5:129556. [PMID: 31393858 DOI: 10.1172/jci.insight.129556] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Dual peroxisome proliferator-activated receptor (PPAR)α/γ agonists that were developed to target hyperlipidemia and hyperglycemia in type 2 diabetes patients, caused cardiac dysfunction or other adverse effects. We studied the mechanisms that underlie the cardiotoxic effects of a dual PPARα/γ agonist, tesaglitazar, in wild type and diabetic (leptin receptor deficient - db/db) mice. Mice treated with tesaglitazar-containing chow or high fat diet developed cardiac dysfunction despite lower plasma triglycerides and glucose levels. Expression of cardiac peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC1α), which promotes mitochondrial biogenesis, had the most profound reduction among various fatty acid metabolism genes. Furthermore, we observed increased acetylation of PGC1α, which suggests PGC1α inhibition and lowered sirtuin 1 (SIRT1) expression. This change was associated with lower mitochondrial abundance. Combined pharmacological activation of PPARα and PPARγ in C57BL/6 mice reproduced the reduction of PGC1α expression and mitochondrial abundance. Resveratrol-mediated SIRT1 activation attenuated tesaglitazar-induced cardiac dysfunction and corrected myocardial mitochondrial respiration in C57BL/6 and diabetic mice but not in cardiomyocyte-specific Sirt1-/- mice. Our data shows that drugs, which activate both PPARα and PPARγ lead to cardiac dysfunction associated with PGC1α suppression and lower mitochondrial abundance likely due to competition between these two transcription factors.
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Affiliation(s)
- Charikleia Kalliora
- Center for Translational Medicine, Department of Pharmacology, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania, USA.,Faculty of Medicine, University of Crete, Voutes, Greece
| | - Ioannis D Kyriazis
- Center for Translational Medicine, Department of Pharmacology, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania, USA
| | - Shin-Ichi Oka
- Cardiovascular Research Institute, Department of Cell Biology and Molecular Medicine, Rutgers New Jersey Medical School, Newark, New Jersey, USA
| | - Melissa J Lieu
- Center for Translational Medicine, Department of Pharmacology, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania, USA
| | - Yujia Yue
- Center for Translational Medicine, Department of Pharmacology, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania, USA
| | - Estela Area-Gomez
- Department of Neurology, Columbia University Irving Medical Center, New York, New York, USA
| | - Christine J Pol
- Center for Translational Medicine, Department of Pharmacology, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania, USA
| | - Ying Tian
- Center for Translational Medicine, Department of Pharmacology, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania, USA
| | - Wataru Mizushima
- Cardiovascular Research Institute, Department of Cell Biology and Molecular Medicine, Rutgers New Jersey Medical School, Newark, New Jersey, USA
| | - Adave Chin
- Cardiovascular Research Institute, Department of Cell Biology and Molecular Medicine, Rutgers New Jersey Medical School, Newark, New Jersey, USA
| | - Diego Scerbo
- Division of Preventive Medicine and Nutrition, Columbia University, New York, New York, USA.,NYU Langone School of Medicine, Division of Endocrinology, Diabetes and Metabolism, New York, New York, USA
| | - P Christian Schulze
- Department of Internal Medicine I, Division of Cardiology, Angiology, Intensive Medical Care and Pneumology, University Hospital Jena, Jena, Germany
| | - Mete Civelek
- Center for Public Health Genomics, Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, USA
| | - Junichi Sadoshima
- Cardiovascular Research Institute, Department of Cell Biology and Molecular Medicine, Rutgers New Jersey Medical School, Newark, New Jersey, USA
| | - Muniswamy Madesh
- Center for Translational Medicine, Department of Pharmacology, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania, USA
| | - Ira J Goldberg
- NYU Langone School of Medicine, Division of Endocrinology, Diabetes and Metabolism, New York, New York, USA
| | - Konstantinos Drosatos
- Center for Translational Medicine, Department of Pharmacology, Lewis Katz School of Medicine at Temple University, Philadelphia, Pennsylvania, USA
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Kyriazis ID, Hoffman M, Kalliora C, Gaignebet L, Bannister TD, Christofidou-Solomidou M, Goldberg IJ, Yang VW, Bialkowska AB, Kararigas G, Drosatos K. Abstract 548: Cardiomyocyte-KLF5 Expression is Increased by FOXO1 and Accounts for Cardiomyopathy in Type-1 Diabetes. Circ Res 2019. [DOI: 10.1161/res.125.suppl_1.548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Cardiomyopathy in type 1 diabetes (T1D) is accompanied by altered cardiac energetics, impaired mitochondrial function and oxidative stress. We showed previously increased cardiac expression of Krüppel-like factor 5 (KLF5) and Peroxisome Proliferator Activated Receptor (PPAR)α at late T1D stage in mice. We confirmed that KLF5 expression is higher in cardiomyocytes of diabetic patients than in non-diabetic individuals. Mechanistic analyses in human cardiomyocyte cells (AC16) and in mice with cardiomyocyte-specific FOXO1 deletion (αMHC-
Foxo1
-/-
) revealed that FOXO1 activation accounts for the increased KLF5 expression via direct binding on Klf5 promoter. Both pharmacologic and cardiomyocyte-specific inhibition of KLF5 alleviated diabetic-related cardiac dysfunction. Accordingly, mice with doxycycline-mediated cardiomyocyte-specific KLF5 constitutive expression (αMHC-rtTA-
Klf5
) recapitulated cardiomyopathy even in the absence of T1D. We also showed that diabetic PPARα
-/-
mice had elevated cardiac KLF5 expression and cardiac dysfunction, suggesting that KLF5-driven diabetic cardiomyopathy is PPARα-independent. Furthermore, cardiomyocyte KLF5 upregulation was associated with oxidative stress, increased NADPH oxidase (NOX)4 expression, lower NADPH levels and impaired cellular Ca
2+
handling. Conversely, KLF5 inhibition prevented NOX4 upregulation and alleviated cardiac superoxide formation. Lipidomic analysis followed by Euclidean clustering showed strong correlation of lipidome profiles between αMHC-rtTA-
Klf5
mice and diabetic C57BL/6 mice, while diabetic αMHC-
Klf5
-/-
mice and diabetic C57BL/6 mice that were treated with pharmacologic KLF5 inhibitor grouped with the non-diabetic C57BL/6 mice. Further analysis of individual lipid species showed increased ceramide accumulation in diabetic C57BL/6 and αMHC-rtTA-
Klf5
mice that was reversed upon KLF5 inhibition. Treatment of αMHC-rtTA-
Klf5
mice and diabetic C57BL/6 mice with the antioxidant LGM2605 improved partially cardiac dysfunction. In conclusion, cardiomyocyte KLF5 expression is activated by FOXO1 and drives diabetic cardiomyopathy in a non-PPARα-dependent manner, suggesting KLF5 inhibition as a therapeutic intervention in T1D cardiomyopathy.
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Affiliation(s)
| | | | | | - Lea Gaignebet
- Charité – Universitätsmedizin Berlin, Berlin, Germany
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Kokkinaki D, Hoffman M, Kalliora C, Kyriazis ID, Maning J, Lucchese AM, Shanmughapriya S, Tomar D, Park JY, Wang H, Yang XF, Madesh M, Lymperopoulos A, Koch WJ, Christofidou-Solomidou M, Drosatos K. Chemically synthesized Secoisolariciresinol diglucoside (LGM2605) improves mitochondrial function in cardiac myocytes and alleviates septic cardiomyopathy. J Mol Cell Cardiol 2019; 127:232-245. [PMID: 30611795 DOI: 10.1016/j.yjmcc.2018.12.016] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 12/14/2018] [Accepted: 12/27/2018] [Indexed: 02/07/2023]
Abstract
Sepsis is the overwhelming systemic immune response to infection, which can result in multiple organ dysfunction and septic shock. Myocardial dysfunction during sepsis is associated with advanced disease and significantly increased in-hospital mortality. Our group has shown that energetic failure and excess reactive oxygen species (ROS) generation constitute major components of myocardial dysfunction in sepsis. Because ROS production is central to cellular metabolic health, we tested if the synthetic anti-oxidant lignan secoisolariciresinol diglucoside (SDG; LGM2605) would alleviate septic cardiac dysfunction and investigated the underlying mechanism. Using the cecal ligation and puncture (CLP) mouse model of peritonitis-induced sepsis, we observed impairment of cardiac function beginning at 4 h post-CLP surgery. Treatment of mice with LGM2605 (100 mg/kg body weight, i.p.) 6 h post-CLP surgery reduced cardiac ROS accumulation and restored cardiac function. Assessment of mitochondrial respiration (Seahorse XF) in primary cardiomyocytes obtained from adult C57BL/6 mice that had undergone CLP and treatment with LGM2605 showed restored basal and maximal respiration, as well as preserved oxygen consumption rate (OCR) associated with spare capacity. Further analyses aiming to identify the cellular mechanisms that may account for improved cardiac function showed that LGM2605 restored mitochondria abundance, increased mitochondrial calcium uptake and preserved mitochondrial membrane potential. In addition to protecting against cardiac dysfunction, daily treatment with LGM2605 and antibiotic ertapenem (70 mg/kg) protected against CLP-associated mortality and reversed hypothermia when compared against mice receiving ertapenem and saline. Therefore, treatment of septic mice with LGM2605 emerges as a novel pharmacological approach that reduces cardiac ROS accumulation, protects cardiac mitochondrial function, alleviates cardiac dysfunction, and improves survival.
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Affiliation(s)
- Dimitra Kokkinaki
- Center for Translational Medicine and Department of Pharmacology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA; Faculty of Medicine, University of Crete, Voutes, Greece
| | - Matthew Hoffman
- Center for Translational Medicine and Department of Pharmacology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Charikleia Kalliora
- Center for Translational Medicine and Department of Pharmacology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA; Faculty of Medicine, University of Crete, Voutes, Greece
| | - Ioannis D Kyriazis
- Center for Translational Medicine and Department of Pharmacology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Jennifer Maning
- Laboratory for the Study of Neurohormonal Control of the Circulation, Nova Southeastern University College of Pharmacy, Fort Lauderdale, FL, USA
| | - Anna Maria Lucchese
- Center for Translational Medicine and Department of Pharmacology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Santhanam Shanmughapriya
- Center for Translational Medicine and Department of Pharmacology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Dhanendra Tomar
- Center for Translational Medicine and Department of Pharmacology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Joon Young Park
- Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Hong Wang
- Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA; Center for Metabolic Disease Research, Department of Pharmacology Lewis Katz School of Medicine, Temple University, 3500 Broad Street, Philadelphia, PA 19140, USA
| | - Xiao-Feng Yang
- Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA; Center for Metabolic Disease Research, Department of Pharmacology Lewis Katz School of Medicine, Temple University, 3500 Broad Street, Philadelphia, PA 19140, USA
| | - Muniswamy Madesh
- Center for Translational Medicine and Department of Pharmacology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Anastasios Lymperopoulos
- Laboratory for the Study of Neurohormonal Control of the Circulation, Nova Southeastern University College of Pharmacy, Fort Lauderdale, FL, USA
| | - Walter J Koch
- Center for Translational Medicine and Department of Pharmacology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Melpo Christofidou-Solomidou
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Pennsylvania Perelman School of Medicine, USA
| | - Konstantinos Drosatos
- Center for Translational Medicine and Department of Pharmacology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA.
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Koutsoni OS, Karampetsou K, Kyriazis ID, Stathopoulos P, Aligiannis N, Halabalaki M, Skaltsounis LA, Dotsika E. Evaluation of total phenolic fraction derived from extra virgin olive oil for its antileishmanial activity. Phytomedicine 2018; 47:143-150. [PMID: 30166099 DOI: 10.1016/j.phymed.2018.04.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 02/05/2018] [Accepted: 04/15/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Leishmaniasis is a neglected and emerging disease with varying clinical manifestations. The current treatment options rely on limited chemotherapy with serious drawbacks. Thus, there is an increasing interest in the identification of new candidates for designing potent, less toxic and low-cost drugs. PURPOSE The purpose of this study was to evaluate the potential antileishmanial activity of the total phenolic fraction (TPF) derived from extra virgin olive oil (EVOO) when added in in vitro and in vivo experimental models of Leishmania infection. STUDY DESIGN We investigated the in vitro antileishmanial activity of TPF against two Leishmania species: a viscerotropic (L. infantum) and a dermotropic (L. major) strain. The antileishmanial effect was also tested in vivo in a murine cutaneous leishmaniasis model using L. major-infected BALB/c mice. METHODS Separation and analytical methodologies were applied in order to extract the olive oil phenols (TPF) and determine the concentration of the major ones, respectively. The in vitro antileishmanial activity of TPF against promastigotes and intracellular amastigotes was determined by the resazurin cell viability assay. The TPF-induced nitric oxide synthesis by L. infantum and L. major -infected J774A.1 macrophages was determined using the Griess reaction, while the respective generation of reactive oxygen species was assessed by flow cytometry. Moreover, L. major-infected BALB/c mice were treated with TPF and its in vivo therapeutic effect was determined as reduction of the footpad swelling. RESULTS Our data showed that TPF exhibits inhibitory effect against cell free promastigotes and intracellular amastigotes of both L. infantum and L. major parasite strains. TPF demonstrated to be selectively active against Leishmania amastigotes and its antileishmanial activity was possibly mediated by reactive nitrogen and oxygen intermediates generated from the infected J774A.1 macrophages. Furthermore, administration of TPF in BALB/c mice infected with L. major caused significant reduction of footpad swelling demonstrating in vivo its antileishmanial effect. Based on HPLC-DAD analysis the major components of TPF are tyrosol, hydroxytyrosol, oleacein and oleocanthal. CONCLUSION This study brings a new low-cost candidate to the leishmaniasis drug discovery pipeline, upon further pharmacological investigation.
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Affiliation(s)
- Olga S Koutsoni
- Laboratory of Cellular Immunology, Department of Microbiology, Hellenic Pasteur Institute, 127 Vas. Sofias av. 11521 Athens, Greece
| | - Kalliopi Karampetsou
- Laboratory of Cellular Immunology, Department of Microbiology, Hellenic Pasteur Institute, 127 Vas. Sofias av. 11521 Athens, Greece; Division of Pharmacognosy and Natural Product Chemistry, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou GR-15771 Athens, Greece
| | - Ioannis D Kyriazis
- Laboratory of Cellular Immunology, Department of Microbiology, Hellenic Pasteur Institute, 127 Vas. Sofias av. 11521 Athens, Greece
| | - Panagiotis Stathopoulos
- Division of Pharmacognosy and Natural Product Chemistry, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou GR-15771 Athens, Greece
| | - Nektarios Aligiannis
- Division of Pharmacognosy and Natural Product Chemistry, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou GR-15771 Athens, Greece
| | - Maria Halabalaki
- Division of Pharmacognosy and Natural Product Chemistry, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou GR-15771 Athens, Greece
| | - Leandros A Skaltsounis
- Division of Pharmacognosy and Natural Product Chemistry, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou GR-15771 Athens, Greece
| | - Eleni Dotsika
- Laboratory of Cellular Immunology, Department of Microbiology, Hellenic Pasteur Institute, 127 Vas. Sofias av. 11521 Athens, Greece.
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Kyriazis ID, Koutsoni OS, Aligiannis N, Karampetsou K, Skaltsounis AL, Dotsika E. The leishmanicidal activity of oleuropein is selectively regulated through inflammation- and oxidative stress-related genes. Parasit Vectors 2016; 9:441. [PMID: 27501956 PMCID: PMC4977900 DOI: 10.1186/s13071-016-1701-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 07/14/2016] [Indexed: 11/14/2022] Open
Abstract
Background Much research effort has been focused on investigating new compounds derived from low-cost sources, such as natural products, for treating leishmaniasis. Oleuropein derived from numerous plants, particularly from the olive tree, Olea europaea L. (Oleaceae), is a biophenol with many biological activities. Our previous findings showed that oleuropein exhibits leishmanicidal effects against three Leishmania spp. in vitro, and minimizes the parasite burden in L. donovani-infected BALB/c mice. The aim of the present study is to investigate the possible mechanism(s) that mediate this leishmanicidal activity. Methods We determined the efficacy of oleuropein in elevating ROS and NO production in L. donovani-infected J774A.1 macrophages and in explanted splenocytes and hepatocytes obtained from L. donovani-infected BALB/c mice. We also assessed the expression of genes that are related to inflammation, T-cell polarization and antioxidant defense, in splenocytes. Finally, we determined the ratios of specific IgG2a/IgG1 antibodies and DTH reactions in L. donovani-infected BALB/c mice treated with oleuropein. Results Oleuropein was able to elevate ROS production in both in vitro and in vivo models of visceral leishmaniasis and raised NO production in ex vivo cultures of splenocytes and hepatocytes. The extensive oxidative stress found in oleuropein-treated mice was obviated by the upregulation of the host’s antioxidant enzyme (mGCLC) and the simultaneous downregulation of the corresponding enzyme of the parasite (LdGCLC). Moreover, oleuropein was able to mount a significant Th1 polarization characterized by the expression of immune genes (IL-12β, IL-10, TGF-β1, IFN-γ) and transcription factors (Tbx21 and GATA3). Moreover, this immunomodulatory effect was also correlated with an inhibitory effect on IL-1β gene expression, rather than with the expression of IL-1α, IL-1rn and TNF-α. Furthermore, oleuropein-treated BALB/c mice mounted a delayed-type hypersensitivity (DTH) response and an elevated Leishmania-specific IgG2a/IgG1 ratio that clearly demonstrated an in vivo protective mechanism. Conclusion The ability of Oleuropein to promote a Th1 type immune response in L. donovani-infected BALB/c mice points towards the candidacy of this bioactive compound as an immunomodulatory agent that may complement therapeutic approaches to leishmaniasis.
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Affiliation(s)
- Ioannis D Kyriazis
- Laboratory of Cellular Immunology, Hellenic Pasteur Institute, 127 Vas. Sofias Ave., 11521, Athens, Greece.,VIVUS research and diagnostic center, 160 Konstanta str, Volos, Greece
| | - Olga S Koutsoni
- Laboratory of Cellular Immunology, Hellenic Pasteur Institute, 127 Vas. Sofias Ave., 11521, Athens, Greece
| | - Nektarios Aligiannis
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771, Athens, Greece
| | - Kalliopi Karampetsou
- Laboratory of Cellular Immunology, Hellenic Pasteur Institute, 127 Vas. Sofias Ave., 11521, Athens, Greece
| | - Alexios-Leandros Skaltsounis
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771, Athens, Greece
| | - Eleni Dotsika
- Laboratory of Cellular Immunology, Hellenic Pasteur Institute, 127 Vas. Sofias Ave., 11521, Athens, Greece.
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