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Cao Y, Cui L, Tuo S, Liu H, Cui S. Resveratrol mediates mitochondrial function through the sirtuin 3 pathway to improve abnormal metabolic remodeling in atrial fibrillation. Eur J Histochem 2024; 68. [PMID: 38656259 DOI: 10.4081/ejh.2024.4004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 04/09/2024] [Indexed: 04/26/2024] Open
Abstract
This study investigated the impact of resveratrol on abnormal metabolic remodeling in atrial fibrillation (AF) and explored potential molecular mechanisms. An AF cell model was established by high-frequency electrical stimulation of HL-1 atrial muscle cells. Resveratrol concentrations were optimized using CCK-8 and flow cytometry. AF-induced increases in ROS and mitochondrial calcium, along with decreased adenosine triphosphate (ATP) and mitochondrial membrane potential, were observed. Resveratrol mitigated these changes and maintained normal mitochondrial morphology. Moreover, resveratrol acted through the SIRT3-dependent pathway, as evidenced by its ability to suppress AF-induced acetylation of key metabolic enzymes. SIRT3 overexpression controls acetylation modifications, suggesting its regulatory role. In conclusion, resveratrol's SIRT3-dependent pathway intervenes in AF-induced mitochondrial dysfunction, presenting a potential therapeutic avenue for AF-related metabolic disorders. This study sheds light on the role of resveratrol in mitigating AF-induced mitochondrial remodeling and highlights its potential as a novel treatment for AF.
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Affiliation(s)
- Yuejuan Cao
- Department of Cardiology, Tianjin Union Medical Center, Tianjin.
| | - Li Cui
- Department of Cardiology, Tianjin Union Medical Center, Tianjin.
| | - Shaoyong Tuo
- Department of Vascular Surgery, Tianjin Union Medical Center, Tianjin.
| | - Hongze Liu
- Department of Cardiology, Tianjin Union Medical Center, Tianjin.
| | - Shaonan Cui
- Department of Cardiology, Tianjin Union Medical Center, Tianjin.
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Li J, Duan QJ, Shen J. [Resveratrol pretreatment improves mitochondrial function and alleviates myocardial ischemia-reperfusion injury by up-regulating mi R-20b-5p to inhibit STIM2]. Zhongguo Zhong Yao Za Zhi 2022; 47:4987-4995. [PMID: 36164909 DOI: 10.19540/j.cnki.cjcmm.20220314.401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
This study aimed to explore the mechanism of resveratrol(RES) pretreatment in improving mitochondrial function and alleviating myocardial ischemia-reperfusion(IR) injury by inhibiting stromal interaction molecule 2(STIM2) through microRNA-20 b-5 p(miR-20 b-5 p). Ninety rats were randomly assigned into sham group, IR group, IR+RES(50 mg·kg~(-1) RES) group, IR+RES+antagomir NC(50 mg·kg~(-1) RES+80 mg·kg~(-1) antagomir NC) group, and IR+RES+miR-20 b-5 p antagomir(50 mg·kg~(-1) RES+80 mg·kg~(-1) miR-20 b-5 p antagomir) group, with 18 rats/group. The IR rat model was established by ligation of the left anterior descending coronary artery. Two weeks before the operation, rats in the IR+RES group were intraperitoneally injected with 50 mg·kg~(-1) RES, and those in the sham and IR groups were injected with the same dose of normal saline, once a day. Ultrasonic instrument was used to detect the left ventricular internal diameter at end-diastole(LVIDd) and left ventricular internal diameter at end-systole(LVIDs) of rats in each group. The 2,3,5-triphenyte-trazoliumchloride(TTC) method and hematoxylin-eosin(HE) staining were employed to detect the myocardial infarction area and histopathology, respectively. Real-time quantitative PCR(qRT-PCR) was carried out to detect the expression of miR-20 b-5 p in myocardial tissue. Oxygen glucose deprivation/reoxygenation(OGD/R) was performed to establish an OGD/R model of H9 c2 cardiomyocytes. CCK-8 assay was employed to detect H9 c2 cell viability. H9 c2 cells were assigned into the control group, OGD/R group, OGD/R+RES group(25 μmol·L~(-1)), OGD/R+RES+inhibitor NC group, OGD/R+RES+miR-20 b-5 p inhibitor group, mimic NC group, miR-20 b-5 p mimic group, inhibitor NC group, and miR-20 b-5 p inhibitor group. Flow cytometry was employed to detect cell apoptosis. Western blot was employed to detect the expression of B-cell lymphoma-2(Bcl-2), Bcl-2-associated X protein(Bax), cleaved-cysteine proteinase 3(cleaved-caspase-3), and STIM2 in cells. The mitochondrial membrane potential(MMP) assay kit, reactive oxygen species(ROS) assay kit, and adenosine triphosphate(ATP) assay kit were used to detect the MMP, ROS, and ATP levels, respectively. Dual luciferase reporter gene assay was adopted to verify the targeting relationship between miR-20 b-5 p and STIM2. Compared with the sham group, the modeling of IR increased the myocardial infarction area, LVIDd, LVIDs, and myocardial pathology and down-regulated the expression of miR-20 b-5 p(P<0.05). These changes were alleviated in the IR+RES group(P<0.05). The IR+RES+miR-20 b-5 p antagomir group had higher myocardial infarction area, LVIDd, LVIDs, and myocardial pathology and lower expression of miR-20 b-5 p than the IR+RES group(P<0.05). The OGD/R group had lower viability of H9 c2 cells than the control group(P<0.05) and the OGD/R+RES groups(25, 50, and 100 μmol·L~(-1))(P<0.05). Additionally, the OGD/R group had higher H9 c2 cell apoptosis rate, protein levels of Bax and cleaved caspase-3, and ROS level and lower Bcl-2 protein, MMP, and ATP levels than the control group(P<0.05) and the OGD/R+RES group(P<0.05). The OGD/R+RES+miR-20 b-5 p inhibitor group had higher H9 c2 cell apoptosis rate, protein levels of Bax and cleaved-caspase 3, and ROS level and lower Bcl-2 protein, MMP, and ATP levels than the OGD/R+RES group(P<0.05). miR-20 b-5 p had a targeting relationship with STIM2. The expression of STIM2 was lower in the miR-20 b-5 p mimic group than in the mimic NC group(P<0.05) and lower in the inhibitor NC group than in the miR-20 b-5 p inhibitor group(P<0.05). RES pretreatment can inhibit the expression of STIM2 by promoting the expression of miR-20 b-5 p, thereby improving the function of mitochondria and alleviating myocardial IR damage.
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Affiliation(s)
- Jing Li
- Department of Cardiology,the Second Affiliated Hospital of Medical College of Zhejiang University Hangzhou 310003,China
| | - Qun-Jun Duan
- Department of Cardiovascular Surgery,the Second Affiliated Hospital of Medical College of Zhejiang University Hangzhou 310003,China
| | - Jian Shen
- Department of Cardiology,the Second Affiliated Hospital of Medical College of Zhejiang University Hangzhou 310003,China
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Bouitbir J, Panajatovic MV, Krähenbühl S. Mitochondrial Toxicity Associated with Imatinib and Sorafenib in Isolated Rat Heart Fibers and the Cardiomyoblast H9c2 Cell Line. Int J Mol Sci 2022; 23:ijms23042282. [PMID: 35216404 PMCID: PMC8878993 DOI: 10.3390/ijms23042282] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 02/14/2022] [Accepted: 02/15/2022] [Indexed: 02/01/2023] Open
Abstract
Tyrosine kinase inhibitors (TKIs) are associated with cardiac toxicity, which may be caused by mitochondrial toxicity. The underlying mechanisms are currently unclear and require further investigation. In the present study, we aimed to investigate in more detail the role of the enzyme complexes of the electron transfer system (ETS), mitochondrial oxidative stress, and mechanisms of cell death in cardiac toxicity associated with imatinib and sorafenib. Cardiac myoblast H9c2 cells were exposed to imatinib and sorafenib (1 to 100 µM) for 24 h. Permeabilized rat cardiac fibers were treated with both drugs for 15 min. H9c2 cells exposed to sorafenib for 24 h showed a higher membrane toxicity and ATP depletion in the presence of galactose (favoring mitochondrial metabolism) compared to glucose (favoring glycolysis) but not when exposed to imatinib. Both TKIs resulted in a higher dissipation of the mitochondrial membrane potential in galactose compared to glucose media. Imatinib inhibited Complex I (CI)- and CIII- linked respiration under both conditions. Sorafenib impaired CI-, CII-, and CIII-linked respiration in H9c2 cells cultured with glucose, whereas it inhibited all ETS complexes with galactose. In permeabilized rat cardiac myofibers, acute exposure to imatinib and sorafenib decreased CI- and CIV-linked respiration in the presence of the drugs. Electron microscopy showed enlarged mitochondria with disorganized cristae. In addition, both TKIs caused mitochondrial superoxide accumulation and decreased the cellular GSH pool. Both TKIs induced caspase 3/7 activation, suggesting apoptosis as a mechanism of cell death. Imatinib and sorafenib impaired the function of cardiac mitochondria in isolated rat cardiac fibers and in H9c2 cells at plasma concentrations reached in humans. Both imatinib and sorafenib impaired the function of enzyme complexes of the ETS, which was associated with mitochondrial ROS accumulation and cell death by apoptosis.
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Affiliation(s)
- Jamal Bouitbir
- Division of Molecular and Systems Toxicology, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
- Division of Clinical Pharmacology & Toxicology, University Hospital, Basel, Switzerland; (M.V.P.); (S.K.)
- Correspondence: ; Tel.: +41-61-207-6290
| | - Miljenko V. Panajatovic
- Division of Clinical Pharmacology & Toxicology, University Hospital, Basel, Switzerland; (M.V.P.); (S.K.)
| | - Stephan Krähenbühl
- Division of Clinical Pharmacology & Toxicology, University Hospital, Basel, Switzerland; (M.V.P.); (S.K.)
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Lee JH, Kim DH, Kim M, Jung KH, Lee KH. Mitochondrial ROS-Mediated Metabolic and Cytotoxic Effects of Isoproterenol on Cardiomyocytes Are p53-Dependent and Reversed by Curcumin. Molecules 2022; 27:molecules27041346. [PMID: 35209134 PMCID: PMC8877017 DOI: 10.3390/molecules27041346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 02/04/2022] [Accepted: 02/14/2022] [Indexed: 11/16/2022]
Abstract
Acute β-adrenergic stimulation contributes to heart failure. Here, we investigated the role of p53 in isoproterenol (ISO)-mediated metabolic and oxidative stress effects on cardiomyocytes and explored the direct protective effects offered by the antioxidant nutraceutical curcumin. Differentiated H9C2 rat cardiomyocytes treated with ISO were assayed for glucose uptake, lactate release, and mitochondrial reactive oxygen species (ROS) generation. Survival was assessed by sulforhodamine B assays. Cardiomyocytes showed significantly decreased glucose uptake and lactate release, as well as increased cellular toxicity by ISO treatment. This was accompanied by marked dose-dependent increases of mitochondria-derived ROS. Scavenging with N-acetyl-L-cysteine (NAC) effectively lowered ROS levels, which completely recovered glycolytic metabolism and survival suppressed by ISO. Mechanistically, ISO reduced extracellular-signal-regulated kinase (ERK) activation, whereas it upregulated p53 expression in an ROS-dependent manner. Silencing of p53 with siRNA blocked the ability of ISO to stimulate mitochondrial ROS and suppress glucose uptake, and partially recovered cell survival. Finally, curcumin completely reversed the metabolic and ROS-stimulating effects of ISO. Furthermore, curcumin improved survival of cardiomyocytes exposed to ISO. Thus, ISO suppresses cardiomyocyte glycolytic metabolism and survival by stimulating mitochondrial ROS in a p53-dependent manner. Furthermore, curcumin can efficiently rescue cardiomyocytes from these adverse effects.
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Affiliation(s)
- Jin Hee Lee
- Department of Nuclear Medicine, Samsung Medical Center, 81 Irwon-ro, Gangnam-gu, Seoul 06351, Korea; (J.H.L.); (D.H.K.); (M.K.)
- Samsung Advanced Institute for Health and Sciences and Technology, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
| | - Da Hae Kim
- Department of Nuclear Medicine, Samsung Medical Center, 81 Irwon-ro, Gangnam-gu, Seoul 06351, Korea; (J.H.L.); (D.H.K.); (M.K.)
| | - MinA Kim
- Department of Nuclear Medicine, Samsung Medical Center, 81 Irwon-ro, Gangnam-gu, Seoul 06351, Korea; (J.H.L.); (D.H.K.); (M.K.)
- Samsung Advanced Institute for Health and Sciences and Technology, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
| | - Kyung-Ho Jung
- Department of Nuclear Medicine, Samsung Medical Center, 81 Irwon-ro, Gangnam-gu, Seoul 06351, Korea; (J.H.L.); (D.H.K.); (M.K.)
- Samsung Advanced Institute for Health and Sciences and Technology, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
- Correspondence: (K.-H.J.); (K.-H.L.); Tel.: +82-2-3410-2649 (K.-H.J.); +82-2-3410-2630 (K.-H.L.); Fax: +82-2-3410-2639 (K.-H.J. & K.-H.L.)
| | - Kyung-Han Lee
- Department of Nuclear Medicine, Samsung Medical Center, 81 Irwon-ro, Gangnam-gu, Seoul 06351, Korea; (J.H.L.); (D.H.K.); (M.K.)
- Samsung Advanced Institute for Health and Sciences and Technology, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
- Correspondence: (K.-H.J.); (K.-H.L.); Tel.: +82-2-3410-2649 (K.-H.J.); +82-2-3410-2630 (K.-H.L.); Fax: +82-2-3410-2639 (K.-H.J. & K.-H.L.)
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Chen Q, Thompson J, Hu Y, Lesnefsky EJ. Reversing mitochondrial defects in aged hearts: role of mitochondrial calpain activation. Am J Physiol Cell Physiol 2022; 322:C296-C310. [PMID: 35044856 PMCID: PMC8836732 DOI: 10.1152/ajpcell.00279.2021] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 01/10/2022] [Accepted: 01/10/2022] [Indexed: 02/03/2023]
Abstract
Aging chronically increases endoplasmic reticulum (ER) stress that contributes to mitochondrial dysfunction. Activation of calpain 1 (CPN1) impairs mitochondrial function during acute ER stress. We proposed that aging-induced ER stress led to mitochondrial dysfunction by activating CPN1. We posit that attenuation of the ER stress or direct inhibition of CPN1 in aged hearts can decrease cardiac injury during ischemia-reperfusion by improving mitochondrial function. Male young (3 mo) and aged mice (24 mo) were used in the present study, and 4-phenylbutyrate (4-PBA) was used to decrease the ER stress in aged mice. Subsarcolemmal (SSM) and interfibrillar mitochondria (IFM) were isolated. Chronic 4-PBA treatment for 2 wk decreased CPN1 activation as shown by the decreased cleavage of spectrin in cytosol and apoptosis inducing factor (AIF) and the α1 subunit of pyruvate dehydrogenase (PDH) in mitochondria. Treatment improved oxidative phosphorylation in 24-mo-old SSM and IFM at baseline compared with vehicle. When 4-PBA-treated 24-mo-old hearts were subjected to ischemia-reperfusion, infarct size was decreased. These results support that attenuation of the ER stress decreased cardiac injury in aged hearts by improving mitochondrial function before ischemia. To challenge the role of CPN1 as an effector of the ER stress, aged mice were treated with MDL-28170 (MDL, an inhibitor of calpain 1). MDL treatment improved mitochondrial function in aged SSM and IFM. MDL-treated 24-mo-old hearts sustained less cardiac injury following ischemia-reperfusion. These results support that age-induced ER stress augments cardiac injury during ischemia-reperfusion by impairing mitochondrial function through activation of CPN1.
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Affiliation(s)
- Qun Chen
- Division of Cardiology, Department of Medicine, Virginia Commonwealth University, Richmond, Virginia
| | - Jeremy Thompson
- Division of Cardiology, Department of Medicine, Virginia Commonwealth University, Richmond, Virginia
| | - Ying Hu
- Division of Cardiology, Department of Medicine, Virginia Commonwealth University, Richmond, Virginia
| | - Edward J Lesnefsky
- Division of Cardiology, Department of Medicine, Virginia Commonwealth University, Richmond, Virginia
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond, Virginia
- Department of Physiology and Biophysics, Virginia Commonwealth University, Richmond, Virginia
- McGuire Department of Veterans Affairs Medical Center, Richmond, Virginia
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Kalkhoran SB, Kriston-Vizi J, Hernandez-Resendiz S, Crespo-Avilan GE, Rosdah AA, Lees JG, Costa JRSD, Ling NXY, Holien JK, Samangouei P, Chinda K, Yap EP, Riquelme JA, Ketteler R, Yellon DM, Lim SY, Hausenloy DJ. Hydralazine protects the heart against acute ischaemia/reperfusion injury by inhibiting Drp1-mediated mitochondrial fission. Cardiovasc Res 2022; 118:282-294. [PMID: 33386841 PMCID: PMC8752357 DOI: 10.1093/cvr/cvaa343] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 12/09/2020] [Indexed: 01/01/2023] Open
Abstract
AIMS Genetic and pharmacological inhibition of mitochondrial fission induced by acute myocardial ischaemia/reperfusion injury (IRI) has been shown to reduce myocardial infarct size. The clinically used anti-hypertensive and heart failure medication, hydralazine, is known to have anti-oxidant and anti-apoptotic effects. Here, we investigated whether hydralazine confers acute cardioprotection by inhibiting Drp1-mediated mitochondrial fission. METHODS AND RESULTS Pre-treatment with hydralazine was shown to inhibit both mitochondrial fission and mitochondrial membrane depolarisation induced by oxidative stress in HeLa cells. In mouse embryonic fibroblasts (MEFs), pre-treatment with hydralazine attenuated mitochondrial fission and cell death induced by oxidative stress, but this effect was absent in MEFs deficient in the mitochondrial fission protein, Drp1. Molecular docking and surface plasmon resonance studies demonstrated binding of hydralazine to the GTPase domain of the mitochondrial fission protein, Drp1 (KD 8.6±1.0 µM), and inhibition of Drp1 GTPase activity in a dose-dependent manner. In isolated adult murine cardiomyocytes subjected to simulated IRI, hydralazine inhibited mitochondrial fission, preserved mitochondrial fusion events, and reduced cardiomyocyte death (hydralazine 24.7±2.5% vs. control 34.1±1.5%, P=0.0012). In ex vivo perfused murine hearts subjected to acute IRI, pre-treatment with hydralazine reduced myocardial infarct size (as % left ventricle: hydralazine 29.6±6.5% vs. vehicle control 54.1±4.9%, P=0.0083), and in the murine heart subjected to in vivo IRI, the administration of hydralazine at reperfusion, decreased myocardial infarct size (as % area-at-risk: hydralazine 28.9±3.0% vs. vehicle control 58.2±3.8%, P<0.001). CONCLUSION We show that, in addition to its antioxidant and anti-apoptotic effects, hydralazine, confers acute cardioprotection by inhibiting IRI-induced mitochondrial fission, raising the possibility of repurposing hydralazine as a novel cardioprotective therapy for improving post-infarction outcomes.
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Affiliation(s)
- Siavash Beikoghli Kalkhoran
- The Hatter Cardiovascular Institute, Institute of Cardiovascular Science, University College, 67 Chenies Mews, WC1E 6HX London, UK
- Cardiovascular and Metabolic Disorder Programme, Duke-NUS Medical School, 8 College Road, 169857, Singapore
- National Heart Research Institute Singapore, National Heart Centre, 5 Hospital Drive, 169609, Singapore
| | - Janos Kriston-Vizi
- MRC Laboratory for Molecular Cell Biology, University College, Gower St, Kings Cross, WC1E 6BT London, UK
| | - Sauri Hernandez-Resendiz
- Cardiovascular and Metabolic Disorder Programme, Duke-NUS Medical School, 8 College Road, 169857, Singapore
- National Heart Research Institute Singapore, National Heart Centre, 5 Hospital Drive, 169609, Singapore
| | - Gustavo E Crespo-Avilan
- Cardiovascular and Metabolic Disorder Programme, Duke-NUS Medical School, 8 College Road, 169857, Singapore
- National Heart Research Institute Singapore, National Heart Centre, 5 Hospital Drive, 169609, Singapore
- Department of Biochemistry, Medical Faculty, Justus Liebig-University, Ludwigstraße 23, 35390 Giessen, Germany
| | - Ayeshah A Rosdah
- O’Brien Institute Department, St Vincent’s Institute of Medical Research, 9 Princes Street Fitzroy Victoria, 3065, Australia
- Faculty of Medicine, Universitas Sriwijaya, Palembang, Bukit Lama, Kec. Ilir Bar. I, Kota Palembang, 30139 Sumatera Selatan, Indonesia
- Department of Surgery and Medicine, University of Melbourne, Medical Building, Cnr Grattan Street & Royal Parade, 3010 Victoria, Australia
| | - Jarmon G Lees
- O’Brien Institute Department, St Vincent’s Institute of Medical Research, 9 Princes Street Fitzroy Victoria, 3065, Australia
- Department of Surgery and Medicine, University of Melbourne, Medical Building, Cnr Grattan Street & Royal Parade, 3010 Victoria, Australia
| | | | - Naomi X Y Ling
- Metabolic Signalling Laboratory, St Vincent’s Institute of Medical Research, School of Medicine, University of Melbourne, Melbourne, Victoria, Australia
| | - Jessica K Holien
- Department of Surgery and Medicine, University of Melbourne, Medical Building, Cnr Grattan Street & Royal Parade, 3010 Victoria, Australia
- St Vincent’s Institute of Medical Research, 9 Princes Street, Fitzroy Victoria, 3065, Australia
- ACRF Rational Drug Discovery Centre, St Vincent’s Institute of Medical Research, 9 Princes Street Fitzroy Victoria, 3065, Australia
| | - Parisa Samangouei
- The Hatter Cardiovascular Institute, Institute of Cardiovascular Science, University College, 67 Chenies Mews, WC1E 6HX London, UK
- National Heart Research Institute Singapore, National Heart Centre, 5 Hospital Drive, 169609, Singapore
| | - Kroekkiat Chinda
- Department of Physiology, Faculty of Medical Science, Naresuan University, Tha Pho, Mueang Phitsanulok, 65000, Thailand
| | - En Ping Yap
- Cardiovascular and Metabolic Disorder Programme, Duke-NUS Medical School, 8 College Road, 169857, Singapore
- National Heart Research Institute Singapore, National Heart Centre, 5 Hospital Drive, 169609, Singapore
| | - Jaime A Riquelme
- The Hatter Cardiovascular Institute, Institute of Cardiovascular Science, University College, 67 Chenies Mews, WC1E 6HX London, UK
- Advanced Center for Chronic Disease (ACCDiS), Facultad de Ciencias Químicas y Farmacéuticas & Facultad de Medicina, Universidad de Chile, Sergio Livingstone 1007, Independencia, Santiago, Chile
| | - Robin Ketteler
- MRC Laboratory for Molecular Cell Biology, University College, Gower St, Kings Cross, WC1E 6BT London, UK
| | - Derek M Yellon
- The Hatter Cardiovascular Institute, Institute of Cardiovascular Science, University College, 67 Chenies Mews, WC1E 6HX London, UK
| | - Shiang Y Lim
- O’Brien Institute Department, St Vincent’s Institute of Medical Research, 9 Princes Street Fitzroy Victoria, 3065, Australia
- Department of Surgery and Medicine, University of Melbourne, Medical Building, Cnr Grattan Street & Royal Parade, 3010 Victoria, Australia
| | - Derek J Hausenloy
- The Hatter Cardiovascular Institute, Institute of Cardiovascular Science, University College, 67 Chenies Mews, WC1E 6HX London, UK
- Cardiovascular and Metabolic Disorder Programme, Duke-NUS Medical School, 8 College Road, 169857, Singapore
- National Heart Research Institute Singapore, National Heart Centre, 5 Hospital Drive, 169609, Singapore
- Yong Loo Lin School of Medicine, National University Singapore, 1E Kent Ridge Road, 119228, Singapore
- Cardiovascular Research Center, College of Medical and Health Sciences, Asia University, Lioufeng Rd., Wufeng, 41354 Taichung, Taiwan
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Pondugula SR, Harshan A, Ramesh S, Govindarajulu M, Almaghrabi M, Majrashi M, Abbott KL, Nadar R, Alturki M, Salamat JM, Smith F, Majeed M, Nagabhushanam K, Moore T, Ren J, Dhanasekaran M. Cardioprotective Effects of Oroxylum indicum Extract Against Doxorubicin and Cyclophosphamide-Induced Cardiotoxicity. Cardiovasc Toxicol 2022; 22:67-77. [PMID: 34623620 DOI: 10.1007/s12012-021-09701-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 09/28/2021] [Indexed: 11/26/2022]
Abstract
Administration of Chemotherapeutics, especially doxorubicin (DOX) and cyclophosphamide (CPS), is commonly associated with adverse effects such as myelosuppression and cardiotoxicity. At this time, few approved therapeutic options are currently available for the management of chemotherapy-associated cardiotoxicity. Thus, identification of novel therapeutics with potent cardioprotective properties and minimal adverse effects are pertinent in treating Doxorubicin and Cyclophosphamide-induced cardiotoxicity. Oroxylum indicum extract (OIE, Sabroxy®) is a natural product known to possess several beneficial biological functions including antioxidant, anti-inflammatory and cytoprotective effects. We therefore set to investigate the cardioprotective effects of OIE against Doxorubicin and Cyclophosphamide-induced cardiotoxicity and explore the potential cardioprotective mechanisms involved. Adult male mice were treated with DOX and CPS in combination, OIE alone, or a combination of OIE and DOX & CPS. Swimming test was performed to assess cardiac function. Markers of oxidative stress were assessed by levels of reactive oxygen species (ROS), nitrite, hydrogen peroxide, catalase, and glutathione content. The activity of interleukin converting enzyme and cyclooxygenase was determined as markers of inflammation. Mitochondrial function was assessed by measuring Complex-I activity. Apoptosis was assessed by Caspase-3 and protease activity. Mice treated with DOX and CPS exhibited reduced swim rate, increased oxidative stress, increased inflammation, and apoptosis in the heart tissue. These cardiotoxic effects were significantly reduced by co-administration of OIE. Furthermore, computational molecular docking studies revealed potential binding of DOX and CPS to tyrosine hydroxylase which validated our in vivo findings regarding the inhibition of tyrosine hydroxylase activity. Our current findings indicated that OIE counteracts Doxorubicin and Cyclophosphamide-induced cardiotoxicity-through inhibition of ROS-mediated apoptosis and by blocking the effect on tyrosine hydroxylase. Taken together, our findings suggested that OIE possesses cardioprotective effects to counteract potentially fatal cardiac complications associated with chemotherapy treatment.
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Affiliation(s)
- Satyanarayana R Pondugula
- Department of Anatomy, Physiology and Pharmacology, College of Veterinary Medicine, Auburn University, Auburn, AL, 36849, USA.
| | - Aisha Harshan
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, 36849, USA
| | - Sindhu Ramesh
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, 36849, USA
| | - Manoj Govindarajulu
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, 36849, USA
| | - Mohammed Almaghrabi
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, 36849, USA
- Department of Medicinal Chemistry, College of Pharmacy, Taibah University, Medina, Saudi Arabia
| | - Mohammed Majrashi
- Department of Pharmacology, Faculty of Medicine, University of Jeddah, Jeddah, 23881, Saudi Arabia
| | - Kodye L Abbott
- Department of Anatomy, Physiology and Pharmacology, College of Veterinary Medicine, Auburn University, Auburn, AL, 36849, USA
| | - Rishi Nadar
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, 36849, USA
| | - Mansour Alturki
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, 36849, USA
| | - Julia M Salamat
- Department of Anatomy, Physiology and Pharmacology, College of Veterinary Medicine, Auburn University, Auburn, AL, 36849, USA
| | - Forrest Smith
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, 36849, USA
| | - Muhammed Majeed
- Sabinsa Corporation, 20 Lake Drive, East Windsor, NJ, 08520, USA
| | | | - Timothy Moore
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, 36849, USA
| | - Jun Ren
- Department of Cardiology, Zhongshan Hospital Fudan University, Shanghai, 200032, China
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98195, USA
| | - Muralikrishnan Dhanasekaran
- Department of Drug Discovery and Development, Harrison School of Pharmacy, Auburn University, Auburn, AL, 36849, USA.
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Hung CS, Chang YY, Tsai CH, Liao CW, Peng SY, Lee BC, Pan CT, Wu XM, Chen ZW, Wu VC, Wan CH, Young MJ, Chou CH, Lin YH. Aldosterone suppresses cardiac mitochondria. Transl Res 2022; 239:58-70. [PMID: 34411778 DOI: 10.1016/j.trsl.2021.08.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 07/25/2021] [Accepted: 08/11/2021] [Indexed: 10/20/2022]
Abstract
Elevated serum aldosterone promotes arterial hypertension, cardiac hypertrophy, and diastolic dysfunction. However, the effect of elevated aldosterone levels on cardiac mitochondria remains unclear. We used primary cultures of mouse cardiomyocytes to determine whether aldosterone has direct effects on cardiomyocyte mitochondria, and aldosterone-infused mice as a preclinical model to evaluate the impact of aldosterone in vivo. We show that aldosterone suppressed mtDNA copy number and SOD2 expression via the mineralocorticoid receptor (MR)-dependent regulation of NADPH oxidase 2 (NOX2) and generation of reactive oxygen species (ROS) in primary mouse cardiomyocytes. Aldosterone suppressed cardiac mitochondria adenosine triphosphate production, which was rescued by N-acetylcysteine. Aldosterone infusion for 4 weeks in mice suppressed the number of cardiac mitochondria, mtDNA copy number, and SOD2 protein expression. MR blockade by eplerenone or the administration of N-acetylcysteine prevented aldosterone-induced cardiac mitochondrial damage in vivo. Similarly, patients with primary aldosteronism had a lower plasma leukocyte mtDNA copy number. Plasma leukocyte mtDNA copy number was positively correlated with 24-hour urinary aldosterone level and left ventricular mass index. In conclusion, aldosterone suppresses cardiac mitochondria in vivo and directly via MR activation of ROS pathways.
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Affiliation(s)
- Chi-Sheng Hung
- Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan (R.O.C.).
| | - Yi-Yao Chang
- Division of Cardiovascular Medical Center, Far Eastern Memorial Hospital, New Taipei City, Taiwan (R.O.C.).
| | - Cheng-Hsuan Tsai
- Department of Internal Medicine, National Taiwan University Hospital Jinshan Branch, New Taipei City , Taiwan (R.O.C.).
| | - Che-Wei Liao
- Department of Medicine, National Taiwan, University Cancer Center, Taipei, Taiwan (R.O.C.).
| | - Shih-Yuan Peng
- Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan (R.O.C.).
| | - Bo-Ching Lee
- Department of Medical Imaging, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan (R.O.C.).
| | - Chien-Ting Pan
- Department of Internal Medicine, National Taiwan University Hospital Yun-Lin Branch, Yun-Lin, Taiwan (R.O.C.).
| | - Xue-Ming Wu
- Department of Internal Medicine, Taoyuan General Hospital, University College of Medicine, Taipei, Taoyuan City, Taiwan (R.O.C.).
| | - Zheng-Wei Chen
- Department of Internal Medicine, National Taiwan University Hospital Yun-Lin Branch, Yun-Lin, Taiwan (R.O.C.).
| | - Vin-Cent Wu
- Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan (R.O.C.).
| | - Cho-Hua Wan
- School of Veterinary Medicine, National Taiwan University, Taipei, Taiwan (R.O.C.).
| | - Morag J Young
- Baker Heart and Diabetes Institute, Prahran, Australia.
| | - Chia-Hung Chou
- Department of Obstetrics and Gynecology, National Taiwan University Hospital and National Taiwan.
| | - Yen-Hung Lin
- Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan (R.O.C.).
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9
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Song Y, Huang C, Sin J, Germano JDF, Taylor DJR, Thakur R, Gottlieb RA, Mentzer RM, Andres AM. Attenuation of Adverse Postinfarction Left Ventricular Remodeling with Empagliflozin Enhances Mitochondria-Linked Cellular Energetics and Mitochondrial Biogenesis. Int J Mol Sci 2021; 23:437. [PMID: 35008865 PMCID: PMC8745294 DOI: 10.3390/ijms23010437] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 12/28/2021] [Accepted: 12/28/2021] [Indexed: 12/23/2022] Open
Abstract
Sodium-glucose cotransporter 2 (SGLT2) inhibitors such as empagliflozin are known to reduce the risk of hospitalizations related to heart failure irrespective of diabetic state. Meanwhile, adverse cardiac remodeling remains the leading cause of heart failure and death in the USA. Thus, understanding the mechanisms that are responsible for the beneficial effects of SGLT2 inhibitors is of the utmost relevance and importance. Our previous work illustrated a connection between adverse cardiac remodeling and the regulation of mitochondrial turnover and cellular energetics using a short-acting glucagon-like peptide-1 receptor agonist (GLP1Ra). Here, we sought to determine if the mechanism of the SGLT2 inhibitor empagliflozin (EMPA) in ameliorating adverse remodeling was similar and/or to identify what differences exist, if any. To this end, we administered permanent coronary artery ligation to induce adverse remodeling in wild-type and Parkin knockout mice and examined the progression of adverse cardiac remodeling with or without EMPA treatment over time. Like GLP1Ra, we found that EMPA affords a robust attenuation of PCAL-induced adverse remodeling. Interestingly, unlike the GLP1Ra, EMPA does not require Parkin to improve/maintain mitochondria-related cellular energetics and afford its benefits against developing adverse remodeling. These findings suggests that further investigation of EMPA is warranted as a potential path for developing therapy against adverse cardiac remodeling for patients that may have Parkin and/or mitophagy-related deficiencies.
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Affiliation(s)
- Yang Song
- Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (Y.S.); (C.H.); (J.S.); (J.d.F.G.); (D.J.R.T.); (R.T.); (R.A.G.); (R.M.M.J.)
| | - Chengqun Huang
- Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (Y.S.); (C.H.); (J.S.); (J.d.F.G.); (D.J.R.T.); (R.T.); (R.A.G.); (R.M.M.J.)
| | - Jon Sin
- Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (Y.S.); (C.H.); (J.S.); (J.d.F.G.); (D.J.R.T.); (R.T.); (R.A.G.); (R.M.M.J.)
- University of Alabama, Birmingham, AL 35294, USA
| | - Juliana de F. Germano
- Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (Y.S.); (C.H.); (J.S.); (J.d.F.G.); (D.J.R.T.); (R.T.); (R.A.G.); (R.M.M.J.)
| | - David J. R. Taylor
- Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (Y.S.); (C.H.); (J.S.); (J.d.F.G.); (D.J.R.T.); (R.T.); (R.A.G.); (R.M.M.J.)
| | - Reetu Thakur
- Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (Y.S.); (C.H.); (J.S.); (J.d.F.G.); (D.J.R.T.); (R.T.); (R.A.G.); (R.M.M.J.)
| | - Roberta A. Gottlieb
- Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (Y.S.); (C.H.); (J.S.); (J.d.F.G.); (D.J.R.T.); (R.T.); (R.A.G.); (R.M.M.J.)
| | - Robert M. Mentzer
- Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (Y.S.); (C.H.); (J.S.); (J.d.F.G.); (D.J.R.T.); (R.T.); (R.A.G.); (R.M.M.J.)
| | - Allen M. Andres
- Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA; (Y.S.); (C.H.); (J.S.); (J.d.F.G.); (D.J.R.T.); (R.T.); (R.A.G.); (R.M.M.J.)
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10
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Tsujioka T, Sasaki D, Takeda A, Harashima H, Yamada Y. Resveratrol-Encapsulated Mitochondria-Targeting Liposome Enhances Mitochondrial Respiratory Capacity in Myocardial Cells. Int J Mol Sci 2021; 23:112. [PMID: 35008537 PMCID: PMC8745115 DOI: 10.3390/ijms23010112] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/14/2021] [Accepted: 12/20/2021] [Indexed: 12/18/2022] Open
Abstract
The development of drug delivery systems for use in the treatment of cardiovascular diseases is an area of great interest. We report herein on an evaluation of the therapeutic potential of a myocardial mitochondria-targeting liposome, a multifunctional envelope-type nano device for targeting pancreatic β cells (β-MEND) that was previously developed in our laboratory. Resveratrol (RES), a natural polyphenol compound that has a cardioprotective effect, was encapsulated in the β-MEND (β-MEND (RES)), and its efficacy was evaluated using rat myocardioblasts (H9c2 cells). The β-MEND (RES) was readily taken up by H9c2 cells, as verified by fluorescence-activated cell sorter data, and was observed to be colocalized with intracellular mitochondria by confocal laser scanning microscopy. Myocardial mitochondrial function was evaluated by a Seahorse XF Analyzer and the results showed that the β-MEND (RES) significantly activated cellular maximal respiratory capacity. In addition, the β-MEND (RES) showed no cellular toxicity for H9c2 cells as evidenced by Premix WST-1 assays. This is the first report of the use of a myocardial mitochondria-targeting liposome encapsulating RES for activating mitochondrial function, which was clearly confirmed based on analyses using a Seahorse XF Analyzer.
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Affiliation(s)
- Takao Tsujioka
- Department of Pediatrics, Graduate School of Medicine, Hokkaido University, Kita-15, Nishi 7, Kita-ku, Sapporo 060-8638, Japan; (T.T.); (D.S.); (A.T.)
| | - Daisuke Sasaki
- Department of Pediatrics, Graduate School of Medicine, Hokkaido University, Kita-15, Nishi 7, Kita-ku, Sapporo 060-8638, Japan; (T.T.); (D.S.); (A.T.)
| | - Atsuhito Takeda
- Department of Pediatrics, Graduate School of Medicine, Hokkaido University, Kita-15, Nishi 7, Kita-ku, Sapporo 060-8638, Japan; (T.T.); (D.S.); (A.T.)
| | - Hideyoshi Harashima
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo 060-0812, Japan;
| | - Yuma Yamada
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo 060-0812, Japan;
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11
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Wen S, Unuma K, Funakoshi T, Aki T, Uemura K. Altered cardiac mitochondrial dynamics and biogenesis in rat after short-term cocaine administration. Sci Rep 2021; 11:24129. [PMID: 34916603 PMCID: PMC8677764 DOI: 10.1038/s41598-021-03631-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Accepted: 11/30/2021] [Indexed: 11/10/2022] Open
Abstract
Abuse of the potent psychostimulant cocaine is widely established to have cardiovascular consequences. The cardiotoxicity of cocaine is mainly associated with oxidative stress and mitochondrial dysfunction. Mitochondrial dynamics and biogenesis, as well as the mitochondrial unfolded protein response (UPRmt), guarantee cardiac mitochondrial homeostasis. Collectively, these mechanisms act to protect against stress, injury, and the detrimental effects of chemicals on mitochondria. In this study, we examined the effects of cocaine on cardiac mitochondrial dynamics, biogenesis, and UPRmt in vivo. Rats administered cocaine via the tail vein at a dose of 20 mg/kg/day for 7 days showed no structural changes in the myocardium, but electron microscopy revealed a significant increase in the number of cardiac mitochondria. Correspondingly, the expressions of the mitochondrial fission gene and mitochondrial biogenesis were increased after cocaine administration. Significant increase in the expression and nuclear translocation of activating transcription factor 5, the major active regulator of UPRmt, were observed after cocaine administration. Accordingly, our findings show that before any structural changes are observable in the myocardium, cocaine alters mitochondrial dynamics, elevates mitochondrial biogenesis, and induces the activation of UPRmt. These alterations might reflect cardiac mitochondrial compensation to protect against the cardiotoxicity of cocaine.
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Affiliation(s)
- Shuheng Wen
- Department of Forensic Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Kana Unuma
- Department of Forensic Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Takeshi Funakoshi
- Department of Forensic Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Toshihiko Aki
- Department of Forensic Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.
| | - Koichi Uemura
- Department of Forensic Medicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
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12
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Hafez AA, Jamali Z, Samiei S, Khezri S, Salimi A. Reduction of doxorubicin-induced cytotoxicity and mitochondrial damage by betanin in rat isolated cardiomyocytes and mitochondria. Hum Exp Toxicol 2021; 40:2123-2134. [PMID: 34105389 DOI: 10.1177/09603271211022800] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Doxorubicin (DOX) is an anticancer drug which is used for treatment of several types of cancers. But the clinical use of doxorubicin is limited because of its cardiotoxicity and cardiomyopathy. Mitochondrial-dependent oxidative stress and cardiac inflammation appear to be involved in doxorubicin-induced cardiotoxicity. Betanin as a bioactive compound in Beetroot (Beta vulgaris L.) displays anti-radical, antioxidant gene regulatory and cardioprotective activities. In this current study, we investigated the protective effect of betanin on doxorubicin-induced cytotoxicity and mitochondrial-dependent oxidative stress in isolated cardiomyocytes and mitochondria. Isolated cardiomyocytes and mitochondria were treated with three concentrations of betanin (1, 5 and 10 µM) and doxorubicin (3.5 µM) for 6 h. The parameters of cellular and mitochondrial toxicity were analyzed using biochemical and flow cytometric methods. Our results showed a significant toxicity in isolated cardiomyocytes and mitochondria in presence of doxorubicin which was related to reactive oxygen species (ROS) formation, increase in malondialdehyde (MDA), increase in oxidation of GSH to GSSG, lysosomal/mitochondrial damages and mitochondrial swelling. While betanin pretreatment reverted doxorubicin-induced cytotoxicity and oxidative stress in isolated cardiomyocytes and mitochondria. These results suggest that betanin elicited a typical protective effect on doxorubicin-induced cytotoxicity and oxidative stress. It is possible that betanin could be used as a useful adjuvant in combination with doxorubicin chemotherapy for reduction of cardiotoxicity and cardiomyopathy.
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Affiliation(s)
- A A Hafez
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Z Jamali
- Student Research Committee, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
- Department of Addiction Studies, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
| | - S Samiei
- School of Medicine, Kordestan University of Medical Sciences, Sanandaj, Iran
| | - S Khezri
- Traditional Medicine and Hydrotherapy Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
- Department of Pharmacology and Toxicology, School of Pharmacy, Ardabil University of Medical Sciences, Ardabil, Iran
| | - A Salimi
- Traditional Medicine and Hydrotherapy Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
- Department of Pharmacology and Toxicology, School of Pharmacy, Ardabil University of Medical Sciences, Ardabil, Iran
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13
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Mushtaq I, Bashir Z, Sarwar M, Arshad M, Ishtiaq A, Khan W, Khan U, Tabassum S, Ali T, Fatima T, Valadi H, Nawaz M, Murtaza I. N-Acetyl Cysteine, Selenium, and Ascorbic Acid Rescue Diabetic Cardiac Hypertrophy via Mitochondrial-Associated Redox Regulators. Molecules 2021; 26:7285. [PMID: 34885867 PMCID: PMC8659237 DOI: 10.3390/molecules26237285] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/26/2021] [Accepted: 11/29/2021] [Indexed: 11/17/2022] Open
Abstract
Metabolic disorders often lead to cardiac complications. Metabolic deregulations during diabetic conditions are linked to mitochondrial dysfunctions, which are the key contributing factors in cardiac hypertrophy. However, the underlying mechanisms involved in diabetes-induced cardiac hypertrophy are poorly understood. In the current study, we initially established a diabetic rat model by alloxan-administration, which was validated by peripheral glucose measurement. Diabetic rats displayed myocardial stiffness and fibrosis, changes in heart weight/body weight, heart weight/tibia length ratios, and enhanced size of myocytes, which altogether demonstrated the establishment of diabetic cardiac hypertrophy (DCH). Furthermore, we examined the expression of genes associated with mitochondrial signaling impairment. Our data show that the expression of PGC-1α, cytochrome c, MFN-2, and Drp-1 was deregulated. Mitochondrial-signaling impairment was further validated by redox-system dysregulation, which showed a significant increase in ROS and thiobarbituric acid reactive substances, both in serum and heart tissue, whereas the superoxide dismutase, catalase, and glutathione levels were decreased. Additionally, the expression levels of pro-apoptotic gene PUMA and stress marker GATA-4 genes were elevated, whereas ARC, PPARα, and Bcl-2 expression levels were decreased in the heart tissues of diabetic rats. Importantly, these alloxan-induced impairments were rescued by N-acetyl cysteine, ascorbic acid, and selenium treatment. This was demonstrated by the amelioration of myocardial stiffness, fibrosis, mitochondrial gene expression, lipid profile, restoration of myocyte size, reduced oxidative stress, and the activation of enzymes associated with antioxidant activities. Altogether, these data indicate that the improvement of mitochondrial dysfunction by protective agents such as N-acetyl cysteine, selenium, and ascorbic acid could rescue diabetes-associated cardiac complications, including DCH.
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Affiliation(s)
- Iram Mushtaq
- Signal Transduction Laboratory, Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan; (I.M.); (Z.B.); (M.S.); (M.A.); (A.I.); (T.A.)
| | - Zainab Bashir
- Signal Transduction Laboratory, Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan; (I.M.); (Z.B.); (M.S.); (M.A.); (A.I.); (T.A.)
| | - Mehvish Sarwar
- Signal Transduction Laboratory, Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan; (I.M.); (Z.B.); (M.S.); (M.A.); (A.I.); (T.A.)
| | - Maria Arshad
- Signal Transduction Laboratory, Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan; (I.M.); (Z.B.); (M.S.); (M.A.); (A.I.); (T.A.)
| | - Ayesha Ishtiaq
- Signal Transduction Laboratory, Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan; (I.M.); (Z.B.); (M.S.); (M.A.); (A.I.); (T.A.)
| | - Wajiha Khan
- Department of Biotechnology, COMSATS University Islamabad, Abbottabad Campus, Abbotabad 22060, Pakistan;
| | - Uzma Khan
- Faculty of Biological Sciences, Hazara University, Mansehra 21040, Pakistan;
| | - Sobia Tabassum
- Department of Bioinformatics and Biotechnology, Islamic International University Islamabad (IIUI), Islamabad 44000, Pakistan;
| | - Tahir Ali
- Signal Transduction Laboratory, Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan; (I.M.); (Z.B.); (M.S.); (M.A.); (A.I.); (T.A.)
| | - Tahzeeb Fatima
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, 413 46 Gothenburg, Sweden; (T.F.); (H.V.)
| | - Hadi Valadi
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, 413 46 Gothenburg, Sweden; (T.F.); (H.V.)
| | - Muhammad Nawaz
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, 413 46 Gothenburg, Sweden; (T.F.); (H.V.)
| | - Iram Murtaza
- Signal Transduction Laboratory, Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan; (I.M.); (Z.B.); (M.S.); (M.A.); (A.I.); (T.A.)
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14
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Khuanjing T, Ongnok B, Maneechote C, Siri-Angkul N, Prathumsap N, Arinno A, Chunchai T, Arunsak B, Chattipakorn SC, Chattipakorn N. Acetylcholinesterase inhibitor ameliorates doxorubicin-induced cardiotoxicity through reducing RIP1-mediated necroptosis. Pharmacol Res 2021; 173:105882. [PMID: 34530122 DOI: 10.1016/j.phrs.2021.105882] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/31/2021] [Accepted: 09/08/2021] [Indexed: 11/18/2022]
Abstract
Doxorubicin is an effective chemotherapeutic drug, but causes cardiotoxicity which limits its use. Oxidative stress, mitochondrial dysfunction, and inflammation are closely implicated in doxorubicin-induced cardiotoxicity (DIC). Necroptosis, a new form of programmed cell death, was also upregulated by doxorubicin, leading to cardiomyocyte death and cardiac dysfunction. Donepezil, an acetylcholinesterase inhibitor, exerted cardioprotection against various heart diseases. However, its cardioprotective effects in DIC are still unknown. We hypothesized that donepezil reduces reactive oxygen species (ROS) production, mitochondrial dysfunction, mitochondrial dynamics imbalance, necroptosis, and apoptosis in DIC rats. Male Wistar rats were assigned to receive either normal saline solution (n = 8) or doxorubicin (3 mg/kg, 6 doses, n = 16) via intraperitoneal injection. The doxorubicin-treated rats were further subdivided to receive either sterile drinking water (n = 8) or donepezil (5 mg/kg/day, p.o., n = 8) for 30 days. At the end of the experiment, the left ventricular (LV) function was determined. Serum and heart tissue were collected to evaluate histological and biochemical parameters. Doxorubicin-treated rats exhibited higher levels of inflammatory cytokines and ROS production. Doxorubicin also impaired mitochondrial function, mitochondrial dynamics balance, mitophagy, and autophagy, which culminated in apoptosis. Furthermore, doxorubicin increased necroptosis as evidenced by increased phosphorylation of receptor-interacting protein kinase 1, receptor-interacting protein kinase 3, and mixed-lineage kinase domain-like. All of these mechanisms led to LV dysfunction. Interestingly, donepezil alleviated mitochondrial injury, mitophagy, autophagy, and cardiomyocyte death, leading to improved LV function in DIC. In conclusion, donepezil attenuated DIC-induced LV dysfunction by reducing mitochondrial damage, mitophagy, autophagy, apoptosis, and necroptosis.
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Affiliation(s)
- Thawatchai Khuanjing
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Benjamin Ongnok
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Chayodom Maneechote
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Natthaphat Siri-Angkul
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Nanthip Prathumsap
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Apiwan Arinno
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Titikorn Chunchai
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Busarin Arunsak
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Siriporn C Chattipakorn
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand; Department of Oral Biology and Diagnostic Sciences, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Nipon Chattipakorn
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand.
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15
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Ciocci Pardo A, González Arbeláez LF, Fantinelli JC, Álvarez BV, Mosca SM, Swenson ER. Myocardial and mitochondrial effects of the anhydrase carbonic inhibitor ethoxzolamide in ischemia-reperfusion. Physiol Rep 2021; 9:e15093. [PMID: 34806317 PMCID: PMC8606860 DOI: 10.14814/phy2.15093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 09/21/2021] [Accepted: 09/21/2021] [Indexed: 11/24/2022] Open
Abstract
We have previously demonstrated that inhibition of extracellularly oriented carbonic anhydrase (CA) isoforms protects the myocardium against ischemia-reperfusion injury. In this study, our aim was to assess the possible further contribution of CA intracellular isoforms examining the actions of the highly diffusible cell membrane permeant inhibitor of CA, ethoxzolamide (ETZ). Isolated rat hearts, after 20 min of stabilization, were assigned to the following groups: (1) Nonischemic control: 90 min of perfusion; (2) Ischemic control: 30 min of global ischemia and 60 min of reperfusion (R); and (3) ETZ: ETZ at a concentration of 100 μM was administered for 10 min before the onset of ischemia and then during the first 10 min of reperfusion. In additional groups, ETZ was administered in the presence of SB202190 (SB, a p38MAPK inhibitor) or chelerythrine (Chel, a protein kinase C [PKC] inhibitor). Infarct size, myocardial function, and the expression of phosphorylated forms of p38MAPK, PKCε, HSP27, and Drp1, and calcineurin Aβ content were assessed. In isolated mitochondria, the Ca2+ response, Ca2+ retention capacity, and membrane potential were measured. ETZ decreased infarct size by 60%, improved postischemic recovery of myocardial contractile and diastolic relaxation increased P-p38MAPK, P-PKCε, P-HSP27, and P-Drp1 expression, decreased calcineurin content, and normalized calcium and membrane potential parameters measured in isolated mitochondria. These effects were significantly attenuated when ETZ was administered in the presence of SB or Chel. These data show that ETZ protects the myocardium and mitochondria against ischemia-reperfusion injury through p38MAPK- and PKCε-dependent pathways and reinforces the role of CA as a possible target in the management of acute cardiac ischemic diseases.
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Affiliation(s)
- Alejandro Ciocci Pardo
- Centro de Investigaciones Cardiovasculares ¨Dr Horacio E Cingolani¨CCT‐CONICETFacultad de Ciencias MédicasUniversidad Nacional de La PlataLa PlataBuenos AiresArgentina
| | - Luisa F. González Arbeláez
- Centro de Investigaciones Cardiovasculares ¨Dr Horacio E Cingolani¨CCT‐CONICETFacultad de Ciencias MédicasUniversidad Nacional de La PlataLa PlataBuenos AiresArgentina
| | - Juliana C. Fantinelli
- Centro de Investigaciones Cardiovasculares ¨Dr Horacio E Cingolani¨CCT‐CONICETFacultad de Ciencias MédicasUniversidad Nacional de La PlataLa PlataBuenos AiresArgentina
| | - Bernardo V. Álvarez
- Centro de Investigaciones Cardiovasculares ¨Dr Horacio E Cingolani¨CCT‐CONICETFacultad de Ciencias MédicasUniversidad Nacional de La PlataLa PlataBuenos AiresArgentina
- Present address:
Department of BiochemistryMembrane Protein Disease Research GroupUniversity of AlbertaEdmontonAlbertaT6G 2H7Canada
| | - Susana M. Mosca
- Centro de Investigaciones Cardiovasculares ¨Dr Horacio E Cingolani¨CCT‐CONICETFacultad de Ciencias MédicasUniversidad Nacional de La PlataLa PlataBuenos AiresArgentina
| | - Erik R. Swenson
- Department of Medicine, Pulmonary and Critical Care MedicineVA Puget Sound Health Care SystemUniversity of WashingtonSeattleWashingtonUSA
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16
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Wu Z, Liang J, Huang W, Jiang L, Paul C, Lin B, Zheng J, Wang Y. Prompt Graft Cooling Enhances Cardioprotection during Heart Transplantation Procedures through the Regulation of Mitophagy. Cells 2021; 10:2912. [PMID: 34831135 PMCID: PMC8616468 DOI: 10.3390/cells10112912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 10/11/2021] [Accepted: 10/22/2021] [Indexed: 11/22/2022] Open
Abstract
A complete and prompt cardiac arrest using a cold cardioplegic solution is routinely used in heart transplantation to protect the graft function. However, warm ischemic time is still inevitable during the procedure to isolate donor hearts in the clinical setting. Our knowledge of the mechanism changes prevented by cold storage, and how warm ischemia damages donor hearts, is extremely poor. The potential consequences of this inevitable warm ischemic time to grafts, and the underlying potential protective mechanism of prompt graft cooling, have been studied in order to explore an advanced graft protection strategy. To this end, a surgical procedure, including 10-15 min warm ischemic time during procurement, was performed in mouse models to mimic the clinical situation (Group I), and compared to a group of mice that had the procurement performed with prompt cooling procedures (Group II). The myocardial morphologic changes (including ultrastructure) were then assessed by electron and optical microscopy after 6 h of cold preservation. Furthermore, syngeneic heart transplantation was performed after 6 h of cold preservation to measure the graft heart function. An electron microscopy showed extensive damage, including hypercontracted myofibers with contraction bands, and damaged mitochondria that released mitochondrial contents in Group I mice, while similar patterns of damage were not observed in the mice from Group II. The results from both the electron microscopy and immunoblotting verified that cardiac mitophagy (protective mitochondrial autophagy) was present in the mice from Group II, but was absent in the mice from Group I. Moreover, the mice from Group II demonstrated faster rebeating times and higher beating scores, as compared to the mice from Group I. The pressure catheter system results indicated that the graft heart function was significantly more improved in the mice from Group II than in those from Group I, as demonstrated by the left ventricle systolic pressure (31.96 ± 6.54 vs. 26.12 ± 8.87 mmHg), the +dp/dt (815.6 ± 215.4 vs. 693.9 ± 153.8 mmHg/s), and the -dp/dt: (492.4 ± 92.98 vs. 418.5 ± 118.9 mmHg/s). In conclusion, the warm ischemic time during the procedure impaired the graft function and destroyed the activation of mitophagy. Thus, appropriate mitophagy activation has emerged as a promising therapeutic target that may be essential for graft protection and functional improvement during heart transplantation.
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Affiliation(s)
- Zhichao Wu
- Department of Cardiovascular Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China;
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA; (J.L.); (W.H.); (L.J.); (C.P.); (B.L.)
| | - Jialiang Liang
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA; (J.L.); (W.H.); (L.J.); (C.P.); (B.L.)
| | - Wei Huang
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA; (J.L.); (W.H.); (L.J.); (C.P.); (B.L.)
| | - Lin Jiang
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA; (J.L.); (W.H.); (L.J.); (C.P.); (B.L.)
| | - Christian Paul
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA; (J.L.); (W.H.); (L.J.); (C.P.); (B.L.)
| | - Bonnie Lin
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA; (J.L.); (W.H.); (L.J.); (C.P.); (B.L.)
| | - Junmeng Zheng
- Department of Cardiovascular Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China;
| | - Yigang Wang
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA; (J.L.); (W.H.); (L.J.); (C.P.); (B.L.)
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17
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Kosmach A, Roman B, Sun J, Femnou A, Zhang F, Liu C, Combs CA, Balaban RS, Murphy E. Monitoring mitochondrial calcium and metabolism in the beating MCU-KO heart. Cell Rep 2021; 37:109846. [PMID: 34686324 PMCID: PMC10461605 DOI: 10.1016/j.celrep.2021.109846] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 07/22/2021] [Accepted: 09/27/2021] [Indexed: 11/28/2022] Open
Abstract
Optical methods for measuring intracellular ions including Ca2+ revolutionized our understanding of signal transduction. However, these methods are not extensively applied to intact organs due to issues including inner filter effects, motion, and available probes. Mitochondrial Ca2+ is postulated to regulate cell energetics and death pathways that are best studied in an intact organ. Here, we develop a method to optically measure mitochondrial Ca2+ and demonstrate its validity for mitochondrial Ca2+ and metabolism using hearts from wild-type mice and mice with germline knockout of the mitochondria calcium uniporter (MCU-KO). We previously reported that germline MCU-KO hearts do not show an impaired response to adrenergic stimulation. We find that these MCU-KO hearts do not take up Ca2+, consistent with no alternative Ca2+ uptake mechanisms in the absence of MCU. This approach can address the role of mitochondrial Ca2+ to the myriad of functions attributed to alterations in mitochondrial Ca2+.
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Affiliation(s)
- Anna Kosmach
- Cardiovascular Branch, National Heart, Lung and Blood Institute, NIH, Bethesda, MD 20892, USA
| | - Barbara Roman
- Cardiovascular Branch, National Heart, Lung and Blood Institute, NIH, Bethesda, MD 20892, USA
| | - Junhui Sun
- Cardiovascular Branch, National Heart, Lung and Blood Institute, NIH, Bethesda, MD 20892, USA
| | - Armel Femnou
- Labortory of Cardiac Energetics, Systems Biology Center, National Heart, Lung and Blood Institute, NIH, Bethesda, MD 20892, USA
| | - Fan Zhang
- Transgenic Core, National Heart, Lung and Blood Institute, NIH, Bethesda, MD 20892, USA
| | - Chengyu Liu
- Transgenic Core, National Heart, Lung and Blood Institute, NIH, Bethesda, MD 20892, USA
| | - Christian A Combs
- Light Microscopy Core, National Heart, Lung and Blood Institute, NIH, Bethesda, MD 20892, USA
| | - Robert S Balaban
- Labortory of Cardiac Energetics, Systems Biology Center, National Heart, Lung and Blood Institute, NIH, Bethesda, MD 20892, USA.
| | - Elizabeth Murphy
- Cardiovascular Branch, National Heart, Lung and Blood Institute, NIH, Bethesda, MD 20892, USA.
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18
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Hamilton S, Terentyeva R, Perger F, Hernández Orengo B, Martin B, Gorr MW, Belevych AE, Clements RT, Györke S, Terentyev D. MCU overexpression evokes disparate dose-dependent effects on mito-ROS and spontaneous Ca 2+ release in hypertrophic rat cardiomyocytes. Am J Physiol Heart Circ Physiol 2021; 321:H615-H632. [PMID: 34415186 PMCID: PMC8794228 DOI: 10.1152/ajpheart.00126.2021] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 08/13/2021] [Accepted: 08/13/2021] [Indexed: 12/11/2022]
Abstract
Cardiac dysfunction in heart failure (HF) and diabetic cardiomyopathy (DCM) is associated with aberrant intracellular Ca2+ handling and impaired mitochondrial function accompanied with reduced mitochondrial calcium concentration (mito-[Ca2+]). Pharmacological or genetic facilitation of mito-Ca2+ uptake was shown to restore Ca2+ transient amplitude in DCM and HF, improving contractility. However, recent reports suggest that pharmacological enhancement of mito-Ca2+ uptake can exacerbate ryanodine receptor-mediated spontaneous sarcoplasmic reticulum (SR) Ca2+ release in ventricular myocytes (VMs) from diseased animals, increasing propensity to stress-induced ventricular tachyarrhythmia. To test whether chronic recovery of mito-[Ca2+] restores systolic Ca2+ release without adverse effects in diastole, we overexpressed mitochondrial Ca2+ uniporter (MCU) in VMs from male rat hearts with hypertrophy induced by thoracic aortic banding (TAB). Measurement of mito-[Ca2+] using genetic probe mtRCamp1h revealed that mito-[Ca2+] in TAB VMs paced at 2 Hz under β-adrenergic stimulation is lower compared with shams. Adenoviral 2.5-fold MCU overexpression in TAB VMs fully restored mito-[Ca2+]. However, it failed to improve cytosolic Ca2+ handling and reduce proarrhythmic spontaneous Ca2+ waves. Furthermore, mitochondrial-targeted genetic probes MLS-HyPer7 and OMM-HyPer revealed a significant increase in emission of reactive oxygen species (ROS) in TAB VMs with 2.5-fold MCU overexpression. Conversely, 1.5-fold MCU overexpression in TABs, that led to partial restoration of mito-[Ca2+], reduced mitochondria-derived reactive oxygen species (mito-ROS) and spontaneous Ca2+ waves. Our findings emphasize the key role of elevated mito-ROS in disease-related proarrhythmic Ca2+ mishandling. These data establish nonlinear mito-[Ca2+]/mito-ROS relationship, whereby partial restoration of mito-[Ca2+] in diseased VMs is protective, whereas further enhancement of MCU-mediated Ca2+ uptake exacerbates damaging mito-ROS emission.NEW & NOTEWORTHY Defective intracellular Ca2+ homeostasis and aberrant mitochondrial function are common features in cardiac disease. Here, we directly compared potential benefits of mito-ROS scavenging and restoration of mito-Ca2+ uptake by overexpressing MCU in ventricular myocytes from hypertrophic rat hearts. Experiments using novel mito-ROS and Ca2+ biosensors demonstrated that mito-ROS scavenging rescued both cytosolic and mito-Ca2+ homeostasis, whereas moderate and high MCU overexpression demonstrated disparate effects on mito-ROS emission, with only a moderate increase in MCU being beneficial.
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MESH Headings
- Adrenergic beta-Agonists/pharmacology
- Animals
- Arrhythmias, Cardiac/genetics
- Arrhythmias, Cardiac/metabolism
- Arrhythmias, Cardiac/pathology
- Arrhythmias, Cardiac/physiopathology
- Biosensing Techniques
- Calcium/metabolism
- Calcium Channels/genetics
- Calcium Channels/metabolism
- Calcium Signaling/drug effects
- Cells, Cultured
- Disease Models, Animal
- Heart Rate
- Hypertrophy, Left Ventricular/genetics
- Hypertrophy, Left Ventricular/metabolism
- Hypertrophy, Left Ventricular/pathology
- Hypertrophy, Left Ventricular/physiopathology
- Male
- Microscopy, Confocal
- Mitochondria, Heart/drug effects
- Mitochondria, Heart/genetics
- Mitochondria, Heart/metabolism
- Mitochondria, Heart/pathology
- Myocardial Contraction
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/pathology
- Rats, Sprague-Dawley
- Reactive Oxygen Species/metabolism
- Up-Regulation
- Ventricular Function, Left
- Ventricular Remodeling
- Rats
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Affiliation(s)
- Shanna Hamilton
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio
| | - Radmila Terentyeva
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio
| | - Fruzsina Perger
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio
| | - Benjamín Hernández Orengo
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio
| | - Benjamin Martin
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio
| | - Matthew W Gorr
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio
- College of Nursing, The Ohio State University, Columbus, Ohio
| | - Andriy E Belevych
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio
| | - Richard T Clements
- Biomedical and Pharmaceutical Sciences, University of Rhode Island, Kingston, Rhode Island
| | - Sandor Györke
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio
| | - Dmitry Terentyev
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio
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19
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Kumar A, Boovarahan SR, Prem PN, Ramanathan M, Chellappan DR, Kurian GA. Evaluating the effects of carbon monoxide releasing molecule-2 against myocardial ischemia-reperfusion injury in ovariectomized female rats. Naunyn Schmiedebergs Arch Pharmacol 2021; 394:2103-2115. [PMID: 34338837 DOI: 10.1007/s00210-021-02129-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 07/15/2021] [Indexed: 11/30/2022]
Abstract
PURPOSE Cardioprotective effect of carbon monoxide, a gasotransmitter against myocardial ischemia-reperfusion injury (I/R), is well established in preclinical studies with male rats. However, its ischemic tolerance in post-menopausal animals has not been examined due to functional perturbations at the cellular level. METHODS The protective role of carbon monoxide releasing molecule-2 (CORM-2) on myocardial I/R was studied in female Wistar rats using the Langendorff apparatus. The animals were randomly divided into normal and ovariectomized (Ovx) female rats and were maintained 2 months post-surgery. Each group was further divided into 4 subgroups (n = 6/subgroup): normal, I/R, CORM-2-control (20 μmol/L), and CORM-2-I/R. The cardiac injury was estimated via myocardial infarct size, lactate dehydrogenase, and creatine kinase levels in coronary effluent and cardiac hemodynamic indices. Mitochondrial functional activity was assessed by measuring mitochondrial electron transport chain enzyme activities, swelling behavior, mitochondrial membrane potential, and oxidative stress. RESULTS Hemodynamic indices were significantly lower in ovariectomized rat hearts than in normal rat hearts. Sixty minutes of reperfusion of ischemic heart exhibited deteriorated cardiac physiological recovery in both ovariectomized and normal groups, where prominent decline was observed in ovariectomized rat. However, preconditioning the isolated heart with CORM-2 improved hemodynamics parameters significantly in both ovariectomized and normal rat hearts challenged with I/R, but with a limited degree of protection in ovariectomized rat hearts. The protective effect of CORM-2 was further confirmed via a reduction in cardiac injury, preservation of mitochondrial enzymes, and reduction in oxidative stress in all groups. CONCLUSION CORM-2 administration significantly attenuated myocardial I/R injury in ovariectomized rat hearts by attenuating I/R-associated mitochondrial perturbations and reducing oxidative stress.
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Affiliation(s)
- Arthi Kumar
- School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, India
| | - Sri Rahavi Boovarahan
- Vascular Biology Laboratory, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, India
| | - Priyanka N Prem
- Vascular Biology Laboratory, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, India
| | - Meenakshi Ramanathan
- School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, India
| | - David Raj Chellappan
- School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, India
| | - Gino A Kurian
- Vascular Biology Laboratory, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, India.
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20
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Isei MO, Chinnappareddy N, Stevens D, Kamunde C. Anoxia-reoxygenation alters H 2O 2 efflux and sensitivity of redox centers to copper in heart mitochondria. Comp Biochem Physiol C Toxicol Pharmacol 2021; 248:109111. [PMID: 34146700 DOI: 10.1016/j.cbpc.2021.109111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 06/07/2021] [Accepted: 06/09/2021] [Indexed: 11/20/2022]
Abstract
Mitochondrial reactive oxygen species (ROS) have been implicated in organ damage caused by environmental stressors, prompting studies on the effect of oxygen deprivation and metal exposure on ROS metabolism. However, how anoxia and copper (Cu) jointly influence heart mitochondrial ROS metabolism is not understood. We used rainbow trout heart mitochondria to probe the effects of anoxia-reoxygenation and Cu on hydrogen peroxide (H2O2) emission during oxidation of palmitoylcarnitine (PC), succinate, or glutamate-malate. In addition, we examined the influence of anoxia-reoxygenation and Cu on site-specific H2O2 emission capacities and key antioxidant enzymes, glutathione peroxidase (GPx) and thioredoxin reductase (TrxR). Results showed that anoxia-reoxygenation suppressed H2O2 emission regardless of substrate type or duration of anoxia. Anoxia-reoxygenation reduced mitochondrial sensitivity to Cu during oxidation of succinate or glutamate-malate whereas high Cu concentration additively stimulated H2O2 emission in mitochondria oxidizing PC. Prolonged anoxia-reoxygenation stimulated H2O2 emission from sites OF and IF, inhibited emission from sites IQ, IIF and IIIQo, and disparately altered the sensitivity of the sites to Cu. Interestingly, anoxia-reoxygenation increased GPx and TrxR activities, more prominently when reoxygenation followed a short duration of anoxia. Cu did not alter GPx but reduced TrxR activity in normoxic and anoxic-reoxygenated mitochondria. Overall, our study revealed potential mechanisms that may reduce oxidative damage associated with anoxia-reoxygenation and Cu exposure in heart mitochondria. The increased and decreased H2O2 emission from NADH/NAD+ and QH2/Q isopotential sites, respectively, may represent a balance between H2O2 required for oxygen deprivation-induced signaling and prevention of ROS burst associated with anoxia-reoxygenation.
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Affiliation(s)
- Michael O Isei
- Department of Biomedical Sciences, Atlantic Veterinary College, University of Prince Edward Island, 550 University Avenue, Charlottetown C1A 4P3, PE, Canada
| | - Nirmala Chinnappareddy
- Department of Biomedical Sciences, Atlantic Veterinary College, University of Prince Edward Island, 550 University Avenue, Charlottetown C1A 4P3, PE, Canada
| | - Don Stevens
- Department of Biomedical Sciences, Atlantic Veterinary College, University of Prince Edward Island, 550 University Avenue, Charlottetown C1A 4P3, PE, Canada
| | - Collins Kamunde
- Department of Biomedical Sciences, Atlantic Veterinary College, University of Prince Edward Island, 550 University Avenue, Charlottetown C1A 4P3, PE, Canada.
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21
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Ye Y, Cai Y, Xia E, Shi K, Jin Z, Chen H, Xia F, Xia Y, Papadimos TJ, Xu X, Liu L, Wang Q. Apelin-13 Reverses Bupivacaine-Induced Cardiotoxicity via the Adenosine Monophosphate-Activated Protein Kinase Pathway. Anesth Analg 2021; 133:1048-1059. [PMID: 34524989 DOI: 10.1213/ane.0000000000005692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Cardiotoxicity can be induced by the commonly used amide local anesthetic, bupivacaine. Bupivacaine can inhibit protein kinase B (AKT) phosphorylation and activated adenosine monophosphate-activated protein kinase alpha (AMPKα). It can decouple mitochondrial oxidative phosphorylation and enhance reactive oxygen species (ROS) production. Apelin enhances the phosphatidylinositol 3-kinase (PI3K)/AKT and AMPK/acetyl-CoA carboxylase (ACC) pathways, promotes the complete fatty acid oxidation in the heart, and reduces the release of ROS. In this study, we examined whether exogenous (Pyr1) apelin-13 could reverse bupivacaine-induced cardiotoxicity. METHODS We used the bupivacaine-induced inhibition model in adult male Sprague Dawley (SD) rats (n = 48) and H9c2 cardiomyocyte cell cultures to explore the role of apelin-13 in the reversal of bupivacaine cardiotoxicity, and its possible mechanism of action. AMPKα, ACC, carnitine palmitoyl transferase (CPT), PI3K, AKT, superoxide dismutase 1 (SOD1), and nicotinamide adenine dinucleotide phosphate (NADPH) oxidase (p47-phox) were quantified. Changes in mitochondrial ultrastructure were examined, and mitochondrial DNA, cell viability, ROS release, oxygen consumption rate (OCR) were determined. RESULTS Apelin-13 reduced bupivacaine-induced mitochondrial DNA lesions in SD rats (P < .001), while increasing the expression of AMPKα (P = .007) and PI3K (P = .002). Furthermore, apelin-13 blocked bupivacaine-induced depolarization of the mitochondrial membrane potential (P = .019) and the bupivacaine-induced increases in ROS (P = .001). Also, the AMPK pathway was activated by bupivacaine as well as apelin-13 (P = .002) in H9c2 cardiomyocytes. Additionally, the reduction in the PI3K expression by bupivacaine was mitigated by apelin-13 in H9c2 cardiomyocytes (P = .001). While the aforementioned changes induced by bupivacaine were not abated by apelin-13 after pretreatment with AMPK inhibitor compound C; the bupivacaine-induced changes were still mitigated by apelin-13, even when pretreated with PI3K inhibitor-LY294002. CONCLUSIONS Apelin-13 treatment reduced bupivacaine-induced oxidative stress, attenuated mitochondrial morphological changes and mitochondrial DNA damage, enhanced mitochondrial energy metabolism, and ultimately reversed bupivacaine-induced cardiotoxicity. Our results suggest a role for the AMPK in apelin-13 reversal of bupivacaine-induced cardiotoxicity.
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Affiliation(s)
| | | | - Erjie Xia
- Department of Thyroid & Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | | | | | | | | | - Yun Xia
- Department of Anesthesiology, Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Thomas J Papadimos
- Department of Anesthesiology, Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Xuzhong Xu
- From the Department of Anesthesiology
- Department of Thyroid & Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- Department of Anesthesiology, Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Le Liu
- From the Department of Anesthesiology
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22
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Morio A, Tsutsumi R, Kondo T, Miyoshi H, Kato T, Narasaki S, Satomi S, Nakaya E, Kuroda M, Sakaue H, Kitamura T, Tsutsumi YM. Leucine induces cardioprotection in vitro by promoting mitochondrial function via mTOR and Opa-1 signaling. Nutr Metab Cardiovasc Dis 2021; 31:2979-2986. [PMID: 34362635 DOI: 10.1016/j.numecd.2021.06.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 06/28/2021] [Accepted: 06/30/2021] [Indexed: 01/30/2023]
Abstract
BACKGROUND AND AIMS Coronary heart disease is a major global health concern. Further, severity of this condition is greatly influenced by myocardial ischemia/reperfusion (I/R) injury. Branched-chain amino acids (BCAAs) have cardioprotective effects against I/R via mammalian target of rapamycin (mTOR) activity, wherein Leu is considered to particularly regulate mTOR activation. However, the mechanism underlying cardioprotective effects of Leu via mTOR activity is not fully elucidated. Here, we aimed to study the signaling pathway of cardioprotection and mitochondrial function induced by Leu treatment. METHODS AND RESULTS Cardiac myocytes isolated from adult male Wistar rats were incubated and exposed to simulated I/R (SI/R) injury by replacing the air content. Cardiac myocytes were treated with Leu and subsequently, their survival rate was calculated. To elucidate the signaling pathway and mitochondrial function, immunoblots and mitochondrial permeability transition pore were examined. Cell survival rate was decreased with SI/R but improved by 160 μM Leu (38.5 ± 3.6% vs. 64.5 ± 4.2%, respectively, p < 0.001). Although rapamycin (mTOR inhibitor) prevented this cardioprotective effect induced by Leu, wortmannin (PI3K inhibitor) did not interfere with this effect. In addition, we indicated that overexpression of Opa-1 and mitochondrial function are ameliorated via Leu-induced mitochondrial biogenesis. In contrast, knockdown of Opa-1 suppressed Leu-induced cardioprotection. CONCLUSION Leu treatment is critical in rendering a cardioprotective effect exhibited by BCAAs via mTOR signaling. Furthermore, Leu improved mitochondrial function.
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Affiliation(s)
- Atsushi Morio
- Department of Anesthesiology and Critical Care, Hiroshima University, Hiroshima, Japan
| | - Rie Tsutsumi
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University, Tokushima, Japan
| | - Takashi Kondo
- Department of Anesthesiology and Critical Care, Hiroshima University, Hiroshima, Japan
| | - Hirotsugu Miyoshi
- Department of Anesthesiology and Critical Care, Hiroshima University, Hiroshima, Japan
| | - Takahiro Kato
- Department of Anesthesiology and Critical Care, Hiroshima University, Hiroshima, Japan
| | - Soshi Narasaki
- Department of Anesthesiology and Critical Care, Hiroshima University, Hiroshima, Japan
| | - Shiho Satomi
- Department of Anesthesiology and Critical Care, Hiroshima University, Hiroshima, Japan
| | - Erika Nakaya
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University, Tokushima, Japan
| | - Masashi Kuroda
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University, Tokushima, Japan
| | - Hiroshi Sakaue
- Department of Nutrition and Metabolism, Institute of Biomedical Sciences, Tokushima University, Tokushima, Japan
| | - Tadahiro Kitamura
- Laboratory of Metabolic Signal, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Japan
| | - Yasuo M Tsutsumi
- Department of Anesthesiology and Critical Care, Hiroshima University, Hiroshima, Japan.
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23
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Barış VÖ, Dinçsoy AB, Gedikli E, Zırh S, Müftüoğlu S, Erdem A. Empagliflozin Significantly Prevents the Doxorubicin-induced Acute Cardiotoxicity via Non-antioxidant Pathways. Cardiovasc Toxicol 2021; 21:747-758. [PMID: 34089496 DOI: 10.1007/s12012-021-09665-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 05/29/2021] [Indexed: 01/28/2023]
Abstract
Empagliflozin (EMPA) is a SGLT-2 inhibitor that has positive effects on cardiovascular outcomes. In this study, we aim to evaluate the possible protective effects of EMPA against doxorubicin (DOX)-induced acute cardiotoxicity. Non-diabetic Sprague-Dawley rats were randomized into four groups. The control group received serum physiologic (1 ml), the EMPA group received EMPA, the DOX group was administered cumulatively 18 mg/kg body weight DOX. The DOX+EMPA group was administered DOX and EMPA. In the DOX group, LVDED (P < 0.05) and LVSED (P < 0.01), QTc interval (P < 0.001), the ratio of karyolysis and karyorrhexis (P < 0.001) and infiltrative cell proliferation (P < 0.001) were found to be higher than; EF, FS and normal cell morphology were lower than the control group (P < 0.001). In the DOX+EMPA group, LVEDD (P < 0.05) and LVESD (P < 0.01) values, QTc interval (P < 0.001), karyolysis and karyorrhexis ratios (P < 0.001) and infiltrative cell proliferation were lower (P < 0.01); normal cell morphology and EF were higher compared to the DOX group (P < 0.001). Our results showed that empagliflozin significantly ameliorated DOX-induced acute cardiotoxicity.
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Affiliation(s)
- Veysel Özgür Barış
- Department of Cardiology, Dr. Ersin Arslan Research and Education Hospital, Gaziantep, Turkey.
- Department of Physiology, Faculty of Medicine, Hacettepe University, School of Medicine, Sihhiye, Ankara, Turkey.
| | - Adnan Berk Dinçsoy
- Department of Physiology, Faculty of Medicine, Hacettepe University, School of Medicine, Sihhiye, Ankara, Turkey
| | - Esra Gedikli
- Department of Physiology, Faculty of Medicine, Hacettepe University, School of Medicine, Sihhiye, Ankara, Turkey
| | - Selim Zırh
- Department of Histology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Sevda Müftüoğlu
- Department of Histology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Ayşen Erdem
- Department of Physiology, Faculty of Medicine, Hacettepe University, School of Medicine, Sihhiye, Ankara, Turkey
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24
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Badi R. Acylated Ghrelin Attenuates l-Thyroxin-induced Cardiac Damage in Rats by Antioxidant and Anti-inflammatory Effects and Downregulating Components of the Cardiac Renin-angiotensin System. J Cardiovasc Pharmacol 2021; 78:422-436. [PMID: 34132689 DOI: 10.1097/fjc.0000000000001084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 05/26/2021] [Indexed: 11/26/2022]
Abstract
ABSTRACT This study investigated the protective effect of acylated ghrelin (AG) against l-thyroxin (l-Thy)-induced cardiac damage in rats and examined possible mechanisms. Male rats were divided into five intervention groups of 12 rats/group: control, control + AG, l-Thy, l-Thy + AG, and l-Thy + AG + [D-Lys3]-GHRP-6 (AG antagonist). l-Thy significantly reduced the levels of AG and des-acyl ghrelin and the AG to des-acyl ghrelin ratio. Administration of AG to l-Thy-treated rats reduced cardiac weights and levels of reactive oxygen species and preserved the function and structure of the left ventricle. In addition, AG also reduced the protein levels of cleaved caspase-3 and cytochrome c and prevented mitochondrial permeability transition pore opening. In the left ventricle of both control + AG-treated and l-Thy + AG-treated rats, AG significantly increased left ventricular levels of manganese superoxide dismutase (SOD2), total glutathione (GSH), and Bcl2. It also reduced the levels of malondialdehyde, tumor necrosis factor-α (TNF-α), interleukin-6, and Bax and the nuclear activity of nuclear factor-kappa B. Concomitantly, in both treated groups, AG reduced the mRNA and protein levels of NADPH oxidase 1, angiotensin (Ang) II type 1 receptor, and Ang-converting enzyme 2. All the beneficial effects of AG in l-Thy-treated rats were prevented by the coadministration of [D-Lys3]-GHRP-6, a selective growth hormone secretagogue receptor subtype 1a antagonist. In conclusion, AG protects against hyperthyroidism-induced cardiac hypertrophy and damage, which is mainly due to its antioxidant and anti-inflammatory potentials and requires the activation of GHS-R1a.
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MESH Headings
- Acylation
- Animals
- Anti-Inflammatory Agents/pharmacology
- Antioxidants/pharmacology
- Disease Models, Animal
- Ghrelin/analogs & derivatives
- Ghrelin/metabolism
- Ghrelin/pharmacology
- Hyperthyroidism/chemically induced
- Hyperthyroidism/metabolism
- Hypertrophy, Left Ventricular/chemically induced
- Hypertrophy, Left Ventricular/metabolism
- Hypertrophy, Left Ventricular/pathology
- Hypertrophy, Left Ventricular/prevention & control
- Inflammation Mediators/metabolism
- Male
- Mitochondria, Heart/drug effects
- Mitochondria, Heart/metabolism
- Mitochondria, Heart/pathology
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/pathology
- Oxidative Stress/drug effects
- Rats, Sprague-Dawley
- Reactive Nitrogen Species/metabolism
- Renin-Angiotensin System/drug effects
- Thyroxine
- Ventricular Function, Left/drug effects
- Rats
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Affiliation(s)
- Rehab Badi
- Department of Physiology, College of Medicine, King Khalid University, Abha, Saudi Arabia ; and
- Department of Physiology, Faculty of Medicine, University of Khartoum, Khartoum, Sudan
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25
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Apaijai N, Jinawong K, Singhanat K, Jaiwongkam T, Kerdphoo S, Chattipakorn SC, Chattipakorn N. Necrostatin-1 reduces cardiac and mitochondrial dysfunction in prediabetic rats. J Endocrinol 2021; 251:27-39. [PMID: 34265741 DOI: 10.1530/joe-21-0134] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 07/15/2021] [Indexed: 11/08/2022]
Abstract
High-fat diet (HFD) consumption induces prediabetes and left ventricular dysfunction through many pathways including cell death pathway like necroptosis. Although the benefit of necroptosis inhibitor (necrostatin-1 or Nec-1) in the brain of prediabetic rats was shown, the effects of Nec-1 on cardiac autonomic function, blood pressure, cardiac function, along with its mechanistic insight have not been investigated. Male Wistar rats were fed with either a normal diet (n = 8) or HFD (n = 24) for 12 weeks to induce prediabetes. Prediabetic rats were randomly assigned into three interventional groups (n = 8/group): (1) vehicle, (2) Nec-1 (1.65 mg/kg, sc injection), and (3) metformin (300 mg/kg, oral gavage feeding). Treatments lasted for 8 weeks. Normal saline was given to normal diet-fed rats and vehicle group. Metabolic parameters, cardiac function and biochemical parameters were assessed. Prediabetic rats exhibited peripheral metabolic impairment as indicated by increased body weight, hyperinsulinemia with euglycemia, and dyslipidemia. Prediabetic rats also had cardiac autonomic imbalance, high blood pressure, and cardiac dysfunction, together with cardiac mitochondrial dysfunction, mitochondrial dynamic imbalance, and increased necroptosis and apoptosis. Treatment with Nec-1 did not affect peripheral metabolic parameters, however, it effectively reduced cardiac autonomic imbalance, blood pressure, and cardiac dysfunction via reducing cardiac inflammation, necroptosis, mitochondrial dysfunction, and increased mitochondrial fusion. Treatment with metformin reduced peripheral metabolic impairment and cardiac dysfunction via decreased cardiac mitochondrial dysfunction, mitochondrial dynamic imbalance, and apoptosis. In summary, Nec-1 directly suppressed necroptosis, cardiac mitochondrial dysfunction, and increased mitochondrial fusion independent of peripheral metabolic function, leading to an improved cardiac function in prediabetic rats.
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Affiliation(s)
- Nattayaporn Apaijai
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Kewarin Jinawong
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Kodchanan Singhanat
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Thidarat Jaiwongkam
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
| | - Sasiwan Kerdphoo
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
| | - Siriporn C Chattipakorn
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
- Department of Oral Biology and Diagnostic Sciences, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand
| | - Nipon Chattipakorn
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
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26
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Croteau D, Luptak I, Chambers JM, Hobai I, Panagia M, Pimentel DR, Siwik DA, Qin F, Colucci WS. Effects of Sodium-Glucose Linked Transporter 2 Inhibition With Ertugliflozin on Mitochondrial Function, Energetics, and Metabolic Gene Expression in the Presence and Absence of Diabetes Mellitus in Mice. J Am Heart Assoc 2021; 10:e019995. [PMID: 34169737 PMCID: PMC8403324 DOI: 10.1161/jaha.120.019995] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 03/22/2021] [Indexed: 12/11/2022]
Abstract
Background Inhibitors of the sodium-glucose linked transporter 2 improve cardiovascular outcomes in patients with or without type 2 diabetes mellitus, but the effects on cardiac energetics and mitochondrial function are unknown. We assessed the effects of sodium-glucose linked transporter 2 inhibition on mitochondrial function, high-energy phosphates, and genes encoding mitochondrial proteins in hearts of mice with and without diet-induced diabetic cardiomyopathy. Methods and Results Mice fed a control diet or a high-fat, high-sucrose diet received ertugliflozin mixed with the diet (0.5 mg/g of diet) for 4 months. Isolated mitochondria were assessed for functional capacity. High-energy phosphates were assessed by 31P nuclear magnetic resonance spectroscopy concurrently with contractile performance in isolated beating hearts. The high-fat, high-sucrose diet caused myocardial hypertrophy, diastolic dysfunction, mitochondrial dysfunction, and impaired energetic response, all of which were prevented by ertugliflozin. With both diets, ertugliflozin caused supernormalization of contractile reserve, as measured by rate×pressure product at high work demand. Likewise, the myocardial gene sets most enriched by ertugliflozin were for oxidative phosphorylation and fatty acid metabolism, both of which were enriched independent of diet. Conclusions Ertugliflozin not only prevented high-fat, high-sucrose-induced pathological cardiac remodeling, but improved contractile reserve and induced the expression of oxidative phosphorylation and fatty acid metabolism gene sets independent of diabetic status. These effects of sodium-glucose linked transporter 2 inhibition on cardiac energetics and metabolism may contribute to improved structure and function in cardiac diseases associated with mitochondrial dysfunction, such as heart failure.
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MESH Headings
- Animals
- Bridged Bicyclo Compounds, Heterocyclic/pharmacology
- Diabetes Mellitus, Experimental/complications
- Diabetes Mellitus, Experimental/drug therapy
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Type 2/complications
- Diabetes Mellitus, Type 2/drug therapy
- Diabetes Mellitus, Type 2/metabolism
- Diabetic Cardiomyopathies/etiology
- Diabetic Cardiomyopathies/metabolism
- Diabetic Cardiomyopathies/physiopathology
- Diabetic Cardiomyopathies/prevention & control
- Diet, High-Fat
- Dietary Sucrose
- Energy Metabolism/drug effects
- Energy Metabolism/genetics
- Gene Expression Regulation
- Hypertrophy, Left Ventricular/etiology
- Hypertrophy, Left Ventricular/metabolism
- Hypertrophy, Left Ventricular/physiopathology
- Hypertrophy, Left Ventricular/prevention & control
- Male
- Mice, Inbred C57BL
- Mitochondria, Heart/drug effects
- Mitochondria, Heart/genetics
- Mitochondria, Heart/metabolism
- Myocardial Contraction/drug effects
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/metabolism
- Oxidative Stress/drug effects
- Sodium-Glucose Transporter 2 Inhibitors/pharmacology
- Ventricular Dysfunction, Left/etiology
- Ventricular Dysfunction, Left/metabolism
- Ventricular Dysfunction, Left/physiopathology
- Ventricular Dysfunction, Left/prevention & control
- Ventricular Function, Left/drug effects
- Ventricular Remodeling/drug effects
- Mice
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Affiliation(s)
- Dominique Croteau
- Cardiovascular Medicine Section and Myocardial Biology UnitBoston University School of MedicineBostonMA
| | - Ivan Luptak
- Cardiovascular Medicine Section and Myocardial Biology UnitBoston University School of MedicineBostonMA
| | - Jordan M. Chambers
- Cardiovascular Medicine Section and Myocardial Biology UnitBoston University School of MedicineBostonMA
| | - Ion Hobai
- Cardiovascular Medicine Section and Myocardial Biology UnitBoston University School of MedicineBostonMA
| | - Marcello Panagia
- Cardiovascular Medicine Section and Myocardial Biology UnitBoston University School of MedicineBostonMA
| | - David R. Pimentel
- Cardiovascular Medicine Section and Myocardial Biology UnitBoston University School of MedicineBostonMA
| | - Deborah A. Siwik
- Cardiovascular Medicine Section and Myocardial Biology UnitBoston University School of MedicineBostonMA
| | - Fuzhong Qin
- Cardiovascular Medicine Section and Myocardial Biology UnitBoston University School of MedicineBostonMA
| | - Wilson S. Colucci
- Cardiovascular Medicine Section and Myocardial Biology UnitBoston University School of MedicineBostonMA
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27
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Chen L, Luo G, Liu Y, Lin H, Zheng C, Xie D, Zhu Y, Chen L, Huang X, Hu D, Xie J, Chen Z, Liao W, Bin J, Wang Q, Liao Y. Growth differentiation factor 11 attenuates cardiac ischemia reperfusion injury via enhancing mitochondrial biogenesis and telomerase activity. Cell Death Dis 2021; 12:665. [PMID: 34215721 PMCID: PMC8253774 DOI: 10.1038/s41419-021-03954-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 06/17/2021] [Accepted: 06/18/2021] [Indexed: 12/28/2022]
Abstract
It has been reported that growth differentiation factor 11 (GDF11) protects against myocardial ischemia/reperfusion (IR) injury, but the underlying mechanisms have not been fully clarified. Considering that GDF11 plays a role in the aging/rejuvenation process and that aging is associated with telomere shortening and cardiac dysfunction, we hypothesized that GDF11 might protect against IR injury by activating telomerase. Human plasma GDF11 levels were significantly lower in acute coronary syndrome patients than in chronic coronary syndrome patients. IR mice with myocardial overexpression GDF11 (oe-GDF11) exhibited a significantly smaller myocardial infarct size, less cardiac remodeling and dysfunction, fewer apoptotic cardiomyocytes, higher telomerase activity, longer telomeres, and higher ATP generation than IR mice treated with an adenovirus carrying a negative control plasmid. Furthermore, mitochondrial biogenesis-related proteins and some antiapoptotic proteins were significantly upregulated by oe-GDF11. These cardioprotective effects of oe-GDF11 were significantly antagonized by BIBR1532, a specific telomerase inhibitor. Similar effects of oe-GDF11 on apoptosis and mitochondrial energy biogenesis were observed in cultured neonatal rat cardiomyocytes, whereas GDF11 silencing elicited the opposite effects to oe-GDF11 in mice. We concluded that telomerase activation by GDF11 contributes to the alleviation of myocardial IR injury through enhancing mitochondrial biogenesis and suppressing cardiomyocyte apoptosis.
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MESH Headings
- Aminobenzoates/pharmacology
- Animals
- Apoptosis
- Bone Morphogenetic Proteins/genetics
- Bone Morphogenetic Proteins/metabolism
- Case-Control Studies
- Cells, Cultured
- Disease Models, Animal
- Enzyme Inhibitors/pharmacology
- Growth Differentiation Factors/genetics
- Growth Differentiation Factors/metabolism
- Humans
- Male
- Mice, Inbred C57BL
- Mitochondria, Heart/drug effects
- Mitochondria, Heart/enzymology
- Mitochondria, Heart/genetics
- Mitochondria, Heart/pathology
- Myocardial Infarction/enzymology
- Myocardial Infarction/genetics
- Myocardial Infarction/pathology
- Myocardial Infarction/prevention & control
- Myocardial Reperfusion Injury/enzymology
- Myocardial Reperfusion Injury/genetics
- Myocardial Reperfusion Injury/pathology
- Myocardial Reperfusion Injury/prevention & control
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/enzymology
- Myocytes, Cardiac/pathology
- Naphthalenes/pharmacology
- Organelle Biogenesis
- Rats
- Signal Transduction
- Telomerase/antagonists & inhibitors
- Telomerase/metabolism
- Mice
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Affiliation(s)
- Lin Chen
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Guangjin Luo
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Yameng Liu
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Hairuo Lin
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Cankun Zheng
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Dongxiao Xie
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Yingqi Zhu
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Lu Chen
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Xiaoxia Huang
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Donghong Hu
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Jiahe Xie
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Zhenhuan Chen
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Wangjun Liao
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China
| | - Jianping Bin
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
- National Clinical Research Center of Kidney Disease, Guangdong Provincial Institute of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Qiancheng Wang
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Yulin Liao
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Shock and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
- National Clinical Research Center of Kidney Disease, Guangdong Provincial Institute of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
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28
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Sen P, Gupta K, Kumari A, Singh G, Pandey S, Singh R. Wnt/β-Catenin Antagonist Pyrvinium Exerts Cardioprotective Effects in Polymicrobial Sepsis Model by Attenuating Calcium Dyshomeostasis and Mitochondrial Dysfunction. Cardiovasc Toxicol 2021; 21:517-532. [PMID: 33723718 DOI: 10.1007/s12012-021-09643-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 03/01/2021] [Indexed: 01/22/2023]
Abstract
Calcium dysregulation and mitochondrial dysfunction are key elements in the development of sepsis-induced cardiac dysfunction. Evidences have suggested that inhibition of Wnt/β-Catenin signalling prevents cardiac dysfunction and remodelling in surgical, hypertension and pressure overload models. The present study investigated the effects of Wnt/β-Catenin inhibitor on calcium overload and mitochondrial dysfunction in rat sepsis model of cardiomyopathy. Induction of sepsis by cecal ligation puncture (CLP) resulted in the up-regulation of cardiac β-catenin transcriptional levels and cardiac dysfunction depicted by increased serum lactate dehydrogenase, CK-MB levels reduced maximum (dp/dt max.) and minimum developed pressure (dp/dt min.), increased LVEsDP and relaxation constant tau values. Moreover, oxidative and inflammatory stress, immune cell infiltration, increased myeloperoxidase activity, enhanced caspase-3 activity and fibronectin protein levels were observed in septic rat's heart. Also, septic rat's heart displayed mitochondrial dysfunction due to mPTP opening, increased calcium up-regulation in left ventricular apex tissues and whole heart, increased collagen staining, necrosis and structural damage. Pre-treatment with Wnt/β-Catenin antagonist attenuated sepsis-induced serum and tissue biochemical changes, cardiac dysfunction and structural alterations by inhibiting mitochondrial mPTP opening and restricting calcium overloading in cardiac tissue.
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Affiliation(s)
- Pallavi Sen
- Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, India
| | - Kirti Gupta
- Department of Pharmacy, Maharishi Markandeshwar Deemed to be University, Mullana, Ambala, Haryana, India
| | - Abha Kumari
- Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, India
| | - Gaaminepreet Singh
- Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, India.
| | - Sneha Pandey
- Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, India
| | - Ragini Singh
- Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, India
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29
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Ikeda G, Matoba T, Ishikita A, Nagaoka K, Nakano K, Koga J, Tsutsui H, Egashira K. Nanoparticle-Mediated Simultaneous Targeting of Mitochondrial Injury and Inflammation Attenuates Myocardial Ischemia-Reperfusion Injury. J Am Heart Assoc 2021; 10:e019521. [PMID: 34056918 PMCID: PMC8477875 DOI: 10.1161/jaha.120.019521] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 03/22/2021] [Indexed: 12/22/2022]
Abstract
Background The opening of mitochondrial permeability transition pore and inflammation cooperatively progress myocardial ischemia-reperfusion (IR) injury, which hampers therapeutic effects of primary reperfusion therapy for acute myocardial infarction. We examined the therapeutic effects of nanoparticle-mediated medicine that simultaneously targets mitochondrial permeability transition pore and inflammation during IR injury. Methods and Results We used mice lacking cyclophilin D (CypD, a key molecule for mitochondrial permeability transition pore opening) and C-C chemokine receptor 2 and found that CypD contributes to the progression of myocardial IR injury at early time point (30-45 minutes) after reperfusion, whereas C-C chemokine receptor 2 contributes to IR injury at later time point (45-60 minutes) after reperfusion. Double deficiency of CypD and C-C chemokine receptor 2 enhanced cardioprotection compared with single deficiency regardless of the durations of ischemia. Deletion of C-C chemokine receptor 2, but not deletion of CypD, decreased the recruitment of Ly-6Chigh monocytes after myocardial IR injury. In CypD-knockout mice, administration of interleukin-1β blocking antibody reduced the recruitment of these monocytes. Combined administration of polymeric nanoparticles composed of poly-lactic/glycolic acid and encapsulating nanoparticles containing cyclosporine A or pitavastatin, which inhibit mitochondrial permeability transition pore opening and monocyte-mediated inflammation, respectively, augmented the cardioprotection as compared with single administration of nanoparticles containing cyclosporine A or pitavastatin after myocardial IR injury. Conclusions Nanoparticle-mediated simultaneous targeting of mitochondrial injury and inflammation could be a novel therapeutic strategy for the treatment of myocardial IR injury.
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MESH Headings
- Animals
- Anti-Inflammatory Agents/chemistry
- Anti-Inflammatory Agents/pharmacology
- Peptidyl-Prolyl Isomerase F/genetics
- Peptidyl-Prolyl Isomerase F/metabolism
- Cyclosporine/chemistry
- Cyclosporine/pharmacology
- Disease Models, Animal
- Drug Carriers
- Drug Combinations
- Drug Compounding
- Inflammation Mediators/metabolism
- Interleukin-1beta/metabolism
- Male
- Mice, Inbred C57BL
- Mice, Knockout
- Mitochondria, Heart/drug effects
- Mitochondria, Heart/metabolism
- Mitochondria, Heart/pathology
- Mitochondrial Permeability Transition Pore/antagonists & inhibitors
- Mitochondrial Permeability Transition Pore/metabolism
- Myocardial Reperfusion Injury/genetics
- Myocardial Reperfusion Injury/metabolism
- Myocardial Reperfusion Injury/pathology
- Myocardial Reperfusion Injury/prevention & control
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/pathology
- NLR Family, Pyrin Domain-Containing 3 Protein/metabolism
- Nanoparticles
- Polylactic Acid-Polyglycolic Acid Copolymer/chemistry
- Quinolines/chemistry
- Quinolines/pharmacology
- Receptors, CCR2/genetics
- Receptors, CCR2/metabolism
- Time Factors
- Mice
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Affiliation(s)
- Gentaro Ikeda
- Department of Cardiovascular MedicineKyushu University Graduate School of Medical SciencesFukuokaJapan
- Department of MedicineStanford Cardiovascular Institute and Division of Cardiovascular MedicineStanford University School of MedicineCA
| | - Tetsuya Matoba
- Department of Cardiovascular MedicineKyushu University Graduate School of Medical SciencesFukuokaJapan
| | - Ayako Ishikita
- Department of Cardiovascular MedicineKyushu University Graduate School of Medical SciencesFukuokaJapan
| | - Kazuhiro Nagaoka
- Department of Cardiovascular MedicineKyushu University Graduate School of Medical SciencesFukuokaJapan
| | - Kaku Nakano
- Department of Cardiovascular ResearchDevelopment, and Translational MedicineCenter for Disruptive Cardiovascular InnovationKyushu UniversityFukuokaJapan
| | - Jun‐ichiro Koga
- Department of Cardiovascular MedicineKyushu University Graduate School of Medical SciencesFukuokaJapan
| | - Hiroyuki Tsutsui
- Department of Cardiovascular MedicineKyushu University Graduate School of Medical SciencesFukuokaJapan
| | - Kensuke Egashira
- Department of Cardiovascular ResearchDevelopment, and Translational MedicineCenter for Disruptive Cardiovascular InnovationKyushu UniversityFukuokaJapan
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30
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Papatheodorou I, Galatou E, Panagiotidis GD, Ravingerová T, Lazou A. Cardioprotective Effects of PPARβ/δ Activation against Ischemia/Reperfusion Injury in Rat Heart Are Associated with ALDH2 Upregulation, Amelioration of Oxidative Stress and Preservation of Mitochondrial Energy Production. Int J Mol Sci 2021; 22:6399. [PMID: 34203800 PMCID: PMC8232596 DOI: 10.3390/ijms22126399] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/07/2021] [Accepted: 06/10/2021] [Indexed: 12/15/2022] Open
Abstract
Accumulating evidence support the cardioprotective properties of the nuclear receptor peroxisome proliferator activated receptor β/δ (PPARβ/δ); however, the underlying mechanisms are not yet fully elucidated. The aim of the study was to further investigate the mechanisms underlying PPARβ/δ-mediated cardioprotection in the setting of myocardial ischemia/reperfusion (I/R). For this purpose, rats were treated with PPARβ/δ agonist GW0742 and/or antagonist GSK0660 in vivo and hearts were subjected to ex vivo global ischemia followed by reperfusion. PPARβ/δ activation improved left ventricular developed pressure recovery, reduced infarct size (IS) and incidence of reperfusion-induced ventricular arrhythmias while it also up-regulated superoxide dismutase 2, catalase and uncoupling protein 3 resulting in attenuation of oxidative stress as evidenced by the reduction in 4-hydroxy-2-nonenal protein adducts and protein carbonyl formation. PPARβ/δ activation also increased both mRNA expression and enzymatic activity of aldehyde dehydrogenase 2 (ALDH2); inhibition of ALDH2 abrogated the IS limiting effect of PPARβ/δ activation. Furthermore, upregulation of PGC-1α and isocitrate dehydrogenase 2 mRNA expression, increased citrate synthase activity as well as mitochondrial ATP content indicated improvement in mitochondrial content and energy production. These data provide new mechanistic insight into the cardioprotective properties of PPARβ/δ in I/R pointing to ALDH2 as a direct downstream target and suggesting that PPARβ/δ activation alleviates myocardial I/R injury through coordinated stimulation of the antioxidant defense of the heart and preservation of mitochondrial function.
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Affiliation(s)
- Ioanna Papatheodorou
- Laboratory of Animal Physiology, Department of Zoology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (I.P.); (E.G.); (G.-D.P.)
| | - Eleftheria Galatou
- Laboratory of Animal Physiology, Department of Zoology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (I.P.); (E.G.); (G.-D.P.)
| | - Georgios-Dimitrios Panagiotidis
- Laboratory of Animal Physiology, Department of Zoology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (I.P.); (E.G.); (G.-D.P.)
| | - Táňa Ravingerová
- Institute for Heart Research, Centre of Experimental Medicine, Slovak Academy of Sciences, 9 Dúbravská cesta, 84104 Bratislava, Slovakia;
| | - Antigone Lazou
- Laboratory of Animal Physiology, Department of Zoology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (I.P.); (E.G.); (G.-D.P.)
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31
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Liu M, Liu H, Feng F, Xie A, Kang G, Zhao Y, Hou CR, Zhou X, Dudley SC. Magnesium Deficiency Causes a Reversible, Metabolic, Diastolic Cardiomyopathy. J Am Heart Assoc 2021; 10:e020205. [PMID: 34096318 PMCID: PMC8477865 DOI: 10.1161/jaha.120.020205] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 04/19/2021] [Indexed: 01/01/2023]
Abstract
Background Dietary Mg intake is associated with a decreased risk of developing heart failure, whereas low circulating Mg level is associated with increased cardiovascular mortality. We investigated whether Mg deficiency alone could cause cardiomyopathy. Methods and Results C57BL/6J mice were fed with a low Mg (low-Mg, 15-30 mg/kg Mg) or a normal Mg (nl-Mg, 600 mg/kg Mg) diet for 6 weeks. To test reversibility, half of the low-Mg mice were fed then with nl-Mg diet for another 6 weeks. Low-Mg diet significantly decreased mouse serum Mg (0.38±0.03 versus 1.14±0.03 mmol/L for nl-Mg; P<0.0001) with a reciprocal increase in serum Ca, K, and Na. Low-Mg mice exhibited impaired cardiac relaxation (ratio between mitral peak early filling velocity E and longitudinal tissue velocity of the mitral anterior annulus e, 21.1±1.1 versus 15.4±0.4 for nl-Mg; P=0.011). Cellular ATP was decreased significantly in low-Mg hearts. The changes were accompanied by mitochondrial dysfunction with mitochondrial reactive oxygen species overproduction and membrane depolarization. cMyBPC (cardiac myosin-binding protein C) was S-glutathionylated in low-Mg mouse hearts. All these changes were normalized with Mg repletion. In vivo (2-(2,2,6,6-tetramethylpiperidin-1-oxyl-4-ylamino)-2-oxoethyl)triphenylphosphonium chloride treatment during low-Mg diet improved cardiac relaxation, increased ATP levels, and reduced S-glutathionylated cMyBPC. Conclusions Mg deficiency caused a reversible diastolic cardiomyopathy associated with mitochondrial dysfunction and oxidative modification of cMyBPC. In deficiency states, Mg supplementation may represent a novel treatment for diastolic heart failure.
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Affiliation(s)
- Man Liu
- Division of CardiologyDepartment of MedicineThe Lillehei Heart InstituteUniversity of Minnesota at Twin CitiesMinneapolisMN
| | - Hong Liu
- Division of CardiologyDepartment of MedicineThe Lillehei Heart InstituteUniversity of Minnesota at Twin CitiesMinneapolisMN
| | - Feng Feng
- Division of CardiologyDepartment of MedicineThe Lillehei Heart InstituteUniversity of Minnesota at Twin CitiesMinneapolisMN
| | - An Xie
- Division of CardiologyDepartment of MedicineThe Lillehei Heart InstituteUniversity of Minnesota at Twin CitiesMinneapolisMN
| | - Gyeoung‐Jin Kang
- Division of CardiologyDepartment of MedicineThe Lillehei Heart InstituteUniversity of Minnesota at Twin CitiesMinneapolisMN
| | - Yang Zhao
- Division of CardiologyDepartment of MedicineThe Lillehei Heart InstituteUniversity of Minnesota at Twin CitiesMinneapolisMN
| | - Cody R. Hou
- Division of CardiologyDepartment of MedicineThe Lillehei Heart InstituteUniversity of Minnesota at Twin CitiesMinneapolisMN
| | - Xiaoxu Zhou
- Division of CardiologyDepartment of MedicineThe Lillehei Heart InstituteUniversity of Minnesota at Twin CitiesMinneapolisMN
| | - Samuel C. Dudley
- Division of CardiologyDepartment of MedicineThe Lillehei Heart InstituteUniversity of Minnesota at Twin CitiesMinneapolisMN
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32
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Elrashidy RA, Ibrahim SE. Cinacalcet as a surrogate therapy for diabetic cardiomyopathy in rats through AMPK-mediated promotion of mitochondrial and autophagic function. Toxicol Appl Pharmacol 2021; 421:115533. [PMID: 33848515 DOI: 10.1016/j.taap.2021.115533] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 03/26/2021] [Accepted: 04/09/2021] [Indexed: 10/21/2022]
Abstract
Decreased activity of AMP-activated protein kinase (AMPK) is implicated in the pathogenesis of diabetic cardiomyopathy (DCM). Recent evidence suggests a crosstalk between cinacalcet and AMPK activation. This study investigated the effects of cinacalcet on cardiac remodeling and dysfunction in type 2 diabetic rats (T2DM). High fat diet for 4 weeks combined with single intraperitoneal injection of streptozotocin (30 mg/kg) was used to induce type 2 diabetes in rats. Diabetic rats were either orally treated with vehicle, 5 or 10 mg/kg cinacalcet for 4 weeks. Control rats were fed standard chow diet and intraperitoneally injected with citrate buffer. T2DM rats showed lower body weight (BW), hyperglycemia and dyslipidemia, along with increased heart weight (HW) and HW/BW ratio. Masson's trichrome stained cardiac sections revealed massive fibrosis in T2DM rats. There were increased TGF-β1 and hydroxyproline levels, coupled with up-regulation of atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP) in hearts of T2DM rats. These alterations were associated with redox imbalance and impaired cardiac functions. Decreased phosphorylation of AMPK at threonine172 residue was found in T2DM hearts. Cinacalcet for 4 weeks significantly activated AMPK and alleviated cardiac remodeling and dysfunction in a dose-dependent manner, without affecting blood glucose, serum calcium and phosphorus levels. Cinacalcet increased the mitochondrial DNA content, and expressions of PGC-1α, UCP-3, beclin-1 and LC3-II/LC3-I ratio. Cinacalcet decreased the pro-apoptotic Bax, while increased the anti-apoptotic Bcl-2 in cardiac tissue of T2DM rats. These findings might highlight cinacalcet as an alternative therapy to combat the development and progression of DCM.
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MESH Headings
- AMP-Activated Protein Kinases/metabolism
- Animals
- Apoptosis/drug effects
- Autophagy/drug effects
- Cinacalcet/pharmacology
- Diabetes Mellitus, Experimental/chemically induced
- Diabetes Mellitus, Experimental/drug therapy
- Diabetes Mellitus, Experimental/enzymology
- Diabetes Mellitus, Experimental/physiopathology
- Diabetes Mellitus, Type 2/chemically induced
- Diabetes Mellitus, Type 2/drug therapy
- Diabetes Mellitus, Type 2/enzymology
- Diabetes Mellitus, Type 2/physiopathology
- Diabetic Cardiomyopathies/enzymology
- Diabetic Cardiomyopathies/etiology
- Diabetic Cardiomyopathies/physiopathology
- Diabetic Cardiomyopathies/prevention & control
- Fibrosis
- Hemodynamics/drug effects
- Male
- Mitochondria, Heart/drug effects
- Mitochondria, Heart/enzymology
- Mitochondria, Heart/pathology
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/enzymology
- Myocytes, Cardiac/pathology
- Oxidative Stress/drug effects
- Rats, Wistar
- Signal Transduction
- Streptozocin
- Ventricular Remodeling/drug effects
- Rats
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Affiliation(s)
- Rania A Elrashidy
- Biochemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt.
| | - Samah E Ibrahim
- Physiology Department, Faculty of Medicine for Girls, Al-Azhar University, Cairo, Egypt
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33
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Abstract
Atrial fibrillation (AF) is common, yet there is no preventive therapy for AF. We tested the efficacy of AMP-activated protein kinase (AMPK) activators, metformin, and aspirin, in primary prevention of AF in cardiac-specific liver kinase B1 (LKB1) knockout (KO) mouse model of AF. Incidence of spontaneous AF was significantly reduced in treated KO mice with metformin (10 mg/kg/day) (8.3% in male and 10.3% in female) and aspirin (20 mg/kg/day) (29.4% in male and 21.4% in female) compared with untreated littermates (81% in male and 67% in female) at 8 weeks (p < 0.05). Prevention of AF was associated with activation of AMPK in treated mice and thereby improvement of mitochondrial function, gap junction proteins (connexin 40/43), and intra- and inter-cellular ultrastructure in atrial myocardium. Fibrosis was significantly less in treated mice atria. Pharmacological activation of AMPK is an effective upstream therapy for the primary prevention of AF in susceptible heart. Graphical abstract.
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Affiliation(s)
- Cevher Ozcan
- Department of Medicine, Section of Cardiology, Heart and Vascular Center, University of Chicago Medical Center, Chicago, IL, USA.
- Department of Medicine, Section of Cardiology, Center for Arrhythmia Care, Heart and Vascular Center, The University of Chicago Biological Sciences Division, 5841 S. Maryland Avenue, MC 6080, Chicago, IL, 60637, USA.
| | - Gunjan Dixit
- Department of Medicine, Section of Cardiology, Heart and Vascular Center, University of Chicago Medical Center, Chicago, IL, USA
| | - Zhenping Li
- Department of Medicine, Section of Cardiology, Heart and Vascular Center, University of Chicago Medical Center, Chicago, IL, USA
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34
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Khaliulin I, Ascione R, Maslov LN, Amal H, Suleiman MS. Preconditioning or Postconditioning with 8-Br-cAMP-AM Protects the Heart against Regional Ischemia and Reperfusion: A Role for Mitochondrial Permeability Transition. Cells 2021; 10:1223. [PMID: 34067674 PMCID: PMC8155893 DOI: 10.3390/cells10051223] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 05/12/2021] [Accepted: 05/13/2021] [Indexed: 01/15/2023] Open
Abstract
The cAMP analogue 8-Br-cAMP-AM (8-Br) confers marked protection against global ischaemia/reperfusion of isolated perfused heart. We tested the hypothesis that 8-Br is also protective under clinically relevant conditions (regional ischaemia) when applied either before ischemia or at the beginning of reperfusion, and this effect is associated with the mitochondrial permeability transition pore (MPTP). 8-Br (10 μM) was administered to Langendorff-perfused rat hearts for 5 min either before or at the end of 30 min regional ischaemia. Ca2+-induced mitochondria swelling (a measure of MPTP opening) and binding of hexokinase II (HKII) to mitochondria were assessed following the drug treatment at preischaemia. Haemodynamic function and ventricular arrhythmias were monitored during ischaemia and 2 h reperfusion. Infarct size was evaluated at the end of reperfusion. 8-Br administered before ischaemia attenuated ventricular arrhythmias, improved haemodynamic function, and reduced infarct size during ischaemia/reperfusion. Application of 8-Br at the end of ischaemia protected the heart during reperfusion. 8-Br promoted binding of HKII to the mitochondria and reduced Ca2+-induced mitochondria swelling. Thus, 8-Br protects the heart when administered before regional ischaemia or at the beginning of reperfusion. This effect is associated with inhibition of MPTP via binding of HKII to mitochondria, which may underlie the protective mechanism.
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Affiliation(s)
- Igor Khaliulin
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, Hebrew University of Jerusalem, Pharmacy Building, Ein Karem, Jerusalem 91120, Israel;
- Bristol Medical School (THS), Faculty of Health Sciences, University of Bristol, Bristol Royal Infirmary, Upper Maudlin Street, Bristol BS2 8HW, UK; (R.A.); (M.S.S.)
| | - Raimondo Ascione
- Bristol Medical School (THS), Faculty of Health Sciences, University of Bristol, Bristol Royal Infirmary, Upper Maudlin Street, Bristol BS2 8HW, UK; (R.A.); (M.S.S.)
| | - Leonid N. Maslov
- Cardiology Research Institute, Tomsk National Research Medical Center, The Russian Academy of Sciences, 111 a, Kievskaya Street, 634012 Tomsk, Russia;
| | - Haitham Amal
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, Hebrew University of Jerusalem, Pharmacy Building, Ein Karem, Jerusalem 91120, Israel;
| | - M. Saadeh Suleiman
- Bristol Medical School (THS), Faculty of Health Sciences, University of Bristol, Bristol Royal Infirmary, Upper Maudlin Street, Bristol BS2 8HW, UK; (R.A.); (M.S.S.)
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35
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Tang L, Li YP, Hu J, Chen AH, Mo Y. Dexpramipexole attenuates myocardial ischemia/reperfusion injury through upregulation of mitophagy. Eur J Pharmacol 2021; 899:173962. [PMID: 33610599 DOI: 10.1016/j.ejphar.2021.173962] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 02/05/2021] [Accepted: 02/15/2021] [Indexed: 11/17/2022]
Abstract
Reperfusion causes undesirable damage to the ischemic myocardium while restoring the blood flow. In this study, we evaluated the effects of dexpramipexole (DPX) on myocardial injury induced by ischemia/reperfusion (I/R) in-vivo and the hypoxia/reoxygenation (HR) in-vitro and examined the functional mechanisms of DPX. DPX protected cells against H/R-induced mitochondrial dysfunction and prevented H/R damage. Both myocardial infarct size and tissue damage due to I/R was reduced upon DPX treatment. We discovered that DPX enhanced mitophagy in-vivo and in-vitro, which was accompanied by enhanced expression of PINK1 and Parkin. Knock-down of PINK1 and Parkin by specific siRNAs reversed DPX-induced inhibition of myocardial I/R injury. These findings suggest that DPX might protect against myocardial injury via PINK1 and Parkin.
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MESH Headings
- Animals
- Cells, Cultured
- Disease Models, Animal
- Male
- Mice, Inbred C57BL
- Mitochondria, Heart/drug effects
- Mitochondria, Heart/genetics
- Mitochondria, Heart/metabolism
- Mitochondria, Heart/ultrastructure
- Mitophagy/drug effects
- Myocardial Infarction/genetics
- Myocardial Infarction/metabolism
- Myocardial Infarction/pathology
- Myocardial Infarction/prevention & control
- Myocardial Reperfusion Injury/genetics
- Myocardial Reperfusion Injury/metabolism
- Myocardial Reperfusion Injury/pathology
- Myocardial Reperfusion Injury/prevention & control
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/ultrastructure
- Pramipexole/pharmacology
- Protein Kinases/genetics
- Protein Kinases/metabolism
- Protein Transport
- Rats, Sprague-Dawley
- Signal Transduction
- Ubiquitin-Protein Ligases/genetics
- Ubiquitin-Protein Ligases/metabolism
- Mice
- Rats
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Affiliation(s)
- Lu Tang
- Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Yun-Peng Li
- Department of Cardiology, Zhujiang Hospital of Southern Medical University, No. 253, Gongye Road, Guangzhou, 510280, China; Department of Cardiology, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, 450000, China
| | - Juan Hu
- Department of Geriatric Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Ai-Hua Chen
- Department of Cardiology, Zhujiang Hospital of Southern Medical University, No. 253, Gongye Road, Guangzhou, 510280, China.
| | - Yingli Mo
- Department of Internal Medicine, Yiyang Medical College, Yingbin Road 516, Yiyang, Hunan, 413000, China; Hunan Provincial Engineering and Technological Research Center for Prevention and Treatment of Ophthalmology and Otolaryngology Diseases with Chinese Medicine and Protecting Visual Function, Hunan University of Chinese Medicine, Changsha, Hunan, 410208, China.
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36
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Eskaf J, Cleveland WJ, Riess ML. No Direct Postconditioning Effect of Poloxamer 188 on Mitochondrial Function after Ischemia Reperfusion Injury in Rat Isolated Hearts. Int J Mol Sci 2021; 22:4879. [PMID: 34063028 PMCID: PMC8124240 DOI: 10.3390/ijms22094879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 05/02/2021] [Accepted: 05/03/2021] [Indexed: 11/17/2022] Open
Abstract
Myocardial infarction is a leading cause for morbidity and mortality worldwide. The only viable treatment for the ischemic insult is timely reperfusion, which further exacerbates myocardial injury. Maintaining mitochondrial function is crucial in preserving cardiomyocyte function in ischemia reperfusion (IR) injury. Poloxamer (P) 188 has been shown to improve cardiac IR injury by improving cellular and mitochondrial function. The aim of this study was to show if P188 postconditioning has direct protective effects on mitochondrial function in the heart. Langendorff prepared rat hearts were subjected to IR injury ex-vivo and reperfused for 10 min with 1 mM P188 vs. vehicle. Cardiac mitochondria were isolated with 1 mM P188 vs. 1 mM polyethylene glycol (PEG) vs. vehicle by differential centrifugation. Mitochondrial function was assessed by adenosine triphosphate synthesis, oxygen consumption, and calcium retention capacity. Mitochondrial function decreased significantly after ischemia and showed mild improvement with reperfusion. P188 did not improve mitochondrial function in the ex-vivo heart, and neither further P188 nor PEG induced direct mitochondrial protection after IR injury in this model.
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Affiliation(s)
- Josephine Eskaf
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN 37232, USA; (J.E.); (W.J.C.)
- Department of Anesthesiology, University Medicine Greifswald, 17475 Greifswald, Germany
| | - William J. Cleveland
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN 37232, USA; (J.E.); (W.J.C.)
| | - Matthias L. Riess
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN 37232, USA; (J.E.); (W.J.C.)
- Department of Pharmacology, Vanderbilt University, Nashville, TN 37232, USA
- Anesthesiology, TVHS VA Medical Center, Nashville, TN 37212, USA
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37
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Isei MO, Stevens D, Kamunde C. Temperature rise and copper exposure reduce heart mitochondrial reactive oxygen species scavenging capacity. Comp Biochem Physiol C Toxicol Pharmacol 2021; 243:108999. [PMID: 33556536 DOI: 10.1016/j.cbpc.2021.108999] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 01/22/2021] [Accepted: 02/01/2021] [Indexed: 12/14/2022]
Abstract
Mitochondria produce and scavenge reactive oxygen species (ROS); however, whether oxidative distress due to exogenous stress arises from excessive production or impaired scavenging remains unclear. We assessed the effect of copper (Cu) and thermal stress on kinetics of ROS (H2O2) consumption in mitochondria isolated from fish heart. Mitochondria were energized with succinate, glutamate-malate or palmitoylcarnitine (PC) and incubated with 1-25 μM Cu at 11 (control) and 23 °C. We found that H2O2 consumption capacity of heart mitochondria varies with substrate and is additively reduced by temperature rise and Cu. While Cu is a potent inhibitor of H2O2 consumption in mitochondria oxidizing glutamate-malate and succinate, mitochondria oxidizing PC are resistant to the inhibitory effect of the metal. Moreover, the sensitivity of H2O2 consumption pathways to Cu depend on the substrate and are greatly impaired during oxidation of glutamate-malate. Pharmacological manipulation of mitochondrial antioxidant systems revealed that NADPH-dependent peroxidase systems are the centerpieces of ROS scavenging in heart mitochondria, with the glutathione-dependent pathway being the most prominent while catalase played a minimal role. Surprisingly, Cu is as efficacious in inhibiting thioredoxin-dependent peroxidase pathway as auranofin, a selective inhibitor of thioredoxin reductase. Taken together, our study uncovered unique mechanisms by which Cu alters mitochondrial H2O2 homeostasis including its ability to inhibit specific mitochondrial ROS scavenging pathways on a par with conventional inhibitors. Importantly, because of additive inhibitory effect on mitochondrial ROS removal mechanisms, hearts of organisms jointly exposed to Cu and thermal stress are likely at increased risk of oxidative distress.
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Affiliation(s)
- Michael O Isei
- Department of Biomedical Sciences, Atlantic Veterinary College, University of Prince Edward Island, 550 University Avenue, Charlottetown, PE C1A 4P3, Canada
| | - Don Stevens
- Department of Biomedical Sciences, Atlantic Veterinary College, University of Prince Edward Island, 550 University Avenue, Charlottetown, PE C1A 4P3, Canada
| | - Collins Kamunde
- Department of Biomedical Sciences, Atlantic Veterinary College, University of Prince Edward Island, 550 University Avenue, Charlottetown, PE C1A 4P3, Canada.
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38
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Liu X, Gao S, Gao H, Jiang X, Wei Q. Mitochondrial Disruption Is Involved in the Effect of Nuclear Factor of Activated T cells, Cytoplasmic 4 on Aggravating Cardiomyocyte Hypertrophy. J Cardiovasc Pharmacol 2021; 77:557-569. [PMID: 33951694 DOI: 10.1097/fjc.0000000000000986] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 01/14/2021] [Indexed: 11/26/2022]
Abstract
ABSTRACT Nuclear factor of activated T cells, cytoplasmic 4 (NFATc4), a nuclear transcription factor, has been implicated in cardiac hypertrophy through the enhancement of hypertrophic gene expression. However, the role of NFATc4 in mitochondrial modulation is mostly unknown. The current study aimed to investigate the role of NFATc4 in regulating mitochondrial function during phenylephrine (PE)-induced cardiac hypertrophy. Our results showed that overexpression of NFATc4 aggravated the PE-induced decrease in mitochondrial genesis, membrane potential, and mitochondrial gene expression as well as impaired mitochondrial respiration. However, knockdown of NFATc4 relieved PE-induced perturbations in mitochondria and cardiomyocyte hypertrophy. Mechanistically, by activating phosphoinositide-dependent kinase 1 and promoting a combination of AKT and phosphoinositide-dependent kinase 1, phosphorylation and sequential acetylation of PGC-1α were aggravated by NFATc4 and suppressed the activity of PGC-1α. In conclusion, NFATc4-regulated factors were shown to be associated with mitochondrial function and exacerbated PE-induced mitochondrial dysfunction. These findings revealed new roles of NFATc4 in cardiac hypertrophy.
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Affiliation(s)
- Xueping Liu
- Department of Pharmacy, School of Medicine, Guangxi University of Science and Technology, Liuzhou, Guangxi, People's Republic of China ; and
| | - Si Gao
- Department of Pharmacy, School of Medicine, Guangxi University of Science and Technology, Liuzhou, Guangxi, People's Republic of China ; and
| | - Hui Gao
- Department of Pharmacology, School of Medicine, Shaoxing University, Shaoxing, People's Republic of China
| | - Xudong Jiang
- Department of Pharmacy, School of Medicine, Guangxi University of Science and Technology, Liuzhou, Guangxi, People's Republic of China ; and
| | - Qiqiu Wei
- Department of Pharmacy, School of Medicine, Guangxi University of Science and Technology, Liuzhou, Guangxi, People's Republic of China ; and
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39
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Lieder HR, Braczko F, Gedik N, Stroetges M, Heusch G, Kleinbongard P. Cardioprotection by post-conditioning with exogenous triiodothyronine in isolated perfused rat hearts and isolated adult rat cardiomyocytes. Basic Res Cardiol 2021; 116:27. [PMID: 33876304 PMCID: PMC8055637 DOI: 10.1007/s00395-021-00868-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 03/31/2021] [Indexed: 01/22/2023]
Abstract
Ischemic post-conditioning (iPoCo) by coronary re-occlusion/reperfusion during immediate reperfusion after prolonged myocardial ischemia reduces infarct size. Mechanical manipulation of culprit lesions, however, carries the risk of coronary microembolization which may obscure iPoCo's cardioprotection. Pharmacological post-conditioning with exogenous triiodothyronine (T3) could serve as an alternative conditioning strategy. Similar to iPoCo, T3 may activate cardioprotective prosurvival pathways. We aimed to study T3's impact on infarct size and its underlying signal transduction. Hearts were isolated from male Lewis rats (200-380 g), buffer-perfused and subjected to 30 min/120 min global zero-flow ischemia/reperfusion (I/R). In additional hearts, either iPoCo (2 × 30 s/30 s I/R) was performed or T3 (100-500 µg/L) infused at reperfusion. Infarct size was demarcated with triphenyl tetrazolium chloride staining and calculated as percent of ventricular mass. Infarct size was reduced with iPoCo to 16 ± 7% vs. 36 ± 4% with I/R only. The maximum infarct size reduction was observed with 300 µg/L T3 (14 ± 2%). T3 increased the phosphorylation of protein kinase B and mitogen extracellular-regulated-kinase 1/2, both key enzymes of the reperfusion injury salvage kinase (RISK) pathway. Pharmacological RISK blockade (RISK-BL) during reperfusion abrogated T3's cardioprotection (35 ± 10%). Adult ventricular cardiomyocytes were isolated from buffer-perfused rat hearts and exposed to 30 min/5 min hypoxia/reoxygenation (H/R); reoxygenation was initiated without or with T3, respectively, and without or with RISK-BL, respectively. Maximal preservation of viability was observed with 500 µg/L T3 after H/R (27 ± 4% of all cells vs. 5 ± 3% in time-matched controls). Again, RISK-BL abrogated protection (11 ± 3%). Mitochondria were isolated at early reperfusion from buffer-perfused rat hearts without or with iPoCo or 300 µg/L T3, respectively, at reperfusion. T3 improved mitochondrial function (i.e.: increased respiration, adenosine triphosphate production, calcium retention capacity, and decreased reactive oxygen species formation) to a similar extent as iPoCo. T3 at reperfusion reduces infarct size by activation of the RISK pathway. T3's protection is a cardiomyocyte phenomenon and targets mitochondria.
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Affiliation(s)
- Helmut Raphael Lieder
- Institute for Pathophysiology, West German Heart and Vascular Center, University of Essen Medical School, Hufelandstr. 55, 45122, Essen, Germany
| | - Felix Braczko
- Institute for Pathophysiology, West German Heart and Vascular Center, University of Essen Medical School, Hufelandstr. 55, 45122, Essen, Germany
| | - Nilgün Gedik
- Institute for Pathophysiology, West German Heart and Vascular Center, University of Essen Medical School, Hufelandstr. 55, 45122, Essen, Germany
| | - Merlin Stroetges
- Institute for Pathophysiology, West German Heart and Vascular Center, University of Essen Medical School, Hufelandstr. 55, 45122, Essen, Germany
| | - Gerd Heusch
- Institute for Pathophysiology, West German Heart and Vascular Center, University of Essen Medical School, Hufelandstr. 55, 45122, Essen, Germany
| | - Petra Kleinbongard
- Institute for Pathophysiology, West German Heart and Vascular Center, University of Essen Medical School, Hufelandstr. 55, 45122, Essen, Germany.
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Wüst RCI, Coolen BF, Held NM, Daal MRR, Alizadeh Tazehkandi V, Baks-te Bulte L, Wiersma M, Kuster DWD, Brundel BJJM, van Weeghel M, Strijkers GJ, Houtkooper RH. The Antibiotic Doxycycline Impairs Cardiac Mitochondrial and Contractile Function. Int J Mol Sci 2021; 22:4100. [PMID: 33921053 PMCID: PMC8071362 DOI: 10.3390/ijms22084100] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 04/08/2021] [Accepted: 04/08/2021] [Indexed: 12/22/2022] Open
Abstract
Tetracycline antibiotics act by inhibiting bacterial protein translation. Given the bacterial ancestry of mitochondria, we tested the hypothesis that doxycycline-which belongs to the tetracycline class-reduces mitochondrial function, and results in cardiac contractile dysfunction in cultured H9C2 cardiomyoblasts, adult rat cardiomyocytes, in Drosophila and in mice. Ampicillin and carbenicillin were used as control antibiotics since these do not interfere with mitochondrial translation. In line with its specific inhibitory effect on mitochondrial translation, doxycycline caused a mitonuclear protein imbalance in doxycycline-treated H9C2 cells, reduced maximal mitochondrial respiration, particularly with complex I substrates, and mitochondria appeared fragmented. Flux measurements using stable isotope tracers showed a shift away from OXPHOS towards glycolysis after doxycycline exposure. Cardiac contractility measurements in adult cardiomyocytes and Drosophila melanogaster hearts showed an increased diastolic calcium concentration, and a higher arrhythmicity index. Systolic and diastolic dysfunction were observed after exposure to doxycycline. Mice treated with doxycycline showed mitochondrial complex I dysfunction, reduced OXPHOS capacity and impaired diastolic function. Doxycycline exacerbated diastolic dysfunction and reduced ejection fraction in a diabetes mouse model vulnerable for metabolic derangements. We therefore conclude that doxycycline impairs mitochondrial function and causes cardiac dysfunction.
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Affiliation(s)
- Rob C. I. Wüst
- Laboratory Genetic Metabolic Diseases, Amsterdam Gastroenterology, Endocrinology, and Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (N.M.H.); (V.A.T.); (M.v.W.)
- Biomedical Engineering and Physics, Amsterdam Cardiovascular Sciences, University of Amsterdam, Amsterdam UMC, 1105 AZ Amsterdam, The Netherlands; (B.F.C.); (M.R.R.D.); (G.J.S.)
- Laboratory for Myology, Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Amsterdam Movement Sciences, Vrije University Amsterdam, 1081 BT Amsterdam, The Netherlands
| | - Bram F. Coolen
- Biomedical Engineering and Physics, Amsterdam Cardiovascular Sciences, University of Amsterdam, Amsterdam UMC, 1105 AZ Amsterdam, The Netherlands; (B.F.C.); (M.R.R.D.); (G.J.S.)
| | - Ntsiki M. Held
- Laboratory Genetic Metabolic Diseases, Amsterdam Gastroenterology, Endocrinology, and Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (N.M.H.); (V.A.T.); (M.v.W.)
| | - Mariah R. R. Daal
- Biomedical Engineering and Physics, Amsterdam Cardiovascular Sciences, University of Amsterdam, Amsterdam UMC, 1105 AZ Amsterdam, The Netherlands; (B.F.C.); (M.R.R.D.); (G.J.S.)
| | - Vida Alizadeh Tazehkandi
- Laboratory Genetic Metabolic Diseases, Amsterdam Gastroenterology, Endocrinology, and Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (N.M.H.); (V.A.T.); (M.v.W.)
| | - Luciënne Baks-te Bulte
- Department of Physiology, Amsterdam Cardiovascular Sciences, Amsterdam UMC, VU University Medical Center, 1081 HZ Amsterdam, The Netherlands; (L.B.-t.B.); (M.W.); (D.W.D.K.); (B.J.J.M.B.)
| | - Marit Wiersma
- Department of Physiology, Amsterdam Cardiovascular Sciences, Amsterdam UMC, VU University Medical Center, 1081 HZ Amsterdam, The Netherlands; (L.B.-t.B.); (M.W.); (D.W.D.K.); (B.J.J.M.B.)
| | - Diederik W. D. Kuster
- Department of Physiology, Amsterdam Cardiovascular Sciences, Amsterdam UMC, VU University Medical Center, 1081 HZ Amsterdam, The Netherlands; (L.B.-t.B.); (M.W.); (D.W.D.K.); (B.J.J.M.B.)
| | - Bianca J. J. M. Brundel
- Department of Physiology, Amsterdam Cardiovascular Sciences, Amsterdam UMC, VU University Medical Center, 1081 HZ Amsterdam, The Netherlands; (L.B.-t.B.); (M.W.); (D.W.D.K.); (B.J.J.M.B.)
| | - Michel van Weeghel
- Laboratory Genetic Metabolic Diseases, Amsterdam Gastroenterology, Endocrinology, and Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (N.M.H.); (V.A.T.); (M.v.W.)
| | - Gustav J. Strijkers
- Biomedical Engineering and Physics, Amsterdam Cardiovascular Sciences, University of Amsterdam, Amsterdam UMC, 1105 AZ Amsterdam, The Netherlands; (B.F.C.); (M.R.R.D.); (G.J.S.)
- Department of Radiology, Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Riekelt H. Houtkooper
- Laboratory Genetic Metabolic Diseases, Amsterdam Gastroenterology, Endocrinology, and Metabolism, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands; (N.M.H.); (V.A.T.); (M.v.W.)
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Jayakumari NR, Rajendran RS, Sivasailam A, Parambil ST, Reghuvaran AC, Sreelatha HV, Gopala S. Honokiol regulates mitochondrial substrate utilization and cellular fatty acid metabolism in diabetic mice heart. Eur J Pharmacol 2021; 896:173918. [PMID: 33529726 DOI: 10.1016/j.ejphar.2021.173918] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 01/13/2021] [Accepted: 01/26/2021] [Indexed: 01/06/2023]
Abstract
Type 2 diabetes mellitus is strongly associated with cardiac mitochondrial dysfunction, which is one of the main reasons for cardiovascular diseases. Among the mitochondrial metabolic changes, fatty acid metabolism is of great importance as cardiac tissues depend primarily on fatty acids. Honokiol, a constituent of Magnolia tree bark extract, is reported to strongly influence cardiac mitochondrial functions, via various mechanisms. The current study showed that honokiol decreased fatty acid-mediated complex I respiration and increased carbohydrate-mediated complex I and II respiration in diabetic C57BL/6 mice cardiac mitochondria. It was also found that honokiol treatment decreased expression of Cluster of Differentiation 36, AMP-activated kinases and nuclear transcription factors like, Peroxisome proliferator-activated receptor γ co-activator 1α/β and Peroxisome proliferator-activated receptor α, surrogating the evidence of decreased fatty acid-mediated complex I respiration. Honokiol treatment also reduced the levels of mitochondrial acetylated proteins, suggesting the possible action of honokiol via acetylation/deacetylation mechanism of regulation of protein functions in diabetic mitochondria. The antioxidant effect of honokiol is evidenced by the augmented expression of Manganese super oxide dismutase. In conclusion, honokiol imparts beneficial effect on diabetic cardiac mitochondria by decreasing the oxidant burden via regulating mitochondrial fatty acid respiration and expression of oxidant response factors.
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MESH Headings
- AMP-Activated Protein Kinases/metabolism
- Acetylation
- Animals
- Antioxidants/pharmacology
- Biphenyl Compounds/pharmacology
- CD36 Antigens/metabolism
- Diabetes Mellitus, Experimental/chemically induced
- Diabetes Mellitus, Experimental/drug therapy
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Type 2/chemically induced
- Diabetes Mellitus, Type 2/drug therapy
- Diabetes Mellitus, Type 2/metabolism
- Energy Metabolism/drug effects
- Fatty Acids/metabolism
- Lignans/pharmacology
- Male
- Mice, Inbred C57BL
- Mitochondria, Heart/drug effects
- Mitochondria, Heart/metabolism
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/metabolism
- NF-E2-Related Factor 2/metabolism
- Oxidative Stress/drug effects
- PPAR alpha/metabolism
- Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha/metabolism
- Streptozocin
- Superoxide Dismutase/metabolism
- Mice
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Affiliation(s)
- Nandini Ravikumar Jayakumari
- Department of Biochemistry, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram, Kerala, India
| | - Raji Sasikala Rajendran
- Department of Biochemistry, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram, Kerala, India
| | - Ashok Sivasailam
- Department of Biochemistry, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram, Kerala, India
| | - Sulfath Thottungal Parambil
- Department of Biochemistry, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram, Kerala, India
| | - Anand Chellappan Reghuvaran
- Department of Biochemistry, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram, Kerala, India
| | - Harikrishnan Vijayakumar Sreelatha
- Division of Laboratory Animal Sciences, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram, Kerala, India
| | - Srinivas Gopala
- Department of Biochemistry, Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram, Kerala, India.
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Gliozzi M, Scarano F, Musolino V, Carresi C, Scarcella A, Nucera S, Scicchitano M, Ruga S, Bosco F, Maiuolo J, Macrì R, Zito MC, Oppedisano F, Guarnieri L, Mollace R, Palma E, Muscoli C, Mollace V. Paradoxical effect of fat diet in matrix metalloproteinases induced mitochondrial dysfunction in diabetic cardiomyopathy. J Cardiovasc Med (Hagerstown) 2021; 22:268-278. [PMID: 33633042 DOI: 10.2459/jcm.0000000000001046] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
AIMS Diabetic cardiomyopathy represents the main cause of death among diabetic people. Despite this evidence, the molecular mechanisms triggered by impaired glucose and lipid metabolism inducing heart damage remain unclear. The aim of our study was to investigate the effect of altered metabolism on the early stages of cardiac injury in experimental diabetes. METHODS For this purpose, rats were fed a normocaloric diet (NPD) or a high fat diet (HFD) for up to 12 weeks. After the fourth week, streptozocin (35 mg/kg) was administered in a subgroup of both NPD and HFD rats to induce diabetes. Cardiac function was analysed by echocardiography. Matrix metalloproteinases (MMPs) activity and intracellular localization were assessed through zymography and immunofluorescence, whereas apoptotic and oxidative markers by immunohistochemistry and western blot. RESULTS Hyperglycaemia or hyperlipidaemia reduced ejection fraction and fractional shortening as compared with control. Unexpectedly, cardiac dysfunction was less marked in diabetic rats fed a hyperlipidaemic diet, suggesting an adaptive response of the myocardium to hyperglycaemia-induced injury. This response was characterized by the inhibition of N-terminal truncated-MMP-2 translocation from endoplasmic reticulum into mitochondria and by superoxide anion overproduction observed in cardiomyocytes under hyperglycaemia. CONCLUSION Overall, these findings suggest novel therapeutic targets aimed to counteract mitochondrial dysfunction in the onset of diabetic cardiomyopathy.
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Affiliation(s)
- Micaela Gliozzi
- Institute of Research for Food Safety & Health (IRC-FSH), University 'Magna Graecia' of Catanzaro
- Nutramed Scarl, Roccelletta di Borgia, Borgia, Catanzaro, Italy
| | - Federica Scarano
- Institute of Research for Food Safety & Health (IRC-FSH), University 'Magna Graecia' of Catanzaro
- Nutramed Scarl, Roccelletta di Borgia, Borgia, Catanzaro, Italy
| | - Vincenzo Musolino
- Institute of Research for Food Safety & Health (IRC-FSH), University 'Magna Graecia' of Catanzaro
- Nutramed Scarl, Roccelletta di Borgia, Borgia, Catanzaro, Italy
| | - Cristina Carresi
- Institute of Research for Food Safety & Health (IRC-FSH), University 'Magna Graecia' of Catanzaro
- Nutramed Scarl, Roccelletta di Borgia, Borgia, Catanzaro, Italy
| | - Antonino Scarcella
- Institute of Research for Food Safety & Health (IRC-FSH), University 'Magna Graecia' of Catanzaro
- Nutramed Scarl, Roccelletta di Borgia, Borgia, Catanzaro, Italy
| | - Saverio Nucera
- Institute of Research for Food Safety & Health (IRC-FSH), University 'Magna Graecia' of Catanzaro
- Nutramed Scarl, Roccelletta di Borgia, Borgia, Catanzaro, Italy
| | - Miriam Scicchitano
- Institute of Research for Food Safety & Health (IRC-FSH), University 'Magna Graecia' of Catanzaro
- Nutramed Scarl, Roccelletta di Borgia, Borgia, Catanzaro, Italy
| | - Stefano Ruga
- Institute of Research for Food Safety & Health (IRC-FSH), University 'Magna Graecia' of Catanzaro
- Nutramed Scarl, Roccelletta di Borgia, Borgia, Catanzaro, Italy
| | - Francesca Bosco
- Institute of Research for Food Safety & Health (IRC-FSH), University 'Magna Graecia' of Catanzaro
- Nutramed Scarl, Roccelletta di Borgia, Borgia, Catanzaro, Italy
| | - Jessica Maiuolo
- Institute of Research for Food Safety & Health (IRC-FSH), University 'Magna Graecia' of Catanzaro
- Nutramed Scarl, Roccelletta di Borgia, Borgia, Catanzaro, Italy
| | - Roberta Macrì
- Institute of Research for Food Safety & Health (IRC-FSH), University 'Magna Graecia' of Catanzaro
- Nutramed Scarl, Roccelletta di Borgia, Borgia, Catanzaro, Italy
| | - Maria Caterina Zito
- Institute of Research for Food Safety & Health (IRC-FSH), University 'Magna Graecia' of Catanzaro
- Nutramed Scarl, Roccelletta di Borgia, Borgia, Catanzaro, Italy
| | - Francesca Oppedisano
- Institute of Research for Food Safety & Health (IRC-FSH), University 'Magna Graecia' of Catanzaro
- Nutramed Scarl, Roccelletta di Borgia, Borgia, Catanzaro, Italy
| | - Lorenza Guarnieri
- Institute of Research for Food Safety & Health (IRC-FSH), University 'Magna Graecia' of Catanzaro
- Nutramed Scarl, Roccelletta di Borgia, Borgia, Catanzaro, Italy
| | - Rocco Mollace
- Institute of Research for Food Safety & Health (IRC-FSH), University 'Magna Graecia' of Catanzaro
- Nutramed Scarl, Roccelletta di Borgia, Borgia, Catanzaro, Italy
| | - Ernesto Palma
- Institute of Research for Food Safety & Health (IRC-FSH), University 'Magna Graecia' of Catanzaro
- Nutramed Scarl, Roccelletta di Borgia, Borgia, Catanzaro, Italy
| | - Carolina Muscoli
- Institute of Research for Food Safety & Health (IRC-FSH), University 'Magna Graecia' of Catanzaro
- Nutramed Scarl, Roccelletta di Borgia, Borgia, Catanzaro, Italy
| | - Vincenzo Mollace
- Institute of Research for Food Safety & Health (IRC-FSH), University 'Magna Graecia' of Catanzaro
- Nutramed Scarl, Roccelletta di Borgia, Borgia, Catanzaro, Italy
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Wang P, Zhang F, Pan L, Tan Y, Song F, Ge Q, Huang Z, Yao L. Inhibiting Cardiac Mitochondrial Fatty Acid Oxidation Attenuates Myocardial Injury in a Rat Model of Cardiac Arrest. Oxid Med Cell Longev 2021; 2021:6622232. [PMID: 33728022 PMCID: PMC7939742 DOI: 10.1155/2021/6622232] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 01/26/2021] [Accepted: 02/16/2021] [Indexed: 11/17/2022]
Abstract
Mitochondrial fatty acid oxidation (FAO) is involved in myocardial damage after cardiopulmonary resuscitation (CPR). This study is aimed at investigating the effect of inhibiting mitochondrial FAO on myocardial injury and the underlying mechanisms of postresuscitation myocardial dysfunction. Rats were induced, subjected to 8 min of ventricular fibrillation, and underwent 6 min of CPR. Rats with return of spontaneous circulation (ROSC) were randomly divided into the Sham group, CPR group, and CPR + Trimetazidine (TMZ) group. Rats in the CPR + TMZ group were administered TMZ (10 mg/kg) at the onset of ROSC via the right external jugular vein, while rats in the CPR group were injected with equivalent volumes of vehicle. The sham rats were only administered equivalent volumes of vehicle. We found that the activities of enzymes related to cardiac mitochondrial FAO were partly improved after ROSC. TMZ, as a reversible inhibitor of 3-ketoacyl CoA thiolase, inhibited myocardial mitochondrial FAO after ROSC. In the CPR + TMZ group, the levels of mitochondrial injury in cardiac tissue were alleviated following attenuated myocardial damage and oxidative stress after ROSC. In addition, the disorder of cardiac mitochondrial metabolism was ameliorated, and specifically, the superfluous succinate related to mitochondrial reactive oxygen species (ROS) generation was decreased by inhibiting myocardial mitochondrial FAO with TMZ administration after ROSC. In conclusion, in the early period after ROSC, inhibiting cardiac mitochondrial FAO attenuated excessive cardiac ROS generation and preserved myocardial function, probably by alleviating the dysfunction of cardiac mitochondrial metabolism in a rat model of cardiac arrest.
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Affiliation(s)
- Peng Wang
- Department of Emergency Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Institute of Cardiopulmonary Cerebral Resuscitation, Sun Yat-sen University, Guangzhou, China
| | - Fan Zhang
- Department of Emergency Medicine, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Liming Pan
- Department of Emergency Medicine, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Yunke Tan
- Department of Emergency Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Institute of Cardiopulmonary Cerebral Resuscitation, Sun Yat-sen University, Guangzhou, China
| | - Fengqing Song
- Department of Emergency Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Institute of Cardiopulmonary Cerebral Resuscitation, Sun Yat-sen University, Guangzhou, China
| | - Qiulin Ge
- Department of Emergency Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Institute of Cardiopulmonary Cerebral Resuscitation, Sun Yat-sen University, Guangzhou, China
| | - Zitong Huang
- Department of Emergency Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Institute of Cardiopulmonary Cerebral Resuscitation, Sun Yat-sen University, Guangzhou, China
| | - Lan Yao
- Department of Emergency Medicine, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
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Ordog K, Horvath O, Eros K, Bruszt K, Toth S, Kovacs D, Kalman N, Radnai B, Deres L, Gallyas F, Toth K, Halmosi R. Mitochondrial protective effects of PARP-inhibition in hypertension-induced myocardial remodeling and in stressed cardiomyocytes. Life Sci 2021; 268:118936. [PMID: 33421523 DOI: 10.1016/j.lfs.2020.118936] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 11/27/2020] [Accepted: 12/12/2020] [Indexed: 12/13/2022]
Abstract
AIMS During oxidative stress mitochondria become the main source of endogenous reactive oxygen species (ROS) production. In the present study, we aimed to clarify the effects of pharmacological PARP-1 inhibition on mitochondrial function and quality control processes. MAIN METHODS L-2286, a quinazoline-derivative PARP inhibitor, protects against cardiovascular remodeling and heart failure by favorable modulation of signaling routes. We examined the effects of PARP-1 inhibition on mitochondrial quality control processes and function in vivo and in vitro. Spontaneously hypertensive rats (SHRs) were treated with L-2286 or placebo. In the in vitro model, 150 μM H2O2 stress was applied on neonatal rat cardiomyocytes (NRCM). KEY FINDINGS PARP-inhibition prevented the development of left ventricular hypertrophy in SHRs. The interfibrillar mitochondrial network were less fragmented, the average mitochondrial size was bigger and showed higher cristae density compared to untreated SHRs. Dynamin related protein 1 (Drp1) translocation and therefore the fission of mitochondria was inhibited by L-2286 treatment. Moreover, L-2286 treatment increased the amount of fusion proteins (Opa1, Mfn2), thus preserving structural stability. PARP-inhibition also preserved the mitochondrial genome integrity. In addition, the mitochondrial biogenesis was also enhanced due to L-2286 treatment, leading to an overall increase in the ATP production and improvement in survival of stressed cells. SIGNIFICANCE Our results suggest that the modulation of mitochondrial dynamics and biogenesis can be a promising therapeutical target in hypertension-induced myocardial remodeling and heart failure.
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MESH Headings
- Animals
- Cells, Cultured
- Citrate (si)-Synthase/metabolism
- DNA, Mitochondrial/genetics
- DNA, Mitochondrial/metabolism
- Electrocardiography
- Glutathione/metabolism
- Hypertension/physiopathology
- Hypertrophy, Left Ventricular/drug therapy
- Hypertrophy, Left Ventricular/etiology
- Male
- Membrane Potential, Mitochondrial/drug effects
- Mitochondria, Heart/drug effects
- Mitochondria, Heart/metabolism
- Mitochondria, Heart/pathology
- Mitochondria, Heart/ultrastructure
- Mitochondrial Proteins/metabolism
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/pathology
- Natriuretic Peptide, Brain/blood
- Piperidines/pharmacology
- Poly(ADP-ribose) Polymerase Inhibitors/pharmacology
- Quinazolines/pharmacology
- Rats, Inbred SHR
- Rats, Wistar
- Rats
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Affiliation(s)
- K Ordog
- 1st Department of Medicine, University of Pecs Medical School, Pecs, Hungary; Szentagothai Research Centre, University of Pecs, Pecs, Hungary
| | - O Horvath
- 1st Department of Medicine, University of Pecs Medical School, Pecs, Hungary; Szentagothai Research Centre, University of Pecs, Pecs, Hungary
| | - K Eros
- Szentagothai Research Centre, University of Pecs, Pecs, Hungary; Department of Biochemistry and Medical Chemistry, University of Pecs Medical School, Pecs, Hungary; HAS-UP Nuclear-Mitochondrial Interactions Research Group, Budapest, Hungary
| | - K Bruszt
- 1st Department of Medicine, University of Pecs Medical School, Pecs, Hungary; Szentagothai Research Centre, University of Pecs, Pecs, Hungary
| | - Sz Toth
- 1st Department of Medicine, University of Pecs Medical School, Pecs, Hungary
| | - D Kovacs
- Department of Biochemistry and Medical Chemistry, University of Pecs Medical School, Pecs, Hungary
| | - N Kalman
- Department of Biochemistry and Medical Chemistry, University of Pecs Medical School, Pecs, Hungary
| | - B Radnai
- Department of Biochemistry and Medical Chemistry, University of Pecs Medical School, Pecs, Hungary
| | - L Deres
- 1st Department of Medicine, University of Pecs Medical School, Pecs, Hungary; Szentagothai Research Centre, University of Pecs, Pecs, Hungary; HAS-UP Nuclear-Mitochondrial Interactions Research Group, Budapest, Hungary
| | - F Gallyas
- Szentagothai Research Centre, University of Pecs, Pecs, Hungary; Department of Biochemistry and Medical Chemistry, University of Pecs Medical School, Pecs, Hungary; HAS-UP Nuclear-Mitochondrial Interactions Research Group, Budapest, Hungary
| | - K Toth
- 1st Department of Medicine, University of Pecs Medical School, Pecs, Hungary; Szentagothai Research Centre, University of Pecs, Pecs, Hungary
| | - R Halmosi
- 1st Department of Medicine, University of Pecs Medical School, Pecs, Hungary; Szentagothai Research Centre, University of Pecs, Pecs, Hungary.
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Lou T, Ma J, Xie Y, Yao G, Fan Y, Ma S, Zou X. Nuanxin capsule enhances cardiac function by inhibiting oxidative stress-induced mitochondrial dependent apoptosis through AMPK/JNK signaling pathway. Biomed Pharmacother 2021; 135:111188. [PMID: 33418304 DOI: 10.1016/j.biopha.2020.111188] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/14/2020] [Accepted: 12/26/2020] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE Oxidative stress and apoptosis play critical roles in the pathogenesis of heart failure (HF).Nuanxin capsule (NX) is a Chinese medicine that has outstanding protective effects on HF. The present study aimed to elucidate whether NX could protect HF against oxidative stress-induced apoptosis through intrinsic mitochondrial pathway. METHODS In vivo, HF was induced by transverse aortic constriction. NX and Compound C (Comp C) were administered to C57BL/6 J mice for over a 4-week period. Cardiac function was assessed with echocardiography. In vitro, H9c2 cells were exposed to H2O2 in the presence or absence of NX and Compound C. Cell viability, cytotoxicity, reactive oxygen species (ROS) production, apoptosis, mitochondrial membrane potential (ΔΨm) and mitochondrial function by oxygen consumption rate (OCR) were detected. The expressions of cytochrome c, BAX, Bcl-2, cleaved caspase-3, AMPK and JNK were evaluated by western blotting. RESULTS The results indicated that NX significantly improved cardiac function and enhanced the cell viability, ΔΨm and mitochondrial respiration. Also NX treatment reduced cell cytotoxicity and ROS production. Moreover, NX inhibited mitochondrial-mediated apoptosis by upregulating AMPK and downregulating JNK both in vivo and in vitro. The protective effects of NX on cardiac function by reducing oxidative stress-induced mitochondrial dependent apoptosis were reversed by Compound C treatment. CONCLUSIONS These findings demonstrated that NX effectively improved cardiac function in TAC mice by reducing oxidative stress-induced mitochondrial dependent apoptosis by activating AMPK/JNK signaling pathway.
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Affiliation(s)
- Tiantian Lou
- Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou 510405, China; The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, 510006, China
| | - Jin Ma
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, 510006, China
| | - Yanzheng Xie
- Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou 510405, China; The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, 510006, China
| | - Gengzhen Yao
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, 510006, China
| | - Ye Fan
- Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou 510405, China; The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, 510006, China
| | - Shiyu Ma
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, 510006, China.
| | - Xu Zou
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, 510006, China; Dongguan Kanghua Hospital, Dongguan, 523080, China.
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Zhao J, Zhang J, Liu Q, Wang Y, Jin Y, Yang Y, Ni C, Zhang L. Hongjingtian injection protects against myocardial ischemia reperfusion-induced apoptosis by blocking ROS induced autophagic- flux. Biomed Pharmacother 2021; 135:111205. [PMID: 33395603 DOI: 10.1016/j.biopha.2020.111205] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 12/13/2020] [Accepted: 12/26/2020] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Hongjingtian injection (HJT) has been widely used in the clinic to treat coronary heart disease in China. However, the underlying mechanisms of therapies still need to be illustrated. The present study aims to determine whether HJT protects against myocardial ischemia reperfusion injury via Reactive Oxygen Species (ROS)-induced autophagic flux and apoptosis and, if so, to explore the underlying mechanisms. METHODS In vivo myocardial protection and autophagy regulation of HJT in myocardial ischemia reperfusion injury in C57BL/6 J and CAG-RFP-EGFP-LC3 transgenic C57BL/6 J mice were investigated. In vitro, the effects of HJT on apoptosis, autophagic flux, oxidative stress and mitochondrial function were observed in H2O2-induced H9c2 cells. In addition, apoptosis-related proteins and autophagy-related proteins were assessed to explore the underlying mechanisms. RESULTS HJT significantly decreased the infarct area and cell apoptosis after myocardial ischemia reperfusion injury in C57BL/6 J mice. Autophagic flux was reduced by HJT treatment after myocardial ischemia reperfusion injury in CAG-RFP-EGFP-LC3 transgenic C57BL/6 J mice. HJT inhibited H2O2-induced cell apoptosis by significantly decreasing the levels of cleaved caspase 3 and increasing the Bcl-2/Bax ratio. HJT inhibited autophagic flux after H2O2 stimulation by significantly decreasing LC3-Ⅱ and p-AMPK expression and increasing p-mTOR. HJT inhibited ROS production and improved mitochondrial function in H2O2-induced cells by significantly increasing the mitochondrial membrane potential, intracellular ATP contents and oxygen consumption. CONCLUSION The beneficial effects of HJT in treating myocardial ischemia reperfusion are partially due to improved mitochondrial function and regulated autophagy to inhibit cell apoptosis through the AMPK/mTOR pathway.
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MESH Headings
- AMP-Activated Protein Kinases/metabolism
- Animals
- Antioxidants/pharmacology
- Apoptosis/drug effects
- Apoptosis Regulatory Proteins/metabolism
- Autophagy/drug effects
- Cell Line
- Disease Models, Animal
- Drugs, Chinese Herbal/pharmacology
- Male
- Mice, Inbred C57BL
- Mice, Transgenic
- Microtubule-Associated Proteins/genetics
- Microtubule-Associated Proteins/metabolism
- Mitochondria, Heart/drug effects
- Mitochondria, Heart/metabolism
- Mitochondria, Heart/pathology
- Myocardial Infarction/metabolism
- Myocardial Infarction/pathology
- Myocardial Infarction/prevention & control
- Myocardial Reperfusion Injury/metabolism
- Myocardial Reperfusion Injury/pathology
- Myocardial Reperfusion Injury/prevention & control
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/pathology
- Oxidative Stress/drug effects
- Rats
- Reactive Oxygen Species/metabolism
- Signal Transduction
- TOR Serine-Threonine Kinases/metabolism
- Mice
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Affiliation(s)
- Jing Zhao
- Department of Cardiology of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Clinical Research Center of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Cardiovascular Key Laboratory of Zhejiang Province, China
| | - Jiwei Zhang
- The MOE Key Laboratory for Standardization of Chinese Medicine, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qian Liu
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yingchao Wang
- Pharmaceutical Imformatics Institute, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Yecheng Jin
- Pharmaceutical Department of Affiliated Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yingxin Yang
- Pharmaceutical Department of Affiliated Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Cheng Ni
- Department of Cardiology of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
| | - Ling Zhang
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou, China.
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Hermann R, Mestre Cordero VE, Fernández Pazos MDLM, Córdoba MF, Reznik FJ, Vélez DE, Fellet AL, Marina Prendes MG. Role of AMPK in the protective effects exerted by triiodothyronine in ischemic-reperfused myocardium. J Mol Endocrinol 2021; 66:207-221. [PMID: 33640872 DOI: 10.1530/jme-20-0314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 02/22/2021] [Indexed: 11/08/2022]
Abstract
Recent studies have provided evidence that triiodothyronine (T3) might play an effective role in the recovery of ischemic myocardium, through the preservation of mitochondrial function and the improvement of energy substrate metabolism. To this respect, it has been suggested that T3 could activate AMP-activated protein kinase (AMPK), the cellular 'fuel-gauge' enzyme, although its role has yet to be elucidated. The aim of the present study was to investigate the effects produced by acute treatment with T3 (60 nM) and the pharmacological inhibition of AMPK by compound C on isolated rat left atria subjected to 75 min simulated ischemia-75 min reperfusion. Results showed that T3 increased AMPK activation during simulated ischemia-reperfusion, while compound C prevented it. At the end of simulated reperfusion, acute T3 treatment increased contractile function recovery and cellular viability conservation. Mitochondrial ultrastructure was better preserved in the presence of T3 as well as mitochondrial ATP production rate and tissue ATP content. Calcium retention capacity, a parameter widely used as an indicator of the resistance of mitochondrial permeability transition pore (MPTP) to opening, and GSK-3β phosphorylation, a master switch enzyme that limits MPTP opening, were increased by T3 administration. All these beneficial effects exerted by T3 acute treatment were prevented when compound C was co-administrated. The present study provided original evidence that T3 enhances intrinsic activation of AMPK during myocardial ischemia-reperfusion, being this enzyme involved, at least in part, in the protective effects exerted by T3, contributing to mitochondrial structure and function preservation, post-ischemic contractile recovery and conservation of cellular viability.
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Affiliation(s)
- Romina Hermann
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Biológicas, Cátedra de Fisiología, Buenos Aires, Argentina
- CONICET - Universidad de Buenos Aires, Instituto de Química y Metabolismo del Fármaco (IQUIMEFA), Buenos Aires, Argentina
| | - Victoria Evangelina Mestre Cordero
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Biológicas, Cátedra de Fisiología, Buenos Aires, Argentina
- CONICET - Universidad de Buenos Aires, Instituto de Química y Metabolismo del Fármaco (IQUIMEFA), Buenos Aires, Argentina
| | | | - Mailen Florencia Córdoba
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Biológicas, Cátedra de Fisiología, Buenos Aires, Argentina
| | - Federico Joaquín Reznik
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Biológicas, Cátedra de Fisiología, Buenos Aires, Argentina
| | - Débora Elisabet Vélez
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Biológicas, Cátedra de Fisiología, Buenos Aires, Argentina
- CONICET - Universidad de Buenos Aires, Instituto de Química y Metabolismo del Fármaco (IQUIMEFA), Buenos Aires, Argentina
| | - Andrea Lorena Fellet
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Biológicas, Cátedra de Fisiología, Buenos Aires, Argentina
- CONICET - Universidad de Buenos Aires, Instituto de Química y Metabolismo del Fármaco (IQUIMEFA), Buenos Aires, Argentina
| | - María Gabriela Marina Prendes
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Biológicas, Cátedra de Fisiología, Buenos Aires, Argentina
- CONICET - Universidad de Buenos Aires, Instituto de Química y Metabolismo del Fármaco (IQUIMEFA), Buenos Aires, Argentina
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48
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Zemljic-Harpf AE, Hoe LES, Schilling JM, Zuniga-Hertz JP, Nguyen A, Vaishnav YJ, Belza GJ, Budiono BP, Patel PM, Head BP, Dillmann WH, Mahata SK, Peart JN, Roth DM, Headrick JP, Patel HH. Morphine induces physiological, structural, and molecular benefits in the diabetic myocardium. FASEB J 2021; 35:e21407. [PMID: 33583084 PMCID: PMC10843897 DOI: 10.1096/fj.201903233r] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 01/12/2021] [Accepted: 01/19/2021] [Indexed: 01/03/2023]
Abstract
The obesity epidemic has increased type II diabetes mellitus (T2DM) across developed countries. Cardiac T2DM risks include ischemic heart disease, heart failure with preserved ejection fraction, intolerance to ischemia-reperfusion (I-R) injury, and refractoriness to cardioprotection. While opioids are cardioprotective, T2DM causes opioid receptor signaling dysfunction. We tested the hypothesis that sustained opioid receptor stimulus may overcome diabetes mellitus-induced cardiac dysfunction via membrane/mitochondrial-dependent protection. In a murine T2DM model, we investigated effects of morphine on cardiac function, I-R tolerance, ultrastructure, subcellular cholesterol expression, mitochondrial protein abundance, and mitochondrial function. T2DM induced 25% weight gain, hyperglycemia, glucose intolerance, cardiac hypertrophy, moderate cardiac depression, exaggerated postischemic myocardial dysfunction, abnormalities in mitochondrial respiration, ultrastructure and Ca2+ -induced swelling, and cell death were all evident. Morphine administration for 5 days: (1) improved glucose homeostasis; (2) reversed cardiac depression; (3) enhanced I-R tolerance; (4) restored mitochondrial ultrastructure; (5) improved mitochondrial function; (6) upregulated Stat3 protein; and (7) preserved membrane cholesterol homeostasis. These data show that morphine treatment restores contractile function, ischemic tolerance, mitochondrial structure and function, and membrane dynamics in type II diabetic hearts. These findings suggest potential translational value for short-term, but high-dose morphine administration in diabetic patients undergoing or recovering from acute ischemic cardiovascular events.
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Affiliation(s)
- Alice E. Zemljic-Harpf
- VA San Diego Healthcare System, San Diego, CA, USA
- Department of Anesthesiology, University of California San Diego, La Jolla, CA, USA
| | - Louise E. See Hoe
- Department of Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia
- Critical Care Research Group, The Prince Charles Hospital, Brisbane, QLD, Australia
| | - Jan M. Schilling
- VA San Diego Healthcare System, San Diego, CA, USA
- Department of Anesthesiology, University of California San Diego, La Jolla, CA, USA
| | - Juan P. Zuniga-Hertz
- VA San Diego Healthcare System, San Diego, CA, USA
- Department of Anesthesiology, University of California San Diego, La Jolla, CA, USA
| | - Alexander Nguyen
- VA San Diego Healthcare System, San Diego, CA, USA
- Department of Anesthesiology, University of California San Diego, La Jolla, CA, USA
| | - Yash J. Vaishnav
- VA San Diego Healthcare System, San Diego, CA, USA
- Department of Anesthesiology, University of California San Diego, La Jolla, CA, USA
| | - Gianna J. Belza
- VA San Diego Healthcare System, San Diego, CA, USA
- Department of Anesthesiology, University of California San Diego, La Jolla, CA, USA
| | - Boris P. Budiono
- Heart Foundation Research Centre, Griffith Health Institute, Griffith University, Southport, QLD, Australia
| | - Piyush M. Patel
- VA San Diego Healthcare System, San Diego, CA, USA
- Department of Anesthesiology, University of California San Diego, La Jolla, CA, USA
| | - Brian P. Head
- VA San Diego Healthcare System, San Diego, CA, USA
- Department of Anesthesiology, University of California San Diego, La Jolla, CA, USA
| | - Wolfgang H. Dillmann
- VA San Diego Healthcare System, San Diego, CA, USA
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Sushil K. Mahata
- VA San Diego Healthcare System, San Diego, CA, USA
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Jason N. Peart
- Heart Foundation Research Centre, Griffith Health Institute, Griffith University, Southport, QLD, Australia
| | - David M. Roth
- VA San Diego Healthcare System, San Diego, CA, USA
- Department of Anesthesiology, University of California San Diego, La Jolla, CA, USA
| | - John P. Headrick
- Heart Foundation Research Centre, Griffith Health Institute, Griffith University, Southport, QLD, Australia
| | - Hemal H. Patel
- VA San Diego Healthcare System, San Diego, CA, USA
- Department of Anesthesiology, University of California San Diego, La Jolla, CA, USA
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49
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Emelyanova L, Bai X, Yan Y, Bosnjak ZJ, Kress D, Warner C, Kroboth S, Rudic T, Kaushik S, Stoeckl E, Ross GR, Rizvi F, Tajik AJ, Jahangir A. Biphasic effect of metformin on human cardiac energetics. Transl Res 2021; 229:5-23. [PMID: 33045408 PMCID: PMC10655614 DOI: 10.1016/j.trsl.2020.10.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 09/30/2020] [Accepted: 10/05/2020] [Indexed: 02/01/2023]
Abstract
Metformin is the first-line medication for treatment of type 2 diabetes and has been shown to reduce heart damage and death. However, mechanisms by which metformin protects human heart remain debated. The aim of the study was to evaluate the cardioprotective effect of metformin on cardiomyocytes derived from human-induced pluripotent stem cells (hiPSC-CMs) and mitochondria isolated from human cardiac tissue. At concentrations ≤2.5 mM, metformin significantly increased oxygen consumption rate (OCR) in the hiPSC-CMs by activating adenosine monophosphate activated protein kinase (AMPK)-dependent signaling and enhancing mitochondrial biogenesis. This effect was abrogated by compound C, an inhibitor of AMPK. At concentrations >5 mM, metformin inhibited the cellular OCR and triggered metabolic reprogramming by enhancing glycolysis and glutaminolysis in the cardiomyocytes. In isolated cardiac mitochondria, metformin did not increase the OCR at any concentrations but inhibited the OCR starting at 1 mM through direct inhibition of electron-transport chain complex I. This was associated with reduction of superoxide production and attenuation of Ca2+-induced mitochondrial permeability transition pore (mPTP) opening in the mitochondria. Thus, in human heart, metformin might improve cardioprotection due to its biphasic effect on mitochondria: at low concentrations, it activates mitochondrial biogenesis via AMPK signaling and increases the OCR; at high concentrations, it inhibits the respiration by directly affecting the activity of complex I, reduces oxidative stress and delays mPTP formation. Moreover, metformin at high concentrations causes metabolic reprogramming by enhancing glycolysis and glutaminolysis. These effects can be a beneficial adjunct to patients with impaired endogenous cardioprotective responses.
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Affiliation(s)
- Larisa Emelyanova
- Center for Integrative Research on Cardiovascular Aging, Advocate Aurora Research Institute, Milwaukee, Wisconsin.
| | - Xiaowen Bai
- Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Yasheng Yan
- Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Zeljko J Bosnjak
- Departments of Medicine and Physiology, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - David Kress
- Aurora Cardiovascular and Thoracic Services, St. Luke's Medical Center, Advocate Aurora Health Care, Milwaukee, Wisconsin
| | - Catherine Warner
- Center for Integrative Research on Cardiovascular Aging, Advocate Aurora Research Institute, Milwaukee, Wisconsin
| | - Stacie Kroboth
- Aurora Cardiovascular and Thoracic Services, St. Luke's Medical Center, Advocate Aurora Health Care, Milwaukee, Wisconsin
| | - Teodore Rudic
- Center for Integrative Research on Cardiovascular Aging, Advocate Aurora Research Institute, Milwaukee, Wisconsin
| | - Sirisha Kaushik
- Center for Integrative Research on Cardiovascular Aging, Advocate Aurora Research Institute, Milwaukee, Wisconsin
| | - Elizabeth Stoeckl
- Center for Integrative Research on Cardiovascular Aging, Advocate Aurora Research Institute, Milwaukee, Wisconsin
| | - Gracious R Ross
- Center for Integrative Research on Cardiovascular Aging, Advocate Aurora Research Institute, Milwaukee, Wisconsin
| | - Farhan Rizvi
- Center for Integrative Research on Cardiovascular Aging, Advocate Aurora Research Institute, Milwaukee, Wisconsin
| | - A Jamil Tajik
- Aurora Cardiovascular and Thoracic Services, St. Luke's Medical Center, Advocate Aurora Health Care, Milwaukee, Wisconsin
| | - Arshad Jahangir
- Aurora Cardiovascular and Thoracic Services, St. Luke's Medical Center, Advocate Aurora Health Care, Milwaukee, Wisconsin
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50
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Horvath O, Ordog K, Bruszt K, Kalman N, Kovacs D, Radnai B, Gallyas F, Toth K, Halmosi R, Deres L. Modulation of Mitochondrial Quality Control Processes by BGP-15 in Oxidative Stress Scenarios: From Cell Culture to Heart Failure. Oxid Med Cell Longev 2021; 2021:6643871. [PMID: 33728024 PMCID: PMC7937466 DOI: 10.1155/2021/6643871] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 01/15/2021] [Accepted: 02/09/2021] [Indexed: 12/13/2022]
Abstract
Heart failure (HF) is a complex chronic clinical disease characterized by among others the damage of the mitochondrial network. The disruption of the mitochondrial quality control and the imbalance in fusion-fission processes lead to a lack of energy supply and, finally, to cell death. BGP-15 (O-[3-piperidino-2-hydroxy-1-propyl]-nicotinic acid amidoxime dihydrochloride) is an insulin sensitizer molecule and has a cytoprotective effect in a wide variety of experimental models. In our recent work, we aimed to clarify the mitochondrial protective effects of BGP-15 in a hypertension-induced heart failure model and "in vitro." Spontaneously hypertensive rats (SHRs) received BGP-15 or placebo for 18 weeks. BGP-15 treatment preserved the normal mitochondrial ultrastructure and enhanced the mitochondrial fusion. Neonatal rat cardiomyocytes (NRCMs) were stressed by hydrogen-peroxide. BGP-15 treatment inhibited the mitochondrial fission processes, promoted mitochondrial fusion, maintained the integrity of the mitochondrial genome, and moreover enhanced the de novo biogenesis of the mitochondria. As a result of these effects, BGP-15 treatment also supports the maintenance of mitochondrial function through the preservation of the mitochondrial structure during hydrogen peroxide-induced oxidative stress as well as in an "in vivo" heart failure model. It offers the possibility, which pharmacological modulation of mitochondrial quality control under oxidative stress could be a novel therapeutic approach in heart failure.
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MESH Headings
- Animals
- Animals, Newborn
- Cell Culture Techniques
- Citrate (si)-Synthase/metabolism
- DNA/metabolism
- DNA Damage
- DNA, Mitochondrial/genetics
- Dynamins/metabolism
- Electron Transport/drug effects
- Energy Metabolism/drug effects
- Genome, Mitochondrial
- Heart Failure/etiology
- Heart Failure/pathology
- Hypertension/complications
- Male
- Membrane Potential, Mitochondrial/drug effects
- Mitochondria, Heart/drug effects
- Mitochondria, Heart/metabolism
- Mitochondria, Heart/ultrastructure
- Mitochondrial Dynamics
- Mitochondrial Proteins/metabolism
- Myocardium/pathology
- Myocardium/ultrastructure
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/ultrastructure
- Natriuretic Peptide, Brain/metabolism
- Organelle Biogenesis
- Oxidative Stress/drug effects
- Oximes/administration & dosage
- Oximes/chemistry
- Oximes/pharmacology
- Oxygen Consumption/drug effects
- Piperidines/administration & dosage
- Piperidines/chemistry
- Piperidines/pharmacology
- Rats, Inbred SHR
- Rats, Inbred WKY
- Rats
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Affiliation(s)
- Orsolya Horvath
- 1st Department of Medicine, University of Pecs, Medical School, Pecs, Hungary
- Szentágothai Research Centre, University of Pecs, Pecs, Hungary
| | - Katalin Ordog
- 1st Department of Medicine, University of Pecs, Medical School, Pecs, Hungary
- Szentágothai Research Centre, University of Pecs, Pecs, Hungary
| | - Kitti Bruszt
- 1st Department of Medicine, University of Pecs, Medical School, Pecs, Hungary
- Szentágothai Research Centre, University of Pecs, Pecs, Hungary
| | - Nikoletta Kalman
- Department of Biochemistry and Medical Chemistry, University of Pecs, Medical School, Pecs, Hungary
| | - Dominika Kovacs
- Department of Biochemistry and Medical Chemistry, University of Pecs, Medical School, Pecs, Hungary
| | - Balazs Radnai
- Department of Biochemistry and Medical Chemistry, University of Pecs, Medical School, Pecs, Hungary
| | - Ferenc Gallyas
- Szentágothai Research Centre, University of Pecs, Pecs, Hungary
- Department of Biochemistry and Medical Chemistry, University of Pecs, Medical School, Pecs, Hungary
- HAS-UP Nuclear-Mitochondrial Interactions Research Group, 1245 Budapest, Hungary
| | - Kalman Toth
- 1st Department of Medicine, University of Pecs, Medical School, Pecs, Hungary
- Szentágothai Research Centre, University of Pecs, Pecs, Hungary
| | - Robert Halmosi
- 1st Department of Medicine, University of Pecs, Medical School, Pecs, Hungary
- Szentágothai Research Centre, University of Pecs, Pecs, Hungary
| | - Laszlo Deres
- 1st Department of Medicine, University of Pecs, Medical School, Pecs, Hungary
- Szentágothai Research Centre, University of Pecs, Pecs, Hungary
- HAS-UP Nuclear-Mitochondrial Interactions Research Group, 1245 Budapest, Hungary
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