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Zhou J, Xia W, Chen J, Han K, Jiang Y, Zhang A, Zhou D, Liu D, Lin J, Cai Y, Chen G, Zhang L, Xu A, Xu Y, Han R, Xia Z. Propofol and salvianolic acid A synergistically attenuated cardiac ischemia-reperfusion injury in diabetic mice via modulating the CD36/AMPK pathway. Burns Trauma 2024; 12:tkad055. [PMID: 38601971 PMCID: PMC11003856 DOI: 10.1093/burnst/tkad055] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 10/14/2023] [Accepted: 10/14/2023] [Indexed: 04/12/2024]
Abstract
Background Prevention of diabetic heart myocardial ischemia-reperfusion (IR) injury (MIRI) is challenging. Propofol attenuates MIRI through its reactive oxygen species scavenging property at high doses, while its use at high doses causes hemodynamic instability. Salvianolic acid A (SAA) is a potent antioxidant that confers protection against MIRI. Both propofol and SAA affect metabolic profiles through regulating Adenosine 5'-monophosphate-activated protein kinase (AMPK). The aim of this study was to investigate the protective effects and underlying mechanisms of low doses of propofol combined with SAA against diabetic MIRI. Methods Diabetes was induced in mice by a high-fat diet followed by streptozotocin injection, and MIRI was induced by coronary artery occlusion and reperfusion. Mice were treated with propofol at 46 mg/kg/h without or with SAA at 10 mg/kg/h during IR. Cardiac origin H9c2 cells were exposed to high glucose (HG) and palmitic acid (PAL) for 24 h in the absence or presence of cluster of differentiation 36 (CD36) overexpression or AMPK gene knockdown, followed by hypoxia/reoxygenation (HR) for 6 and 12 h. Results Diabetes-exacerbated MIRI is evidenced as significant increases in post-ischemic infarction with reductions in phosphorylated (p)-AMPK and increases in CD36 and ferroptosis. Propofol moderately yet significantly attenuated all the abovementioned changes, while propofol plus SAA conferred superior protection against MIRI to that of propofol. In vitro, exposure of H9c2 cells under HG and PAL decreased cell viability and increased oxidative stress that was concomitant with increased levels of ferroptosis and a significant increase in CD36, while p-AMPK was significantly reduced. Co-administration of low concentrations of propofol and SAA at 12.5 μM in H9c2 cells significantly reduced oxidative stress, ferroptosis and CD36 expression, while increasing p-AMPK compared to the effects of propofol at 25 μM. Moreover, either CD36 overexpression or AMPK silence significantly exacerbated HR-induced cellular injuries and ferroptosis, and canceled propofol- and SAA-mediated protection. Notably, p-AMPK expression was downregulated after CD36 overexpression, while AMPK knockdown did not affect CD36 expression. Conclusions Combinational usage of propofol and SAA confers superior cellular protective effects to the use of high-dose propofol alone, and it does so through inhibiting HR-induced CD36 overexpression to upregulate p-AMPK.
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Affiliation(s)
- Jiaqi Zhou
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, No. 57, South Renmin Avenue, Zhanjiang, 524000, China
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Medicine, The University of Hong Kong, Pok Fu Lam Road, Hong Kong, 999077, China
| | - Weiyi Xia
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, No. 57, South Renmin Avenue, Zhanjiang, 524000, China
- Department of Orthopaedics and Traumatology, The University of Hong Kong, Pok Fu Lam Road, Hong Kong, 999077, China
| | - Jiajia Chen
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, No. 57, South Renmin Avenue, Zhanjiang, 524000, China
| | - Kaijia Han
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, No. 57, South Renmin Avenue, Zhanjiang, 524000, China
| | - Yuxin Jiang
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, No. 57, South Renmin Avenue, Zhanjiang, 524000, China
| | - Anyuan Zhang
- Department of Anesthesiology, The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, No. 109 Xueyuan West Road, Wenzhou, Zhejiang, 325027, China
| | - Dongcheng Zhou
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, No. 57, South Renmin Avenue, Zhanjiang, 524000, China
| | - Danyong Liu
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, No. 57, South Renmin Avenue, Zhanjiang, 524000, China
| | - Jiefu Lin
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, No. 57, South Renmin Avenue, Zhanjiang, 524000, China
| | - Yin Cai
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, No. 57, South Renmin Avenue, Zhanjiang, 524000, China
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, No. 11 Yucai Road, hung hom, Kowloon, Hong Kong, 999077, China
| | - Guanghua Chen
- Spinal Division of Orthopedic and Traumatology Center, The Affiliated Hospital of Guangdong Medical University, No. 57 South Renmin Avenue, Zhanjiang 524000, China
| | - Liangqing Zhang
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, No. 57, South Renmin Avenue, Zhanjiang, 524000, China
| | - Aimin Xu
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Medicine, The University of Hong Kong, Pok Fu Lam Road, Hong Kong, 999077, China
| | - Youhua Xu
- Faculty of Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida WaiLong, Taipa, Macao, 999078, China
| | - Ronghui Han
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, No. 57, South Renmin Avenue, Zhanjiang, 524000, China
- Faculty of Chinese Medicine, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida WaiLong, Taipa, Macao, 999078, China
| | - Zhengyuan Xia
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, No. 57, South Renmin Avenue, Zhanjiang, 524000, China
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Medicine, The University of Hong Kong, Pok Fu Lam Road, Hong Kong, 999077, China
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He J, Huang L, Sun K, Li J, Han S, Gao X, Wang QQ, Yang S, Sun W, Gao H. Oleuropein alleviates myocardial ischemia-reperfusion injury by suppressing oxidative stress and excessive autophagy via TLR4/MAPK signaling pathway. Chin Med 2024; 19:59. [PMID: 38589925 PMCID: PMC11003011 DOI: 10.1186/s13020-024-00925-x] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 03/27/2024] [Indexed: 04/10/2024] Open
Abstract
BACKGROUND Myocardial ischemia/reperfusion injury (MIRI) is an important complication of reperfusion therapy, and has a lack of effective prevention and treatment methods. Oleuropein (OP) is a natural strong antioxidant with many protective effects on cardiovascular diseases, but its protective effect on MIRI has not yet been studied in depth. METHODS Tert-Butyl hydroperoxide (tBHP) was used to establish an in vitro oxidative stress model. Cell viability was detected by 3-(4,5)-dimethylthiahiazo (-z-y1)-3,5-di-phenytetrazoliumromide (MTT) and lactate dehydrogenase (LDH). Flow cytometry and fluorescence assays were performed for evaluating the ROS levels and mitochondrial membrane potential (MMP). Immunofluorescence analysis detected the NRF2 nuclear translocation and autophagy indicators. Further, Western blotting and quantitative real-time PCR were performed to evaluate the expression levels of proteins and mRNAs. Molecular docking, CETSA, and molecular interaction analysis explored the binding between OP and TLR4. The protective effects of OP in vivo were determined using a preclinical MIRI rat model. RESULTS OP protected against tBHP-treated injury, reduced ROS levels and reversed the damaged MMP. Mechanistically, OP activated NRF2-related antioxidant pathways, inhibited autophagy and attenuated the TLR4/MAPK signaling pathway in tBHP-treated H9C2 cells with a high binding affinity to TLR4 (KD = 37.5 µM). The TLR4 inhibitor TAK242 showed a similar effect as OP. In vivo, OP could alleviate cardiac ischemia/reperfusion injury and it ameliorated adverse cardiac remodeling. Consistent with in vitro studies, OP inhibited TLR4/MAPK and autophagy pathway and activated NRF2-dependent antioxidant pathways in vivo. CONCLUSION This study shows that OP binds to TLR4 to regulate oxidative stress and autophagy for protecting damaged cardiomyocytes, supporting that OP can be a potential therapeutic agent for MIRI.
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Affiliation(s)
- Jia He
- College of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, 330004, China
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, 530000, China
- Guangxi Engineering Technology Research Center of Advantage Chinese Patent Drug and Ethnic Drug Development, Nanning, 530020, China
| | - Liting Huang
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, 530000, China
- Guangxi Engineering Technology Research Center of Advantage Chinese Patent Drug and Ethnic Drug Development, Nanning, 530020, China
| | - Kaili Sun
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, 530000, China
| | - Jilang Li
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, 530000, China
- Guangxi Engineering Technology Research Center of Advantage Chinese Patent Drug and Ethnic Drug Development, Nanning, 530020, China
| | - Shan Han
- College of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, 330004, China
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, 530000, China
- Research Center for Traditional Chinese Medicine Resources and Ethnic Medicine, Jiangxi University of Chinese Medicine, Nanchang, 330004, China
- Guangxi Engineering Technology Research Center of Advantage Chinese Patent Drug and Ethnic Drug Development, Nanning, 530020, China
| | - Xiang Gao
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, 530000, China
- Guangxi Engineering Technology Research Center of Advantage Chinese Patent Drug and Ethnic Drug Development, Nanning, 530020, China
| | - Qin-Qin Wang
- College of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, 330004, China
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, 530000, China
- Guangxi Engineering Technology Research Center of Advantage Chinese Patent Drug and Ethnic Drug Development, Nanning, 530020, China
| | - Shilin Yang
- College of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, 330004, China.
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, 530000, China.
- Guangxi Engineering Technology Research Center of Advantage Chinese Patent Drug and Ethnic Drug Development, Nanning, 530020, China.
| | - Wen Sun
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China.
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, 100101, China.
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing, 100101, China.
| | - Hongwei Gao
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, 530000, China.
- Guangxi Engineering Technology Research Center of Advantage Chinese Patent Drug and Ethnic Drug Development, Nanning, 530020, China.
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Bréhat J, Leick S, Musman J, Su JB, Eychenne N, Giton F, Rivard M, Barel LA, Tropeano C, Vitarelli F, Caccia C, Leoni V, Ghaleh B, Pons S, Morin D. Identification of a mechanism promoting mitochondrial sterol accumulation during myocardial ischemia-reperfusion: role of TSPO and STAR. Basic Res Cardiol 2024:10.1007/s00395-024-01043-3. [PMID: 38517482 DOI: 10.1007/s00395-024-01043-3] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 02/16/2024] [Accepted: 02/19/2024] [Indexed: 03/24/2024]
Abstract
Hypercholesterolemia is a major risk factor for coronary artery diseases and cardiac ischemic events. Cholesterol per se could also have negative effects on the myocardium, independently from hypercholesterolemia. Previously, we reported that myocardial ischemia-reperfusion induces a deleterious build-up of mitochondrial cholesterol and oxysterols, which is potentiated by hypercholesterolemia and prevented by translocator protein (TSPO) ligands. Here, we studied the mechanism by which sterols accumulate in cardiac mitochondria and promote mitochondrial dysfunction. We performed myocardial ischemia-reperfusion in rats to evaluate mitochondrial function, TSPO, and steroidogenic acute regulatory protein (STAR) levels and the related mitochondrial concentrations of sterols. Rats were treated with the cholesterol synthesis inhibitor pravastatin or the TSPO ligand 4'-chlorodiazepam. We used Tspo deleted rats, which were phenotypically characterized. Inhibition of cholesterol synthesis reduced mitochondrial sterol accumulation and protected mitochondria during myocardial ischemia-reperfusion. We found that cardiac mitochondrial sterol accumulation is the consequence of enhanced influx of cholesterol and not of the inhibition of its mitochondrial metabolism during ischemia-reperfusion. Mitochondrial cholesterol accumulation at reperfusion was related to an increase in mitochondrial STAR but not to changes in TSPO levels. 4'-Chlorodiazepam inhibited this mechanism and prevented mitochondrial sterol accumulation and mitochondrial ischemia-reperfusion injury, underlying the close cooperation between STAR and TSPO. Conversely, Tspo deletion, which did not alter cardiac phenotype, abolished the effects of 4'-chlorodiazepam. This study reveals a novel mitochondrial interaction between TSPO and STAR to promote cholesterol and deleterious sterol mitochondrial accumulation during myocardial ischemia-reperfusion. This interaction regulates mitochondrial homeostasis and plays a key role during mitochondrial injury.
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Affiliation(s)
- Juliette Bréhat
- INSERM U955-IMRB, Team Ghaleh, UPEC, Ecole Nationale Vétérinaire d'Alfort, Faculté de Santé, 8 rue du général Sarrail, 94000, Créteil, France
| | - Shirin Leick
- INSERM U955-IMRB, Team Ghaleh, UPEC, Ecole Nationale Vétérinaire d'Alfort, Faculté de Santé, 8 rue du général Sarrail, 94000, Créteil, France
| | - Julien Musman
- INSERM U955-IMRB, Team Ghaleh, UPEC, Ecole Nationale Vétérinaire d'Alfort, Faculté de Santé, 8 rue du général Sarrail, 94000, Créteil, France
| | - Jin Bo Su
- INSERM U955-IMRB, Team Ghaleh, UPEC, Ecole Nationale Vétérinaire d'Alfort, Faculté de Santé, 8 rue du général Sarrail, 94000, Créteil, France
| | | | - Frank Giton
- Pôle Biologie-Pathologie, IMRB U955, Hôpital Henri Mondor, Créteil, France
| | | | | | - Chiara Tropeano
- Laboratory of Clinical Chemistry, ASST-Brianza Department of Medicine and Surgery, Hospital Pio XI Desio, University of Milano Bicocca, Monza, Italy
| | - Frederica Vitarelli
- Laboratory of Clinical Chemistry, ASST-Brianza Department of Medicine and Surgery, Hospital Pio XI Desio, University of Milano Bicocca, Monza, Italy
| | - Claudio Caccia
- Unit of Medical Genetics and Neurogenetics, Istituto Neurologico Carlo Besta, Fondazione IRCCS, Milan, Italy
| | - Valerio Leoni
- Laboratory of Clinical Chemistry, ASST-Brianza Department of Medicine and Surgery, Hospital Pio XI Desio, University of Milano Bicocca, Monza, Italy
| | - Bijan Ghaleh
- INSERM U955-IMRB, Team Ghaleh, UPEC, Ecole Nationale Vétérinaire d'Alfort, Faculté de Santé, 8 rue du général Sarrail, 94000, Créteil, France
| | - Sandrine Pons
- INSERM U955-IMRB, Team Ghaleh, UPEC, Ecole Nationale Vétérinaire d'Alfort, Faculté de Santé, 8 rue du général Sarrail, 94000, Créteil, France
| | - Didier Morin
- INSERM U955-IMRB, Team Ghaleh, UPEC, Ecole Nationale Vétérinaire d'Alfort, Faculté de Santé, 8 rue du général Sarrail, 94000, Créteil, France.
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Fang L, Tao Y, Che G, Yun Y, Ren M, Liu Y. WSB1, as an E3 ligase, restrains myocardial ischemia-reperfusion injury by activating β-catenin signaling via promoting GSK3β ubiquitination. Mol Med 2024; 30:31. [PMID: 38395742 PMCID: PMC10893653 DOI: 10.1186/s10020-024-00800-3] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 02/15/2024] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND Reperfusion is the most effective strategy for myocardial infarct, but induces additional injury. WD repeat and SOCS box containing protein 1 (WSB1) plays a protective role in ischemic cells. This study aims to investigate the effects of WSB1 on myocardial ischemia-reperfusion (IR) injury. METHODS The myocardial IR was induced by left anterior descending (LAD) ligation for 45 min and subsequent reperfusion. The overexpression of WSB1 was mediated by tail vein injection of AAV9 loaded with WSB1 encoding sequence two weeks before IR surgery. H9c2 myocardial cells underwent oxygen-sugar deprivation/reperfusion (OGD/R) to mimic IR, and transfected with WSB1 overexpression or silencing plasmid to alter the expression of WSB1. RESULTS WSB1 was found highly expressed in penumbra of myocardial IR rats, and the WSB1 overexpression relieved IR-induced cardio dysfunction, myocardial infarct and pathological damage, and cardiomyocyte death in penumbra. The ectopic expression of WSB1 in H9c2 myocardial cells mitigated OGD/R-caused apoptosis, and silencing of WSB1 exacerbated the apoptosis. In addition, WSB1 activated β-catenin signaling, which was deactivated under the ischemic condition. The co-immunoprecipitation results revealed that WSB1 mediated ubiquitination and degradation of glycogen synthase kinase 3 beta (GSK3β) as an E3 ligase in myocardial cells. The effects of WSB1 on myocardial cells under ischemic conditions were abolished by an inhibitor of β-catenin signaling. CONCLUSION WSB1 activated β-catenin pathway by promoting the ubiquitination of GSK3β, and restrained IR-induced myocardial injury. These findings might provide novel insights for clinical treatment of myocardial ischemic patients.
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Affiliation(s)
- Lini Fang
- Department of Function, Sanya Central Hospital (Hainan Third People's Hospital), 1154# Jiefang Fourth Road, Sanya, Hainan Province, China
| | - Yang Tao
- Department of Function, Sanya Central Hospital (Hainan Third People's Hospital), 1154# Jiefang Fourth Road, Sanya, Hainan Province, China
| | - Guoying Che
- Department of Ultrasound Medicine, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Yongzi Yun
- Department of Function, Sanya Central Hospital (Hainan Third People's Hospital), 1154# Jiefang Fourth Road, Sanya, Hainan Province, China
| | - Min Ren
- Ultrasound Department, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, 536# Changle Road, Shanghai, China.
| | - Yujie Liu
- Department of Function, Sanya Central Hospital (Hainan Third People's Hospital), 1154# Jiefang Fourth Road, Sanya, Hainan Province, China.
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An L, Zhong Y, Tan J, Liu Y, Li A, Yang T, Wang S, Liu Y, Gao H. Sevoflurane exerts protection against myocardial ischemia-reperfusion injury and pyroptosis through the circular RNA PAN3/microRNA-29b-3p/stromal cell-derived factor 4 axis. Int Immunopharmacol 2023; 120:110219. [PMID: 37270931 DOI: 10.1016/j.intimp.2023.110219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 04/04/2023] [Accepted: 04/18/2023] [Indexed: 06/06/2023]
Abstract
OBJECTIVE Sevoflurane is suggested to exert protective functions against myocardial ischemia-reperfusion injury (MIRI). However, the particular mechanism remains elusive. Therefore, this research explored the mechanism of sevoflurane in MIRI-induced damage and pyroptosis. METHODS Subsequent to gain-or loss-of-function assays or/and sevoflurane treatment, the MIRI model was developed in rats. Cardiac function and body and heart weight of rats were evaluated, followed by measurement of apoptosis and creatine kinase MB (CK-MB), lactate dehydrogenase (LDH), and pyroptosis-related protein levels. After loss-of-function assays or/and sevoflurane treatment in human cardiomyocytes (HCMs), the hypoxia/reoxygenation (H/R) model was constructed. In HCMs, cell viability, apoptosis, and pyroptosis-related proteins were detected. Circular RNA PAN3 (circPAN3), microRNA (miR)-29b-3p, and stromal cell-derived factor 4 (SDF4) expression was determined in rat myocardial tissues and HCMs. Mechanistically, interactions among circPAN3, miR-29b-3p, and SDF4 were analyzed. RESULTS MIRI modeling increased miR-29b-3p expression and diminished circPAN3 and SDF4 expression in H/R-treated HCMs and MIRI rats, which was nullified by sevoflurane preconditioning. Mechanistically, circPAN3 negatively targeted miR-29b-3p to upregulate SDF4. Moreover, sevoflurane preconditioning reduced heart weight/body weight ratio, LDH, CK-MB, myocardial infarct size, left ventricular end-diastolic pressure, apoptosis, and pyroptosis, while elevating the increase and decrease of left ventricular pressure (±dp/dt max) and left ventricular systolic pressure in MIRI rats. In addition, sevoflurane preconditioning augmented viability while diminishing apoptosis and pyroptosis in H/R-treated HCMs. Moreover, circPAN3 silencing or miR-29b-3p overexpression abrogated alleviatory effects of sevoflurane on myocardial injury and pyroptosis in vitro. CONCLUSION Sevoflurane treatment ameliorated myocardial injury and pyroptosis in MIRI via circPAN3/miR-29b-3p/SDF4 axis.
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Affiliation(s)
- Li An
- School of Anesthesiology, Guizhou Medical University, Guiyang, Guizhou 550025, PR China; Department of Anesthesiology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, PR China; Translational Medicine Research Center of Guizhou Medical University, Guiyang, Guizhou 550025, PR China
| | - Yi Zhong
- Department of Anesthesiology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, PR China
| | - Jian Tan
- Department of Anesthesiology, The Third Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 558004, PR China
| | - Yang Liu
- Department of Anesthesiology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, PR China
| | - Anliang Li
- Department of Anesthesiology, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, PR China
| | - Tianyu Yang
- School of Anesthesiology, Guizhou Medical University, Guiyang, Guizhou 550025, PR China
| | - Shengzhao Wang
- School of Anesthesiology, Guizhou Medical University, Guiyang, Guizhou 550025, PR China
| | - Yanqiu Liu
- Department of Anesthesiology, Guiyang Fourth People's Hospital, Guiyang, Guizhou 550007, PR China.
| | - Hong Gao
- Department of Anesthesiology, Guizhou Hospital of The 1st Affiliated Hospital, Sun Yat-sen University, Guiyang, Guizhou 550025, PR China.
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Huang KY, Liu S, Yu YW, Wu BS, Lin ZH, Zhu CX, Song DY, Xue YJ, Ji KT. 3,4-benzopyrene aggravates myocardial ischemia-reperfusion injury-induced pyroptosis through inhibition of autophagy-dependent NLRP3 degradation. Ecotoxicol Environ Saf 2023; 254:114701. [PMID: 36871353 DOI: 10.1016/j.ecoenv.2023.114701] [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: 08/25/2022] [Revised: 02/13/2023] [Accepted: 02/26/2023] [Indexed: 06/18/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are produced during combustion of organic matter, such as during cigarette smoking, and they exist widely in the environment. Exposure to 3,4-benzo[a]pyrene (BaP), as the most widely studied PAHs, relates to many cardiovascular diseases. However, the underlying mechanism of its involvement remains largely unclear. In this study, we developed a myocardial ischemia-reperfusion (I/R) injury mouse model and an oxygen and glucose deprivation-reoxygenation H9C2 cell model to evaluate the effect of BaP in I/R injury. After BaP exposure, the expression of autophagy-related proteins, the abundance of NLRP3 inflammasomes, and the degree of pyroptosis were measured. Our results show that BaP aggravates myocardial pyroptosis in a autophagy-dependent manner. In addition, we found that BaP activates the p53-BNIP3 pathway via the aryl hydrocarbon receptor to decrease autophagosome clearance. Our findings present new insights into the mechanisms underlying cardiotoxicity and reveal that the p53-BNIP3 pathway, which is involved in autophagy regulation, is a potential therapeutic target for BaP-induced myocardial I/R injury. Because PAHs are omnipresent in daily life, the toxic effects of these harmful substances should not be underestimated.
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Affiliation(s)
- Kai-Yu Huang
- Department of Cardiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Shuai Liu
- Department of Cardiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Yong-Wei Yu
- Intensive Care Unit, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310003, China
| | - Bo-Sen Wu
- Department of Cardiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Zhi-Hui Lin
- Department of Cardiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Chen-Xi Zhu
- Department of Cardiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Dong-Yan Song
- Department of Cardiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Yang-Jing Xue
- Department of Cardiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Kang-Ting Ji
- Department of Cardiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China.
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Liu Z, Liu Z, Zhou H, Zhou Y, Xu X, Li Z, Guo F, Wang Y, Zhou Z, Zhou L, Wang Y, Zhou X, Xia H, Jiang H. Increased sympathetic outflow induced by emotional stress aggravates myocardial ischemia-reperfusion injury via activation of TLR7/MyD88/IRF5 signaling pathway. Inflamm Res 2023. [PMID: 36933018 DOI: 10.1007/s00011-023-01708-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 12/28/2022] [Accepted: 02/10/2023] [Indexed: 03/19/2023] Open
Abstract
BACKGROUND AND OBJECTIVE Emotional stress substantially increases the risk of ischemic cardiovascular diseases. Previous study indicates that sympathetic outflow is increased under emotional stress. We aim to investigate the role of increased sympathetic outflow induced by emotional stress in myocardial ischemia-reperfusion (I/R) injury, and explore the underlying mechanisms. METHODS AND RESULTS We used Designer Receptors Exclusively Activated by Designer Drugs technique to activate the ventromedial hypothalamus (VMH), a critical emotion-related nucleus. The results revealed that emotional stress stimulated by VMH activation increased sympathetic outflow, enhanced blood pressure, aggravated myocardial I/R injury, and exacerbated infarct size. The RNA-seq and molecular detection demonstrated that toll-like receptor 7 (TLR7), myeloid differentiation factor 88 (MyD88), interferon regulatory factor 5 (IRF5), and downstream inflammatory markers in cardiomyocytes were significantly upregulated. Emotional stress-induced sympathetic outflow further exacerbated the disorder of the TLR7/MyD88/IRF5 inflammatory signaling pathway. While inhibition of the signaling pathway partially alleviated myocardial I/R injury aggravated by emotional stress-induced sympathetic outflow. CONCLUSION Increased sympathetic outflow induced by emotional stress activates TLR7/MyD88/IRF5 signaling pathway, ultimately aggravating I/R injury.
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Prem PN, Sivakumar B, Boovarahan SR, Kurian GA. Long-term administration of fisetin was not as effective as short term in ameliorating IR injury in isolated rat heart. Naunyn Schmiedebergs Arch Pharmacol 2022; 395:859-63. [PMID: 35460340 DOI: 10.1007/s00210-022-02239-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 04/03/2022] [Indexed: 12/02/2022]
Abstract
The current study aims to determine the comparative efficacy of fisetin in reducing myocardial ischemia–reperfusion injury (IR) in isolated rat hearts when the drug was given either oral or intraperitoneal (ip) for short-term and long-term administration. Rats treated with fisetin (20 mg/kg-oral/ip) for short (30 min prior to surgery) and long (15 days prior to surgery followed by 1-day washout) duration were subjected to myocardial IR using Langendorf perfusion system. Hemodynamics, cardiac injury, mitochondrial functional assessment, and fisetin levels were estimated. Unlike the long-term administration of fisetin, the short-term treated-rat heart exhibited significant cardioprotection, measured via hemodynamic indices (RPP in mmHg × beats/min × 10 ^ 4: IR — 4 ± 0.1, FIPS — 2.49 ± 0.18, FIPL — 1.87 ± 0.14), reduced infarct size (in % area of infarct: IR — 38 ± 5, FIPS — 17 ± 1, FOS — 14 ± 2), improved mitochondrial ETC enzyme activity (NQR activity in IFM: FIPS — 0.25 ± 0.016, FIPL — 0.20 ± 0.02), and declined oxidative stress (GSH in IFM: FIPS — 1.52 ± 0.14, FIPL — 1.25 ± 0.22). However, no significant difference in the protection was observed between the animals treated with oral or intraperitoneally administered fisetin. Single dose of fisetin administration before IR protocol was more effective than 15 days of fisetin-treated drug followed by 1-day washout, thus may not be suitable for long-term dietary supplement for post-surgical cardiac rehabilitation.
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Gao F, Wang X, Fan T, Luo Z, Ma M, Hu G, Li Y, Liang Y, Lin X, Xu B. LncRNA LINC00461 exacerbates myocardial ischemia-reperfusion injury via microRNA-185-3p/Myd88. Mol Med 2022; 28:33. [PMID: 35272621 PMCID: PMC8908691 DOI: 10.1186/s10020-022-00452-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 01/26/2022] [Indexed: 02/08/2023] Open
Abstract
OBJECTIVE Long non-coding RNAs (lncRNAs) play critically in the pathogenesis of myocardial ischemia-reperfusion (I/R) injury. Thus, it was proposed to investigate the mechanism of LINC00461 in the disease through mediating microRNA-185-3p (miR-185-3p)/myeloid differentiation primary response gene 88 (Myd88) axis. METHODS miR-185-3p, LINC00461 and Myd88 expression in mice with I/R injury was measured. Mice with I/R injury were injected with the gene expression-modified vectors, after which cardiac function, hemodynamics, myocardial enzyme, oxidative stress, and cardiomyocyte apoptosis were analyzed. RESULTS I/R mice showed LINC00461 and Myd88 up-regulation and miR-185-3p down-regulation. Down-regulating LINC00461 or up-regulating miR-185-3p recovered cardiac function, reduced myocardial enzyme levels, and attenuated oxidative stress and cardiomyocyte apoptosis in mice with I/R. miR-185-3p overexpression rescued the promoting effect of LINC00461 upregulation on myocardial injury in I/R mice. CONCLUSION LINC00461 knockdown attenuates myocardial I/R injury via elevating miR-185-3p expression to suppress Myd88 expression.
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Affiliation(s)
- Feng Gao
- Department of Cardiology, Economic Development District, Second Affiliated Hospital of Anhui Medical University, No.678 Furong Road, Hefei, 230601, Anhui, China
| | - Xiaochen Wang
- Department of Cardiology, Economic Development District, Second Affiliated Hospital of Anhui Medical University, No.678 Furong Road, Hefei, 230601, Anhui, China
| | - Tingting Fan
- Department of Cardiology, Economic Development District, Second Affiliated Hospital of Anhui Medical University, No.678 Furong Road, Hefei, 230601, Anhui, China
| | - Zhidan Luo
- Department of Geriatrics, Chongqing People's Hospital, Chongqing, 400013, China
| | - Mengqing Ma
- Department of Cardiology, The First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Shushan District, Hefei, 230022, Anhui, China
| | - Guangquan Hu
- Department of Cardiology, Economic Development District, Second Affiliated Hospital of Anhui Medical University, No.678 Furong Road, Hefei, 230601, Anhui, China
| | - Yue Li
- Department of Cardiology, Economic Development District, Second Affiliated Hospital of Anhui Medical University, No.678 Furong Road, Hefei, 230601, Anhui, China
| | - Yi Liang
- Center for Cardiovascular Regeneration, Houston Methodist Research Institute, 6670 Bertner Ave, Houston, TX, 77030, USA
| | - Xianhe Lin
- Department of Cardiology, The First Affiliated Hospital of Anhui Medical University, No.218 Jixi Road, Shushan District, Hefei, 230022, Anhui, China.
| | - Banglong Xu
- Department of Cardiology, Economic Development District, Second Affiliated Hospital of Anhui Medical University, No.678 Furong Road, Hefei, 230601, Anhui, China
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Li X, Liu L, Jiang W, Liu M, Wang Y, Ma H, Mu N, Wang H. SIRT6 Protects Against Myocardial Ischemia-Reperfusion Injury by Attenuating Aging-Related CHMP2B Accumulation. J Cardiovasc Transl Res 2022; 15:740-753. [PMID: 35235147 DOI: 10.1007/s12265-021-10184-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 09/26/2021] [Accepted: 11/03/2021] [Indexed: 12/15/2022]
Abstract
Impaired autophagic flux induces aging-related ischemia vulnerability, which is the hallmark pathology in cardiac aging. Our previous work has confirmed that the accumulation of charged multivesicular body protein 2B (CHMP2B), a subunit of the ESCRT-III complex, in the heart can impair autophagy flux. However, whether CHMP2B accumulation contributes to aging-related intolerance to ischemia/reperfusion (I/R) injury and the regulatory mechanism for CHMP2B in aged heart remain elusive. The cardiac CHMP2B level was significantly higher in aged human myocardium than that in young myocardium. Increased CHMP2B were shown to inhibit autophagic flux leading to the deterioration of MI/R injury in aged mice hearts. Interestingly, a negative correlation was observed between SIRT6 and CHMP2B expression in human heart samples. Specific activation of SIRT6 suppressed CHMP2B accumulation and ameliorated autophagy flux in aged hearts. Using myocardial-specific SIRT6 heterozygous knockout mice and recovery experiments confirmed that SIRT6 regulated myocardial CHMP2B levels. Finally, activation of SIRT6 decreased acetylation of FoxO1 to promote its transcriptional function on Atrogin-1, a muscle-specific ubiquitin ligase, which subsequently enhanced the degradation of CHMP2B by Atrogin-1. This is a novel mechanism for SIRT6 against aging-related myocardial ischemia vulnerability, particularly by preventing excessive accumulation of autophagy key factors.
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Affiliation(s)
- Xiaokang Li
- Department of Cardiology, Tangdu Hospital, Fourth Military Medical University, No. 1 Xinsi Rd, Xi'an, China
| | - Lin Liu
- Department of Dermatology, Tangdu Hospital, Fourth Military Medical University, No. 1 Xinsi Rd, Xi'an, 710032, China
| | - Wenhua Jiang
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an, China
| | - Manling Liu
- Department of Physiology and Pathophysiology, School of Basic Medicine, Fourth Military Medical University, No. 169 Changle West Rd, Xi'an, China
| | - Yishi Wang
- Department of Physiology and Pathophysiology, School of Basic Medicine, Fourth Military Medical University, No. 169 Changle West Rd, Xi'an, China
| | - Heng Ma
- Department of Physiology and Pathophysiology, School of Basic Medicine, Fourth Military Medical University, No. 169 Changle West Rd, Xi'an, China.
| | - Nan Mu
- Department of Physiology and Pathophysiology, School of Basic Medicine, Fourth Military Medical University, No. 169 Changle West Rd, Xi'an, China.
| | - Haiyan Wang
- Department of Cardiology, Tangdu Hospital, Fourth Military Medical University, No. 1 Xinsi Rd, Xi'an, China.
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11
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Yang Y, Zhao F, Yuan Z, Wang C, Chen K, Xiao W. Inhibition of miR-218-5p reduces myocardial ischemia-reperfusion injury in a Sprague-Dawley rat model by reducing oxidative stress and inflammation through MEF2C/NF-κB pathway. Int Immunopharmacol 2021; 101:108299. [PMID: 34749249 DOI: 10.1016/j.intimp.2021.108299] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 10/14/2021] [Accepted: 10/20/2021] [Indexed: 12/01/2022]
Abstract
Following myocardial ischemia, myocardial reperfusion injury causes oxidative stress (OS) and inflammation, leading to myocardial cell apoptosis and necrosis. Recently, emerging studies have shown that microRNAs (miRNAs) contribute to the pathophysiology associated with myocardial ischemia-reperfusion (I/R). In this study, we conducted both in-vitro and in-vivo experiments to explore the role of miR-218-5p in ischemia-reperfusion (I/R)- or oxygen and glucose deprivation/reperfusion (OGD/R)-mediated cardiomyocyte injury. A total 44 Sprague-Dawley (SD) rats were used, and randomly divided into four groups, control group (n = 11), miR-218-5p-in group (n = 11), I/R group (n = 11), I/R + miR-218-5p-in group (n = 11). Our data showed that miR-218-5p was overexpressed in H9C2 cardiomyocytes under OGD/R treatment. miR-218-5p inhibition reduced the lactate dehydrogenase (LDH) activity and the levels of reactive oxygen species (ROS), malondialdehyde (MDA) and superoxide dismutase (SOD), as well as the expression of tumor necrosis factor alpha (TNF-α), interleukin (IL-1β), and IL-6. Oppositely, miR-218-5p overexpression aggravated OGD/R-mediated damage on H9C2 cells, whereas nuclear factor kappa B (NF-κB) pathway inhibition or myocyte enhancer factor 2C (MEF2C) upregulation reversed miR-218-5p mimics-mediated effects. Bioinformatics analysis predicted that miR-218-5p targeted and dampened its expression, which was testified by the dual-luciferase reporter assay and RNA pull-down assay. In vivo, inhibiting miR-218-5p declined LDH activities and ROS, MDA and SOD levels in rat myocardial tissues under I/R injury, alleviated myocardial fibrosis and inflammatory reactions, and reduced myocardial infarction area. Overall, inhibition of miR-218-5p choked oxidative stress and inflammation in myocardial I/R injury via targeting MEF2C/NF-κB axis, thus relieving the disease progression.
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Affiliation(s)
- Yang Yang
- Department of Cardiology, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, China
| | - Fenglong Zhao
- Department of Cardiology & Nephrology, Wuyi People's Hospital, Wuyi, Hebei 053400, China
| | - Zhe Yuan
- Department of Emergency, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, China
| | - Chuanqiang Wang
- Department of Cardiology, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, China
| | - Ke Chen
- Department of Cardiology, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, China
| | - Wenliang Xiao
- Department of Cardiology, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei 050051, China.
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Deng X, Yang P, Gao T, Liu M, Li X. Allicin attenuates myocardial apoptosis, inflammation and mitochondrial injury during hypoxia-reoxygenation: an in vitro study. BMC Cardiovasc Disord 2021; 21:200. [PMID: 33882833 PMCID: PMC8059159 DOI: 10.1186/s12872-021-01918-6] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 02/11/2021] [Indexed: 01/19/2023] Open
Abstract
Background Myocardial ischemia–reperfusion (IR) injury is a damage due to an initial reduction in blood flow to the heart, preventing it from receiving enough oxygen, and subsequent restoration of blood flow through the opening of an occluded coronary artery producing paradoxical harmful effects. The finding of new therapies to prevent IR is of utmost importance. Allicin is a compound isolated from garlic having the ability to prevent and cure different diseases, and a protective effect on the myocardium was also demonstrated. Therefore, the aim of this study was to evaluate the in vitro protective effect of Allicin against myocardial IR injury on cardiomyocytes. Methods We established an in vitro hypoxia-reoxygenation (HR) model of primary porcine cardiomyocytes to simulate myocardial IR injury. Primary porcine cardiomyocytes were extracted from Mini-musk swines (1 day old). After a period of adaptation of at least 2–3 days, cardiomyocytes in good condition were selected and randomly divided into control group (normal oxygen for 5 h), HR group (2 h of hypoxia/3 h of reoxygenation), and HR + Allicin group (hypoxia/reoxygenation + Allicin treatment). Results After the induction of hypoxia/reoxygenation, Allicin treatment enhanced the cell viability. Moreover, Allicin treatment resulted in a reduction of apoptosis from 13.5 ± 1.2% to 6.11 ± 0.15% compared with the HR group (p < 0.05), and the apoptosis related proteins were regulated as well, with a decreased expression of Bax, cleaved caspase-3 and cytosolic cytochrome C and an increase in Bcl-2 expression in the HR + Allicin group (all p < 0.01). Pro-inflammatory cytokines, such as interleukin-6 and tumor necrosis factor alpha were down-regulated by the treatment with Allicin (both p < 0.01). In addition, it significantly decreased intracellular reactive oxygen species generation (p < 0.01) and reduced the loss of mitochondrial membrane potential (p < 0.01). Furthermore, the expression of PPARγ coactivator-1α and endothelial nitric oxide synthase was up-regulated (both p < 0.01), while the expression of Endothelin-1, hypoxia inducing factor-1α and transforming growth factor beta was down-regulated (all p < 0.01) by Allicin treatment. Conclusions These results suggested that Allicin protected the cardiomyocytes against HR damage by reducing apoptosis, inflammation and mitochondrial injury, thus providing a basis for its potential use in the treatment of myocardial IR. Supplementary Information The online version contains supplementary material available at 10.1186/s12872-021-01918-6.
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Affiliation(s)
- Xinyi Deng
- Peking University China-Japan Friendship School of Clinical Medicine, 2 East Yinghuayuan Street, Hepingli, Beijing, 100029, China.,Department of Integrative Medicine Cardiology, China-Japan Friendship Hospital, Beijing, China
| | - Peng Yang
- Department of Integrative Medicine Cardiology, China-Japan Friendship Hospital, Beijing, China
| | - Tong Gao
- Graduate School, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100730, China.,Department of Integrative Medicine Cardiology, China-Japan Friendship Hospital, Beijing, China
| | - Mengru Liu
- Graduate School, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100730, China.,Department of Integrative Medicine Cardiology, China-Japan Friendship Hospital, Beijing, China
| | - Xianlun Li
- Peking University China-Japan Friendship School of Clinical Medicine, 2 East Yinghuayuan Street, Hepingli, Beijing, 100029, China. .,Graduate School, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100730, China. .,Department of Integrative Medicine Cardiology, China-Japan Friendship Hospital, Beijing, China.
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13
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Shen S, He F, Cheng C, Xu B, Sheng J. Uric acid aggravates myocardial ischemia-reperfusion injury via ROS/NLRP3 pyroptosis pathway. Biomed Pharmacother 2021; 133:110990. [PMID: 33232925 DOI: 10.1016/j.biopha.2020.110990] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [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: 07/20/2020] [Revised: 11/04/2020] [Accepted: 11/05/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND The NOD-like receptor pyrin domain-containing protein 3 (NLRP3) inflammasome activation-mediated pyroptosis pathway has been linked to myocardial ischemia-reperfusion (MI/R) injury. This study explored whether uric acid (UA) aggravates MI/R injury through NLRP3 inflammasome-mediated pyroptosis. METHODS In vivo, a mouse MI/R model was established by ligating the left coronary artery, and a mouse hyperuricemia model was created by intraperitoneal injection of potassium oxonate (PO). Then, the myocardial infarction (MI) size; terminal deoxynucleotidyl transferase dUTP nick end-labeling (TUNEL) immunofluorescence; and serum levels of lactate dehydrogenase (LDH), creatine kinase isoenzyme (CK-MB), and UA, as well as the expression level of pyroptosis-related protein and caspase-3 in heart tissues, were measured. Separately, primary mouse cardiomyocytes were cultured in vitro to create a hypoxia/reoxygenation (H/R) model. We then compared cardiomyocytes viability, TUNEL immunofluorescence, and the levels of LDH, reactive oxygen species (ROS), and pyroptosis-related protein and caspase-3 in cardiomyocytes. RESULTS In vivo, the MI area, levels of CK-MB and LDH, rate of cell death, and pyroptosis-related protein and the expression of caspase-3 were significantly higher in the MI/R group than in the sham group, and high UA levels worsened these changes. In vitro, cardiomyocytes viability was significantly downregulated, and the levels of ROS, LDH, pyroptosis-related protein, caspase-3, and the rate of cardiomyocyte death were significantly higher in the H/R + UA group compared with the HR group. Administration of an NLRP3 inflammasome inhibitor and ROS scavenger reversed these effects. CONCLUSION UA aggravates MI/R-induced activation of the NLRP3 inflammatory cascade and pyroptosis by promoting ROS generation, while inflammasome inhibitors and ROS scavengers partly reverse the injury.
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Affiliation(s)
- ShiChun Shen
- Department of Cardiology, The Second Affiliated Hospital of Anhui Medical University, No. 678 FuRong Road, Hefei, Anhui Province, 230601, China.
| | - Fei He
- Department of Cardiology, The Second Affiliated Hospital of Anhui Medical University, No. 678 FuRong Road, Hefei, Anhui Province, 230601, China.
| | - Cheng Cheng
- Department of Cardiology, The Second Affiliated Hospital of Anhui Medical University, No. 678 FuRong Road, Hefei, Anhui Province, 230601, China.
| | - BangLong Xu
- Department of Cardiology, The Second Affiliated Hospital of Anhui Medical University, No. 678 FuRong Road, Hefei, Anhui Province, 230601, China.
| | - JianLong Sheng
- Department of Cardiology, The Second Affiliated Hospital of Anhui Medical University, No. 678 FuRong Road, Hefei, Anhui Province, 230601, China.
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Pourhanifeh MH, Dehdashtian E, Hosseinzadeh A, Sezavar SH, Mehrzadi S. Clinical Application of Melatonin in the Treatment of Cardiovascular Diseases: Current Evidence and New Insights into the Cardioprotective and Cardiotherapeutic Properties. Cardiovasc Drugs Ther 2020. [PMID: 32926271 DOI: 10.1007/s10557-020-07052-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/04/2020] [Indexed: 12/17/2022]
Abstract
Cardiovascular diseases (CVDs) are the leading global cause of mortality and disability, tending to happen in younger individuals in developed countries. Despite improvements in medical treatments, the therapy and long-term prognosis of CVDs such as myocardial ischemia-reperfusion, atherosclerosis, heart failure, cardiac hypertrophy and remodeling, cardiomyopathy, coronary artery disease, myocardial infarction, and other CVDs threatening human life are not satisfactory enough. Therefore, many researchers are attempting to identify novel potential therapeutic methods for the treatment of CVDs. Melatonin is an anti-inflammatory and antioxidant agent with a wide range of therapeutic properties. Recently, several investigations have been carried out to evaluate its effectiveness and efficiency in CVDs therapy, focusing on mechanistic pathways. Herein, this review aims to summarize current findings of melatonin treatment for CVDs.
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15
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Lu S, Tian Y, Luo Y, Xu X, Ge W, Sun G, Sun X. Iminostilbene, a novel small-molecule modulator of PKM2, suppresses macrophage inflammation in myocardial ischemia-reperfusion injury. J Adv Res 2020; 29:83-94. [PMID: 33842007 PMCID: PMC8020153 DOI: 10.1016/j.jare.2020.09.001] [Citation(s) in RCA: 18] [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: 05/24/2020] [Revised: 08/29/2020] [Accepted: 09/02/2020] [Indexed: 12/18/2022] Open
Abstract
Introduction Inflammation is a key factor in myocardial ischemia/reperfusion (MI/R) injury. Targeting leucocyte-mediated inflammation is an important strategy for MI/R therapy. Iminostilbene (ISB), a simple dibenzoazepine small molecule compound, has a strong anti-neurodegenerative effect. However, no study has shown the cardioprotective effect of ISB. Objectives This study aimed to investigate the role of ISB against MI/R injury and identify its molecular target. Methods To verify the cardiac protection of ISB in vivo and in vitro, we performed rat MI/R surgery and subjected inflammatory modeling of macrophages. In terms of molecular mechanisms, we designed and synthesized a small molecular probe of ISB and employed it on the click chemistry-activity-based protein profiling technique to fish for ISB targets in macrophages. To identify the target, we applied the competitive inhibition assay, surface-plasmon resonance (SPR), cellular thermal shift assay (CETSA), and drug affinity responsive target stability (DARTS) assay. Results In vivo, ISB showed robust anti-myocardial injury activity by improving cardiac function, reducing myocardial infarction, and inhibiting macrophage-mediated inflammation. In vitro, ISB strongly inhibited the transcription and the expression levels of inflammatory cytokines in macrophages. The pyruvate kinase isozyme type M2 (PKM2) was identified as the potential target of ISB through proteomic analysis and the competitive assay was performed for specific binding verification. Further thermodynamic and kinetic experiments showed that ISB was bound to PKM2 in a dose-dependent manner. Moreover, in terms of the biological function of ISB on PKM2, ISB reduced the expression of PKM2, thereby reducing the expression of HIF1α and the phosphorylation of STAT3. Conclusion This study for the first time demonstrated that ISB targeted PKM2 to reduce macrophage inflammation thereby significantly alleviating MI/R injury.
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Affiliation(s)
- Shan Lu
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100193, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, China
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, China
- Key Laboratory of efficacy evaluation of Chinese Medicine against glyeolipid metabolism disorder disease, State Administration of Traditional Chinese Medicine, China
- Key Laboratory of new drug discovery based on Classic Chinese medicine prescription, Chinese Academy of Medical Sciences, China
| | - Yu Tian
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100193, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, China
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, China
- Key Laboratory of efficacy evaluation of Chinese Medicine against glyeolipid metabolism disorder disease, State Administration of Traditional Chinese Medicine, China
- Key Laboratory of new drug discovery based on Classic Chinese medicine prescription, Chinese Academy of Medical Sciences, China
| | - Yun Luo
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100193, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, China
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, China
- Key Laboratory of efficacy evaluation of Chinese Medicine against glyeolipid metabolism disorder disease, State Administration of Traditional Chinese Medicine, China
- Key Laboratory of new drug discovery based on Classic Chinese medicine prescription, Chinese Academy of Medical Sciences, China
| | - Xudong Xu
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100193, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, China
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, China
- Key Laboratory of efficacy evaluation of Chinese Medicine against glyeolipid metabolism disorder disease, State Administration of Traditional Chinese Medicine, China
- Key Laboratory of new drug discovery based on Classic Chinese medicine prescription, Chinese Academy of Medical Sciences, China
| | - Wenxiu Ge
- College of Pharmacy, Harbin University of Commerce, Harbin 150076, Heilongjiang, China
| | - Guibo Sun
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100193, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, China
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, China
- Key Laboratory of efficacy evaluation of Chinese Medicine against glyeolipid metabolism disorder disease, State Administration of Traditional Chinese Medicine, China
- Key Laboratory of new drug discovery based on Classic Chinese medicine prescription, Chinese Academy of Medical Sciences, China
| | - Xiaobo Sun
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100193, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, China
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, China
- Key Laboratory of efficacy evaluation of Chinese Medicine against glyeolipid metabolism disorder disease, State Administration of Traditional Chinese Medicine, China
- Key Laboratory of new drug discovery based on Classic Chinese medicine prescription, Chinese Academy of Medical Sciences, China
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16
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Liu Y, Che G, Di Z, Sun W, Tian J, Ren M. Calycosin-7-O-β-D-glucoside attenuates myocardial ischemia-reperfusion injury by activating JAK2/STAT3 signaling pathway via the regulation of IL-10 secretion in mice. Mol Cell Biochem 2019; 463:175-187. [PMID: 31712941 DOI: 10.1007/s11010-019-03639-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 10/09/2019] [Indexed: 12/17/2022]
Abstract
Calycosin-7-O-β-D-glucoside (CG) is the component of Astragali Radix, and the aim of the present study is to investigate whether CG protects myocardium from I/R-induced damage by the regulation of IL-10/JAK2/STAT3 signaling pathway. H9C2 cells were subjected to I/R treatment and pretreated with 1 μm CG in vitro. In addition, a mouse model of myocardial I/R injury was induced by left anterior descending (LAD) coronary artery ligation and administrated with 30 mg/kg CG by intravenous injection before I/R surgery. In vitro and in vivo results showed that CG up-regulated IL-10 level, activated the JAK2/STAT3 pathway, and protected myocardial cells from I/R-induced apoptosis. The hemodynamic measurement, TTC staining, TUNEL staining, and western blot results in vivo showed that the protective effects of CG on myocardial function and cell apoptosis were all reversed by the IL-10R α neutralizing antibody. CG-induced phosphorylation activation of JAK2/STAT3 signaling pathway was also suppressed by the blocking of IL-10. In summary, these findings suggest that CG might alleviate myocardial I/R injury by activating the JAK2/STAT3 signaling pathway via up-regulation of IL-10 secretion, which provides us insights into the mechanism underlying the protective effect of CG on myocardial I/R injury.
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Affiliation(s)
- Yujie Liu
- Department of Ultrasound Medicine, The Second Affiliated Hospital of Harbin Medical University, 246 Xuefu Road, Harbin, 150001, People's Republic of China
| | - Guoying Che
- Department of Ultrasound Medicine, The Second Affiliated Hospital of Harbin Medical University, 246 Xuefu Road, Harbin, 150001, People's Republic of China
| | - Zhixin Di
- Department of Ultrasound Medicine, The Second Affiliated Hospital of Harbin Medical University, 246 Xuefu Road, Harbin, 150001, People's Republic of China
| | - Weinan Sun
- Department of Ultrasound Medicine, The Second Affiliated Hospital of Harbin Medical University, 246 Xuefu Road, Harbin, 150001, People's Republic of China
| | - Jiawei Tian
- Department of Ultrasound Medicine, The Second Affiliated Hospital of Harbin Medical University, 246 Xuefu Road, Harbin, 150001, People's Republic of China.
| | - Min Ren
- Department of Ultrasound Medicine, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, 536 Changle Road, Shanghai, 200126, People's Republic of China.
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Chi L, Wang N, Yang W, Wang Q, Zhao D, Sun T, Li W. Protection of Myocardial Ischemia-Reperfusion by Therapeutic Hypercapnia: a Mechanism Involving Improvements in Mitochondrial Biogenesis and Function. J Cardiovasc Transl Res 2019; 12:467-77. [PMID: 30980235 DOI: 10.1007/s12265-019-09886-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Accepted: 03/26/2019] [Indexed: 12/14/2022]
Abstract
Previous studies proposed that acidic reperfusion may be a protective strategy for myocardial ischemia-reperfusion therapy with potential of clinical transformation. In this study, we investigated whether therapeutic hypercapnia could mimic acidosis postconditioning in isolated hearts with a 30-min left coronary artery ligation-reperfusion model in rats. Therapeutic hypercapnia (inhalation 20% CO2 for 10 min) is cardioprotective with a strict therapeutic time window and acidity: it reduced the infarct ratio and serum myocardial enzyme and increased the myocardial ATP content. Furthermore, mitochondrial morphology damage, the loss of mitochondrial membrane potential, and the formation of mitochondrial permeability transition pore were effectively inhibited, indicating the improvements in mitochondrial function. The expression of the mitochondrial biogenesis regulators was upregulated simultaneously. These findings indicated therapeutic hypercapnia in animals can mimic ex vivo acidosis postconditioning to alleviate myocardial ischemia-reperfusion injury. The effect is related to improvement in mitochondrial function and regulation of the mitochondrial biogenesis pathway.
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Su HH, Liao JM, Wang YH, Chen KM, Lin CW, Lee IH, Li YJ, Huang JY, Tsai SK, Yen JC, Huang SS. Exogenous GDF11 attenuates non-canonical TGF-β signaling to protect the heart from acute myocardial ischemia-reperfusion injury. Basic Res Cardiol 2019; 114:20. [PMID: 30900023 DOI: 10.1007/s00395-019-0728-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 03/14/2019] [Indexed: 12/13/2022]
Abstract
Growth differentiation factor 11 (GDF11) is a member of the transforming growth factor beta 1 (TGF-β1) superfamily that reverses age-related cardiac hypertrophy, improves muscle regeneration and angiogenesis, and maintains progenitor cells in injured tissue. Recently, targeted myocardial delivery of the GDF11 gene in aged mice was found to reduce heart failure and enhance the proliferation of cardiac progenitor cells after myocardial ischemia-reperfusion (I-R). No investigations have as yet explored the cardioprotective effect of exogenous recombinant GDF11 in acute I-R injury, despite the convenience of its clinical application. We sought to determine whether exogenous recombinant GDF11 protects against acute myocardial I-R injury and investigate the underlying mechanism in Sprague-Dawley rats. We found that GDF11 reduced arrhythmia severity and successfully attenuated myocardial infarction; GDF11 also increased cardiac function after I-R, enhanced HO-1 expression and decreased oxidative damage. GDF11 activated the canonical TGF-β signaling pathway and inactivated the non-canonical pathways, ERK and JNK signaling pathways. Moreover, administration of GDF11 prior to reperfusion protected the heart from reperfusion damage. Notably, pretreatment with the activin-binding protein, follistatin (FST), inhibited the cardioprotective effects of GDF11 by blocking its activation of Smad2/3 signaling and its inactivation of detrimental TGF-β signaling. Our data suggest that exogenous GDF11 has cardioprotective effects and may have morphologic and functional recovery in the early stage of myocardial I-R injury. GDF11 may be an innovative therapeutic approach for reducing myocardial I-R injury.
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Liu S, Ai Q, Feng K, Li Y, Liu X. The cardioprotective effect of dihydromyricetin prevents ischemia-reperfusion-induced apoptosis in vivo and in vitro via the PI3K/Akt and HIF-1α signaling pathways. Apoptosis 2018; 21:1366-1385. [PMID: 27738772 DOI: 10.1007/s10495-016-1306-6] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Reperfusion therapy is widely used to treat acute myocardial infarction (AMI). However, further injury to the heart induced by rapidly initiating reperfusion is often encountered in clinical practice. A lack of pharmacological strategies in clinics limits the prognosis of patients with myocardial ischemia-reperfusion injury (MIRI). Dihydromyricetin (DMY) is one of the most abundant components in vine tea, commonly known as the tender stems and leaves of Ampelopsis grossedentata. The aim of this study was to evaluate the cardioprotection of DMY against myocardial ischemia-reperfusion (I/R) injury and to further investigate the underlying mechanism. An I/R injury was induced by left anterior descending coronary artery occlusion in adult male rats in vivo and a hypoxia-reoxygenation (H/R) injury in H9c2 cardiomyocytes in vitro. We found that DMY pretreatment provided significant protection against I/R-induced injury, including enhanced antioxidant capacity and inhibited apoptosis in vivo and in vitro. This effect correlated with the activation of the PI3K/Akt and HIF-1α signaling pathways. Conversely, blocking Akt activation with the PI3K inhibitor LY294002 effectively suppressed the protective effects of DMY against I/R-induced injury. In addition, the PI3K inhibitor partially blocked the effects of DMY on the upregulation of Bcl-2, Bcl-xl, procaspase-3, -8, and -9 protein expression and the downregulation of HIF-1α, Bnip3, Bax, Cyt-c, cleaved caspase-3, -8, and -9 protein expression. Collectively, these results showed that DMY decreased the apoptosis and necrosis by I/R treatment, and PI3K/Akt and HIF-1α plays a crucial role in protection during this process. These observations indicate that DMY has the potential to exert cardioprotective effects against I/R injury and the results might be important for the clinical efficacy of AMI treatment.
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Affiliation(s)
- Shasha Liu
- Pharmacy Department, Xiangtan Central Hospital, No. 120, Heping Road, Yuhu District, Xiangtan, 411100, People's Republic of China
| | - Qidi Ai
- School of Pharmaceutical Science, Hunan University of Chinese Medicine, Changsha, 410208, People's Republic of China
| | - Kai Feng
- Oral Surgery, Dalian Stomatological Hospital, Dalian, 116021, People's Republic of China
| | - Yubing Li
- Pharmacy Department, Dalian (Municipal) Friendship Hospital, Dalian, 116001, People's Republic of China
| | - Xiang Liu
- Pharmacy Department, Xiangtan Central Hospital, No. 120, Heping Road, Yuhu District, Xiangtan, 411100, People's Republic of China.
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Abstract
Ligation of the left anterior descending (LAD) coronary artery in the mouse heart is a widely used model to simulate myocardial infarction and ischemia-reperfusion injury. Here we describe a ligation technique routinely performed in our laboratory to induce myocardial infarction that may be used to study ischemia-reperfusion injury in the myocardium. The methods described enhance location of the LAD coronary artery to allow for accurate ligation, thus increasing reproducibility of infarct size and location.
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Affiliation(s)
- Zhaobin Xu
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Kevin E McElhanon
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Eric X Beck
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Noah Weisleder
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, Ohio State University Wexner Medical Center, Columbus, OH, USA.
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Hooshdaran B, Kolpakov MA, Guo X, Miller SA, Wang T, Tilley DG, Rafiq K, Sabri A. Dual inhibition of cathepsin G and chymase reduces myocyte death and improves cardiac remodeling after myocardial ischemia reperfusion injury. Basic Res Cardiol 2017; 112:62. [PMID: 28913553 DOI: 10.1007/s00395-017-0652-z] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 09/08/2017] [Indexed: 12/30/2022]
Abstract
Early reperfusion of ischemic cardiac tissue increases inflammatory cell infiltration which contributes to cardiomyocyte death and loss of cardiac function, referred to as ischemia/reperfusion (IR) injury. Neutrophil- and mast cell-derived proteases, cathepsin G (Cat.G) and chymase, are released early after IR, but their function is complicated by potentially redundant actions and targets. This study investigated whether a dual inhibition of Cat.G and chymase influences cardiomyocyte injury and wound healing after experimental IR in mice. Treatment with a dual Cat.G and chymase inhibitor (DCCI) immediately after reperfusion blocked cardiac Cat.G and chymase activity induced after IR, which resulted in decreased immune response in the infarcted heart. Mice treated with DCCI had less myocardial collagen deposition and showed preserved ventricular function at 1 and 7 days post-IR compared with vehicle-treated mice. DCCI treatment also significantly attenuated focal adhesion (FA) complex disruption and myocyte degeneration after IR. Treatment of isolated cardiomyocytes with Cat.G or chymase significantly promoted FA signaling downregulation, myofibril degeneration and myocyte apoptosis. Conversely, treatment of cardiac fibroblasts with Cat.G or chymase induced FA signaling activation and increased their migration and differentiation to myofibroblasts. These opposite responses in cardiomyocytes and fibroblasts were blocked by treatment with DCCI. These findings show that Cat.G and chymase are key mediators of myocyte apoptosis and fibroblast migration and differentiation that play a role in adverse cardiac remodeling and function post-IR. Thus, dual targeting of neutrophil- and mast cell-derived proteases could be used as a novel therapeutic strategy to reduce post-IR inflammation and improve cardiac remodeling.
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Chang X, Zhang K, Zhou R, Luo F, Zhu L, Gao J, He H, Wei T, Yan T, Ma C. Cardioprotective effects of salidroside on myocardial ischemia-reperfusion injury in coronary artery occlusion-induced rats and Langendorff-perfused rat hearts. Int J Cardiol 2016; 215:532-44. [PMID: 27155549 DOI: 10.1016/j.ijcard.2016.04.108] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 04/11/2016] [Indexed: 12/11/2022]
Abstract
BACKGROUND/OBJECTIVES The current study was designed to investigate the protective role of salisroside on rats through the study of energy metabolism homeostasis and inflammation both in ex vivo and in vivo. METHODS Energy metabolism homeostasis and inflammation injury were respectively assessed in global ischemia of isolated hearts and coronary artery ligated rats. RESULTS Excessive release of cardiac enzymes and pro-inflammatory cytokines was inhibited by salidroside in coronary artery occlusion-induced rats. ST segment was also restored with the treatment of salidroside. Triphenyltetrazolium chloride staining (TTC) staining and pathological analysis showed that salidroside could significantly alleviate myocardial injury in vivo. Accumulated data in ex vivo indicated that salidroside improved heart function recovery, which was reflected by enhanced myocardial contractility and coronary flow in isolated hearts. The contents of ATP and glycogen both in ex vivo and in vivo were restored by salidroside compared with those in the model group. Besides, the expressions of p-AMPK, PPAR-α and PGC-1α in rats and isolated hearts subjected to salidroside were significantly elevated, while the levels of p-NF-κBp65, p-IκBα, p-IKKα and p-IKKβ were dramatically reduced by salidroside. CONCLUSIONS The present study comprehensively elaborated the protective effects of salidroside on myocardial injury and demonstrated that AMPK/PGC-1α and AMPK/NF-κB signaling cascades were implicated in the myocardial ischemia-reperfusion injury (I/R) model.
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Affiliation(s)
- Xiayun Chang
- Department of Physiology and Pharmacology, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, China
| | - Kai Zhang
- Department of Pharmacology of Chinese Materia Medica, China Pharmaceutical University, Nanjing 210009, China
| | - Rui Zhou
- Department of Physiology and Pharmacology, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, China
| | - Fen Luo
- Department of Physiology and Pharmacology, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, China
| | - Lingpeng Zhu
- Department of Physiology and Pharmacology, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, China
| | - Jin Gao
- Department of Physiology and Pharmacology, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, China
| | - He He
- Department of Physiology and Pharmacology, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, China
| | - Tingting Wei
- Department of Physiology and Pharmacology, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, China
| | - Tianhua Yan
- Department of Physiology and Pharmacology, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, China.
| | - Chunhua Ma
- Department of Physiology and Pharmacology, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, China
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Liu X, Zhang C, Qian L, Zhang C, Wu K, Yang C, Yan D, Wu X, Shi J. NF45 inhibits cardiomyocyte apoptosis following myocardial ischemia-reperfusion injury. Pathol Res Pract 2015; 211:955-62. [PMID: 26573128 DOI: 10.1016/j.prp.2015.09.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 08/11/2015] [Accepted: 09/22/2015] [Indexed: 11/19/2022]
Abstract
Cardiomyocyte apoptosis, which occurs during ischemia and reperfusion injury, can cause irreversible damage to cardiac function. There is accumulating evidence that nuclear factor 45 (NF45) and regulatory pathways are important in understanding reparative processes in the myocardium. NF45 is a multifunctional regulator of gene expression that participates in the regulation of DNA break repair. Recently, NF45 has been proved to be associated with tumor cell apoptosis in various human malignancies. However, the underlying mechanism of NF45 regulating myocardial ischemia-reperfusion (I/R) injury remains unclear. In this study, western blot showed that NF45 expression decreased after myocardial I/R in vivo. Double immunofluorescent staining revealed that NF45, located in the nucleus of cardiomyocyes, was correlated with cardiomyocyte apoptosis. Furthermore, NF45 expression decreased in H9c2 cells after hypoxia-reoxygenation (H/R) treatment in vitro, which was in line with the results in vivo. Overexpression of NF45 in H9c2 cells reduced cell apoptosis, as evidenced by increased Bcl-2 level, as well as decreased cleaved caspase-3, p53 and p21 expression. The expression of NF45 was reduced by LY294002 (a PI3K/Akt inhibitor), but not SB203580 (a p38 inhibitor), suggesting that NF45 prevented H/R-induced H9c2 cell apoptosis via PI3K/Akt pathway. Our data may supply a novel molecular target for acute myocardial infarction (AMI) therapy.
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Affiliation(s)
- Xiaojuan Liu
- Department of Pathogen Biology, Medical College, Nantong University, Nantong, China; Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University, Nantong, China
| | - Chi Zhang
- Department of Cardiology, Affiliated Hospital of Nantong University, Nantong, China; Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University, Nantong, China
| | - Long Qian
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong, China; Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University, Nantong, China
| | - Chao Zhang
- Department of Cardiology, Affiliated Hospital of Nantong University, Nantong, China; Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University, Nantong, China
| | - Kunpeng Wu
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong, China; Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University, Nantong, China
| | - Chen Yang
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong, China; Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University, Nantong, China
| | - Daliang Yan
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong, China; Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University, Nantong, China
| | - Xiang Wu
- Department of Cardiology, Affiliated Hospital of Nantong University, Nantong, China; Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University, Nantong, China.
| | - Jiahai Shi
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong, China; Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Medical College, Nantong University, Nantong, China.
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24
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Klein LE, Cui L, Gong Z, Su K, Muzumdar R. A humanin analog decreases oxidative stress and preserves mitochondrial integrity in cardiac myoblasts. Biochem Biophys Res Commun 2013; 440:197-203. [PMID: 23985350 DOI: 10.1016/j.bbrc.2013.08.055] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2013] [Accepted: 08/17/2013] [Indexed: 02/07/2023]
Abstract
A potent analog (HNG) of the endogenous peptide humanin protects against myocardial ischemia-reperfusion (MI-R) injury in vivo, decreasing infarct size and improving cardiac function. Since oxidative stress contributes to the damage from MI-R we tested the hypotheses that: (1) HNG offers cardioprotection through activation of antioxidant defense mechanisms leading to preservation of mitochondrial structure and that, (2) the activity of either of a pair of non-receptor tyrosine kinases, c-Abl and Arg is required for this protection. Rat cardiac myoblasts (H9C2 cells) were exposed to nanomolar concentrations of HNG and to hydrogen peroxide (H2O2). Cells treated with HNG in the presence of H2O2 demonstrated reduced intracellular reactive oxygen species (ROS), preserved mitochondrial membrane potential, ATP levels and mitochondrial structure. HNG induced activation of catalase and glutathione peroxidase (GPx) within 5 min and decreased the ratio of oxidized to reduced glutathione within 30 min. siRNA knockdown of both Abl and Arg, but neither alone, abolished the HNG-mediated reduction of ROS in myoblasts exposed to H2O2. These findings demonstrate an HNG-mediated, Abl- and Arg-dependent, rapid and sustained activation of critical cellular defense systems and attenuation of oxidative stress, providing mechanistic insights into the observed HNG-mediated cardioprotection in vivo.
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Affiliation(s)
- Laura E Klein
- Department of Pediatrics, Albert Einstein College of Medicine, Bronx, NY 10461, United States
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25
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Nicholson CK, Lambert JP, Chow CW, Lefer DJ, Calvert JW. Chronic exercise downregulates myocardial myoglobin and attenuates nitrite reductase capacity during ischemia-reperfusion. J Mol Cell Cardiol 2013; 64:1-10. [PMID: 23962643 DOI: 10.1016/j.yjmcc.2013.08.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Revised: 07/22/2013] [Accepted: 08/07/2013] [Indexed: 01/31/2023]
Abstract
The infarct sparing effects of exercise are evident following both long-term and short-term training regimens. Here we compared the infarct-lowering effects of nitrite therapy, voluntary exercise, and the combination of both following myocardial ischemia-reperfusion (MI/R) injury. We also compared the degree to which each strategy increased cardiac nitrite levels, as well as the effects of each strategy on the nitrite reductase activity of the heart. Mice subjected to voluntary wheel running (VE) for 4weeks displayed an 18% reduction in infarct size when compared to sedentary mice, whereas mice administered nitrite therapy (25mg/L in drinking water) showed a 53% decrease. However, the combination of VE and nitrite exhibited no further protection than VE alone. Although the VE and nitrite therapy mice showed similar nitrite levels in the heart, cardiac nitrite reductase activity was significantly reduced in the VE mice. Additionally, the cardiac protein expression of myoglobin, a known nitrite reductase, was also reduced after VE. Further studies revealed that cardiac NFAT activity was lower after VE due to a decrease in calcineurin activity and an increase in GSK3β activity. These data suggest that VE downregulates cardiac myoglobin levels by inhibiting calcineurin/NFAT signaling. Additionally, these results suggest that the modest infarct sparing effects of VE are the result of a decrease in the hearts ability to reduce nitrite to nitric oxide during MI/R.
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Affiliation(s)
- Chad K Nicholson
- Department of Surgery, Division of Cardiothoracic Surgery, Carlyle Fraser Heart Center, Emory University School of Medicine, Atlanta, GA 30308, USA
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