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Binek A, Castans C, Jorge I, Bagwan N, Rodríguez JM, Fernández-Jiménez R, Galán-Arriola C, Oliver E, Gómez M, Clemente-Moragón A, Ibanez B, Camafeita E, Vázquez J. Oxidative Post-translational Protein Modifications upon Ischemia/Reperfusion Injury. Antioxidants (Basel) 2024; 13:106. [PMID: 38247530 PMCID: PMC10812827 DOI: 10.3390/antiox13010106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 12/30/2023] [Accepted: 01/12/2024] [Indexed: 01/23/2024] Open
Abstract
While reperfusion, or restoration of coronary blood flow in acute myocardial infarction, is a requisite for myocardial salvage, it can paradoxically induce a specific damage known as ischemia/reperfusion (I/R) injury. Our understanding of the precise pathophysiological molecular alterations leading to I/R remains limited. In this study, we conducted a comprehensive and unbiased time-course analysis of post-translational modifications (PTMs) in the post-reperfused myocardium of two different animal models (pig and mouse) and evaluated the effect of two different cardioprotective therapies (ischemic preconditioning and neutrophil depletion). In pigs, a first wave of irreversible oxidative damage was observed at the earliest reperfusion time (20 min), impacting proteins essential for cardiac contraction. A second wave, characterized by irreversible oxidation on different residues and reversible Cys oxidation, occurred at late stages (6-12 h), affecting mitochondrial, sarcomere, and inflammation-related proteins. Ischemic preconditioning mitigated the I/R damage caused by the late oxidative wave. In the mouse model, the two-phase pattern of oxidative damage was replicated, and neutrophil depletion mitigated the late wave of I/R-related damage by preventing both Cys reversible oxidation and irreversible oxidation. Altogether, these data identify protein PTMs occurring late after reperfusion as an actionable therapeutic target to reduce the impact of I/R injury.
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Grants
- PGC2018-097019-B-I00, PID2021-122348NB-I00, PID2022-140176OB-I00 Spanish Ministry of Science, Innovation and Universities
- Fondo de Investigación Sanitaria grant PRB3 PT17/0019/0003- ISCIII-SGEFI / ERDF, ProteoRed Instituto de Salud Carlos III
- IMMUNO-VAR, P2022/BMD-7333, and RENIM-CM, P2022/BMD-7403 Comunidad de Madrid
- HR17-00247, HR22-00533 and HR22-00253 "la Caixa" Banking Foundation
- ERC Consolidator Grant "MATRIX", 819775 European Commission
- grant PI22/01560 ISCIII-Fondo de Investigación Sanitaria and European Union
- FP7-PEOPLE-2013-ITN-Cardionext European Union's Seventh Framework Programme
- Formacion del Profesorado Universitario (FPU14/05292) Spanish Ministry of Education, Culture and Sports
- PID2021-133167OB-100, RYC2020-028884-I, CEX2020-001041-S MCIN/AEI/10.13039/501100011033
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Affiliation(s)
- Aleksandra Binek
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Melchor Fernández Almagro, 3, 28029 Madrid, Spain
| | - Celia Castans
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Melchor Fernández Almagro, 3, 28029 Madrid, Spain
| | - Inmaculada Jorge
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Melchor Fernández Almagro, 3, 28029 Madrid, Spain
- CIBER de Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid, Spain
| | - Navratan Bagwan
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Melchor Fernández Almagro, 3, 28029 Madrid, Spain
| | - José Manuel Rodríguez
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Melchor Fernández Almagro, 3, 28029 Madrid, Spain
| | - Rodrigo Fernández-Jiménez
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Melchor Fernández Almagro, 3, 28029 Madrid, Spain
- CIBER de Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid, Spain
- Department of Cardiology, Hospital Universitario Clínico San Carlos, Profesor Martín Lagos, s/n, 28040 Madrid, Spain
| | - Carlos Galán-Arriola
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Melchor Fernández Almagro, 3, 28029 Madrid, Spain
- CIBER de Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid, Spain
| | - Eduardo Oliver
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Melchor Fernández Almagro, 3, 28029 Madrid, Spain
- CIBER de Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid, Spain
- Centro de Investigaciones Biológicas Margarita Salas (CIB), CSIC, Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Mónica Gómez
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Melchor Fernández Almagro, 3, 28029 Madrid, Spain
| | - Agustín Clemente-Moragón
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Melchor Fernández Almagro, 3, 28029 Madrid, Spain
- CIBER de Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid, Spain
| | - Borja Ibanez
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Melchor Fernández Almagro, 3, 28029 Madrid, Spain
- CIBER de Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid, Spain
- IIS-Fundación Jiménez Díaz Hospital, Avenida Reyes Católicos, 2, 28040 Madrid, Spain
| | - Emilio Camafeita
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Melchor Fernández Almagro, 3, 28029 Madrid, Spain
- CIBER de Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid, Spain
| | - Jesús Vázquez
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Melchor Fernández Almagro, 3, 28029 Madrid, Spain
- CIBER de Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid, Spain
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2
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Seefeldt JM, Libai Y, Berg K, Jespersen NR, Lassen TR, Dalsgaard FF, Ryhammer P, Pedersen M, Ilkjaer LB, Hu MA, Erasmus ME, Nielsen RR, Bøtker HE, Caspi O, Eiskjær H, Moeslund N. Effects of ketone body 3-hydroxybutyrate on cardiac and mitochondrial function during donation after circulatory death heart transplantation. Sci Rep 2024; 14:757. [PMID: 38191915 PMCID: PMC10774377 DOI: 10.1038/s41598-024-51387-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 01/04/2024] [Indexed: 01/10/2024] Open
Abstract
Normothermic regional perfusion (NRP) allows assessment of therapeutic interventions prior to donation after circulatory death transplantation. Sodium-3-hydroxybutyrate (3-OHB) increases cardiac output in heart failure patients and diminishes ischemia-reperfusion injury, presumably by improving mitochondrial metabolism. We investigated effects of 3-OHB on cardiac and mitochondrial function in transplanted hearts and in cardiac organoids. Donor pigs (n = 14) underwent circulatory death followed by NRP. Following static cold storage, hearts were transplanted into recipient pigs. 3-OHB or Ringer's acetate infusions were initiated during NRP and after transplantation. We evaluated hemodynamics and mitochondrial function. 3-OHB mediated effects on contractility, relaxation, calcium, and conduction were tested in cardiac organoids from human pluripotent stem cells. Following NRP, 3-OHB increased cardiac output (P < 0.0001) by increasing stroke volume (P = 0.006), dP/dt (P = 0.02) and reducing arterial elastance (P = 0.02). Following transplantation, infusion of 3-OHB maintained mitochondrial respiration (P = 0.009) but caused inotropy-resistant vasoplegia that prevented weaning. In cardiac organoids, 3-OHB increased contraction amplitude (P = 0.002) and shortened contraction duration (P = 0.013) without affecting calcium handling or conduction velocity. 3-OHB had beneficial cardiac effects and may have a potential to secure cardiac function during heart transplantation. Further studies are needed to optimize administration practice in donors and recipients and to validate the effect on mitochondrial function.
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Affiliation(s)
- Jacob Marthinsen Seefeldt
- Department of Cardiology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark.
- Department of Clinical Medicine, Aarhus University, Palle Juul-Jensens Boulevard 82, 8200, Aarhus N, Denmark.
| | - Yaara Libai
- The Laboratory for Cardiovascular Precision Medicine, Rapport Faculty of Medicine, Technion and Rambam's Cardiovascular Research and Innovation Center, 2 Efron St, Haifa, Israel
| | - Katrine Berg
- Department of Cardiology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark
- Department of Clinical Medicine, Aarhus University, Palle Juul-Jensens Boulevard 82, 8200, Aarhus N, Denmark
| | - Nichlas Riise Jespersen
- Department of Cardiology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark
| | - Thomas Ravn Lassen
- Department of Cardiology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark
| | - Frederik Flyvholm Dalsgaard
- Department of Cardiology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark
- Comparative Medicine Lab, Department of Clinical Medicine, Aarhus University, Palle Juul-Jensens Boulevard 82, 8200, Aarhus N, Denmark
| | - Pia Ryhammer
- Department of Anesthesiology, Regional Hospital Silkeborg, Falkevej 1A, 8600, Silkeborg, Denmark
| | - Michael Pedersen
- Comparative Medicine Lab, Department of Clinical Medicine, Aarhus University, Palle Juul-Jensens Boulevard 82, 8200, Aarhus N, Denmark
| | - Lars Bo Ilkjaer
- Department of Cardiothoracic and Vascular Surgery, Aarhus University Hospital, Palle Juul-Jensens, Boulevard 99, 8200, Aarhus N, Denmark
| | - Michiel A Hu
- Department of Cardiothoracic Surgery, University Medical Center Groningen, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands
| | - Michiel E Erasmus
- Department of Cardiothoracic Surgery, University Medical Center Groningen, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands
| | - Roni R Nielsen
- Department of Cardiology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark
| | - Hans Erik Bøtker
- Department of Clinical Medicine, Aarhus University, Palle Juul-Jensens Boulevard 82, 8200, Aarhus N, Denmark
| | - Oren Caspi
- The Laboratory for Cardiovascular Precision Medicine, Rapport Faculty of Medicine, Technion and Rambam's Cardiovascular Research and Innovation Center, 2 Efron St, Haifa, Israel
| | - Hans Eiskjær
- Department of Cardiology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark
| | - Niels Moeslund
- Department of Cardiothoracic and Vascular Surgery, Aarhus University Hospital, Palle Juul-Jensens, Boulevard 99, 8200, Aarhus N, Denmark
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Wang YC, Shao YD, Shao CL, Guan XQ, Lu PP, Ning K, Liu BN, Guo HD. Dihydrotanshinone I reduces H9c2 cell damage by regulating AKT and MAPK signaling pathways. In Vitro Cell Dev Biol Anim 2024; 60:89-97. [PMID: 38253954 DOI: 10.1007/s11626-023-00839-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 11/30/2023] [Indexed: 01/24/2024]
Abstract
Cardiovascular disease is the deadliest disease in the world. Previous studies have shown that Dihydrotanshinone I (DHT) can improve cardiac function after myocardial injury. This study aimed to observe the protective effect and mechanism of DHT on H9c2 cells by establishing an oxygen-glucose deprivation/reoxygenation (OGD/R) injury model. By constructing OGD/R injury simulation of H9c2 cells in a myocardial injury model, the proliferation of H9c2 cells treated with DHT concentrations of 0.1 μmol/L were not affected at 24, 48, and 72 h. DHT can significantly reduce the apoptosis of H9c2 cells caused by OGD/R. Compared with the OGD/R group, DHT treatment significantly reduced the level of MDA and increased the level of SOD in cells. DHT treatment of cells can significantly reduce the levels of ROS and Superoxide in mitochondria in H9c2 cells caused by OGD/R and H2O2. DHT significantly reduced the phosphorylation levels of P38MAPK and ERK in H9c2 cells induced by OGD/R, and significantly increased the phosphorylation levels of AKT in H9c2 cells. DHT can significantly reduce the oxidative stress damage of H9c2 cells caused by H2O2 and OGD/R, thereby reducing the apoptosis of H9c2 cells. And this may be related to regulating the phosphorylation levels of AKT, ERK, and P38MAPK.
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Affiliation(s)
- Ya-Chao Wang
- School of Integrated Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Academy of Integrated Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yi-da Shao
- School of Integrated Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Academy of Integrated Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Chang-le Shao
- School of Integrated Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Academy of Integrated Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xiao-Qi Guan
- School of Traditional Chinese Medicine & School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Ping-Ping Lu
- School of Integrated Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ke Ning
- School of Integrated Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Bao-Nian Liu
- School of Integrated Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Hai-Dong Guo
- School of Integrated Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
- Academy of Integrated Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
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Hypothermia Prevents Cardiac Dysfunction during Acute Ischemia Reperfusion by Maintaining Mitochondrial Bioenergetics and by Promoting Hexokinase II Binding to Mitochondria. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:4476448. [PMID: 35873800 PMCID: PMC9301761 DOI: 10.1155/2022/4476448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 03/04/2022] [Accepted: 06/14/2022] [Indexed: 11/18/2022]
Abstract
Background Hypothermia (H), cardioplegia (CP), and both combined (HCP) are known to be protective against myocardial ischemia reperfusion (IR) injury. Mitochondria have molecular signaling mechanisms that are associated with both cell survival and cell death. In this study, we investigated the dynamic changes in proapoptotic and prosurvival signaling pathways mediating H, CP, or HCP-induced protection of mitochondrial function after acute myocardial IR injury. Methods Rats were divided into five groups. Each group consists of 3 subgroups based on a specific reperfusion time (5, 20, or 60 min) after a 25-min global ischemia. The time control (TC) groups were not subjected to IR but were perfused with 37 °C Krebs-Ringer's (KR) buffer, containing 4.5 mM K+, in a specific perfusion protocol that corresponded with the duration of each IR protocol. The IR group (control) was perfused for 20 min with KR, followed by 25-min global ischemia, and then KR reperfusion for 5, 20, or 60 min. The treatment groups were exposed to 17 °C H, 37 °C CP (16 mM K+), or HCP (17 °C + CP) for 5 min before ischemia and for 2 min on reperfusion before switching to 37 °C KR perfusion for the remainder of each of the reperfusion times. Cardiac function and mitochondrial redox state (NADH/FAD) were monitored online in the ex vivo hearts before, during, and after ischemia. Mitochondria were isolated at the end of each specified reperfusion time, and changes in O2 consumption, membrane potential (ΔΨm), and Ca2+ retention capacity (CRC) were assessed using complex I and complex II substrates. In another set of hearts, mitochondrial and cytosolic fractions were isolated after a specified reperfusion time to conduct western blot assays to determine hexokinase II (HKII) and Bax binding/translocation to mitochondria, cytosolic pAkt levels, and cytochrome c (Cyto-c) release into the cytosol. Results H and HCP were more protective of mitochondrial integrity and, concomitantly, cardiac function than CP alone; H and HCP improved post-ischemic cardiac function by (1) maintaining mitochondrial bioenergetics, (2) maintaining HKII binding to mitochondria with an increase in pAkt levels, (3) increasing CRC, and (4) decreasing Cyto-c release during reperfusion. Bax translocation/binding to mitochondria was unaffected by any treatment, regardless of cardiac functional recovery. Conclusions Hypothermia preserved mitochondrial function and cardiac function, in part, by maintaining mitochondrial bioenergetics, by retaining HKII binding to mitochondria via upstream pAkt, and by reducing Cyto-c release independently of Bax binding to mitochondria.
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Shakeri F, Bibak B, Safdari MR, Keshavarzi Z, Jamialahmadi T, Sathyapalan T, Sahebkar A. Cellular and molecular mechanisms of curcumin on thyroid gland disorders. Curr Med Chem 2022; 29:2878-2890. [PMID: 35142266 DOI: 10.2174/0929867329666220210145033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 11/13/2021] [Accepted: 11/21/2021] [Indexed: 11/22/2022]
Abstract
There is growing literature on the positive therapeutic potentials of curcumin. Curcumin or diferuloylmethane is a polyphenol obtained from the plant Curcuma longa. Curcumin has been used widely in Ayurvedic and Chinese medicine for various conditions. The role of curcumin on thyroid glands has been shown by its effects on various biological pathways, including anti-inflammatory, antioxidant, anti-proliferative, apoptosis, angiogenesis, cell cycle and metastasis. We reviewed the recent literature on curcumin applications for thyroid dysfunction, including hyperthyroidism and hypothyroidism, and discussed the molecular mechanisms of these effects. This review aims to summarize the wealth of research related to the thyroid gland therapeutic effect of curcumin.
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Affiliation(s)
- Farzaneh Shakeri
- Natural Products and Medicinal Plants Research Center, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Bahram Bibak
- Natural Products and Medicinal Plants Research Center, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Mohammad Reza Safdari
- Department of Orthopedic Surgery, Imam Ali Hospital, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Zakieh Keshavarzi
- Natural Products and Medicinal Plants Research Center, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Tannaz Jamialahmadi
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Thozhukat Sathyapalan
- Department of Academic Diabetes, Endocrinology and Metabolism, Hull York Medical School, University of Hull, Hull, UK
| | - Amirhossein Sahebkar
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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The Antioxidant Transcription Factor Nrf2 in Cardiac Ischemia-Reperfusion Injury. Int J Mol Sci 2021; 22:ijms222111939. [PMID: 34769371 PMCID: PMC8585042 DOI: 10.3390/ijms222111939] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/27/2021] [Accepted: 10/30/2021] [Indexed: 12/25/2022] Open
Abstract
Nuclear factor erythroid-2 related factor 2 (Nrf2) is a transcription factor that controls cellular defense responses against toxic and oxidative stress by modulating the expression of genes involved in antioxidant response and drug detoxification. In addition to maintaining redox homeostasis, Nrf2 is also involved in various cellular processes including metabolism and inflammation. Nrf2 activity is tightly regulated at the transcriptional, post-transcriptional and post-translational levels, which allows cells to quickly respond to pathological stress. In the present review, we describe the molecular mechanisms underlying the transcriptional regulation of Nrf2. We also focus on the impact of Nrf2 in cardiac ischemia-reperfusion injury, a condition that stimulates the overproduction of reactive oxygen species. Finally, we analyze the protective effect of several natural and synthetic compounds that induce Nrf2 activation and protect against ischemia-reperfusion injury in the heart and other organs, and their potential clinical application.
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Role of Oxidative Stress in Reperfusion following Myocardial Ischemia and Its Treatments. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6614009. [PMID: 34055195 PMCID: PMC8149218 DOI: 10.1155/2021/6614009] [Citation(s) in RCA: 103] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 02/21/2021] [Accepted: 04/29/2021] [Indexed: 12/15/2022]
Abstract
Myocardial ischemia is a disease with high morbidity and mortality, for which reperfusion is currently the standard intervention. However, the reperfusion may lead to further myocardial damage, known as myocardial ischemia/reperfusion injury (MI/RI). Oxidative stress is one of the most important pathological mechanisms in reperfusion injury, which causes apoptosis, autophagy, inflammation, and some other damage in cardiomyocytes through multiple pathways, thus causing irreversible cardiomyocyte damage and cardiac dysfunction. This article reviews the pathological mechanisms of oxidative stress involved in reperfusion injury and the interventions for different pathways and targets, so as to form systematic treatments for oxidative stress-induced myocardial reperfusion injury and make up for the lack of monotherapy.
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Mesenchymal Stem Cell Transplantation for Ischemic Diseases: Mechanisms and Challenges. Tissue Eng Regen Med 2021; 18:587-611. [PMID: 33884577 DOI: 10.1007/s13770-021-00334-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 02/07/2021] [Accepted: 02/16/2021] [Indexed: 12/20/2022] Open
Abstract
Ischemic diseases are conditions associated with the restriction or blockage of blood supply to specific tissues. These conditions can cause moderate to severe complications in patients, and can lead to permanent disabilities. Since they are blood vessel-related diseases, ischemic diseases are usually treated with endothelial cells or endothelial progenitor cells that can regenerate new blood vessels. However, in recent years, mesenchymal stem cells (MSCs) have shown potent bioeffects on angiogenesis, thus playing a role in blood regeneration. Indeed, MSCs can trigger angiogenesis at ischemic sites by several mechanisms related to their trans-differentiation potential. These mechanisms include inhibition of apoptosis, stimulation of angiogenesis via angiogenic growth factors, and regulation of immune responses, as well as regulation of scarring to suppress blood vessel regeneration when needed. However, preclinical and clinical trials of MSC transplantation in ischemic diseases have shown some limitations in terms of treatment efficacy. Such studies have emphasized the current challenges of MSC-based therapies. Treatment efficacy could be enhanced if the limitations were better understood and potentially resolved. This review will summarize some of the strategies by which MSCs have been utilized for ischemic disease treatment, and will highlight some challenges of those applications as well as suggesting some strategies to improve treatment efficacy.
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Daiber A, Andreadou I, Oelze M, Davidson SM, Hausenloy DJ. Discovery of new therapeutic redox targets for cardioprotection against ischemia/reperfusion injury and heart failure. Free Radic Biol Med 2021; 163:325-343. [PMID: 33359685 DOI: 10.1016/j.freeradbiomed.2020.12.026] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 12/10/2020] [Accepted: 12/16/2020] [Indexed: 02/06/2023]
Abstract
Global epidemiological studies reported a shift from maternal/infectious communicable diseases to chronic non-communicable diseases and a major part is attributable to atherosclerosis and metabolic disorders. Accordingly, ischemic heart disease was identified as a leading risk factor for global mortality and morbidity with a prevalence of 128 million people. Almost 9 million premature deaths can be attributed to ischemic heart disease and subsequent acute myocardial infarction and heart failure, also representing a substantial socioeconomic burden. As evidenced by typical oxidative stress markers such as lipid peroxidation products or oxidized DNA/RNA bases, the formation of reactive oxygen species by various sources (NADPH oxidases, xanthine oxidase and mitochondrial resperatory chain) plays a central role for the severity of ischemia/reperfusion damage. The underlying mechanisms comprise direct oxidative damage but also adverse redox-regulation of kinase and calcium signaling, inflammation and cardiac remodeling among others. These processes and the role of reactive oxygen species are discussed in the present review. We also present and discuss potential targets for redox-based therapies that are either already established in the clinics (e.g. guanylyl cyclase activators and stimulators) or at least successfully tested in preclinical models of myocardial infarction and heart failure (mitochondria-targeted antioxidants). However, reactive oxygen species have not only detrimental effects but are also involved in essential cellular signaling and may even act protective as seen by ischemic pre- and post-conditioning or eustress - which makes redox therapy quite challenging.
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Affiliation(s)
- Andreas Daiber
- Department of Cardiology 1, Molecular Cardiology, University Medical Center, Langenbeckstr. 1, 55131, Mainz, Germany; Partner Site Rhine-Main, German Center for Cardiovascular Research (DZHK), Langenbeckstr. 1, 55131, Mainz, Germany.
| | - Ioanna Andreadou
- Laboratory of Pharmacology, Faculty of Pharmacy, National and Kapodistrian University of Athens, 15771, Athens, Greece
| | - Matthias Oelze
- Department of Cardiology 1, Molecular Cardiology, University Medical Center, Langenbeckstr. 1, 55131, Mainz, Germany
| | - Sean M Davidson
- The Hatter Cardiovascular Institute, 67 Chenies Mews, London, WC1E 6HX, United Kingdom
| | - Derek J Hausenloy
- The Hatter Cardiovascular Institute, 67 Chenies Mews, London, WC1E 6HX, United Kingdom; Cardiovascular & Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore; National Heart Research Institute Singapore, National Heart Centre, Singapore; Yong Loo Lin School of Medicine, National University Singapore, Singapore; Cardiovascular Research Center, College of Medical and Health Sciences, Asia University, Taiwan.
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10
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Tang J, Jin L, Liu Y, Li L, Ma Y, Lu L, Ma J, Ding P, Yang X, Liu J, Yang J. Exosomes Derived from Mesenchymal Stem Cells Protect the Myocardium Against Ischemia/Reperfusion Injury Through Inhibiting Pyroptosis. DRUG DESIGN DEVELOPMENT AND THERAPY 2020; 14:3765-3775. [PMID: 32982181 PMCID: PMC7505733 DOI: 10.2147/dddt.s239546] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 07/25/2020] [Indexed: 12/19/2022]
Abstract
Objective Mesenchymal stem cells (MSCs) show unique advantages in cardiomyocyte repairment. Exosomes derived from MSCs can enhance the viability of myocardial cells after ischemia/reperfusion (I/R) injury and regulate inflammation response. The study was designed to ascertain whether MSCs-exo protect the myocardium against I/R injury through inhibiting pyroptosis, and the underlying mechanisms. Methods and Results Experiments were carried out in H/R and I/R model. Cell viability was inhibited and NLRP3 and caspase1 protein levels were upregulated in H/R model. However, MSCs could inhibit cell apoptosis and pyroptosis in H/R model. Moreover, we used MSCs-exo to treated H/R model, and flow cytometric analysis results showed the inhibition function of MSCs-exo on cell apoptosis, and Western blot data suggested that NLRP3 and Caspase-1 expressions were downregulated in H/R model. Furthermore, exosomal miR-320b targeted NLRP3 protein, and MSCs-exo OE could inhibit NLRP3 expression and pyroptosis in H/R. In addition, the inhibition function of MSCs-exo on pyroptosis also was found in I/R model, and HE and Tunel staining also got similar results. Conclusion Exosomes derived from mesenchymal stem cells could protect the myocardium against ischemia/reperfusion injury through inhibiting pyroptosis.
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Affiliation(s)
- Jiayou Tang
- Department of Cardiovascular Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an, Shaanxi Province, People's Republic of China
| | - Lu Jin
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Maxillofacial Plastic Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi Province, People's Republic of China
| | - Yang Liu
- Department of Cardiovascular Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an, Shaanxi Province, People's Republic of China
| | - Lanlan Li
- Department of Cardiovascular Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an, Shaanxi Province, People's Republic of China
| | - Yanyan Ma
- Department of Cardiovascular Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an, Shaanxi Province, People's Republic of China
| | - Linhe Lu
- Department of Cardiovascular Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an, Shaanxi Province, People's Republic of China
| | - Jipeng Ma
- Department of Cardiovascular Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an, Shaanxi Province, People's Republic of China
| | - Peng Ding
- Department of Cardiovascular Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an, Shaanxi Province, People's Republic of China
| | - Xiuling Yang
- Department of Cardiovascular Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an, Shaanxi Province, People's Republic of China
| | - Jincheng Liu
- Department of Cardiovascular Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an, Shaanxi Province, People's Republic of China
| | - Jian Yang
- Department of Cardiovascular Surgery, Xijing Hospital, Air Force Military Medical University, Xi'an, Shaanxi Province, People's Republic of China
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11
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The Role of Oxidative Stress in Cardiac Disease: From Physiological Response to Injury Factor. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:5732956. [PMID: 32509147 PMCID: PMC7244977 DOI: 10.1155/2020/5732956] [Citation(s) in RCA: 119] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 01/11/2020] [Accepted: 04/22/2020] [Indexed: 02/07/2023]
Abstract
Reactive oxygen species (ROS) are highly reactive chemical species containing oxygen, controlled by both enzymatic and nonenzymatic antioxidant defense systems. In the heart, ROS play an important role in cell homeostasis, by modulating cell proliferation, differentiation, and excitation-contraction coupling. Oxidative stress occurs when ROS production exceeds the buffering capacity of the antioxidant defense systems, leading to cellular and molecular abnormalities, ultimately resulting in cardiac dysfunction. In this review, we will discuss the physiological sources of ROS in the heart, the mechanisms of oxidative stress-related myocardial injury, and the implications of experimental studies and clinical trials with antioxidant therapies in cardiovascular diseases.
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12
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Mitochondrial ROS in myocardial ischemia reperfusion and remodeling. Biochim Biophys Acta Mol Basis Dis 2020; 1866:165768. [PMID: 32173461 DOI: 10.1016/j.bbadis.2020.165768] [Citation(s) in RCA: 185] [Impact Index Per Article: 46.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 03/03/2020] [Accepted: 03/09/2020] [Indexed: 12/19/2022]
Abstract
Despite major progress in interventional and medical treatments, myocardial infarction (MI) and subsequent development of heart failure (HF) are still associated with high mortality. Both during ischemia reperfusion (IR) in the acute setting of MI, as well as in the chronic remodeling process following MI, oxidative stress substantially contributes to cardiac damage. Reactive oxygen species (ROS) generated within mitochondria are particular drivers of mechanisms contributing to IR injury, including induction of mitochondrial permeability transition or oxidative damage of intramitochondrial structures and molecules. But even beyond the acute setting, mechanisms like inflammatory signaling, extracellular remodeling, or pro-apoptotic signaling that contribute to post-infarction remodeling are regulated by mitochondrial ROS. In the current review, we discuss both sources and consequences of mitochondrial ROS during IR and in the chronic setting following MI, thereby emphasizing the potential therapeutic value of attenuating mitochondrial ROS to improve outcome and prognosis for patients suffering MI.
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13
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Zhao T, Qiu Z, Gao Y. MiR-137-3p exacerbates the ischemia-reperfusion injured cardiomyocyte apoptosis by targeting KLF15. Naunyn Schmiedebergs Arch Pharmacol 2019; 393:1013-1024. [PMID: 31822940 DOI: 10.1007/s00210-019-01728-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 09/06/2019] [Indexed: 12/24/2022]
Abstract
Ischemia-reperfusion (I/R) injury is a kind of the tissue damage caused by an abrupt re-supplying tissue with blood after a period of ischemia or hypoxia. It contributes to a wide range of pathological processes including kidney injury, circulatory arrest, and especially cardiovascular disease. However, the underlying pathological mechanism is not fully elucidated. Previously, extensive studies demonstrated that miRNAs participate in the pathogenesis of I/R injury, such as I/R-induced cardiomyocyte apoptosis. Here, we found that miR-137-3p, a mature form of miR-137, was up-regulated in I/R-injured cardiomyocytes of myocardial infarction patients. Deficiency of miR-137-3p partly alleviated the cardiomyocyte apoptosis and oxidative stress induced by hypoxia-reoxygenation (H/R) treatment in H9c2 cells. Also, we provided evidences that miR-137-3p directly targeted the 3' UTR of KLF15 mRNA to down-regulate its expression, and loss function of KLF15 significantly abolished the deleterious effects of ectopic miR-137-3p on cardiomyocytes both in vitro and in vivo. Collectively, these observations highlight a molecular perturbation in the pathogenesis of I/R injury in cardiomyocytes.
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Affiliation(s)
- Tingting Zhao
- Department of Cardiology, Peace hospital attached to Changzhi, Changzhi, 046000, Shanxi, People's Republic of China
| | - Zhi Qiu
- Department of Cardiology, Peace hospital attached to Changzhi, Changzhi, 046000, Shanxi, People's Republic of China
| | - Yonghua Gao
- Department of Cardiology, Peace hospital attached to Changzhi, Changzhi, 046000, Shanxi, People's Republic of China. .,Department of Cardiology, The Xiangya Hospital of central south university, Changsha, 410000, Hunan, People's Republic of China. .,Department of Clinical Laboratory, Affiliated Hospital of Xuzhou Medical University, 89 Huaihai Road, Xuzhou, 221000, Jiangsu, People's Republic of China.
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14
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Boardman NT, Falck AT, Lund T, Chu X, Martin-Armas M, Norvik JV, Jenssen TG, Ytrehus K. Human concentrations of uric acid scavenges adaptive and maladaptive reactive oxygen species in isolated rat hearts subjected to ischemic stress. Can J Physiol Pharmacol 2019; 98:139-146. [PMID: 31518503 DOI: 10.1139/cjpp-2019-0024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Uric acid is a purine degradation product but also an important antioxidant and reactive oxygen species (ROS) scavenger. Experimental settings that mimic myocardial ischemia-reperfusion have not included uric acid despite that it is always present in human extracellular fluid and plasma. We hypothesized that uric acid has an important role in myocardial ROS scavenging. Here, we tested the cardiac response to uric acid on infarct size following ischemia-reperfusion with and without exacerbated oxidative stress due to acute pressure overload and during preconditioning. We also examined mitochondrial respiration and ROS-induced mitochondrial permeability transition pore opening. Under exacerbated ROS stress induced by high-pressure perfusion, uric acid lowered oxidative stress and reduced infarct size. In contrast, uric acid blocked cardioprotection induced by ischemic preconditioning. However, this effect was reversed by probenecid, an inhibitor of cellular uptake of uric acid. In accordance, in intact cardiomyocytes, extracellular uric acid reduced the susceptibility of mitochondria towards opening of the permeability transition pore, suggesting that uric acid may prevent ischemia-reperfusion injury due to scavenging of maladaptive ROS. Moreover, as uric acid also scavenges adaptive ROS, this may interfere with preconditioning. Altogether, uric acid might be a confounder when translating preclinical experimental results into clinical treatment.
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Affiliation(s)
- Neoma T Boardman
- Cardiovascular Research Group, Department of Medical Biology, UiT-Arctic University of Norway, Tromsø, Norway
| | - Aleksander Tank Falck
- Cardiovascular Research Group, Department of Medical Biology, UiT-Arctic University of Norway, Tromsø, Norway
| | - Trine Lund
- Cardiovascular Research Group, Department of Medical Biology, UiT-Arctic University of Norway, Tromsø, Norway
| | - Xi Chu
- Cardiovascular Research Group, Department of Medical Biology, UiT-Arctic University of Norway, Tromsø, Norway
| | - Montserrat Martin-Armas
- Cardiovascular Research Group, Department of Medical Biology, UiT-Arctic University of Norway, Tromsø, Norway
| | - Jon V Norvik
- Cardiovascular Research Group, Department of Medical Biology, UiT-Arctic University of Norway, Tromsø, Norway.,Metabolic and Renal Research Group, Department of Clinical Medicine, UiT-Arctic University of Norway, Tromsø, Norway
| | - Trond G Jenssen
- Metabolic and Renal Research Group, Department of Clinical Medicine, UiT-Arctic University of Norway, Tromsø, Norway.,Department of Organ Transplantation, Section of Nephrology, Oslo University Hospital, Oslo, Norway
| | - Kirsti Ytrehus
- Cardiovascular Research Group, Department of Medical Biology, UiT-Arctic University of Norway, Tromsø, Norway
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15
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Smenes BT, Bækkerud FH, Slagsvold KH, Hassel E, Wohlwend M, Pinho M, Høydal M, Wisløff U, Rognmo Ø, Wahba A. Acute exercise is not cardioprotective and may induce apoptotic signalling in heart surgery: a randomized controlled trial. Interact Cardiovasc Thorac Surg 2019; 27:95-101. [PMID: 29447379 DOI: 10.1093/icvts/ivx439] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2017] [Accepted: 12/21/2017] [Indexed: 01/07/2023] Open
Abstract
OBJECTIVES During open-heart surgery, the myocardium experiences ischaemia-reperfusion injury. A single bout of moderate, 30-min exercise induces preconditioning and protects the heart from ischaemia-reperfusion injury in rats, but this has never been investigated in humans. We aimed to investigate whether 1 bout of moderate exercise 24 h prior to surgery protects against mitochondrial and cardiac damage. METHODS Patients scheduled for elective coronary artery bypass were eligible for this pilot study. Twenty were included and randomized to the treadmill exercise group (the EX group, n = 10) 24 h preoperatively or to standard presurgical procedures (control n = 10). Right atrial (RA) and left ventricular (LV) biopsies were collected immediately before and as long as possible after aortic cross-clamping to assess the primary outcome of mitochondrial respiration by respirometry, in addition to reactive oxygen species production by fluorometry and apoptotic transcripts. Cardiac troponin T and creatine kinase myocardial brain were measured in plasma at arrival, before surgery and 6 and 24 h postoperatively. RESULTS Mitochondrial respiration was lower in the EX group after surgery in the LV (Complex I -22%, P < 0.05 and maximal -23%, P < 0.05) and the right atrium (Complex I -25%, P < 0.05). Transcript level of the apoptosis-related marker caspase 3 was increased 1.5-fold in the LV prior to surgery in the EX group when compared with the control group, P < 0.05. Cardiac troponin T was 45% higher in the EX group than in the control group 6 h postoperatively (P = 0.03), although not significant when corrected for aortic cross-clamping time. CONCLUSIONS Results indicate that exercise did not precondition the heart against surgery-related damage. Exercise may render the myocardium and mitochondria more vulnerable to perioperative damage. Clinical trials registration number NCT00218985 (https://clinicaltrials.gov/ct2/show/NCT00218985).
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Affiliation(s)
- Benedikte T Smenes
- Department of Circulation and Medical Imaging, K.G. Jebsen Center of Exercise in Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Fredrik H Bækkerud
- Department of Circulation and Medical Imaging, K.G. Jebsen Center of Exercise in Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Katrine H Slagsvold
- Department of Cardiothoracic Surgery, St. Olav's University Hospital, Trondheim, Norway
| | - Erlend Hassel
- Department of Circulation and Medical Imaging, K.G. Jebsen Center of Exercise in Medicine, Norwegian University of Science and Technology, Trondheim, Norway.,Clinic of Thoracic and Occupational Medicine, St. Olav's University Hospital, Trondheim, Norway
| | - Martin Wohlwend
- Department of Circulation and Medical Imaging, K.G. Jebsen Center of Exercise in Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Maria Pinho
- Group of Molecular and Cellular Cardiology, Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway
| | - Morten Høydal
- Group of Molecular and Cellular Cardiology, Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway
| | - Ulrik Wisløff
- Department of Circulation and Medical Imaging, K.G. Jebsen Center of Exercise in Medicine, Norwegian University of Science and Technology, Trondheim, Norway.,School of Human Movement and Nutrition Sciences, University of Queensland, Australia
| | - Øivind Rognmo
- Department of Circulation and Medical Imaging, K.G. Jebsen Center of Exercise in Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Alexander Wahba
- Department of Circulation and Medical Imaging, K.G. Jebsen Center of Exercise in Medicine, Norwegian University of Science and Technology, Trondheim, Norway.,Department of Cardiothoracic Surgery, St. Olav's University Hospital, Trondheim, Norway
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16
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Detaille D, Pasdois P, Sémont A, Dos Santos P, Diolez P. An old medicine as a new drug to prevent mitochondrial complex I from producing oxygen radicals. PLoS One 2019; 14:e0216385. [PMID: 31048932 PMCID: PMC6497312 DOI: 10.1371/journal.pone.0216385] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 04/21/2019] [Indexed: 12/25/2022] Open
Abstract
Findings Here, we demonstrate that OP2113 (5-(4-Methoxyphenyl)-3H-1,2-dithiole-3-thione, CAS 532-11-6), synthesized and used as a drug since 1696, does not act as an unspecific antioxidant molecule (i.e., as a radical scavenger) but unexpectedly decreases mitochondrial reactive oxygen species (ROS/H2O2) production by acting as a specific inhibitor of ROS production at the IQ site of complex I of the mitochondrial respiratory chain. Studies performed on isolated rat heart mitochondria also showed that OP2113 does not affect oxidative phosphorylation driven by complex I or complex II substrates. We assessed the effect of OP2113 on an infarct model of ex vivo rat heart in which mitochondrial ROS production is highly involved and showed that OP2113 protects heart tissue as well as the recovery of heart contractile activity. Conclusion / Significance This work represents the first demonstration of a drug authorized for use in humans that can prevent mitochondria from producing ROS/H2O2. OP2113 therefore appears to be a member of the new class of mitochondrial ROS blockers (S1QELs) and could protect mitochondrial function in numerous diseases in which ROS-induced mitochondrial dysfunction occurs. These applications include but are not limited to aging, Parkinson’s and Alzheimer's diseases, cardiac atrial fibrillation, and ischemia-reperfusion injury.
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Affiliation(s)
- Dominique Detaille
- IHU Liryc, L’institut de rythmologie et modélisation cardiaque, Fondation Bordeaux Université, Pessac-Bordeaux, France
- Université de Bordeaux, Bordeaux, France
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux, Bordeaux, France
| | - Philippe Pasdois
- IHU Liryc, L’institut de rythmologie et modélisation cardiaque, Fondation Bordeaux Université, Pessac-Bordeaux, France
- Université de Bordeaux, Bordeaux, France
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux, Bordeaux, France
| | - Audrey Sémont
- IHU Liryc, L’institut de rythmologie et modélisation cardiaque, Fondation Bordeaux Université, Pessac-Bordeaux, France
- Université de Bordeaux, Bordeaux, France
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux, Bordeaux, France
| | - Pierre Dos Santos
- IHU Liryc, L’institut de rythmologie et modélisation cardiaque, Fondation Bordeaux Université, Pessac-Bordeaux, France
- Université de Bordeaux, Bordeaux, France
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux, Bordeaux, France
- Centre Hospitalo-Universitaire de Bordeaux (CHU), Pôle Cardio-thoracique, Pessac, France
| | - Philippe Diolez
- IHU Liryc, L’institut de rythmologie et modélisation cardiaque, Fondation Bordeaux Université, Pessac-Bordeaux, France
- Université de Bordeaux, Bordeaux, France
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux, Bordeaux, France
- * E-mail:
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17
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Ait-Aissa K, Heisner JS, Norwood Toro LE, Bruemmer D, Doyon G, Harmann L, Geurts A, Camara AKS, Beyer AM. Telomerase Deficiency Predisposes to Heart Failure and Ischemia-Reperfusion Injury. Front Cardiovasc Med 2019; 6:31. [PMID: 31001540 PMCID: PMC6454001 DOI: 10.3389/fcvm.2019.00031] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 03/07/2019] [Indexed: 12/13/2022] Open
Abstract
Introduction: Elevated levels of mitochondrial reactive oxygen species (ROS) contribute to the development of numerous cardiovascular diseases. TERT, the catalytic subunit of telomerase, has been shown to translocate to mitochondria to suppress ROS while promoting ATP production. Acute overexpression of TERT increases survival and decreases infarct size in a mouse model of myocardial infarct, while decreased telomerase activity predisposes to mitochondrial defects and heart failure. In the present study, we examined the role of TERT on cardiac structure and function under basal conditions and conditions of acute or prolonged stress in a novel rat model of TERT deficiency. Methods: Cardiac structure and function were evaluated via transthoracic echocardiogram. Langendorff preparations were used to test the effects of acute global ischemia reperfusion injury on cardiac function and infarction. Coronary flow and left ventricular pressure were measured during and after ischemia/reperfusion (I/R). Mitochondrial DNA integrity was measured by PCR and mitochondrial respiration was assessed in isolated mitochondria using an Oxygraph. Angiotensin II infusion was used as an established model of systemic stress. Results: No structural changes (echocardiogram) or coronary flow/left ventricle pressure (isolated hearts) were observed in TERT-/- rats at baseline; however, after I/R, coronary flow was significantly reduced in TERT-/- compared to wild type (WT) rats, while diastolic Left Ventricle Pressure was significantly elevated (n = 6 in each group; p < 0.05) in the TERT-/-. Interestingly, infarct size was less in TERT-/- rats compared to WT rats, while mitochondrial respiratory control index decreased and mitochondrial DNA lesions increased in TERT-/- compared to WT. Angiotensin II treatment did not alter cardiac structure or function; however, it augmented the infarct size significantly more in TERT-/- compared to the WT. Conclusion: Absence of TERT activity increases susceptibility to stress like cardiac injury. These results suggest a critical role of telomerase in chronic heart disease.
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Affiliation(s)
- Karima Ait-Aissa
- Cardiovascular Center, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, United States
| | - James S. Heisner
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Laura E. Norwood Toro
- Cardiovascular Center, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Dennis Bruemmer
- Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA, United States
| | - Genevieve Doyon
- Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA, United States
| | - Leanne Harmann
- Cardiovascular Center, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Aron Geurts
- Cardiovascular Center, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, United States
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Amadou K. S. Camara
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, WI, United States
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Andreas M. Beyer
- Cardiovascular Center, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, United States
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, United States
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18
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Things get broken: the hypoxia-inducible factor prolyl hydroxylases in ischemic heart disease. Basic Res Cardiol 2019; 114:16. [PMID: 30859331 DOI: 10.1007/s00395-019-0725-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 03/01/2019] [Indexed: 12/19/2022]
Abstract
A major challenge in developing new treatments for myocardial infarction (MI) is an improved understanding of the pathophysiology of hypoxic tissue damage and the activation of endogenous adaptive programs to hypoxia. Due to the relevance of oxygen in metabolism, molecular adaptation to hypoxia driven by the hypoxia-inducible factors (HIFs) and the HIF-regulating prolyl hydroxylase domain enzymes (PHDs) is pivotal for the survival of cells and tissue under hypoxia. The heart under ischemic stress will extensively rely on these mechanisms of endogenous cardiac protection until hypoxia becomes too severe. In the past, work from several laboratories has provided evidence that inhibition of HIF-regulating PHDs might improve the outcome in ischemic heart disease (IHD) potentially because the adaptive mechanisms are boosted early and vigorously. Here, we review the role of the HIF hydroxylase pathway in IHD and highlight the potential of PHD inhibitors as a new treatment for MI with special regard to acute ischemia, reperfusion, and regeneration of the heart.
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19
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Mohsin AA, Chen Q, Quan N, Rousselle T, Maceyka MW, Samidurai A, Thompson J, Hu Y, Li J, Lesnefsky EJ. Mitochondrial Complex I Inhibition by Metformin Limits Reperfusion Injury. J Pharmacol Exp Ther 2019; 369:282-290. [PMID: 30846619 DOI: 10.1124/jpet.118.254300] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 02/26/2019] [Indexed: 12/12/2022] Open
Abstract
Transient, reversible blockade of complex I during early reperfusion after ischemia limits cardiac injury. We studied the cardioprotection of high dose of metformin in cultured cells and mouse hearts via the novel mechanism of acute downregulation of complex I. The effect of high dose of metformin on complex I activity was studied in isolated heart mitochondria and cultured H9c2 cells. Protection with metformin was evaluated in H9c2 cells at reoxygenation and at early reperfusion in isolated perfused mouse hearts and in vivo regional ischemia reperfusion. Acute, high-dose metformin treatment inhibited complex I in ischemia-damaged mitochondria and in H9c2 cells following hypoxia. Accompanying the complex I modulation, high-dose metformin at reoxygenation decreased death in H9c2 cells. Acute treatment with high-dose metformin at the end of ischemia reduced infarct size following ischemia reperfusion in vitro and in vivo, including in the AMP kinase-dead mouse. Metformin treatment during early reperfusion improved mitochondrial calcium retention capacity, indicating decreased permeability transition pore (MPTP) opening. Acute, high-dose metformin therapy decreased cardiac injury through inhibition of complex I accompanied by attenuation of MPTP opening. Moreover, in contrast to chronic metformin treatment, protection by acute, high-dose metformin is independent of AMP-activated protein kinase activation. Thus, a single, high-dose metformin treatment at reperfusion reduces cardiac injury via modulation of complex I.
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Affiliation(s)
- Ahmed A Mohsin
- Department of Biochemistry and Molecular Biology (A.A.M., M.W.M., E.J.L.) and Pauley Heart Center, Division of Cardiology, Department of Internal Medicine (Q.C., A.S., J.T., Y.H., E.J.L.), Virginia Commonwealth University, Richmond, Virginia; Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi (N.Q., T.R., J.L.); and Cardiology Section Medical Service, McGuire Veterans Affairs Medical Center, Richmond, Virginia (E.J.L.)
| | - Qun Chen
- Department of Biochemistry and Molecular Biology (A.A.M., M.W.M., E.J.L.) and Pauley Heart Center, Division of Cardiology, Department of Internal Medicine (Q.C., A.S., J.T., Y.H., E.J.L.), Virginia Commonwealth University, Richmond, Virginia; Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi (N.Q., T.R., J.L.); and Cardiology Section Medical Service, McGuire Veterans Affairs Medical Center, Richmond, Virginia (E.J.L.)
| | - Nanhu Quan
- Department of Biochemistry and Molecular Biology (A.A.M., M.W.M., E.J.L.) and Pauley Heart Center, Division of Cardiology, Department of Internal Medicine (Q.C., A.S., J.T., Y.H., E.J.L.), Virginia Commonwealth University, Richmond, Virginia; Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi (N.Q., T.R., J.L.); and Cardiology Section Medical Service, McGuire Veterans Affairs Medical Center, Richmond, Virginia (E.J.L.)
| | - Thomas Rousselle
- Department of Biochemistry and Molecular Biology (A.A.M., M.W.M., E.J.L.) and Pauley Heart Center, Division of Cardiology, Department of Internal Medicine (Q.C., A.S., J.T., Y.H., E.J.L.), Virginia Commonwealth University, Richmond, Virginia; Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi (N.Q., T.R., J.L.); and Cardiology Section Medical Service, McGuire Veterans Affairs Medical Center, Richmond, Virginia (E.J.L.)
| | - Michael W Maceyka
- Department of Biochemistry and Molecular Biology (A.A.M., M.W.M., E.J.L.) and Pauley Heart Center, Division of Cardiology, Department of Internal Medicine (Q.C., A.S., J.T., Y.H., E.J.L.), Virginia Commonwealth University, Richmond, Virginia; Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi (N.Q., T.R., J.L.); and Cardiology Section Medical Service, McGuire Veterans Affairs Medical Center, Richmond, Virginia (E.J.L.)
| | - Arun Samidurai
- Department of Biochemistry and Molecular Biology (A.A.M., M.W.M., E.J.L.) and Pauley Heart Center, Division of Cardiology, Department of Internal Medicine (Q.C., A.S., J.T., Y.H., E.J.L.), Virginia Commonwealth University, Richmond, Virginia; Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi (N.Q., T.R., J.L.); and Cardiology Section Medical Service, McGuire Veterans Affairs Medical Center, Richmond, Virginia (E.J.L.)
| | - Jeremy Thompson
- Department of Biochemistry and Molecular Biology (A.A.M., M.W.M., E.J.L.) and Pauley Heart Center, Division of Cardiology, Department of Internal Medicine (Q.C., A.S., J.T., Y.H., E.J.L.), Virginia Commonwealth University, Richmond, Virginia; Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi (N.Q., T.R., J.L.); and Cardiology Section Medical Service, McGuire Veterans Affairs Medical Center, Richmond, Virginia (E.J.L.)
| | - Ying Hu
- Department of Biochemistry and Molecular Biology (A.A.M., M.W.M., E.J.L.) and Pauley Heart Center, Division of Cardiology, Department of Internal Medicine (Q.C., A.S., J.T., Y.H., E.J.L.), Virginia Commonwealth University, Richmond, Virginia; Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi (N.Q., T.R., J.L.); and Cardiology Section Medical Service, McGuire Veterans Affairs Medical Center, Richmond, Virginia (E.J.L.)
| | - Ji Li
- Department of Biochemistry and Molecular Biology (A.A.M., M.W.M., E.J.L.) and Pauley Heart Center, Division of Cardiology, Department of Internal Medicine (Q.C., A.S., J.T., Y.H., E.J.L.), Virginia Commonwealth University, Richmond, Virginia; Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi (N.Q., T.R., J.L.); and Cardiology Section Medical Service, McGuire Veterans Affairs Medical Center, Richmond, Virginia (E.J.L.)
| | - Edward J Lesnefsky
- Department of Biochemistry and Molecular Biology (A.A.M., M.W.M., E.J.L.) and Pauley Heart Center, Division of Cardiology, Department of Internal Medicine (Q.C., A.S., J.T., Y.H., E.J.L.), Virginia Commonwealth University, Richmond, Virginia; Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, Mississippi (N.Q., T.R., J.L.); and Cardiology Section Medical Service, McGuire Veterans Affairs Medical Center, Richmond, Virginia (E.J.L.)
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20
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Paradies G, Paradies V, Ruggiero FM, Petrosillo G. Mitochondrial bioenergetics and cardiolipin alterations in myocardial ischemia-reperfusion injury: implications for pharmacological cardioprotection. Am J Physiol Heart Circ Physiol 2018; 315:H1341-H1352. [PMID: 30095969 DOI: 10.1152/ajpheart.00028.2018] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Mitochondrial dysfunction plays a central role in myocardial ischemia-reperfusion (I/R) injury. Increased reactive oxygen species production, impaired electron transport chain activity, aberrant mitochondrial dynamics, Ca2+ overload, and opening of the mitochondrial permeability transition pore have been proposed as major contributory factors to mitochondrial dysfunction during myocardial I/R injury. Cardiolipin (CL), a mitochondria-specific phospholipid, plays a pivotal role in multiple mitochondrial bioenergetic processes, including respiration and energy conversion, in mitochondrial morphology and dynamics as well as in several steps of the apoptotic process. Changes in CL levels, species composition, and degree of oxidation may have deleterious consequences for mitochondrial function with important implications in a variety of pathophysiological conditions, including myocardial I/R injury. In this review, we focus on the role played by CL alterations in mitochondrial dysfunction in myocardial I/R injury. Pharmacological strategies to prevent myocardial injury during I/R targeting mitochondrial CL are also examined.
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Affiliation(s)
- Giuseppe Paradies
- Department of Biosciences, Biotechnologies, and Biopharmaceutics, University of Bari , Bari , Italy
| | | | - Francesca Maria Ruggiero
- Department of Biosciences, Biotechnologies, and Biopharmaceutics, University of Bari , Bari , Italy
| | - Giuseppe Petrosillo
- Institute of Biomembranes, Bioenergetics, and Molecular Biotechnologies, National Research Council , Bari , Italy
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Single-lung ventilation and oxidative stress: a different perspective on a common practice. Curr Opin Anaesthesiol 2018; 30:42-49. [PMID: 27783023 DOI: 10.1097/aco.0000000000000410] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
PURPOSE OF REVIEW To summarize what is currently known about the relationship between single-lung ventilation (SLV), oxidative stress, and postoperative disruption of organ function. RECENT FINDINGS SLV produces progressive alelectasis that is associated with hypoxic pulmonary vasoconstriction and redistribution of blood flow away from the nonventilated lung. This local tissue hypoxia induces the generation of reactive oxygen and reactive nitrogen species, an effect subsequently amplified by lung re-expansion consistent with well described hypoxia/reperfusion responses. Both experimental and clinical data indicate that the magnitude of oxidative and nitrosative stress is related to the duration of SLV and that these stresses affect not only the collapsed/re-expanded lung, but other organs as well. SUMMARY SLV and subsequent re-expansion of atelectatic lung are associated with the generation of reactive oxygen and nitrogen species that may modulate persistent systemic effects.
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Hydrogen Sulfide Alleviates Acute Myocardial Ischemia Injury by Modulating Autophagy and Inflammation Response under Oxidative Stress. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:3402809. [PMID: 30154948 PMCID: PMC6093072 DOI: 10.1155/2018/3402809] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 04/01/2018] [Accepted: 04/17/2018] [Indexed: 02/07/2023]
Abstract
This study aims to investigate the influence of excessive oxidative stress on cardiac injury during acute myocardial ischemia (AMI), with a focus on apoptosis, autophagy, and inflammatory cell infiltration, and to detect the role of hydrogen sulfide (H2S) in this process. We found that SOD1 knockout (KO) mice showed excessive oxidative stress and exacerbated myocardium injury after AMI. Increased apoptosis and inflammation response in the ischemic myocardium contribute to this deterioration, whereas enhanced autophagy plays a protective role. Myocardial inflammation after AMI was much more severe in SOD1 KO mice than in wild-type mice. Pretreatment with the H2S donor NaHS reduced autophagy and apoptosis levels in the ischemic myocardium and alleviated the regional inflammation response in the cardiac tissues of SOD1 KO mice. Moreover, autophagy and apoptosis levels were significantly enhanced in SOD1 knockdown primary neonatal rat cardiomyocytes (NRCMs) under glucose deprivation. Pretreatment with NaHS can partially inhibit this elevation. Taken together, we found that excessive oxidative stress can aggravate cardiac injury during AMI. Exogenous H2S can alleviate cardiac injury during AMI by reducing apoptosis and inflammation response in heart tissues under oxidative stress.
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Abstract
Several interventions, such as ischemic preconditioning, remote pre/perconditioning, or postconditioning, are known to decrease lethal myocardial ischemia-reperfusion injury. While several signal transduction pathways become activated by such maneuvers, they all have a common end point, namely, the mitochondria. These organelles represent an essential target of the cardioprotective strategies, and the preservation of mitochondrial function is central for the reduction of ischemia-reperfusion injury. In the present review, we address the role of mitochondria in the different conditioning strategies; in particular, we focus on alterations of mitochondrial function in terms of energy production, formation of reactive oxygen species, opening of the mitochondrial permeability transition pore, and mitochondrial dynamics induced by ischemia-reperfusion.
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Affiliation(s)
- Kerstin Boengler
- Institute of Physiology, Justus-Liebig Universität , Giessen , Germany
| | - Günter Lochnit
- Institute of Biochemistry, Justus-Liebig Universität , Giessen , Germany
| | - Rainer Schulz
- Institute of Physiology, Justus-Liebig Universität , Giessen , Germany
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Inhibition of HDAC6 Activity Alleviates Myocardial Ischemia/Reperfusion Injury in Diabetic Rats: Potential Role of Peroxiredoxin 1 Acetylation and Redox Regulation. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:9494052. [PMID: 30046381 PMCID: PMC6036837 DOI: 10.1155/2018/9494052] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 02/27/2018] [Accepted: 03/11/2018] [Indexed: 01/03/2023]
Abstract
Patients with diabetes are more vulnerable to myocardial ischemia/reperfusion (MI/R) injury, which is associated with excessive reactive oxygen species (ROS) generation and decreased antioxidant defense. Histone deacetylase 6 (HDAC6), a regulator of the antioxidant protein peroxiredoxin 1 (Prdx1), is associated with several pathological conditions in the cardiovascular system. This study investigated whether tubastatin A (TubA), a highly selective HDAC6 inhibitor, could confer a protective effect by modulating Prdx1 acetylation in a rat model of MI/R and an in vitro model of hypoxia/reoxygenation (H/R). Here, we found that diabetic hearts with excessive HDAC6 activity and decreased acetylated-Prdx1 levels were more vulnerable to MI/R injury. TubA treatment robustly improved cardiac function, reduced cardiac infarction, attenuated ROS generation, and increased acetylated-Prdx1 levels in diabetic MI/R rats. These results were further confirmed by an in vitro study using H9c2 cells. Furthermore, a study using Prdx1 acetyl-silencing mutants (K197R) showed that TubA only slightly attenuated H/R-induced cell death and ROS generation in K197R-transfected H9c2 cells exposed to high glucose (HG), but these differences were not statistically significant. Taken together, these findings suggest that HDAC6 inhibition reduces ROS generation and confers a protective effect against MI/R or H/R injury by modulating Prdx1 acetylation at K197.
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ROS Control Mitochondrial Motility through p38 and the Motor Adaptor Miro/Trak. Cell Rep 2018; 21:1667-1680. [PMID: 29117569 DOI: 10.1016/j.celrep.2017.10.060] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 09/18/2017] [Accepted: 10/15/2017] [Indexed: 01/20/2023] Open
Abstract
Mitochondrial distribution and motility are recognized as central to many cellular functions, but their regulation by signaling mechanisms remains to be elucidated. Here, we report that reactive oxygen species (ROS), either derived from an extracellular source or intracellularly generated, control mitochondrial distribution and function by dose-dependently, specifically, and reversibly decreasing mitochondrial motility in both rat hippocampal primary cultured neurons and cell lines. ROS decrease motility independently of cytoplasmic [Ca2+], mitochondrial membrane potential, or permeability transition pore opening, known effectors of oxidative stress. However, multiple lines of genetic and pharmacological evidence support that a ROS-activated mitogen-activated protein kinase (MAPK), p38α, is required for the motility inhibition. Furthermore, anchoring mitochondria directly to kinesins without involvement of the physiological adaptors between the organelles and the motor protein prevents the H2O2-induced decrease in mitochondrial motility. Thus, ROS engage p38α and the motor adaptor complex to exert changes in mitochondrial motility, which likely has both physiological and pathophysiological relevance.
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26
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Pak O, Sydykov A, Kosanovic D, Schermuly RT, Dietrich A, Schröder K, Brandes RP, Gudermann T, Sommer N, Weissmann N. Lung Ischaemia-Reperfusion Injury: The Role of Reactive Oxygen Species. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 967:195-225. [PMID: 29047088 DOI: 10.1007/978-3-319-63245-2_12] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Lung ischaemia-reperfusion injury (LIRI) occurs in many lung diseases and during surgical procedures such as lung transplantation. The re-establishment of blood flow and oxygen delivery into the previously ischaemic lung exacerbates the ischaemic injury and leads to increased microvascular permeability and pulmonary vascular resistance as well as to vigorous activation of the immune response. These events initiate the irreversible damage of the lung with subsequent oedema formation that can result in systemic hypoxaemia and multi-organ failure. Alterations in the production of reactive oxygen species (ROS) and reactive nitrogen species (RNS) have been suggested as crucial mediators of such responses during ischaemia-reperfusion in the lung. Among numerous potential sources of ROS/RNS within cells, nicotinamide adenine dinucleotide phosphate (NADPH) oxidases, xanthine oxidases, nitric oxide synthases and mitochondria have been investigated during LIRI. Against this background, we aim to review here the extensive literature about the ROS-mediated cellular signalling during LIRI, as well as the effectiveness of antioxidants as treatment option for LIRI.
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Affiliation(s)
- Oleg Pak
- Excellence Cluster Cardio-pulmonary System, University of Giessen Lung Center, German Center for Lung Research (DZL), Justus-Liebig-University Giessen, Aulweg 130, 35392, Giessen, Germany
| | - Akylbek Sydykov
- Excellence Cluster Cardio-pulmonary System, University of Giessen Lung Center, German Center for Lung Research (DZL), Justus-Liebig-University Giessen, Aulweg 130, 35392, Giessen, Germany
| | - Djuro Kosanovic
- Excellence Cluster Cardio-pulmonary System, University of Giessen Lung Center, German Center for Lung Research (DZL), Justus-Liebig-University Giessen, Aulweg 130, 35392, Giessen, Germany
| | - Ralph T Schermuly
- Excellence Cluster Cardio-pulmonary System, University of Giessen Lung Center, German Center for Lung Research (DZL), Justus-Liebig-University Giessen, Aulweg 130, 35392, Giessen, Germany
| | - Alexander Dietrich
- Walther-Straub-Institut für Pharmakologie und Toxikologie, Ludwig-Maximilians-Universität München, Goethestraße 33, 80336, Munich, Germany
| | - Katrin Schröder
- Institut für Kardiovaskuläre Physiologie, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt, Germany
| | - Ralf P Brandes
- Institut für Kardiovaskuläre Physiologie, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt, Germany
| | - Thomas Gudermann
- Walther-Straub-Institut für Pharmakologie und Toxikologie, Ludwig-Maximilians-Universität München, Goethestraße 33, 80336, Munich, Germany
| | - Natascha Sommer
- Excellence Cluster Cardio-pulmonary System, University of Giessen Lung Center, German Center for Lung Research (DZL), Justus-Liebig-University Giessen, Aulweg 130, 35392, Giessen, Germany
| | - Norbert Weissmann
- Excellence Cluster Cardio-pulmonary System, University of Giessen Lung Center, German Center for Lung Research (DZL), Justus-Liebig-University Giessen, Aulweg 130, 35392, Giessen, Germany.
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Hauerslev M, Mørk SR, Pryds K, Contractor H, Hansen J, Jespersen NR, Johnsen J, Heusch G, Kleinbongard P, Kharbanda R, Bøtker HE, Schmidt MR. Influence of long-term treatment with glyceryl trinitrate on remote ischemic conditioning. Am J Physiol Heart Circ Physiol 2018; 315:H150-H158. [PMID: 29569958 DOI: 10.1152/ajpheart.00114.2018] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Remote ischemic conditioning (RIC) protects against sustained myocardial ischemia. Because of overlapping mechanisms, this protection may be altered by glyceryl trinitrate (GTN), which is commonly used in the treatment of patients with chronic ischemic heart disease. We investigated whether long-term GTN treatment modifies the protection by RIC in the rat myocardium and human endothelium. We studied infarct size (IS) in rat hearts subjected to global ischemia-reperfusion (I/R) in vitro and endothelial function in healthy volunteers subjected to I/R of the upper arm. In addition to allocated treatment, rats were coadministered with reactive oxygen species (ROS) or nitric oxide (NO) scavengers. Rats and humans were randomized to 1) control, 2) RIC, 3) GTN, and 4) GTN + RIC. In protocols 3 and 4, rats and humans underwent long-term GTN treatment for 7 consecutive days, applied subcutaneously or 2 h daily transdermally. In rats, RIC and long-term GTN treatment reduced mean IS (18 ± 12%, P = 0.007 and 15 ± 5%, P = 0.002) compared with control (35 ± 13%). RIC and long-term GTN treatment in combination did not reduce IS (29 ± 12%, P = 0.55 vs. control). ROS and NO scavengers both attenuated IS reduction by RIC and long-term GTN treatment. In humans, I/R reduced endothelial function ( P = 0.01 vs. baseline). Separately, RIC and long-term GTN prevented the reduction in endothelial function caused by I/R; given in combination, prevention was lost. RIC and long-term GTN treatment both protect against rat myocardial and human endothelial I/R injury through ROS and NO-dependent mechanisms. However, when given in combination, RIC and long-term GTN treatment fail to confer protection. NEW & NOTEWORTHY Remote ischemic conditioning (RIC) and long-term glyceryl trinitrate (GTN) treatment protect against ischemia-reperfusion injury in both human endothelium and rat myocardium. However, combined application of RIC and long-term GTN treatment abolishes the individual protective effects of RIC and GTN treatment on ischemia-reperfusion injury, suggesting an interaction of clinical importance.
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Affiliation(s)
- Marie Hauerslev
- Department of Cardiology, Aarhus University Hospital , Aarhus , Denmark
| | - Sivagowry Rasalingam Mørk
- Department of Cardiology, Aarhus University Hospital , Aarhus , Denmark.,Department of Cardiovascular Medicine, University of Oxford , Oxford , United Kingdom
| | - Kasper Pryds
- Department of Cardiology, Aarhus University Hospital , Aarhus , Denmark.,Department of Cardiovascular Medicine, University of Oxford , Oxford , United Kingdom
| | - Hussain Contractor
- Department of Cardiovascular Medicine, University of Oxford , Oxford , United Kingdom
| | - Jan Hansen
- Department of Cardiology, Aarhus University Hospital , Aarhus , Denmark
| | | | - Jacob Johnsen
- Department of Cardiology, Aarhus University Hospital , Aarhus , Denmark
| | - Gerd Heusch
- Institute for Pathophysiology, West German Heart and Vascular Center, University School of Medicine Essen , Essen , Germany
| | - Petra Kleinbongard
- Institute for Pathophysiology, West German Heart and Vascular Center, University School of Medicine Essen , Essen , Germany
| | - Rajesh Kharbanda
- Department of Cardiovascular Medicine, University of Oxford , Oxford , United Kingdom
| | - Hans Erik Bøtker
- Department of Cardiology, Aarhus University Hospital , Aarhus , Denmark
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Najafi M, Noroozi E, Javadi A, Badalzadeh R. Anti-arrhythmogenic and anti-inflammatory effects of troxerutin in ischemia/reperfusion injury of diabetic myocardium. Biomed Pharmacother 2018; 102:385-391. [PMID: 29573617 DOI: 10.1016/j.biopha.2018.03.047] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 03/09/2018] [Accepted: 03/09/2018] [Indexed: 01/06/2023] Open
Abstract
INTRODUCTION Medicinal plants are increasingly used in the treatment of cardiovascular diseases due to their multifaceted properties. This study was designed to investigate anti-arrhythmic and anti-inflammatory potentials of the natural bioflavonoid, troxerutin (TXR) in myocardial ischemia/reperfusion (I/R) injury in diabetic rats. METHODS Male Wistar rats were randomly divided into 4 groups (control, control + TXR [150 mg/kg, daily], diabetic, and diabetic + TXR). Type-1 diabetes was induced by an intraperitoneal injection of streptozotocin (50 mg/kg) and lasted for 10 weeks. After mounting on the Langendorff apparatus, isolated hearts in all groups received a normal Krebs-Henseleit solution for 20 min of stabilization period, followed by 30 min of regional ischemia through ligation of the left anterior descending coronary artery, and 60 min of full reperfusion. During the experiment, the electrocardiograms were recorded and the arrhythmias [number, duration and incidence of premature ventricular complexes (PVC), ventricular tachycardia (VT), ventricular fibrillation (VF), and arrhythmia score] during I/R phases were assessed based on the Lambeth Convention. Ischemic left ventricular samples were used to determine the activities of lactate dehydrogenase (LDH), interleukin-1beta (IL-1β), and tumor necrosis factor (TNF-α). RESULTS The arrhythmias induced by I/R were not significantly changed in diabetic group as compared to the control group. However, pretreatment with TXR significantly reduced the number of PVC and duration and incidence of VF in ischemic phase in comparison to the untreated animals (P < 0.05). In addition, the duration, and incidence of most arrhythmias during reperfusion phase were significantly declined by TXR administration in both control and diabetic groups (P < 0.05). Pretreatment of rats with TXR significantly reduced myocardial inflammatory cytokines TNF-α and IL-1β levels after I/R insult in diabetic as well as control hearts (P < 0.05). CONCLUSION Preconditioning with TXR could provide cardioprotection by anti-arrhythmic and anti-inflammatory effects against I/R injury in rat hearts. This effect of TXR can introduce this material as a protective agent in cardiovascular diseases.
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Affiliation(s)
- Moslem Najafi
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Pharmacology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Elham Noroozi
- Department of Pharmacology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Aniseh Javadi
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran; Biomedicine Institute, Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Reza Badalzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Biomedicine Institute, Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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Cadenas S. ROS and redox signaling in myocardial ischemia-reperfusion injury and cardioprotection. Free Radic Biol Med 2018; 117:76-89. [PMID: 29373843 DOI: 10.1016/j.freeradbiomed.2018.01.024] [Citation(s) in RCA: 511] [Impact Index Per Article: 85.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 01/19/2018] [Accepted: 01/21/2018] [Indexed: 02/06/2023]
Abstract
Ischemia-reperfusion (IR) injury is central to the pathology of major cardiovascular diseases, such as stroke and myocardial infarction. IR injury is mediated by several factors including the elevated production of reactive oxygen species (ROS), which occurs particularly at reperfusion. The mitochondrial respiratory chain and NADPH oxidases of the NOX family are major sources of ROS in cardiomyocytes. The first part of this review discusses recent findings and controversies on the mechanisms of superoxide production by the mitochondrial electron transport chain during IR injury, as well as the contribution of the NOX isoforms expressed in cardiomyocytes, NOX1, NOX2 and NOX4, to this damage. It then focuses on the effects of ROS on the opening of the mitochondrial permeability transition pore (mPTP), an inner membrane non-selective pore that causes irreversible damage to the heart. The second part analyzes the redox mechanisms of cardiomyocyte mitochondrial protection; specifically, the activation of the hypoxia-inducible factor (HIF) pathway and the antioxidant transcription factor Nrf2, which are both regulated by the cellular redox state. Redox mechanisms involved in ischemic preconditioning, one of the most effective ways of protecting the heart against IR injury, are also reviewed. Interestingly, several of these protective pathways converge on the inhibition of mPTP opening during reperfusion. Finally, the clinical and translational implications of these cardioprotective mechanisms are discussed.
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Affiliation(s)
- Susana Cadenas
- Centro de Biología Molecular "Severo Ochoa" (CSIC-UAM) and Departamento de Biología Molecular, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain; Instituto de Investigación Sanitaria Princesa (IIS-IP), 28006 Madrid, Spain.
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30
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Pócs L, Janovszky Á, Garab D, Terhes G, Ocsovszki I, Kaszaki J, Boros M, Piffkó J, Szabó A. Estrogen-dependent efficacy of limb ischemic preconditioning in female rats. J Orthop Res 2018; 36:97-105. [PMID: 28561381 DOI: 10.1002/jor.23621] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 05/19/2017] [Indexed: 02/04/2023]
Abstract
Our aim was to examine the effects of ischemic preconditioning (IPC) on the local periosteal and systemic inflammatory consequences of hindlimb ischemia-reperfusion (IR) in Sprague-Dawley rats with chronic estrogen deficiency (13 weeks after ovariectomy, OVX) in the presence and absence of chronic 17beta-estradiol supplementation (E2, 20 µg kg-1 , 5 days/week for 5 weeks); sham-operated (non-OVX) animals served as controls. As assessed by intravital fluorescence microscopy, rolling and the firm adhesion of polymorphonuclear neutrophil leukocytes (PMNs) gave similar results in the Sham + IR and OVX + IR groups in the tibial periosteal microcirculation during the 3-h reperfusion period after a 60-min tourniquet ischemia. Postischemic increases in periosteal PMN adhesion and PMN-derived adhesion molecule CD11b expressions, however, were significantly reduced by IPC (two cycles of 10'/10') in Sham animals, but not in OVX animals; neither plasma free radical levels (as measured by chemiluminescence), nor TNF-alpha release was affected by IPC. E2 supplementation in OVX animals restored the IPC-related microcirculatory integrity and PMN-derived CD11b levels, and TNF-alpha and free radical levels were reduced by IPC only with E2. An enhanced estrogen receptor beta expression could also be demonstrated after E2 in the periosteum. Overall, the beneficial periosteal microcirculatory effects of limb IPC are lost in chronic estrogen deficiency, but they can be restored by E2 supplementation. This suggests that the presence of endogenous estrogen is a necessary facilitating factor of the anti-inflammatory protection provided by limb IPC in females. The IPC-independent effects of E2 on inflammatory reactions should also be taken into account in this model. © 2017 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:97-105, 2018.
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Affiliation(s)
- Levente Pócs
- Department of Traumatology and Hand Surgery, Bács-Kiskun County Teaching Hospital, Kecskemét, Hungary
| | - Ágnes Janovszky
- Department of Oral and Maxillofacial Surgery, University of Szeged, Szeged, Hungary
| | - Dénes Garab
- Institute of Surgical Research, University of Szeged, Szeged, Hungary
| | - Gabriella Terhes
- Institute of Clinical Microbiology, University of Szeged, Szeged, Hungary
| | - Imre Ocsovszki
- Department of Biochemistry, University of Szeged, Szeged, Hungary
| | - József Kaszaki
- Institute of Surgical Research, University of Szeged, Szeged, Hungary
| | - Mihály Boros
- Institute of Surgical Research, University of Szeged, Szeged, Hungary
| | - József Piffkó
- Department of Oral and Maxillofacial Surgery, University of Szeged, Szeged, Hungary
| | - Andrea Szabó
- Institute of Surgical Research, University of Szeged, Szeged, Hungary
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Morihara H, Obana M, Tanaka S, Kawakatsu I, Tsuchiyama D, Mori S, Suizu H, Ishida A, Kimura R, Tsuchimochi I, Maeda M, Yoshimitsu T, Fujio Y, Nakayama H. 2-aminoethoxydiphenyl borate provides an anti-oxidative effect and mediates cardioprotection during ischemia reperfusion in mice. PLoS One 2017; 12:e0189948. [PMID: 29267336 PMCID: PMC5739451 DOI: 10.1371/journal.pone.0189948] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 12/05/2017] [Indexed: 01/12/2023] Open
Abstract
Excessive levels of reactive oxygen species (ROS) and impaired Ca2+ homeostasis play central roles in the development of multiple cardiac pathologies, including cell death during ischemia-reperfusion (I/R) injury. In several organs, treatment with 2-aminoethoxydiphenyl borate (2-APB) was shown to have protective effects, generally believed to be due to Ca2+ channel inhibition. However, the mechanism of 2-APB-induced cardioprotection has not been fully investigated. Herein we investigated the protective effects of 2-APB treatment against cardiac pathogenesis and deciphered the underlying mechanisms. In neonatal rat cardiomyocytes, treatment with 2-APB was shown to prevent hydrogen peroxide (H2O2) -induced cell death by inhibiting the increase in intracellular Ca2+ levels. However, no 2-APB-sensitive channel blocker inhibited H2O2-induced cell death and a direct reaction between 2-APB and H2O2 was detected by 1H-NMR, suggesting that 2-APB chemically scavenges extracellular ROS and provides cytoprotection. In a mouse I/R model, treatment with 2-APB led to a considerable reduction in the infarct size after I/R, which was accompanied by the reduction in ROS levels and neutrophil infiltration, indicating that the anti-oxidative properties of 2-APB plays an important role in the prevention of I/R injury in vivo as well. Taken together, present results indicate that 2-APB treatment induces cardioprotection and prevents ROS-induced cardiomyocyte death, at least partially, by the direct scavenging of extracellular ROS. Therefore, administration of 2-APB may represent a promising therapeutic strategy for the treatment of ROS-related cardiac pathology including I/R injury.
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Affiliation(s)
- Hirofumi Morihara
- Laboratory of Clinical Science and Biomedicine, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan
| | - Masanori Obana
- Laboratory of Clinical Science and Biomedicine, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan
| | - Shota Tanaka
- Laboratory of Clinical Science and Biomedicine, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan
| | - Ikki Kawakatsu
- Laboratory of Clinical Science and Biomedicine, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan
| | - Daisuke Tsuchiyama
- Laboratory of Clinical Science and Biomedicine, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan
| | - Shota Mori
- Laboratory of Clinical Science and Biomedicine, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan
| | - Hiroshi Suizu
- Laboratory of Synthetic Medicinal Chemistry, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan
| | - Akiko Ishida
- Laboratory of Clinical Science and Biomedicine, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan
| | - Rumi Kimura
- Laboratory of Clinical Science and Biomedicine, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan
| | - Izuru Tsuchimochi
- Laboratory of Synthetic Medicinal Chemistry, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan
| | - Makiko Maeda
- Educational and Research Unit of Pharm.D. Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan
| | - Takehiko Yoshimitsu
- Laboratory of Synthetic Organic and Medicinal Chemistry, Division of Pharmaceutical Sciences, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Yasushi Fujio
- Laboratory of Clinical Science and Biomedicine, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan
| | - Hiroyuki Nakayama
- Laboratory of Clinical Science and Biomedicine, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan
- * E-mail:
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Sánchez-Ramos C, Prieto I, Tierrez A, Laso J, Valdecantos MP, Bartrons R, Roselló-Catafau J, Monsalve M. PGC-1α Downregulation in Steatotic Liver Enhances Ischemia-Reperfusion Injury and Impairs Ischemic Preconditioning. Antioxid Redox Signal 2017; 27:1332-1346. [PMID: 28269997 DOI: 10.1089/ars.2016.6836] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
AIMS Liver steatosis is associated with mitochondrial dysfunction and elevated reactive oxygen species (ROS) levels together with enhanced sensitivity to ischemia-reperfusion (IR) injury and limited response to preconditioning protocols. Here, we sought to determine whether the downregulation in the steatotic liver of peroxisome proliferator-activated receptor γ co-activator 1α (PGC-1α), a master regulator of mitochondrial metabolism and ROS that is known to play a role in liver metabolic control, could be responsible for the sensitivity of the steatotic liver to ischemic damage. RESULTS PGC-1α was induced in normal liver after exposure to an IR protocol, which was concomitant with an increase in the levels of antioxidant proteins. By contrast, its induction was severely blunted in the steatotic liver, resulting in a modest induction of antioxidant proteins. Livers of PGC-1α-/- mice on a chow diet were normal, but they exhibited an enhanced sensitivity to IR injury and also a lack of response to ischemic preconditioning (IPC), a phenotype that recapitulated the features of the steatotic liver in terms of liver damage, although the inflammatory response differed between both models. Utilizing an in vitro model of IPC, we found that PGC-1α expression was downregulated in hepatic cells cultured at 1% O2; whereas it was induced after reoxygenation (3% O2), and it was responsible for the recovery of antioxidant gene expression after the ischemic period. Innovation & Conclusion: PGC-1α plays an important role in the protection against IR injury in the liver, which is likely associated with its capacity to induce antioxidant gene expression. Antioxid. Redox Signal. 27, 1332-1346.
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Affiliation(s)
| | - Ignacio Prieto
- 1 Instituto de Investigaciones Biomédicas "Alberto Sols" (CSIC-UAM) , Madrid, Spain
| | - Alberto Tierrez
- 2 Fundación Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC) , Madrid, Spain
| | - Javier Laso
- 2 Fundación Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC) , Madrid, Spain
| | - M Pilar Valdecantos
- 3 Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERdem) , ISCIII, Madrid, Spain
| | - Ramon Bartrons
- 4 Unitat de Bioquímica i Biologia Molecular, Departament de Ciències Fisiològiques, Campus de Bellvitge, IDIBELL-Universitat de Barcelona , Hospitalet, Spain
| | - Joan Roselló-Catafau
- 5 Experimental Hepatic Ischemia-Reperfusion Unit, Institut d'Investigacions Biomèdiques de Barcelona (CSIC) , Barcelona, Spain
| | - María Monsalve
- 1 Instituto de Investigaciones Biomédicas "Alberto Sols" (CSIC-UAM) , Madrid, Spain
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Stowe DF, Yang M, Heisner JS, Camara AK. Endogenous and Agonist-induced Opening of Mitochondrial Big Versus Small Ca2+-sensitive K+ Channels on Cardiac Cell and Mitochondrial Protection. J Cardiovasc Pharmacol 2017; 70:314-328. [PMID: 28777255 PMCID: PMC5726766 DOI: 10.1097/fjc.0000000000000524] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Both big (BKCa) and small (SKCa) conductance Ca-sensitive K channels are present in mammalian cardiac cell mitochondria (m). We used pharmacological agonists and antagonists of BKCa and SKCa channels to examine the importance of endogenous opening of these channels and the relative contribution of either or both of these channels to protect against contractile dysfunction and reduce infarct size after ischemia reperfusion (IR) injury through a mitochondrial protective mechanism. After global cardiac IR injury of ex vivo perfused Guinea pig hearts, we found the following: both agonists NS1619 (for BKCa) and DCEB (for SKCa) improved contractility; BKCa antagonist paxilline (PAX) alone or with SKCa antagonist NS8593 worsened contractility and enhanced infarct size; both antagonists PAX and NS8593 obliterated protection by their respective agonists; BKCa and SKCa antagonists did not block protection afforded by SKCa and BKCa agonists, respectively; and all protective effects by the agonists were blocked by scavenging superoxide anions (O2) with Mn(III) tetrakis (4-benzoic acid) porphyrin (TBAP). Contractile function was inversely associated with global infarct size. In in vivo rats, infusion of NS8593, PAX, or both antagonists enhanced regional infarct size while infusion of either NS1619 or DCEB reduced infarct size. In cardiac mitochondria isolated from ex vivo hearts after IR, combined SKCa and BKCa agonists improved respiratory control index and Ca retention capacity compared with IR alone, whereas the combined antagonists did not alter respiratory control index but worsened Ca retention capacity. Although the differential protective bioenergetics effects of endogenous or exogenous BKCa and SKCa channel opening remain unclear, each channel likely responds to different sensing Ca concentrations and voltage gradients over time during oxidative stress-induced injury to individually or together protect cardiac mitochondria and myocytes.
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Affiliation(s)
- David F. Stowe
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, WI, USA
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, USA
- Department of Biomedical Engineering, Marquette University and Medical College of Wisconsin, Milwaukee, WI, USA
- Cardiovascular Center, The Medical College of Wisconsin, Milwaukee, WI, USA
- Research Service, Zablocki VA Medical Center, Milwaukee, WI, USA
| | - Meiying Yang
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - James S. Heisner
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Amadou K.S. Camara
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, WI, USA
- Cardiovascular Center, The Medical College of Wisconsin, Milwaukee, WI, USA
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Xu MJ, Cai Y, Qu A, Shyy JYJ, Li W, Wang X. Immediate Early Response Gene X-1 (IEX-1) Mediates Ischemic Preconditioning-Induced Cardioprotection in Rats. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:6109061. [PMID: 29213350 PMCID: PMC5682079 DOI: 10.1155/2017/6109061] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 08/24/2017] [Indexed: 11/18/2022]
Abstract
Reversible myocardial ischemia/reperfusion (I/R) or ischemic preconditioning (IPC) is associated with an immediate genomic response; IPC-induced immediate early genes are associated with reduced infarct size. Because the immediate early response gene X-1 (IEX-1) plays a central role in cell apoptosis, we examine whether IEX-1 exerts protective effects against I/R injury. We found that the IEX-1 mRNA level was increased in the IPC-imposed rat heart. However, it was downregulated in the I/R rat heart, which was prevented by in situ IPC. When IEX-1 was knocked down, the protective effects imposed by IPC were lessened. Local gene delivery of Ad-IEX-1 to the left ventricle greatly diminished cardiac infarct size and improved systolic functions of I/R hearts in rats. In contrast, knocking down IEX-1 expression exacerbates myocardial infarction. Overexpression of IEX-1 in neonatal rat cardiomyocytes significantly reduced hypoxia-reoxygenation-induced intracellular and mitochondrial ROS accumulation and cell apoptosis. Furthermore, IPC-induced phosphorylation and particle translocation of PKCε were impaired by knocking down IEX-1 in vivo, and overexpressing IEX-1 showed similar cardioprotection imposed by IPC. Our results demonstrate that IPC increases IEX-1 expression, which may promote phosphorylation and particle translocation of PKCε and thus reduce intracellular ROS accumulation. These beneficial effects reduce cardiomyocyte apoptosis and necrosis to alleviate cardiac infarction.
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Affiliation(s)
- Ming-Jiang Xu
- Department of Physiology and Pathophysiology, School of Basic Medical Science, Peking University Health Science Center, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
- Basic Medical School, Wuhan University, Wuhan, China
| | - Yan Cai
- Department of Physiology and Pathophysiology, School of Basic Medical Science, Peking University Health Science Center, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Aijuan Qu
- Department of Physiology and Pathophysiology, School of Basic Medical Science, Capital Medical University, Key Laboratory of Remodeling-Related Cardiovascular Diseases, Ministry of Education, Beijing, China
| | - John Y.-J. Shyy
- Department of Medicine, University of California, San Diego, San Diego, CA 92093, USA
| | - Wenjing Li
- Department of Physiology and Pathophysiology, School of Basic Medical Science, Peking University Health Science Center, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Xian Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Science, Peking University Health Science Center, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
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35
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Xu YP, Han F, Tan J. Edaravone protects the retina against ischemia/reperfusion-induced oxidative injury through the PI3K/Akt/Nrf2 pathway. Mol Med Rep 2017; 16:9210-9216. [DOI: 10.3892/mmr.2017.7739] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 05/15/2017] [Indexed: 11/06/2022] Open
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Andrienko TN, Pasdois P, Pereira GC, Ovens MJ, Halestrap AP. The role of succinate and ROS in reperfusion injury - A critical appraisal. J Mol Cell Cardiol 2017; 110:1-14. [PMID: 28689004 PMCID: PMC5678286 DOI: 10.1016/j.yjmcc.2017.06.016] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 06/14/2017] [Accepted: 06/30/2017] [Indexed: 12/20/2022]
Abstract
We critically assess the proposal that succinate-fuelled reverse electron flow (REF) drives mitochondrial matrix superoxide production from Complex I early in reperfusion, thus acting as a key mediator of ischemia/reperfusion (IR) injury. Real-time surface fluorescence measurements of NAD(P)H and flavoprotein redox state suggest that conditions are unfavourable for REF during early reperfusion. Furthermore, rapid loss of succinate accumulated during ischemia can be explained by its efflux rather than oxidation. Moreover, succinate accumulation during ischemia is not attenuated by ischemic preconditioning (IP) despite powerful cardioprotection. In addition, measurement of intracellular reactive oxygen species (ROS) during reperfusion using surface fluorescence and mitochondrial aconitase activity detected major increases in ROS only after mitochondrial permeability transition pore (mPTP) opening was first detected. We conclude that mPTP opening is probably triggered initially by factors other than ROS, including increased mitochondrial [Ca2+]. However, IP only attenuates [Ca2+] increases later in reperfusion, again after initial mPTP opening, implying that IP regulates mPTP opening through additional mechanisms. One such is mitochondria-bound hexokinase 2 (HK2) which dissociates from mitochondria during ischemia in control hearts but not those subject to IP. Indeed, there is a strong correlation between the extent of HK2 loss from mitochondria during ischemia and infarct size on subsequent reperfusion. Mechanisms linking HK2 dissociation to mPTP sensitisation remain to be fully established but several related processes have been implicated including VDAC1 oligomerisation, the stability of contact sites between the inner and outer membranes, cristae morphology, Bcl-2 family members and mitochondrial fission proteins such as Drp1.
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Affiliation(s)
- Tatyana N Andrienko
- School of Biochemistry and The Bristol Heart Institute, Medical Sciences Building, University of Bristol, Bristol BS8 1TD, UK
| | - Philippe Pasdois
- School of Biochemistry and The Bristol Heart Institute, Medical Sciences Building, University of Bristol, Bristol BS8 1TD, UK
| | - Gonçalo C Pereira
- School of Biochemistry and The Bristol Heart Institute, Medical Sciences Building, University of Bristol, Bristol BS8 1TD, UK
| | - Matthew J Ovens
- School of Biochemistry and The Bristol Heart Institute, Medical Sciences Building, University of Bristol, Bristol BS8 1TD, UK
| | - Andrew P Halestrap
- School of Biochemistry and The Bristol Heart Institute, Medical Sciences Building, University of Bristol, Bristol BS8 1TD, UK.
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37
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Yang M, Camara AKS, Aldakkak M, Kwok WM, Stowe DF. Identity and function of a cardiac mitochondrial small conductance Ca 2+-activated K + channel splice variant. BIOCHIMICA ET BIOPHYSICA ACTA. BIOENERGETICS 2017; 1858:442-458. [PMID: 28342809 PMCID: PMC5749404 DOI: 10.1016/j.bbabio.2017.03.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 02/28/2017] [Accepted: 03/21/2017] [Indexed: 01/07/2023]
Abstract
We provide evidence for location and function of a small conductance, Ca2+-activated K+ (SKCa) channel isoform 3 (SK3) in mitochondria (m) of guinea pig, rat and human ventricular myocytes. SKCa agonists protected isolated hearts and mitochondria against ischemia/reperfusion (IR) injury; SKCa antagonists worsened IR injury. Intravenous infusion of a SKCa channel agonist/antagonist, respectively, in intact rats was effective in reducing/enhancing regional infarct size induced by coronary artery occlusion. Localization of SK3 in mitochondria was evidenced by Western blot of inner mitochondrial membrane, immunocytochemical staining of cardiomyocytes, and immunogold labeling of isolated mitochondria. We identified a SK3 splice variant in guinea pig (SK3.1, aka SK3a) and human ventricular cells (SK3.2) by amplifying mRNA, and show mitochondrial expression in mouse atrial tumor cells (HL-1) by transfection with full length and truncated SK3.1 protein. We found that the N-terminus is not required for mitochondrial trafficking but the C-terminus beyond the Ca2+ calmodulin binding domain is required for Ca2+ sensing to induce mK+ influx and/or promote mitochondrial localization. In isolated guinea pig mitochondria and in SK3 overexpressed HL-1 cells, mK+ influx was driven by adding CaCl2. Moreover, there was a greater fall in membrane potential (ΔΨm), and enhanced cell death with simulated cell injury after silencing SK3.1 with siRNA. Although SKCa channel opening protects the heart and mitochondria against IR injury, the mechanism for favorable bioenergetics effects resulting from SKCa channel opening remains unclear. SKCa channels could play an essential role in restraining cardiac mitochondria from inducing oxidative stress-induced injury resulting from mCa2+ overload.
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Affiliation(s)
- MeiYing Yang
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Amadou K S Camara
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, WI, USA; Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Mohammed Aldakkak
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Wai-Meng Kwok
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, WI, USA; Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, WI, USA; Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, USA
| | - David F Stowe
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, WI, USA; Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, USA; Department of Biomedical Engineering, Medical College of Wisconsin and Marquette University, Milwaukee, WI, USA; Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, USA; Research Service, Zablocki VA Medical Center, Milwaukee, WI, USA.
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38
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Non-linear actions of physiological agents: Finite disarrangements elicit fitness benefits. Redox Biol 2017; 13:235-243. [PMID: 28595161 PMCID: PMC5460745 DOI: 10.1016/j.redox.2017.05.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 05/11/2017] [Indexed: 12/16/2022] Open
Abstract
Finite disarrangements of important (vital) physiological agents and nutrients can induce plethora of beneficial effects, exceeding mere attenuation of the specific stress. Such response to disrupted homeostasis appears to be universally conserved among species. The underlying mechanism of improved fitness and longevity, when physiological agents act outside their normal range is similar to hormesis, a phenomenon whereby toxins elicit beneficial effects at low doses. Due to similarity with such non-linear response to toxins described with J-shaped curve, we have coined a new term “mirror J-shaped curves” for non-linear response to finite disarrangement of physiological agents. Examples from the clinical trials and basic research are provided, along with the unifying mechanisms that tie classical non-linear response to toxins with the non-linear response to physiological agents (glucose, oxygen, osmolarity, thermal energy, calcium, body mass, calorie intake and exercise). Reactive oxygen species and cytosolic calcium seem to be common triggers of signaling pathways that result in these beneficial effects. Awareness of such phenomena and exploring underlying mechanisms can help physicians in their everyday practice. It can also benefit researchers when designing studies and interpreting growing number of scientific data showing non-linear responses to physiological agents.
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39
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Jespersen NR, Yokota T, Støttrup NB, Bergdahl A, Paelestik KB, Povlsen JA, Dela F, Bøtker HE. Pre-ischaemic mitochondrial substrate constraint by inhibition of malate-aspartate shuttle preserves mitochondrial function after ischaemia-reperfusion. J Physiol 2017; 595:3765-3780. [PMID: 28093764 DOI: 10.1113/jp273408] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Accepted: 01/12/2017] [Indexed: 01/26/2023] Open
Abstract
KEY POINTS Pre-ischaemic administration of aminooxiacetate (AOA), an inhibitor of the malate-aspartate shuttle (MAS), provides cardioprotection against ischaemia-reperfusion injury. The underlying mechanism remains unknown. We examined whether transient inhibition of the MAS during ischaemia and early reperfusion by AOA treatment could prevent mitochondrial damage at later reperfusion. The AOA treatment preserved mitochondrial respiratory capacity with reduced mitochondrial oxidative stress during late reperfusion to the same extent as ischaemic preconditioning (IPC). However, AOA treatment, but not IPC, reduced the myocardial interstitial concentration of tricarboxylic acid cycle intermediates at the onset of reperfusion. The results obtained in the present study demonstrate that metabolic regulation by inhibition of the MAS at the onset of reperfusion may be beneficial for the preservation of mitochondrial function during late reperfusion in an IR-injured heart. ABSTRACT Mitochondrial dysfunction plays a central role in ischaemia-reperfusion (IR) injury. Pre-ischaemic administration of aminooxyacetate (AOA), an inhibitor of the malate-aspartate shuttle (MAS), provides cardioprotection against IR injury, although the underlying mechanism remains unknown. We hypothesized that a transient inhibition of the MAS during ischaemia and early reperfusion could preserve mitochondrial function at later phase of reperfusion in the IR-injured heart to the same extent as ischaemic preconditioning (IPC), which is a well-validated cardioprotective strategy against IR injury. In the present study, we show that pre-ischaemic administration of AOA preserved mitochondrial complex I-linked state 3 respiration and fatty acid oxidation during late reperfusion in IR-injured isolated rat hearts. AOA treatment also attenuated the excessive emission of mitochondrial reactive oxygen species during state 3 with complex I-linked substrates during late reperfusion, which was consistent with reduced oxidative damage in the IR-injured heart. As a result, AOA treatment reduced infarct size after reperfusion. These protective effects of MAS inhibition on the mitochondria were similar to those of IPC. Intriguingly, the protection of mitochondrial function by AOA treatment appears to be different from that of IPC because AOA treatment, but not IPC, downregulated myocardial tricarboxilic acid (TCA)-cycle intermediates at the onset of reperfusion. MAS inhibition thus preserved mitochondrial respiratory capacity and decreased mitochondrial oxidative stress during late reperfusion in the IR-injured heart, at least in part, via metabolic regulation of TCA cycle intermediates in the mitochondria at the onset of reperfusion.
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Affiliation(s)
| | - Takashi Yokota
- Xlab, Center for Healthy Aging, Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | | | - Andreas Bergdahl
- Department of Exercise Science, Concordia University, Montreal, Canada
| | | | | | - Flemming Dela
- Xlab, Center for Healthy Aging, Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark.,Department of Geriatrics, Bispebjerg University Hospital, Copenhagen, Denmark
| | - Hans Erik Bøtker
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
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40
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Beharry KD, Cai CL, Valencia GB, Valencia AM, Lazzaro DR, Bany-Mohammed F, Aranda JV. Neonatal Intermittent Hypoxia, Reactive Oxygen Species, and Oxygen-Induced Retinopathy. REACTIVE OXYGEN SPECIES (APEX, N.C.) 2017; 3:12-25. [PMID: 29951586 DOI: 10.20455/ros.2017.805] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Most of the major morbidities in the preterm newborn are caused by or are associated with oxygen-induced injuries and are aptly called "oxygen radical diseases in neonatology or ORDIN". These include bronchopulmonary dysplasia, retinopathy of prematurity, periventricular leukomalacia, intraventricular hemorrhage, necrotizing enterocolitis and others. Relative hyperoxia immediately after birth, immature antioxidant systems, biomolecular events favoring oxidative stress such as iron availability and the role of hydrogen peroxide as a key molecular mediator of these events are reviewed. Potential therapeutic strategies such as caffeine, antioxidants, non-steroidal anti-inflammatory drugs, and others targeted to these critical sites may help prevent oxidative radical diseases in the newborn resulting in improved neonatal outcomes.
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Affiliation(s)
- Kay D Beharry
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, State University of New York, Downstate Medical Center, Brooklyn, NY 11203, USA.,Department of Ophthalmology, State University of New York, Downstate Medical Center, Brooklyn, NY 11203, USA.,State University of New York Eye Institute, New York, NY 10075, USA
| | - Charles L Cai
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, State University of New York, Downstate Medical Center, Brooklyn, NY 11203, USA
| | - Gloria B Valencia
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, State University of New York, Downstate Medical Center, Brooklyn, NY 11203, USA
| | - Arwin M Valencia
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, Summerlin Hospital Medical Center, Valley Healthcare System, Las Vegas, NV 89135, USA
| | - Douglas R Lazzaro
- Department of Ophthalmology, State University of New York, Downstate Medical Center, Brooklyn, NY 11203, USA.,State University of New York Eye Institute, New York, NY 10075, USA
| | - Fayez Bany-Mohammed
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, University of California, Irvine, CA 92868, USA
| | - Jacob V Aranda
- Department of Pediatrics, Division of Neonatal-Perinatal Medicine, State University of New York, Downstate Medical Center, Brooklyn, NY 11203, USA.,Department of Ophthalmology, State University of New York, Downstate Medical Center, Brooklyn, NY 11203, USA.,State University of New York Eye Institute, New York, NY 10075, USA
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41
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Baumeister P, Quinn TA. Altered Calcium Handling and Ventricular Arrhythmias in Acute Ischemia. CLINICAL MEDICINE INSIGHTS-CARDIOLOGY 2016; 10:61-69. [PMID: 28008297 PMCID: PMC5158122 DOI: 10.4137/cmc.s39706] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 10/27/2016] [Accepted: 11/20/2016] [Indexed: 12/14/2022]
Abstract
Acute ischemia results in deadly cardiac arrhythmias that are a major contributor to sudden cardiac death (SCD). The electrophysiological changes involved have been extensively studied, yet the mechanisms of ventricular arrhythmias during acute ischemia remain unclear. What is known is that during acute ischemia both focal (ectopic excitation) and nonfocal (reentry) arrhythmias occur, due to an interaction of altered electrical, mechanical, and biochemical properties of the myocardium. There is particular interest in the role that alterations in intracellular calcium handling, which cause changes in intracellular calcium concentration and to the calcium transient, play in ischemia-induced arrhythmias. In this review, we briefly summarize the known contributors to ventricular arrhythmias during acute ischemia, followed by an in-depth examination of the potential contribution of altered intracellular calcium handling, which may include novel targets for antiarrhythmic therapy.
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Affiliation(s)
- Peter Baumeister
- Department of Physiology and Biophysics, Dalhousie University, Halifax, Canada
| | - T Alexander Quinn
- Department of Physiology and Biophysics, Dalhousie University, Halifax, Canada
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42
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Bazil JN, Beard DA, Vinnakota KC. Catalytic Coupling of Oxidative Phosphorylation, ATP Demand, and Reactive Oxygen Species Generation. Biophys J 2016; 110:962-71. [PMID: 26910433 DOI: 10.1016/j.bpj.2015.09.036] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 09/03/2015] [Accepted: 09/25/2015] [Indexed: 01/13/2023] Open
Abstract
Competing models of mitochondrial energy metabolism in the heart are highly disputed. In addition, the mechanisms of reactive oxygen species (ROS) production and scavenging are not well understood. To deepen our understanding of these processes, a computer model was developed to integrate the biophysical processes of oxidative phosphorylation and ROS generation. The model was calibrated with experimental data obtained from isolated rat heart mitochondria subjected to physiological conditions and workloads. Model simulations show that changes in the quinone pool redox state are responsible for the apparent inorganic phosphate activation of complex III. Model simulations predict that complex III is responsible for more ROS production during physiological working conditions relative to complex I. However, this relationship is reversed under pathological conditions. Finally, model analysis reveals how a highly reduced quinone pool caused by elevated levels of succinate is likely responsible for the burst of ROS seen during reperfusion after ischemia.
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Affiliation(s)
- Jason N Bazil
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan
| | - Daniel A Beard
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan.
| | - Kalyan C Vinnakota
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan
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43
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Andrienko T, Pasdois P, Rossbach A, Halestrap AP. Real-Time Fluorescence Measurements of ROS and [Ca2+] in Ischemic / Reperfused Rat Hearts: Detectable Increases Occur only after Mitochondrial Pore Opening and Are Attenuated by Ischemic Preconditioning. PLoS One 2016; 11:e0167300. [PMID: 27907091 PMCID: PMC5131916 DOI: 10.1371/journal.pone.0167300] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 11/12/2016] [Indexed: 12/17/2022] Open
Abstract
Mitochondrial permeability transition pore (mPTP) opening is critical for ischemia / reperfusion (I/R) injury and is associated with increased [Ca2+] and reactive oxygen species (ROS). Here we employ surface fluorescence to establish the temporal sequence of these events in beating perfused hearts subject to global I/R. A bespoke fluorimeter was used to synchronously monitor surface fluorescence and reflectance of Langendorff-perfused rat hearts at multiple wavelengths, with simultaneous measurements of hemodynamic function. Potential interference by motion artefacts and internal filtering was assessed and minimised. Re-oxidation of NAD(P)H and flavoproteins on reperfusion (detected using autofluorescence) was rapid (t0.5 < 15 s) and significantly slower following ischemic preconditioning (IP). This argues against superoxide production from reduced Complex 1 being a critical mediator of initial mPTP opening during early reperfusion. Furthermore, MitoPY1 (a mitochondria-targeted H2O2-sensitive fluorescent probe) and aconitase activity measurements failed to detect matrix ROS increases during early reperfusion. However, two different fluorescent cytosolic ROS probes did detect ROS increases after 2–3 min of reperfusion, which was shown to be after initiation of mPTP opening. Cyclosporin A (CsA) and IP attenuated these responses and reduced infarct size. [Ca2+]i (monitored with Indo-1) increased progressively during ischemia, but dropped rapidly within 90 s of reperfusion when total mitochondrial [Ca2+] was shown to be increased. These early changes in [Ca2+] were not attenuated by IP, but substantial [Ca2+] increases were observed after 2–3 min reperfusion and these were prevented by both IP and CsA. Our data suggest that the major increases in ROS and [Ca2+] detected later in reperfusion are secondary to mPTP opening. If earlier IP-sensitive changes occur that might trigger initial mPTP opening they are below our limit of detection. Rather, we suggest that IP may inhibit initial mPTP opening by alternative mechanisms such as prevention of hexokinase 2 dissociation from mitochondria during ischemia.
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Affiliation(s)
- Tatyana Andrienko
- School of Biochemistry and Bristol Cardiovascular, Biomedical Sciences Building, University of Bristol, Bristol, United Kingdom
| | - Philippe Pasdois
- School of Biochemistry and Bristol Cardiovascular, Biomedical Sciences Building, University of Bristol, Bristol, United Kingdom
- INSERM U1045—L'Institut de Rythmologie et Modélisation Cardiaque (LIRYC), Université de Bordeaux, Bordeaux, France
| | - Andreas Rossbach
- School of Biochemistry and Bristol Cardiovascular, Biomedical Sciences Building, University of Bristol, Bristol, United Kingdom
| | - Andrew P Halestrap
- School of Biochemistry and Bristol Cardiovascular, Biomedical Sciences Building, University of Bristol, Bristol, United Kingdom
- * E-mail:
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García-de-la-Asunción J, García-del-Olmo E, Galan G, Guijarro R, Martí F, Badenes R, Perez-Griera J, Duca A, Delgado C, Carbonell J, Belda J. Glutathione oxidation correlates with one-lung ventilation time and PO2/FiO2 ratio during pulmonary lobectomy. Redox Rep 2016; 21:219-26. [PMID: 26795138 PMCID: PMC6837706 DOI: 10.1080/13510002.2015.1101890] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
OBJECTIVES During lung lobectomy, the operated lung completely collapses with simultaneous hypoxic pulmonary vasoconstriction, followed by expansion and reperfusion. Here, we investigated glutathione oxidation and lipoperoxidation in patients undergoing lung lobectomy, during one-lung ventilation (OLV) and after resuming two-lung ventilation (TLV), and examined the relationship with OLV duration. METHODS We performed a single-centre, observational, prospective study in 32 patients undergoing lung lobectomy. Blood samples were collected at five time-points: T0, pre-operatively; T1, during OLV, 5 minutes before resuming TLV; and T2, T3, and T4, respectively, 5, 60, and 180 minutes after resuming TLV. Samples were tested for reduced glutathione (GSH), oxidized glutathione (GSSG), glutathione redox potential, and malondialdehyde (MDA). RESULTS GSSG and MDA blood levels increased at T1, and increased further at T2. OLV duration directly correlated with marker levels at T1 and T2. Blood levels of GSH and glutathione redox potential decreased at T1-T3. GSSG, oxidized glutathione/total glutathione ratio, and MDA levels were inversely correlated with arterial blood PO2/FiO2 at T1 and T2. DISCUSSION During lung lobectomy and OLV, glutathione oxidation, and lipoperoxidation marker blood levels increase, with further increases after resuming TLV. Oxidative stress degree was directly correlated with OLV duration, and inversely correlated with arterial blood PO2/FiO2.
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Affiliation(s)
- José García-de-la-Asunción
- Department of Anesthesiology and Critical Care, Hospital Clínico Universitario de Valencia. Instituto de Investigación Sanitaria (INCLIVA), Spain
| | - Eva García-del-Olmo
- Department of Thoracic Surgery, Consorcio Hospital General Universitario de Valencia, Spain
| | - Genaro Galan
- Department of Thoracic Surgery, Hospital Clínico Universitario de Valencia, Spain
| | - Ricardo Guijarro
- Department of Thoracic Surgery, Consorcio Hospital General Universitario de Valencia, Spain
| | - Francisco Martí
- Department of Anesthesiology and Critical Care, Hospital Clínico Universitario de Valencia. Instituto de Investigación Sanitaria (INCLIVA), Spain
| | - Rafael Badenes
- Department of Anesthesiology and Critical Care, Hospital Clínico Universitario de Valencia. Instituto de Investigación Sanitaria (INCLIVA), Spain
| | - Jaume Perez-Griera
- Laboratory of Biochemistry, Hospital Clínico Universitario de Valencia, Spain
| | - Alejandro Duca
- Department of Anesthesiology and Critical Care, Hospital Clínico Universitario de Valencia. Instituto de Investigación Sanitaria (INCLIVA), Spain
| | - Carlos Delgado
- Department of Anesthesiology and Critical Care, Hospital Clínico Universitario de Valencia. Instituto de Investigación Sanitaria (INCLIVA), Spain
| | - Jose Carbonell
- Department of Anesthesiology and Critical Care, Hospital Clínico Universitario de Valencia. Instituto de Investigación Sanitaria (INCLIVA), Spain
| | - Javier Belda
- Department of Anesthesiology and Critical Care, Hospital Clínico Universitario de Valencia. Instituto de Investigación Sanitaria (INCLIVA), Spain
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Sedlic F, Muravyeva MY, Sepac A, Sedlic M, Williams AM, Yang M, Bai X, Bosnjak ZJ. Targeted Modification of Mitochondrial ROS Production Converts High Glucose-Induced Cytotoxicity to Cytoprotection: Effects on Anesthetic Preconditioning. J Cell Physiol 2016; 232:216-24. [PMID: 27138089 DOI: 10.1002/jcp.25413] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 04/28/2016] [Indexed: 11/12/2022]
Abstract
Contradictory reports on the effects of diabetes and hyperglycemia on myocardial infarction range from cytotoxicity to cytoprotection. The study was designed to investigate acute effects of high glucose-driven changes in mitochondrial metabolism and osmolarity on adaptive mechanisms and resistance to oxidative stress of isolated rat cardiomyocytes. We examined the effects of high glucose on several parameters of mitochondrial bioenergetics, including changes in oxygen consumption, mitochondrial membrane potential, and NAD(P)H fluorometry. Effects of high glucose on the endogenous cytoprotective mechanisms elicited by anesthetic preconditioning (APC) and the mediators of cell injury were also tested. These experiments included real-time measurements of reactive oxygen species (ROS) production and mitochondrial permeability transition pore (mPTP) opening in single cells by laser scanning fluorescence confocal microscopy, and cell survival assay. High glucose rapidly enhanced mitochondrial energy metabolism, observed by increase in NAD(P)H fluorescence intensity, oxygen consumption, and mitochondrial membrane potential. This substantially elevated production of ROS, accelerated opening of the mPTP, and decreased survival of cells exposed to oxidative stress. Abrogation of high glucose-induced mitochondrial hyperpolarization with 2,4 dinitrophenol (DNP) significantly, but not completely, attenuated ROS production to a level similar to hyperosmotic mannitol control. DNP treatment reversed high glucose-induced cytotoxicity to cytoprotection. Hyperosmotic mannitol treatment also induced cytoprotection. High glucose abrogated APC-induced mitochondrial depolarization, delay in mPTP opening and cytoprotection. In conclusion, high glucose-induced mitochondrial hyperpolarization abolishes APC and augments cell injury. Attenuation of high glucose-induced ROS production by eliminating mitochondrial hyperpolarization protects cardiomyocytes. J. Cell. Physiol. 232: 216-224, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Filip Sedlic
- Department of Pathophysiology, University of Zagreb, School of Medicine, Croatia.
| | - Maria Y Muravyeva
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Ana Sepac
- Department of Pathology, University of Zagreb, School of Medicine, Croatia
| | - Marija Sedlic
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Anna Marie Williams
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Meiying Yang
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Xiaowen Bai
- Departments of Anesthesiology and Physiology, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Zeljko J Bosnjak
- Departments of Anesthesiology and Physiology, Medical College of Wisconsin, Milwaukee, Wisconsin
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Lemoine S, Tritapepe L, Hanouz JL, Puddu PE. The mechanisms of cardio-protective effects of desflurane and sevoflurane at the time of reperfusion: anaesthetic post-conditioning potentially translatable to humans? Br J Anaesth 2016; 116:456-75. [PMID: 26794826 DOI: 10.1093/bja/aev451] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Myocardial conditioning is actually an essential strategy in the management of ischaemia-reperfusion injury. The concept of anaesthetic post-conditioning is intriguing, its action occurring at a pivotal moment (that of reperfusion when ischaemia reperfusion lesions are initiated) where the activation of these cardio-protective mechanisms could overpower the mechanisms leading to ischaemia reperfusion injuries. Desflurane and sevoflurane are volatile anaesthetics frequently used during cardiac surgery. This review focuses on the efficacy of desflurane and sevoflurane administered during early reperfusion as a potential cardio-protective strategy. In the context of experimental studies in animal models and in human atrial tissues in vitro, the mechanisms underlying the cardio-protective effect of these agents and their capacity to induce post-conditioning have been reviewed in detail, underlining the role of reactive oxygen species generation, the activation of the cellular signalling pathways, and the actions on mitochondria along with the translatable actions in humans; this might well be sufficient to set the basis for launching randomized clinical studies, actually needed to confirm this strategy as one of real impact.
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Affiliation(s)
- S Lemoine
- Department of Anaesthesiology and Intensive Care, France and Faculty of Medicine, Centre Hospitalier Universitaire de Caen, Normandie Université, Pôle d'Anesthésie-Réanimation Chirurgicale - Niveau 6, CHU de Caen, Avenue Cote de Nacre, Caen Cedex 14033, France
| | - L Tritapepe
- Department of Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
| | - J L Hanouz
- Department of Anaesthesiology and Intensive Care, France and Faculty of Medicine, Centre Hospitalier Universitaire de Caen, Normandie Université, Pôle d'Anesthésie-Réanimation Chirurgicale - Niveau 6, CHU de Caen, Avenue Cote de Nacre, Caen Cedex 14033, France
| | - P E Puddu
- Department of Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
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47
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Local and Remote Postconditioning Decrease Intestinal Injury in a Rabbit Ischemia/Reperfusion Model. Gastroenterol Res Pract 2015; 2016:2604032. [PMID: 26819600 PMCID: PMC4706963 DOI: 10.1155/2016/2604032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Revised: 08/19/2015] [Accepted: 08/26/2015] [Indexed: 12/21/2022] Open
Abstract
Intestinal ischemia/reperfusion (I/R) injury is a significant problem that is associated with high morbidity and mortality in critical settings. This injury may be ameliorated using postconditioning protocol. In our study, we created a rabbit intestinal I/R injury model to analyze the effects of local ischemia postconditioning (LIPo) and remote ischemia postconditioning (RIPo) on intestinal I/R injury. We concluded that LIPo affords protection in intestinal I/R injury in a comparable fashion with RIPo by decreasing oxidative stress, neutrophil activation, and apoptosis.
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48
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Wang R, Wu J, Chen Z, Xia F, Sun Q, Liu L. Postconditioning with inhaled hydrogen promotes survival of retinal ganglion cells in a rat model of retinal ischemia/reperfusion injury. Brain Res 2015; 1632:82-90. [PMID: 26705611 DOI: 10.1016/j.brainres.2015.12.015] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2015] [Revised: 11/25/2015] [Accepted: 12/09/2015] [Indexed: 12/24/2022]
Abstract
Retinal ischemia/reperfusion (I/R) injury plays a crucial role in the pathophysiology of various ocular diseases. Intraperitoneal injection or ocular instillation with hydrogen (H2)-rich saline was recently shown to be neuroprotective in the retina due to its anti-oxidative and anti-inflammatory effects. Our study aims to explore whether postconditioning with inhaled H2 can protect retinal ganglion cells (RGCs) in a rat model of retinal I/R injury. Retinal I/R injury was performed on the right eyes of rats and was followed by inhalation of 67% H2 mixed with 33% oxygen immediately after ischemia for 1h daily for one week. RGC density was counted using haematoxylin and eosin (HE) staining and retrograde labeling with cholera toxin beta (CTB). Visual function was assessed using flash visual evoked potentials (FVEP) and pupillary light reflex (PLR). Potential biomarkers of retinal oxidative stress and inflammatory responses were measured, including the expression of 4-Hydroxynonenalv (4-HNE), interleukin-1 beta (IL1-β) and tumor necrosis factor alpha (TNF-α). HE and CTB tracing showed that the survival rate of RGCs in the H2-treated group was significantly higher than the rate in the I/R group. Rats with H2 inhalation showed better visual function in assessments of FVEP and PLR. Moreover, H2 treatment significantly decreased the number of 4-HNE-stained cells in the ganglion cell layer and inhibited the retinal overexpression of IL1-β and TNF-α that was induced by retinal I/R injury. Our results demonstrate that postconditioning with inhaled high-dose H2 appears to confer neuroprotection against retinal I/R injury via anti-oxidative, anti-inflammatory and anti-apoptosis pathways.
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Affiliation(s)
- Ruobing Wang
- Department of Ophthalmology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, People's Republic of China
| | - Jiangchun Wu
- Department of Ophthalmology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, People's Republic of China
| | - Zeli Chen
- Department of Ophthalmology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, People's Republic of China
| | - Fangzhou Xia
- Department of Ophthalmology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, People's Republic of China
| | - Qinglei Sun
- Department of Ophthalmology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, People's Republic of China
| | - Lin Liu
- Department of Ophthalmology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, People's Republic of China.
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Brazhe NA, Evlyukhin AB, Goodilin EA, Semenova AA, Novikov SM, Bozhevolnyi SI, Chichkov BN, Sarycheva AS, Baizhumanov AA, Nikelshparg EI, Deev LI, Maksimov EG, Maksimov GV, Sosnovtseva O. Probing cytochrome c in living mitochondria with surface-enhanced Raman spectroscopy. Sci Rep 2015; 5:13793. [PMID: 26346634 PMCID: PMC4561893 DOI: 10.1038/srep13793] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 08/03/2015] [Indexed: 11/29/2022] Open
Abstract
Selective study of the electron transport chain components in living mitochondria is essential for fundamental biophysical research and for the development of new medical diagnostic methods. However, many important details of inter- and intramembrane mitochondrial processes have remained in shadow due to the lack of non-invasive techniques. Here we suggest a novel label-free approach based on the surface-enhanced Raman spectroscopy (SERS) to monitor the redox state and conformation of cytochrome c in the electron transport chain in living mitochondria. We demonstrate that SERS spectra of living mitochondria placed on hierarchically structured silver-ring substrates provide exclusive information about cytochrome c behavior under modulation of inner mitochondrial membrane potential, proton gradient and the activity of ATP-synthetase. Mathematical simulation explains the observed enhancement of Raman scattering due to high concentration of electric near-field and large contact area between mitochondria and nanostructured surfaces.
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Affiliation(s)
- Nadezda A. Brazhe
- Department of Biophysics, Biological Faculty, Moscow State University, Leninskie gory 1/12, Moscow, 119234, Russia
- Department of Biomedical Sciences, Faculty of Medical and Health Sciences, Copenhagen University, Blegdamsvej 3, Copenhagen, DK-2200, Denmark
| | - Andrey B. Evlyukhin
- Laser Zentrum Hannover e. V., Hollerihallee 8, D-30419 Hannover, Germany
- Department of Technology and Innovation, University of Southern Denmark, Odense M, DK-5230 Denmark
| | - Eugene A. Goodilin
- Department of Nanomaterials, Faculty of Material Sciences, Moscow State University, Moscow, Leninskie gory 1/73, 119991, Russia
- Department of Inorganic chemistry, Faculty of Chemistry, Moscow State University, Moscow, Leninskie gory 1/3, 119991, Russia
- Kurnakov Institute of General and Inorganic Chemistry of Russian Academy of Sciences, Moscow, Leninskiy prospekt, 119992, Russia
| | - Anna A. Semenova
- Department of Nanomaterials, Faculty of Material Sciences, Moscow State University, Moscow, Leninskie gory 1/73, 119991, Russia
| | - Sergey M. Novikov
- Department of Technology and Innovation, University of Southern Denmark, Odense M, DK-5230 Denmark
| | - Sergey I. Bozhevolnyi
- Department of Technology and Innovation, University of Southern Denmark, Odense M, DK-5230 Denmark
| | - Boris N. Chichkov
- Laser Zentrum Hannover e. V., Hollerihallee 8, D-30419 Hannover, Germany
| | - Asya S. Sarycheva
- Department of Nanomaterials, Faculty of Material Sciences, Moscow State University, Moscow, Leninskie gory 1/73, 119991, Russia
| | - Adil A. Baizhumanov
- Department of Biophysics, Biological Faculty, Moscow State University, Leninskie gory 1/12, Moscow, 119234, Russia
| | - Evelina I. Nikelshparg
- Department of Biophysics, Biological Faculty, Moscow State University, Leninskie gory 1/12, Moscow, 119234, Russia
| | - Leonid I. Deev
- Department of Biophysics, Biological Faculty, Moscow State University, Leninskie gory 1/12, Moscow, 119234, Russia
| | - Eugene G. Maksimov
- Department of Biophysics, Biological Faculty, Moscow State University, Leninskie gory 1/12, Moscow, 119234, Russia
| | - Georgy V. Maksimov
- Department of Biophysics, Biological Faculty, Moscow State University, Leninskie gory 1/12, Moscow, 119234, Russia
| | - Olga Sosnovtseva
- Department of Biomedical Sciences, Faculty of Medical and Health Sciences, Copenhagen University, Blegdamsvej 3, Copenhagen, DK-2200, Denmark
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Inhibition of Nitro-Oxidative Stress Attenuates Pulmonary and Systemic Injury Induced by High–Tidal Volume Mechanical Ventilation. Shock 2015; 44:36-43. [DOI: 10.1097/shk.0000000000000381] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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