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Zhu Y, Chen Y, Zu Y. Leveraging a neutrophil-derived PCD signature to predict and stratify patients with acute myocardial infarction: from AI prediction to biological interpretation. J Transl Med 2024; 22:612. [PMID: 38956669 PMCID: PMC11221097 DOI: 10.1186/s12967-024-05415-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 06/19/2024] [Indexed: 07/04/2024] Open
Abstract
BACKGROUND Programmed cell death (PCD) has recently been implicated in modulating the removal of neutrophils recruited in acute myocardial infarction (AMI). Nonetheless, the clinical significance and biological mechanism of neutrophil-related PCD remain unexplored. METHODS We employed an integrative machine learning-based computational framework to generate a predictive neutrophil-derived PCD signature (NPCDS) within five independent microarray cohorts from the peripheral blood of AMI patients. Non-negative matrix factorization was leveraged to develop an NPCDS-based AMI subtype. To elucidate the biological mechanism underlying NPCDS, we implemented single-cell transcriptomics on Cd45+ cells isolated from the murine heart of experimental AMI. We finally conducted a Mendelian randomization (MR) study and molecular docking to investigate the therapeutic value of NPCDS on AMI. RESULTS We reported the robust and superior performance of NPCDS in AMI prediction, which contributed to an optimal combination of random forest and stepwise regression fitted on nine neutrophil-related PCD genes (MDM2, PTK2B, MYH9, IVNS1ABP, MAPK14, GNS, MYD88, TLR2, CFLAR). Two divergent NPCDS-based subtypes of AMI were revealed, in which subtype 1 was characterized as inflammation-activated with more vibrant neutrophil activities, whereas subtype 2 demonstrated the opposite. Mechanically, we unveiled the expression dynamics of NPCDS to regulate neutrophil transformation from a pro-inflammatory phase to an anti-inflammatory phase in AMI. We uncovered a significant causal association between genetic predisposition towards MDM2 expression and the risk of AMI. We also found that lidoflazine, isotetrandrine, and cepharanthine could stably target MDM2. CONCLUSION Altogether, NPCDS offers significant implications for prediction, stratification, and therapeutic management for AMI.
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Affiliation(s)
- Yihao Zhu
- International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, 201306, People's Republic of China
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, People's Republic of China
| | - Yuxi Chen
- International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, 201306, People's Republic of China
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, People's Republic of China
| | - Yao Zu
- International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, 201306, People's Republic of China.
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, People's Republic of China.
- Marine Biomedical Science and Technology Innovation Platform of Lin-Gang Special Area, Shanghai, 201306, People's Republic of China.
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2
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Jiang L, Xiong W, Yang Y, Qian J. Insight into Cardioprotective Effects and Mechanisms of Dexmedetomidine. Cardiovasc Drugs Ther 2024:10.1007/s10557-024-07579-9. [PMID: 38869744 DOI: 10.1007/s10557-024-07579-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/17/2024] [Indexed: 06/14/2024]
Abstract
PURPOSE Cardiovascular disease remains the leading cause of death worldwide. Dexmedetomidine is a highly selective α2 adrenergic receptor agonist with sedative, analgesic, anxiolytic, and sympatholytic properties, and several studies have shown its possible protective effects in cardiac injury. The aim of this review is to further elucidate the underlying cardioprotective mechanisms of dexmedetomidine, thus suggesting its potential in the clinical management of cardiac injury. RESULTS AND CONCLUSION Our review summarizes the findings related to the involvement of dexmedetomidine in cardiac injury and discusses the results in the light of different mechanisms. We found that numerous mechanisms may contribute to the cardioprotective effects of dexmedetomidine, including the regulation of programmed cell death, autophagy and fibrosis, alleviation of inflammatory response, endothelial dysfunction and microcirculatory derangements, improvement of mitochondrial dysregulation, hemodynamics, and arrhythmias. Dexmedetomidine may play a promising and beneficial role in the treatment of cardiovascular disease.
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Affiliation(s)
- Leyu Jiang
- Department of Anesthesiology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Wei Xiong
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
| | - Yuqiao Yang
- Department of Anesthesiology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Jinqiao Qian
- Department of Anesthesiology, First Affiliated Hospital of Kunming Medical University, Kunming, China.
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3
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Wu A, Zhong C, Song X, Yuan W, Tang M, Shu T, Huang H, Yang P, Liu Q. The activation of LBH-CRYAB signaling promotes cardiac protection against I/R injury by inhibiting apoptosis and ferroptosis. iScience 2024; 27:109510. [PMID: 38660406 PMCID: PMC11039335 DOI: 10.1016/j.isci.2024.109510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 12/29/2023] [Accepted: 03/13/2024] [Indexed: 04/26/2024] Open
Abstract
Myocardial ischemia-reperfusion (I/R) injury stands out among cardiovascular diseases, and current treatments are considered unsatisfactory. For cardiomyocytes (CMs) in ischemic tissues, the upregulation of Limb-bud and Heart (LBH) and αB-crystallin (CRYAB) and their subsequent downregulation in the context of cardiac fibrosis have been verified in our previous research. Here, we focused on the effects and mechanisms of activated LBH-CRYAB signaling on damaged CMs during I/R injury, and confirmed the occurrence of mitochondrial apoptosis and ferroptosis during I/R injury. The application of inhibitors, ectopic expression vectors, and knockout mouse models uniformly verified the role of LBH in alleviating both apoptosis and ferroptosis of CMs. p53 was identified as a mutual downstream effector for both LBH-CRYAB-modulated apoptosis and ferroptosis inhibition. In mouse models, LBH overexpression was confirmed to exert enhanced cardiac protection against I/R-induced apoptosis and ferroptosis, suggesting that LBH could serve as a promising target for the development of I/R therapy.
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Affiliation(s)
- Anbiao Wu
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Laboratory of Heart Center, Department of Cardiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, People’s Republic of China
- Beijing Institute of Basic Medical Sciences, Beijing 100850, People’s Republic of China
| | - Chongbin Zhong
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Laboratory of Heart Center, Department of Cardiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, People’s Republic of China
| | - Xudong Song
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Laboratory of Heart Center, Department of Cardiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, People’s Republic of China
| | - Wen Yuan
- Experimental Animal Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, People’s Republic of China
| | - Mintian Tang
- Experimental Animal Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, People’s Republic of China
| | - Tao Shu
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Laboratory of Heart Center, Department of Cardiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, People’s Republic of China
| | - Houda Huang
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Laboratory of Heart Center, Department of Cardiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, People’s Republic of China
| | - Pingzhen Yang
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Laboratory of Heart Center, Department of Cardiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, People’s Republic of China
| | - Qicai Liu
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Laboratory of Heart Center, Department of Cardiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, People’s Republic of China
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4
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Shao S, Zheng Y, Fu Z, Wang J, Zhang Y, Wang C, Qi X, Gong T, Ma L, Lin X, Yu H, Yuan S, Wan Y, Zhang H, Yi M. Ventral hippocampal CA1 modulates pain behaviors in mice with peripheral inflammation. Cell Rep 2023; 42:112017. [PMID: 36662622 DOI: 10.1016/j.celrep.2023.112017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 09/12/2022] [Accepted: 01/06/2023] [Indexed: 01/21/2023] Open
Abstract
Chronic pain is one of the most significant medical problems throughout the world. Recent evidence has confirmed the hippocampus as an active modulator of pain chronicity, but the underlying mechanisms remain unclear. Using in vivo electrophysiology, we identify a neural ensemble in the ventral hippocampal CA1 (vCA1) that shows inhibitory responses to noxious but not innocuous stimuli. Following peripheral inflammation, this ensemble becomes responsive to innocuous stimuli, representing hypersensitivity. Mimicking the inhibition of vCA1 neurons using chemogenetics induces chronic pain-like behaviors in naive mice, whereas activating vCA1 neurons in mice with peripheral inflammation results in a reduction of pain-related behaviors. Pathway-specific manipulation of vCA1 projections to basolateral amygdala (BLA) and infralimbic cortex (IL) shows that these pathways are differentially involved in pain modulation at different temporal stages of chronic inflammatory pain. These results confirm a crucial role of the vCA1 and its circuits in modulating the development of chronic pain.
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Affiliation(s)
- Shan Shao
- Neuroscience Research Institute and Department of Neurobiology, School of Basic Medical Sciences, Peking University, Beijing 100083, P.R. China
| | - Yawen Zheng
- Neuroscience Research Institute and Department of Neurobiology, School of Basic Medical Sciences, Peking University, Beijing 100083, P.R. China
| | - Zibing Fu
- Neuroscience Research Institute and Department of Neurobiology, School of Basic Medical Sciences, Peking University, Beijing 100083, P.R. China
| | - Jiaxin Wang
- Neuroscience Research Institute and Department of Neurobiology, School of Basic Medical Sciences, Peking University, Beijing 100083, P.R. China
| | - Yu Zhang
- Neuroscience Research Institute and Department of Neurobiology, School of Basic Medical Sciences, Peking University, Beijing 100083, P.R. China; Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences (CAMS), Comparative Medicine Center, Peking Union Medical College (PUMC), Beijing 100021, P.R. China
| | - Cheng Wang
- Neuroscience Research Institute and Department of Neurobiology, School of Basic Medical Sciences, Peking University, Beijing 100083, P.R. China; Chinese Institute for Brain Research, Beijing 102206, P.R. China
| | - Xuetao Qi
- Neuroscience Research Institute and Department of Neurobiology, School of Basic Medical Sciences, Peking University, Beijing 100083, P.R. China
| | - Tingting Gong
- Neuroscience Research Institute and Department of Neurobiology, School of Basic Medical Sciences, Peking University, Beijing 100083, P.R. China
| | - Longyu Ma
- Neuroscience Research Institute and Department of Neurobiology, School of Basic Medical Sciences, Peking University, Beijing 100083, P.R. China
| | - Xi Lin
- Department of Civil Engineering, Tsinghua University, Beijing 100084, P.R. China
| | - Haitao Yu
- Department of Pathophysiology, Key Laboratory of Ministry of Education for Neurological Disorders, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, P.R. China
| | - Shulu Yuan
- Neuroscience Research Institute and Department of Neurobiology, School of Basic Medical Sciences, Peking University, Beijing 100083, P.R. China
| | - You Wan
- Neuroscience Research Institute and Department of Neurobiology, School of Basic Medical Sciences, Peking University, Beijing 100083, P.R. China; Key Laboratory for Neuroscience, Ministry of Education / National Health Commission, Peking University, Beijing 100083, P.R. China
| | - Haolin Zhang
- Department of Traditional Chinese Medicine, Peking University Third Hospital, Beijing 100191, P.R. China.
| | - Ming Yi
- Neuroscience Research Institute and Department of Neurobiology, School of Basic Medical Sciences, Peking University, Beijing 100083, P.R. China; Key Laboratory for Neuroscience, Ministry of Education / National Health Commission, Peking University, Beijing 100083, P.R. China.
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Li X, Guo D, Zhou W, Hu Y, Zhou H, Chen Y. The Potential Prognostic, Diagnostic and Therapeutic Targets for Recurrent Arrhythmias in Patients with Coronary Restenosis and Reocclusions After Coronary Stenting. Curr Pharm Des 2022; 28:3500-3512. [PMID: 36424794 DOI: 10.2174/1381612829666221124110445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 10/07/2022] [Accepted: 10/13/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND The interplay of oxidative stress, proinflammatory microparticles, and proinflammatory cytokines in recurrent arrhythmias is unknown in elderly patients with coronary restenosis and reocclusions after coronary stenting. OBJECTIVE This research sought to investigate the potential diagnostic and therapeutic targets for recurrent arrhythmias in patients with coronary restenosis and reocclusions after coronary stenting. METHODS We examined whether oxidative stress, proinflammatory microparticles, and proinflammatory cytokines could have effects that lead to recurrent arrhythmias in elderly patients with coronary restenosis and reocclusions. We measured the levels of malondialdehyde (MDA), CD31 + endothelial microparticle (CD31 EMP), CD62E + endothelial microparticle (CD62E + EMP), high-sensitivity C-reactive protein (hs-CRP), interleukin- 1β (IL-1β), interleukin-6 (IL-6), interleukin-8 (IL-8) and tumor necrosis factor-α (TNF-α), as well as oxidized low-density lipoprotein (OX-LDL), and assessed the effects of relationship between oxidative stress, proinflammatory microparticles, and proinflammatory cytokines on recurrent atrial and ventricular arrhythmias in elderly patients with coronary restenosis and reocclusions after coronary stenting. RESULTS The levels of CD31 + EMP, CD62E + EMP, MDA, hs-CRP, IL-1β, IL-6, IL-8, TNF-α and OX-LDL were found to be increased significantly in coronary restenosis + recurrent atrial arrhythmia group compared to without coronary restenosis and coronary restenosis + without recurrent atrial arrhythmia groups, respectively (P < 0.001). Patients in the coronary reocclusion + recurrent ventricular arrhythmia group also exhibited significantly increased levels of CD31 + EMP, CD62E + EMP, MDA, hs-CRP, IL-1β, IL-6, IL-8, TNF-α and OXLDL compared to without coronary reocclusion and coronary reocclusion + without recurrent ventricular arrhythmia groups, respectively (P < 0.001). CONCLUSION Proinflammatory microparticles, proinflammatory cytokines, and oxidative stress might act as potential targets for recurrent arrhythmias in patients with coronary restenosis and reocclusions after coronary stenting.
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Affiliation(s)
- Xia Li
- Department of Geriatrics, Second People's Hospital of Huai'an, Xiamen Road Branch Hospital, The Affiliated Huaian Hospital of Xuzhou Medical University, Huai'an 223002, China
| | - Dianxuan Guo
- Department of Geriatrics, Second People's Hospital of Huai'an, Xiamen Road Branch Hospital, The Affiliated Huaian Hospital of Xuzhou Medical University, Huai'an 223002, China
| | - Wenhang Zhou
- Department of Geriatrics, Second People's Hospital of Huai'an, Xiamen Road Branch Hospital, The Affiliated Huaian Hospital of Xuzhou Medical University, Huai'an 223002, China
| | - Youdong Hu
- Department of Geriatrics, Second People's Hospital of Huai'an, Xiamen Road Branch Hospital, The Affiliated Huaian Hospital of Xuzhou Medical University, Huai'an 223002, China
| | - Hualan Zhou
- Department of Geriatrics, Second People's Hospital of Huai'an, Xiamen Road Branch Hospital, The Affiliated Huaian Hospital of Xuzhou Medical University, Huai'an 223002, China
| | - Ying Chen
- Department of Geriatrics, Second People's Hospital of Huai'an, Xiamen Road Branch Hospital, The Affiliated Huaian Hospital of Xuzhou Medical University, Huai'an 223002, China
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Liu Y, Xiong Z, Zhou W, Chen Y, Huang Q, Wu Y. Role of apolipoprotein O in autophagy via the p38 mitogen-activated protein kinase signaling pathway in myocardial infarction. Clinics (Sao Paulo) 2022; 77:100046. [PMID: 35588578 PMCID: PMC9120058 DOI: 10.1016/j.clinsp.2022.100046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 02/10/2022] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE To explore the role and possible mechanisms of action of apolipoprotein O (APOO) in autophagy in Myocardial Infarction (MI) in vivo and in vitro. METHODS Differential gene expression and single Gene Set Enrichment Analysis (GSEA) were used to evaluate MI-related candidate genes. Animal and cell MI models were established. Sh-APOO, si-APOO, and SB203580 were used to inhibit the expression of APOO or p38MAPK. Western blot and qRT-PCR were used to analyze the expression levels of the target protein or mRNA. Apoptosis was observed using the TUNEL assay. The plasma concentrations of CK-MB and cTn-I in humans and mice were determined. RESULTS In the GSE23294 dataset, APOO mRNA was highly expressed in the left ventricle of mice with MI; GSEA revealed that APOO was positively correlated with p38MAPK, autophagy, and apoptosis. The plasma concentration of APOO in patients with MI was significantly higher than that in healthy subjects. The expression of APOO, Beclin-1, LC3, and Bax in mouse and AC16 cell MI models increased, while the level of Bcl-2 decreased. After silencing the APOO gene, the expression of APOO was downregulated; meanwhile, changes in autophagy, apoptosis and myocardial cell injury were reversed in vivo and in vitro. Furthermore, autophagy was alleviated after AC16 cells were treated with SB203580. CONCLUSIONS The increased APOO expression in mouse and cell MI models may activate autophagy and apoptosis by regulating the p38MAPK signaling pathway, thus aggravating the myocardial injury.
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Affiliation(s)
- Yue Liu
- Nanchang University Second Affiliated Hospital, Cardiovascular Medicine, Nanchang City, Jiangxi Province, PR China
| | - Zhiping Xiong
- Nanchang University Second Affiliated Hospital, Cardiovascular Medicine, Nanchang City, Jiangxi Province, PR China
| | - Wei Zhou
- Nanchang University Second Affiliated Hospital, Cardiovascular Medicine, Nanchang City, Jiangxi Province, PR China
| | - Yuxin Chen
- Nanchang University Second Affiliated Hospital, Cardiovascular Medicine, Nanchang City, Jiangxi Province, PR China
| | - Qing Huang
- Nanchang University Second Affiliated Hospital, Cardiovascular Medicine, Nanchang City, Jiangxi Province, PR China
| | - Yanqing Wu
- Nanchang University Second Affiliated Hospital, Cardiovascular Medicine, Nanchang City, Jiangxi Province, PR China.
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Chen P, Zhou D, Liu Y, Wang P, Wang W. Peiminine inhibits myocardial injury and fibrosis after myocardial infarction in rats by regulating mitogen-activated protein kinase pathway. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2022; 26:87-94. [PMID: 35203059 PMCID: PMC8890941 DOI: 10.4196/kjpp.2022.26.2.87] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 09/01/2021] [Accepted: 09/07/2021] [Indexed: 12/15/2022]
Abstract
Myocardial infarction promotes cardiac remodeling and myocardial fibrosis, thus leading to cardiac dysfunction or heart failure. Peiminine has been regarded as a traditional anti-fibrotic Chinese medicine in pulmonary fibrosis. However, the role of peiminine in myocardial infarction-induced myocardial injury and fibrosis remained elusive. Firstly, rat model of myocardial infarction was established using ligation of the left coronary artery, which were then intraperitoneally injected with 2 or 5 mg/kg peiminine once a day for 4 weeks. Echocardiography and haemodynamic evaluation results showed that peiminine treatment reduced left ventricular end-diastolic pressure, and enhanced maximum rate of increase/decrease of left ventricle pressure (± dP/dt max) and left ventricular systolic pressure, which ameliorate the cardiac function. Secondly, myocardial infarction-induced myocardial injury and infarct size were also attenuated by peiminine. Moreover, peiminine inhibited myocardial infarction-induced increase of interleukin (IL)-1β, IL-6 and tumor necrosis factor-α production, as well as the myocardial cell apoptosis, in the rats. Thirdly, peiminine also decreased the myocardial fibrosis related protein expression including collagen I and collagen III. Lastly, peiminine reduced the expression of p38 and phosphorylation of extracellular signal-regulated kinase 1/2 in rat model of myocardial infarction. In conclusion, peiminine has a cardioprotective effect against myocardial infarction-induced myocardial injury and fibrosis, which can be attributed to the inactivation of mitogen-activated protein kinase pathway.
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Affiliation(s)
- Peng Chen
- Department of Vasculocardiology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei 441000, China
| | - Dengming Zhou
- Department of Vasculocardiology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei 441000, China
| | - Yongsheng Liu
- Department of Vasculocardiology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei 441000, China
| | - Ping Wang
- Department of Vasculocardiology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei 441000, China
| | - Weina Wang
- Department of Vasculocardiology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei 441000, China
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Tian C, Gao L, Zucker IH. Regulation of Nrf2 signaling pathway in heart failure: Role of extracellular vesicles and non-coding RNAs. Free Radic Biol Med 2021; 167:218-231. [PMID: 33741451 PMCID: PMC8096694 DOI: 10.1016/j.freeradbiomed.2021.03.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 02/26/2021] [Accepted: 03/11/2021] [Indexed: 12/11/2022]
Abstract
The balance between pro- and antioxidant molecules has been established as an important driving force in the pathogenesis of cardiovascular disease. Chronic heart failure is associated with oxidative stress in the myocardium and globally. Redox balance in the heart and brain is controlled, in part, by antioxidant proteins regulated by the transcription factor Nuclear factor erythroid 2-related factor 2 (Nrf2), which is reduced in the heart failure state. Nrf2 can, in turn, be regulated by a variety of mechanisms including circulating microRNAs (miRNAs) encapsulated in extracellular vesicles (EVs) derived from multiple cell types in the heart. Here, we review the role of the Nrf2 and antioxidant enzyme signaling pathway in mediating redox balance in the myocardium and the brain in the heart failure state. This review focuses on Nrf2 and antioxidant protein regulation in the heart and brain by miRNA-enriched EVs in the setting of heart failure. We discuss EV-mediated intra- and inter-organ communications especially, communication between the heart and brain via an EV pathway that mediates cardiac function and sympatho-excitation in heart failure. Importantly, we speculate how engineered EVs with specific miRNAs or antagomirs may be used in a therapeutic manner in heart failure.
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Affiliation(s)
- Changhai Tian
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, 68198-5880, USA
| | - Lie Gao
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE, 68198-5850, USA
| | - Irving H Zucker
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE, 68198-5850, USA.
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Datta Chaudhuri R, Banik A, Mandal B, Sarkar S. Cardiac-specific overexpression of HIF-1α during acute myocardial infarction ameliorates cardiomyocyte apoptosis via differential regulation of hypoxia-inducible pro-apoptotic and anti-oxidative genes. Biochem Biophys Res Commun 2021; 537:100-108. [PMID: 33388412 DOI: 10.1016/j.bbrc.2020.12.084] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 12/24/2020] [Indexed: 11/25/2022]
Abstract
HIF-1α acts as the cellular rheostat for oxygen sensing in cardiomyocytes. Overexpression of HIF-1α in the heart during acute myocardial infarction (MI) is known to attenuate cardiac dysfunction by upregulating pro-angiogenic HIF-1α target genes. However, the effect of HIF-1α overexpression on hypoxic cardiomyocyte apoptosis still remains obscure. In this study, we report for the first time that myocardium-targeted nanotized HIF-1α overexpression during MI downregulates cardiomyocyte apoptosis. HIF-1α overexpression attenuates bnip3-mediated apoptosis indirectly by promoting HO-1-induced anti-oxidant response. Chromatin immunoprecipitation experiment revealed that HIF-1α overexpression in hypoxic cardiomyocytes increases binding of HIF-1α to the hypoxia-responsive element in the promoter of its target anti-oxidant gene ho-1 which is known to attenuate ROS accumulation. ROS accumulation in hypoxic cardiomyocytes causes cysteine oxidation of the DNA-binding p50 subunit of NFκB, which hampers NFκB binding to κB-responsive genes like bnip3. Downregulated oxidative stress due to HIF-1α overexpression leads to decline in cysteine oxidation of NFκBp50, causing NFκB to bind to the promoter of bnip3 as a transcriptional repressor. Therefore HIF-1α overexpression-mediated attenuation of cardiomyocyte apoptosis occurs by transcriptional repression of bnip3 by NFκB. Our study thus reveals that downregulation of bnip3-mediated cardiomyocyte apoptosis occurs via ho-1 upregulation upon HIF-1α overexpression during MI, despite both being HIF-1α target genes. The cross-regulation of HIF-1α and NFκB-mediated pathways effectively downregulates apoptosis due to HIF-1α overexpression during MI, which can be exploited for possible therapeutic intervention.
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Affiliation(s)
- Ratul Datta Chaudhuri
- Department of Zoology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, 700019, India.
| | - Anirban Banik
- Department of Zoology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, 700019, India.
| | - Biswajit Mandal
- Department of Zoology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, 700019, India.
| | - Sagartirtha Sarkar
- Department of Zoology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, 700019, India.
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10
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Datta Chaudhuri R, Banerjee D, Banik A, Sarkar S. Severity and duration of hypoxic stress differentially regulates HIF-1α-mediated cardiomyocyte apoptotic signaling milieu during myocardial infarction. Arch Biochem Biophys 2020; 690:108430. [PMID: 32473132 DOI: 10.1016/j.abb.2020.108430] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 04/30/2020] [Accepted: 05/21/2020] [Indexed: 01/04/2023]
Abstract
BACKGROUND The severity and duration of hypoxia is known to determine apoptotic fate in heart; however, its implication during myocardial infarction (MI) remains unaddressed. Therefore the aim of the study was to determine apoptotic regulation in cardiomyocytes under varied hypoxic intensity and duration and to unravel the role of HIF-1α in such modulation. METHODS Treatment of cardiomyocytes to varied hypoxic intensity and duration was carried out in vitro, which was mimicked in vivo by dose-dependent Isoproterenol hydrochloride treatment for varied time-points. Myocardium-targeted HIF-1α knockdown in vivo was performed to decipher its role in cardiomyocyte apoptosis under varied stress. Signaling intermediates were analyzed by RT-PCR, immunoblotting and co-immunoprecipitation. DCFDA-based ROS assay, Griess assay for NO release and biochemical assays for estimating caspase activity were performed. RESULTS Severe stress resulted in cardiomyocyte apoptosis in both shorter and longer time-points. Moderate stress, on the other hand, induced apoptosis only in the shorter time-point which was downregulated in the longer time-point. ROS activity was upregulated under severe hypoxic stress for both time-points and only in the early time-point under moderate hypoxia. Increased ROS accumulation activated ERK-1/2 which stabilized nuclear HIF-1α, promoting bnip3-mediated apoptosis. Stable HSP90-IRE-1 association in such cells caused elevated endoplasmic reticulum stress-related caspase-12 activity. Sustained moderate hypoxia caused decline in ROS activity, but upregulated NFκB-dependent NO generation. NO-stabilized HIF-1α was predominantly cytosolic, since low ROS levels downregulated ERK-1/2 activity, thereby suppressing bnip3 expression. Cytosolic HIF-1α in such cells sequestered HSP90 from IRE-1, downregulating caspase-12 activity due to proteasomal degradation of IRE-1. Accordingly, myocardium-specific in vivo silencing of HIF-1α was beneficial at both time-points under severe stress as also for lesser duration of moderate stress. However, silencing of HIF-1α aggravated apoptotic injury during sustained moderate stress. CONCLUSION ROS-mediated HIF-1α stabilization promotes cardiomyocyte apoptosis on one hand while NO-mediated stabilization of HIF-1α disrupts apoptosis depending upon the severity and duration of hypoxia. Therefore the outcome of modulation of cardiac HIF-1α activity is regulated by both the severity and duration of ischemic stress.
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Affiliation(s)
- Ratul Datta Chaudhuri
- Department of Zoology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata 700019, West Bengal, India.
| | - Durba Banerjee
- Department of Zoology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata 700019, West Bengal, India.
| | - Anirban Banik
- Department of Zoology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata 700019, West Bengal, India.
| | - Sagartirtha Sarkar
- Department of Zoology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata 700019, West Bengal, India.
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Das M, Basu S, Banerjee B, Jana K, Sen A, Datta G. Renoprotective effect of Capsicum annum against ethanol-induced oxidative stress and renal apoptosis. J Food Biochem 2020; 45:e13325. [PMID: 32573796 DOI: 10.1111/jfbc.13325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 05/18/2020] [Accepted: 05/22/2020] [Indexed: 12/01/2022]
Abstract
The present study explored the ameliorative potency of aqueous extract of Capsicum annum (AqCA), against oxidative imbalance and renal toxicity induced by ethanol. Randomly grouped male Wistar rats (n = 6), were marked as ethanol-treated (2 g/kg bw, i.p.), CA125 (125 mg/kg bw, i.p.), CA250 (250 mg/kg bw, i.p.), ethanol pre-treated with CA (similar doses), and control (0.5 ml normal saline, i.p.), and treated for 30 consecutive days. Biochemical analysis of tissue and serum parameters was performed, along with histopathological and histochemical studies. Also, we performed TUNEL assay and western blotting for our experimental groups. Statistical analysis revealed significant (p ≤ .001) alteration in the levels of antioxidant enzymes, serum urea, creatinine, pro-inflammatory cytokines, and cleaved caspases, along with histopathological alterations in the ethanol-treated group. Prior treatment with AqCA prevented ethanol-induced alterations in tissue and serum parameters. These findings indicate that the extract of CA can protect renal cells from ethanol-induced damage by inhibiting oxidative stress, inflammatory response, and apoptosis. PRACTICAL APPLICATIONS: Chronic alcohol consumption is a major public health concern that leads to various diseases and social problems as well. It affects both the affluent and non-affluent society equally. Alcohol (ethanol) is a renowned hepato-toxicant and a well-documented risk factor for oxidative stress, with less known effect on the kidney. Thus, it is essential to investigate the effect of alcohol metabolism on the kidney to find a remedy to prevent it. The present investigation depicts the anti-oxidative and anti-inflammatory role of Capsicum annum against ethanol-induced renal damage. The outcome of this study can be utilized in the future for phytotherapeutic herbal drug formulation. Besides, the bioactive components identified in the study can be further explored by researchers or pharmaceutical corporates for potential therapeutic purpose against renal impairment.
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Affiliation(s)
- Moumita Das
- Department of Physiology, Rammohan College, Kolkata, India
| | - Subhashree Basu
- Department of Physiology, Tamralipta Mahavidyalaya, Tamluk, India
| | | | - Kuladip Jana
- Division of Molecular Medicine, Bose Institute, Kolkata, India
| | - Anurupa Sen
- Department of Physiology, City College, Kolkata, India
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Zhang Q, Shi J, Guo D, Wang Q, Yang X, Lu W, Sun X, He H, Li N, Wang Y, Li C, Wang W. Qishen Granule alleviates endoplasmic reticulum stress-induced myocardial apoptosis through IRE-1-CRYAB pathway in myocardial ischemia. JOURNAL OF ETHNOPHARMACOLOGY 2020; 252:112573. [PMID: 31945401 DOI: 10.1016/j.jep.2020.112573] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 12/08/2019] [Accepted: 01/11/2020] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Qishen Granule (QSG) is a prevailing traditional Chinese medicine formula that displays impressive cardiovascular protection in clinical. However, underlying mechanisms by which QSG alleviates endoplasmic reticulum (ER) stress-induced apoptosis in myocardial ischemia still remain unknown. AIM OF THE STUDY This study aims to elucidate whether QSG ameliorates ER stress-induced myocardial apoptosis to protect against myocardial ischemia via inositol requiring enzyme 1 (IRE-1)-αBcrystallin (CRYAB) signaling pathway. MATERIALS AND METHODS Left anterior descending (LAD) ligation induced-ischemic heart model and oxygen-glucose deprivation-reperfusion (OGD/R)-induced H9C2 cells injury model were established to clarify the effects and potential mechanism of QSG. Ethanol extracts of QSG (2.352 g/kg) were orally administered for four weeks and Ginaton Tablets (100 mg/kg) was selected as a positive group in vivo. In vitro, QSG (800 μg/ml) or STF080310 (an inhibitor of IRE-1, 10 μM) was co-cultured under OGD/R in H9C2 cells. Inhibition of IRE-1 was conducted in H9C2 cells to further confirm the exact mechanism. Finally, to define the active components of anti-cardiomyocyte apoptosis in QSG which absorbed into the blood, we furtherly used the OGD/R-induced cardiomyocyte apoptosis model to evaluate the effects. RESULTS QSG treatment improved cardiac function, ameliorated inflammatory cell infiltration and myocardial apoptosis. Similar effects were revalidated in OGD/R-induced H9C2 injury model. Western blots demonstrated QSG exerted anti-apoptotic effects by regulating apoptosis-related proteins, including increasing Bcl-2 and caspase 3/12, reducing the expressions of Bax and cleaved-caspase 3/12. Mechanistically, the IRE-1-CRYAB signaling pathway was significantly activated by QSG. Co-treatment with STF080310, the IRE-1 specific inhibitor significantly compromised the protective effects of QSG in vitro. Especially, the active components of QSG including Formononetin, Tanshinone IIA, Tanshinone I, Cryptotanshinon and Harpagoside showed significantly anti-apoptosis effects. CONCLUSION QSG protected against ER stress-induced myocardial apoptosis via the IRE-1-CRYAB pathway, which is proposed as a promising therapeutic target for myocardial ischemia.
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Affiliation(s)
- Qian Zhang
- College of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Jun Shi
- School of Basic Medical Sciences, Inner Mongolia Medical University, Hohhot, 010010, China
| | - Dongqing Guo
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Qiyan Wang
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Xiaomin Yang
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Wenji Lu
- College of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Xiaoqian Sun
- College of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Hao He
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Ning Li
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Yong Wang
- College of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China; School of Life Sciences, Beijing University of Chinese Medicine, Beijing, 100029, China.
| | - Chun Li
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China.
| | - Wei Wang
- College of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China.
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Qiu L, Liu X. Identification of key genes involved in myocardial infarction. Eur J Med Res 2019; 24:22. [PMID: 31269974 PMCID: PMC6607516 DOI: 10.1186/s40001-019-0381-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Accepted: 06/18/2019] [Indexed: 12/13/2022] Open
Abstract
Background This study focuses on the identification of conserved genes involved in myocardial infarction (MI), and then analyzed the differentially expressed genes (DEGs) between the incident and recurrent events to identify MI-recurrent biomarkers. Methods Gene expression data of MI peripheral blood were downloaded from GSE97320 and GSE66360 datasets. We identified the common DEGs in these two datasets by functional enrichment analysis and protein–protein interaction (PPI) network analysis. GSE48060 was further analyzed to validate the conserved genes in MI and to compare the DEGs between the incident and recurrent MI. Results A total of 477 conserved genes were identified in the comparison between MI and control. Protein–protein interaction (PPI) network showed hub genes, such as MAPK14, STAT3, and MAPKAPK2. Part of those conserved genes was validated in the analysis of GSE48060. The DEGs in the incident and recurrent MI showed significant differences, including RNASE2 and A2M-AS1 as the potential biomarkers of MI recurrence. Conclusions The conserved genes in the pathogenesis of MI were identified, benefit for target therapy. Meanwhile, some specific genes may be used as markers for the prediction of recurrent MI. Electronic supplementary material The online version of this article (10.1186/s40001-019-0381-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Linlin Qiu
- Danyang People's Hospital of Jiangsu Province, Danyang, China
| | - Xueqing Liu
- Danyang People's Hospital of Jiangsu Province, Danyang, China.
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Khaleel SA, Raslan NA, Alzokaky AA, Ewees MG, Ashour AA, Abdel-Hamied HE, Abd-Allah AR. Contrast media (meglumine diatrizoate) aggravates renal inflammation, oxidative DNA damage and apoptosis in diabetic rats which is restored by sulforaphane through Nrf2/HO-1 reactivation. Chem Biol Interact 2019; 309:108689. [PMID: 31173751 DOI: 10.1016/j.cbi.2019.06.002] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 05/24/2019] [Accepted: 06/03/2019] [Indexed: 02/01/2023]
Abstract
Diabetes mellitus is an independent risk factor for renal impairment in patients exposed to contrast media. It doubles the risk and decreases survival rate of contrast induced nephropathy (CIN). Sulforaphane has antioxidant properties via Nrf2 activation. The interaction of diabetes and/or sulforaphane with contrast media on Nrf2 regulation is not yet understood. Herein, diabetes was induced by a single intra-peritoneal injection of streptozotocin. Animals were then divided into five groups; control non-diabetic group; diabetic group; diabetic/sulforaphane group; diabetic/CIN group; diabetic/CIN/sulforaphane group. Animals were assessed 24 h after CIN induction. Sulforaphane improved the impaired nephrotoxicity parameters, histopathological features, and oxidative stress markers induced by contrast media (meglumine diatrizoate) in diabetic rats. Immunofluorescence detection revealed increased Nrf2 expression in kidney sections after sulforaphane pretreatment. Moreover, gene expression of Nrf2 and HO-1 were up-regulated, while IL-6 and caspase3 were down-regulated in kidney tissues of animals pretreated with sulforaphane. In NRK-52E cells, sulforaphane pretreatment significantly ameliorated the cytotoxicity of meglumine diatrizoate. However, silencing Nrf2 using small interfering RNA (siRNA) abolished the cytoprotective effects of sulforaphane. Collectively, the results of this study suggest that Nrf2/HO-1 pathway has a protective role against CIN and support the clinical implication of Nrf2 activators, such as sulforaphane, in CIN particularly in diabetic patients.
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Affiliation(s)
- Sahar A Khaleel
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt; Davis Heart and Lung Research Institute and Division of Cardiovascular Medicine, College of Medicine, The Ohio State University, Columbus, OH, 43210, USA.
| | - Nahed A Raslan
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Amany A Alzokaky
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Mohamed G Ewees
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt; Davis Heart and Lung Research Institute and Division of Cardiovascular Medicine, College of Medicine, The Ohio State University, Columbus, OH, 43210, USA
| | - Ahmed A Ashour
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Hala E Abdel-Hamied
- Department of Pathology, College of Medicine, Al-Azhar University, Cairo, Egypt
| | - Adel R Abd-Allah
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
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15
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Muraleva N, Kolosova N, Stefanova N. p38 MAPK–dependent alphaB-crystallin phosphorylation in Alzheimer's disease–like pathology in OXYS rats. Exp Gerontol 2019; 119:45-52. [DOI: 10.1016/j.exger.2019.01.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 12/24/2018] [Accepted: 01/15/2019] [Indexed: 11/15/2022]
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Rana S, Datta R, Chaudhuri RD, Chatterjee E, Chawla-Sarkar M, Sarkar S. Nanotized PPARα Overexpression Targeted to Hypertrophied Myocardium Improves Cardiac Function by Attenuating the p53-GSK3β-Mediated Mitochondrial Death Pathway. Antioxid Redox Signal 2019; 30:713-732. [PMID: 29631413 DOI: 10.1089/ars.2017.7371] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
AIMS Metabolic remodeling of cardiac muscles during pathological hypertrophy is characterized by downregulation of fatty acid oxidation (FAO) regulator, peroxisome proliferator-activated receptor alpha (PPARα). Thereby, we hypothesized that a cardiac-specific induction of PPARα might restore the FAO-related protein expression and resultant energy deficit. In the present study, consequences of PPARα augmentation were evaluated for amelioration of chronic oxidative stress, myocyte apoptosis, and cardiac function during pathological cardiac hypertrophy. RESULTS Nanotized PPARα overexpression targeted to myocardium was done by a stearic acid-modified carboxymethyl-chitosan (CMC) conjugated to a 20-mer myocyte-targeted peptide (CMCP). Overexpression of PPARα ameliorated pathological hypertrophy and improved cardiac function. Augmented PPARα in hypertrophied myocytes revealed downregulated p53 acetylation (lys 382), leading to reduced apoptosis. Such cells showed increased binding of PPARα with p53 that in turn reduced interaction of p53 with glycogen synthase kinase-3β (GSK3β), which upregulated inactive phospho-GSK3β (serine [Ser]9) expression within mitochondrial protein fraction. Altogether, the altered molecular milieu in PPARα-overexpressed hypertrophy groups restored mitochondrial structure and function both in vitro and in vivo. INNOVATION Cardiomyocyte-targeted overexpression of a protein of interest (PPARα) by nanotized plasmid has been described for the first time in this study. Our data provide a novel insight towards regression of pathological hypertrophy by ameliorating mitochondrial oxidative stress in targeted PPARα-overexpressed myocardium. CONCLUSION PPARα-overexpression during pathological hypertrophy showed substantial betterment of mitochondrial structure and function, along with downregulated apoptosis. Myocardium-targeted overexpression of PPARα during pathological cardiac hypertrophy led to an overall improvement of cardiac energy deficit and subsequent cardiac function, thereby, opening up a potential avenue for cardiac tissue engineering during hypertrophic cardiac pathophysiology.
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Affiliation(s)
- Santanu Rana
- 1 Department of Zoology, University of Calcutta, Kolkata, India
| | - Ritwik Datta
- 1 Department of Zoology, University of Calcutta, Kolkata, India
| | | | | | - Mamta Chawla-Sarkar
- 2 Division of Virology, National Institute of Cholera and Enteric Diseases, Kolkata, India
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Ciocci Pardo A, González Arbeláez LF, Fantinelli JC, Aiello EA, Mosca SM. Calcineurin/P38MAPK/HSP27-dependent pathways are involved in the attenuation of postischemic mitochondrial injury afforded by sodium bicarbonate co-transporter (NBCe1) inhibition. Biochem Pharmacol 2019; 161:26-36. [PMID: 30615862 DOI: 10.1016/j.bcp.2019.01.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 01/02/2019] [Indexed: 12/14/2022]
Abstract
The electrogenic sodium bicarbonate co-transporter isoform 1 (NBCe1) plays an important role in ischemia-reperfusion injury. The cardioprotective action of an antibody directed to the extracellular loop 3 (a-L3) of NBCe1 was previously demonstrated by us. However, the role of a-L3 on mitochondrial post-ischemic alterations has not yet been determined. In this study, we aimed to elucidate the effects of a-L3 on post-ischemic mitochondrial state and dynamics analysing the involved mechanisms. Isolated rat hearts were assigned to the following groups: 1) Non-ischemic control (NIC): 110 min of perfusion; 2) Ischemic control (IC): 30 min of global ischemia and 60 min of reperfusion (R); 3) a-L3: a-L3 was administered during the initial 10 min of R; 4) SB + a-L3: SB202190 (p38MAPK inhibitor) plus a-L3. Infarct size (IS) was measured by TTC staining. Developed pressure (LVDP), maximal velocities of rise and decay of LVP (+dP/dt max, -dP/dt max) and end-diastolic pressure (LVEDP) of the left ventricle were used to assess systolic and diastolic function. Mitochondrial Ca2+ response (CaR), Ca2+ retention capacity (CRC), membrane potential (ΔΨm) and MnSOD levels were measured. The expression of P-p38MAPK, calcineurin, P-HSP27, P-Drp1, Drp1, and OPA1 were determined. a-L3 decreased IS, improved post-ischemic recovery of myocardial function, increased P-p38MAPK, P-HSP27, P-Drp1, cytosolic Drp1, and OPA1 expression and decreased calcineurin. These effects were abolished by p38MAPK inhibition with SB. These data show that NBCe1 inhibition by a-L3 limits the cell death, improves myocardial post-ischemic contractility and mitochondrial state and dynamic through calcium decrease/calcineurin inhibition-mediated p38MAPK activation and p38MAPK/HSP27-dependent pathways. Thus, we demonstrated that a-L3 is a potential therapeutic strategy in post-ischemic alterations.
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Affiliation(s)
- Alejandro Ciocci Pardo
- Centro de Investigaciones Cardiovasculares Dr Horacio E Cingolani, CCT-CONICET, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
| | - Luisa F González Arbeláez
- Centro de Investigaciones Cardiovasculares Dr Horacio E Cingolani, CCT-CONICET, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
| | - Juliana C Fantinelli
- Centro de Investigaciones Cardiovasculares Dr Horacio E Cingolani, CCT-CONICET, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
| | - Ernesto A Aiello
- Centro de Investigaciones Cardiovasculares Dr Horacio E Cingolani, CCT-CONICET, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
| | - Susana M Mosca
- Centro de Investigaciones Cardiovasculares Dr Horacio E Cingolani, CCT-CONICET, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina.
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Ge ZW, Zhu XL, Wang BC, Hu JL, Sun JJ, Wang S, Chen XJ, Meng SP, Liu L, Cheng ZY. MicroRNA-26b relieves inflammatory response and myocardial remodeling of mice with myocardial infarction by suppression of MAPK pathway through binding to PTGS2. Int J Cardiol 2019; 280:152-159. [PMID: 30679074 DOI: 10.1016/j.ijcard.2018.12.077] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 12/19/2018] [Accepted: 12/27/2018] [Indexed: 12/20/2022]
Abstract
BACKGROUND Myocardial infarction (MI) is a common cardiovascular disease caused by myocardial ischemia. Also, microRNA (miRNA) participates in the pathophysiology of many cardiovascular diseases, which can affect stem cell transplantation in the treatment of MI. In this study, our aim is to explore effect of miR-26b on inflammatory response and myocardial remodeling through the MAPK pathway by targeting PTGS2 in mice with MI. METHODS Microarray data analysis was conducted to screen MI-related differentially expressed gens (DEGs). Relationship between miR-26b and PTGS2 was testified. Cardiac function, inflammatory reaction, infarct size, and myocardial fibrosis were observed. The miR-26b expression and mRNA and protein levels of, PTGS2, ERK, JNK and p38 and Bcl-2/Bax were examined. The effect of miR-26b on cell apoptosis was also analyzed. RESULTS MiR-26b was predicted to target PTGS2 further to mediate the MAPK pathway, thus affecting MI. MiR-26b negatively targeted PTGS2. MI mice showed decreased cardiac function, as well as increased inflammatory reaction, myocardial injury, area of fibrosis and myocardial cell apoptosis. After injection of miR-26b agomir or NS-398 (PTGS2 inhibitor), inflammatory response of MI mice was attenuated and myocardial remodeling induced by MI was alleviated. CONCLUSION These findings indicate that miR-26b inhibits PTGS2 to activate the MAPK pathway, so as to reduce inflammatory response and improve myocardial remodeling in mice with MI.
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Affiliation(s)
- Zhen-Wei Ge
- Department of Cardiovascular Surgery, Henan Provincial People's Hospital, Zhengzhou 450003, PR China
| | - Xi-Liang Zhu
- Department of Cardiovascular Surgery, Henan Provincial People's Hospital, Zhengzhou 450003, PR China
| | - Bao-Cai Wang
- Department of Cardiovascular Surgery, Henan Provincial People's Hospital, Zhengzhou 450003, PR China
| | - Jun-Long Hu
- Department of Cardiovascular Surgery, Henan Provincial People's Hospital, Zhengzhou 450003, PR China
| | - Jun-Jie Sun
- Department of Cardiovascular Surgery, Henan Provincial People's Hospital, Zhengzhou 450003, PR China
| | - Sheng Wang
- Department of Cardiovascular Surgery, Henan Provincial People's Hospital, Zhengzhou 450003, PR China
| | - Xian-Jie Chen
- Department of Cardiovascular Surgery, Henan Provincial People's Hospital, Zhengzhou 450003, PR China
| | - Shu-Ping Meng
- ICU of Cardiovascular Surgery, Henan Provincial People's Hospital, Zhengzhou 450003, PR China
| | - Lin Liu
- Department of Cardiovascular Ultrasound, Henan Provincial People's Hospital, Zhengzhou 450003, PR China
| | - Zhao-Yun Cheng
- Department of Cardiovascular Surgery, Henan Provincial People's Hospital, Zhengzhou 450003, PR China.
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Das M, Basu S, Banerjee B, Sen A, Jana K, Datta G. Hepatoprotective effects of green Capsicum annum against ethanol induced oxidative stress, inflammation and apoptosis in rats. JOURNAL OF ETHNOPHARMACOLOGY 2018; 227:69-81. [PMID: 30118838 DOI: 10.1016/j.jep.2018.08.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 07/19/2018] [Accepted: 08/13/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Capsicum annum L. (CA) is used extensively as a spice and is a rich source of antioxidant vitamins. It has long been used in Indian, Native American, and Chinese traditional medicine as a carminative and an appetizer that normalizes liver function. However, its hepato-protective activity has so far not been studied. AIM OF THE STUDY The present study was undertaken to evaluate the efficacy of aqueous extract of CA at two different doses (125 mg/kg body weight and 250 mg/kg body weight), against ethanol induced oxidative stress and apoptosis in liver tissue. MATERIALS AND METHODS Adult male Wistar rats, weighing 150-200 g, were randomly grouped (n = 6) and treated with ethanol (2 g/kg bw, i.p.), CA125 (125 mg/kg bw, i.p.), CA250 (250 mg/kg bw, i.p.), ethanol with CA (similar doses), and control (0.5 ml normal saline, i.p.) for 30 days. Lipid peroxidation (LPO) and reduced glutathione content (GSH) in tissue homogenate, along with catalase (CAT), superoxide dismutase (Cu-Zn-SOD & Mn-SOD), glutathione peroxidase (GPx), glutathione reductase (GR), glutathione-s-transferase (GST) and glucose-6-phosphate dehydrogenase (G-6-P-D) activity were evaluated. Serum levels of alanine transaminase (ALT), aspartate transaminase (AST), alkaline phosphate (ALP), triglyceride (TG), total cholesterol (CHLS), high density lipoprotein (HDL), low density lipoprotein (LDL) very low density lipoprotein (VLDL), tumour necrotic factor alpha (TNF-α) and interleukin 6 (IL-6) were also measured using ELISA kits. Histopathological evaluation of the hepatic tissue was performed by hematoxylin and eosin (H&E) and periodic acid-schiff (PAS) staining. TUNEL assay was performed for apoptosis detection. RESULTS Ethanol significantly (p < 0.001) increased ALT, AST, ALP, TNF-α, IL-6, LPO, Cu-Zn-SOD, GST, GPx, TG, CHLS, LDL, VLDL levels, along with significant (p < 0.001) decrease in HDL, Mn-SOD, CAT, GSH, GR and G6PD activity. Co-administration of CA along with ethanol alleviated changes in the above parameters (p < 0.001) in a dose-dependent manner and also reduced the number of apoptotic death cells. Histo-pathological and histo-chemical studies of liver sections also ascertained the outcomes of this study. CONCLUSION Thus, it can be concluded that the aqueous extract of green CA can exert a protective effect against ethanol induced hepato-toxicity. The possible mechanism may be by acting as an antioxidant; preventing ethanol induced apoptosis and reducing pro-inflammatory cytokine levels.
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Affiliation(s)
- Moumita Das
- Department of Physiology, Rammohan College, 85A, Raja Rammohan Sarani, Kolkata 700009, West Bengal, India
| | - Subhashree Basu
- Department of Physiology, Tamralipta Mahavidyalaya, Tamluk, Poorba Medinipur, India
| | - Bhaswati Banerjee
- Department of Molecular Medicine, Bose Institute, P-1/12 C.I.T. Scheme VIIM, Kolkata 700054, West Bengal, India
| | - Anurupa Sen
- Department of Physiology, City College, Kolkata, India
| | - Kuladip Jana
- Department of Molecular Medicine, Bose Institute, P-1/12 C.I.T. Scheme VIIM, Kolkata 700054, West Bengal, India
| | - Gouriprosad Datta
- Department of Physiology, Rammohan College, 85A, Raja Rammohan Sarani, Kolkata 700009, West Bengal, India.
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Jovanović A. Cardioprotective signalling: Past, present and future. Eur J Pharmacol 2018; 833:314-319. [PMID: 29935170 DOI: 10.1016/j.ejphar.2018.06.029] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 06/08/2018] [Accepted: 06/19/2018] [Indexed: 11/29/2022]
Abstract
A few decades ago, cardiac muscle was discovered to possess signalling pathways that, when activated, protect the myocardium against the damage induced by ischaemia-reperfusion. The ability of cardiac muscle to protect itself against injury has been termed 'cardioprotection'. Many compounds and procedures can trigger cardioprotection including conditionings (exposure to brief episodes of ischaemia-reperfusion to protect against sustained ischaemia-reperfusion), hypoxia, adenosine, acetylcholine, adrenomedullin, angiotensin, bradykinin, catecholamines, endothelin, estrogens, phenylephrine, opioids, testosterone, and many more. These triggers activate many intracellular signalling factors including protein kinases, different enzymes, transcription factors and defined signalling pathways to target structures in mitochondria, sarcoplasmic reticulum, nucleus and sarcolemma to mediate cardioprotection. Although a lot of information about cardioprotection has been acquired, there are still two major outstanding issues to be addressed in the future 1) better understanding of spatio-temporal relationships between signalling elements, and; 2) devising therapeutic strategies against myocardial diseases based on cardioprotective signalling. Further research is required to paint integral picture of cardioprotective signalling and more clinical studies are required to properly test clinical efficacy and safety of potential cardioprotective strategies. Therapies against cardiac diseases based on cardioprotective strategies would be a perfect adjunct to current therapeutic strategies based on restitution of coronary blood flow and regulation of myocardial metabolic demands.
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Affiliation(s)
- Aleksandar Jovanović
- University of Nicosia Medical School, 21 Ilia Papakyriakou, 2414 Engomi, P.O. Box 24005, CY-1700 Nicosia, Cyprus.
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21
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Zhang Y, Li C, Meng H, Guo D, Zhang Q, Lu W, Wang Q, Wang Y, Tu P. BYD Ameliorates Oxidative Stress-Induced Myocardial Apoptosis in Heart Failure Post-Acute Myocardial Infarction via the P38 MAPK-CRYAB Signaling Pathway. Front Physiol 2018; 9:505. [PMID: 29867551 PMCID: PMC5951999 DOI: 10.3389/fphys.2018.00505] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 04/18/2018] [Indexed: 12/17/2022] Open
Abstract
Aim: Heart failure (HF) post-acute myocardial infarction (AMI) contributes to increasing mortality and morbidity worldwide. Baoyuan decoction (BYD) is a well-known traditional Chinese medicine formula that exhibits myocardial protection clinically. The aim of this study was to identify the effects of BYD on oxidative stress-induced apoptosis in HF post-AMI and characterize the underlying mechanism. Methods and Results: In our study, we constructed left anterior descending (LAD)-induced AMI rat models and a macrophage-conditioned media (CM)-induced H9C2 injury model. In vivo, BYD could protect cardiac functions, decrease inflammatory cell infiltration and inhibit oxidative stress-induced apoptosis. In vitro, BYD inhibited cellular apoptosis and regulated the expressions of key apoptotic molecules, including reducing the expression of B cell lymphoma-2 (Bcl-2) associated X protein (Bax) and cleaved caspase-3 and -9. Interestingly, the P38 mitogen-activated protein kinase (MAPK)-αB-crystallin (CRYAB) signaling pathway was activated by BYD treatment, and the P38 MAPK inhibitor SB203580 could reverse the protective effects of BYD. Conclusion: This study identified that BYD protected against oxidative stress-induced myocardial apoptosis via the P38 MAPK-CRYAB pathway. CRYAB may become a novel therapeutic target for AMI.
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Affiliation(s)
- Yi Zhang
- Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Chun Li
- Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Hui Meng
- Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Dongqing Guo
- The School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Qian Zhang
- The School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Wenji Lu
- College of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Qixin Wang
- Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Yong Wang
- The School of Life Sciences, Beijing University of Chinese Medicine, Beijing, China
| | - Pengfei Tu
- Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
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22
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The Role of Nrf2 in Cardiovascular Function and Disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:9237263. [PMID: 29104732 PMCID: PMC5618775 DOI: 10.1155/2017/9237263] [Citation(s) in RCA: 180] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 07/27/2017] [Indexed: 02/07/2023]
Abstract
Free radicals, reactive oxygen/nitrogen species (ROS/RNS), hydrogen sulphide, and hydrogen peroxide play an important role in both intracellular and intercellular signaling; however, their production and quenching need to be closely regulated to prevent cellular damage. An imbalance, due to exogenous sources of free radicals and chronic upregulation of endogenous production, contributes to many pathological conditions including cardiovascular disease and also more general processes involved in aging. Nuclear factor erythroid 2-like 2 (NFE2L2; commonly known as Nrf2) is a transcription factor that plays a major role in the dynamic regulation of a network of antioxidant and cytoprotective genes, through binding to and activating expression of promoters containing the antioxidant response element (ARE). Nrf2 activity is regulated by many mechanisms, suggesting that tight control is necessary for normal cell function and both hypoactivation and hyperactivation of Nrf2 are indicated in playing a role in different aspects of cardiovascular disease. Targeted activation of Nrf2 or downstream genes may prove to be a useful avenue in developing therapeutics to reduce the impact of cardiovascular disease. We will review the current status of Nrf2 and related signaling in cardiovascular disease and its relevance to current and potential treatment strategies.
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23
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Zhang Z, Zhou S, Mei Z, Zhang M. Inhibition of p38MAPK potentiates mesenchymal stem cell therapy against myocardial infarction injury in rats. Mol Med Rep 2017; 16:3489-3493. [PMID: 28713990 DOI: 10.3892/mmr.2017.6973] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 04/11/2017] [Indexed: 11/05/2022] Open
Abstract
The present study aimed to investigate the protective effect of mesenchymal stem cell (MSC) therapy in combination with p38 mitogen‑activated protein (MAPK) inhibition against myocardial infarction (MI) injury in rats, and to elucidate the underlying mechanisms. An MI model was established by ligation of the anterior descending branch of the left coronary artery. The rats were divided into four groups: MSC transplantation, p38MAPK inhibitor (SB203580), MSC + SB203580 and model control group. HE staining and a TUNEL assay were performed to evaluate pathological changes and apoptosis. The expression levels of p38MAPK and transforming growth factor β‑activated kinase 1 (TAK1) were determined using reverse transcription‑polymerase chain reaction and western blot analyses. As shown by HE staining, classical morphological changes, including irregular cell arrangement and inflammatory infiltration were observed in the model rats, whereas MSC therapy or injection of the p38MAPK inhibitor ameliorated these pathological changes. Of note, the combined application of MSCs with the p38MAPK inhibitor exerted additive effects. The TUNEL assay showed that the combined application of MSCs with p38MAPK inhibitor also led to potentiation of effects, compared with either MSCs therapy or p38MAPK inhibitor injection alone. Mechanistically, the combined application of MSCs with p38MAPK inhibitor decreased the expression levels of TAK1 and p38MAPK at the mRNA and protein levels. In conclusion, p38MAPK inhibition potentiated the protective effects of MSCs therapy against MI in rats.
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Affiliation(s)
- Zhiling Zhang
- Medical School of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Shulan Zhou
- The Second Department of Cardiovascular Medicine, Jiangxi Provincial People's Hospital, Nanchang, Jiangxi 330006, P.R. China
| | - Zhiliang Mei
- The Second Department of Cardiovascular Medicine, Jiangxi Provincial People's Hospital, Nanchang, Jiangxi 330006, P.R. China
| | - Ming Zhang
- The Second Department of Cardiovascular Medicine, Jiangxi Provincial People's Hospital, Nanchang, Jiangxi 330006, P.R. China
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24
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Datta K, Basak T, Varshney S, Sengupta S, Sarkar S. Quantitative proteomic changes during post myocardial infarction remodeling reveals altered cardiac metabolism and Desmin aggregation in the infarct region. J Proteomics 2017; 152:283-299. [DOI: 10.1016/j.jprot.2016.11.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 11/11/2016] [Accepted: 11/23/2016] [Indexed: 12/14/2022]
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25
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Jiang S, Yang Y, Li T, Ma Z, Hu W, Deng C, Fan C, Lv J, Sun Y, Yi W. An overview of the mechanisms and novel roles of Nrf2 in cardiovascular diseases. Expert Opin Ther Targets 2016; 20:1413-1424. [DOI: 10.1080/14728222.2016.1250887] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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26
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Ciano M, Allocca S, Ciardulli MC, Della Volpe L, Bonatti S, D'Agostino M. Differential phosphorylation-based regulation of αB-crystallin chaperone activity for multipass transmembrane proteins. Biochem Biophys Res Commun 2016; 479:325-330. [PMID: 27641668 PMCID: PMC5053547 DOI: 10.1016/j.bbrc.2016.09.071] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 09/14/2016] [Indexed: 01/07/2023]
Abstract
We have previously shown that αB-crystallin (CRYAB), a small heat shock protein (sHsp) that prevents irreversible aggregation of unfolded protein by an ATP-independent chaperone activity, plays a pivotal role in the biogenesis of multipass transmembrane proteins (TMPs) assisting their folding from the cytosolic side of the endoplasmic reticulum (ER) (D'Agostino et al., 2013). Here we present evidence, based on phosphomimetic substitutions, that the three phosphorytable serine residues at position 19, 45 and 59 of CRYAB play a different regulatory role in this novel chaperone activity: S19 and S45 have a strong inhibitory effect, either alone or in combination, while S59 has not and counteracts the inhibition caused by single phosphomimetic substitutions at S19 and S45. Interestingly, all phosphomimetic substitutions determine the formation of smaller oligomeric complexes containing CRYAB, indicating that the inhibitory effect seen for S19 and S45 cannot be ascribed to the reduction of oligomerization frequently associated to a decreased chaperone activity. These results indicate that phosphorylation finely regulates the chaperone activity of CRYAB with multipass TMPs and suggest a pivotal role for S59 in this process. CRYAB chaperone activity toward ATP7B-H1069Q and Fz4-FEVR. Phosphomimetic S19D and S45D inhibit CRYAB chaperone activity. Phosphomimetic S59D protects CRYAB chaperone activity. Pseudo-phosphorylation decreases CRYAB oligomerization.
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Affiliation(s)
- Michela Ciano
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Simona Allocca
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Maria Camilla Ciardulli
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Lucrezia Della Volpe
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Stefano Bonatti
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy.
| | - Massimo D'Agostino
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
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27
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Ouyang F, Huang H, Zhang M, Chen M, Huang H, Huang F, Zhou S. HMGB1 induces apoptosis and EMT in association with increased autophagy following H/R injury in cardiomyocytes. Int J Mol Med 2016; 37:679-89. [PMID: 26847839 PMCID: PMC4771104 DOI: 10.3892/ijmm.2016.2474] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Accepted: 12/08/2015] [Indexed: 12/26/2022] Open
Abstract
Hypoxia/reoxygenation (H/R) is a critical factor in the pathogenesis of tissue injury following myocardial infarction (MI) which can lead to tissue damage and pathological remodeling. Therefore, it is necessary to try and prevent myocardial H/R injury in order to optimize the treatment of MI. This study aimed to explore the functions and molecular mechanisms of action of high mobility group box 1 (HMGB1) and its role in H/R injury to H9c2 cells. The mRNA expression of levels genes were detected by RT-qPCR. The protein levels were examined by western blot analysis. The Beclin 1 expression level was further determined by immunocytochemistry (ICC). In addition, an HMGB1 overexpression vector and a shRNA lentiviral vector were constructed in order to induce the overexpression and silencing of HMGB1, respectively. The apoptotic rate of the H9c2 cells was determined by flow cytometry. The expression of miR-210 was markedly increased following the exposure of the cells to H/R, thus indicating that the cell model of H/R injury was successfully established. In addition, an in vivo model of MI was also created using rats. The mRNA and protein level of HMGB1 was found to be upregulated in the myocardial tissue of the rats with MI and in the H9c2 cells subjected to H/R injury. HMGB1 promoted apoptosis by increasing the expression of cleaved caspase-3 and the apoptotic rate of the cells, while decreasing the expression of Bcl-2 during H/R in the H9c2 cells. HMGB1 promoted epithelial-to-mesenchymal transition (EMT) by reducing the protein level of the epithelial marker, E-cadherin, while increasing the expression of the mesenchymal markers, vimentin and fibroblast-specific protein (FSP), during H/R in the H9c2 cells. HMGB1 induced the apoptosis of the H9c2 cells and EMT following H/R in association with the induction of autophagy. HMGB1 induced autophagy by upregulating the expression of discoidin domain receptor 1 (DDR1) and downregulating the phosphorylation levels of mammalian target of rapamycin (mTOR). In conclusion, the findings of our study suggest that HMGB1 promotes apoptosis and EMT in association with the induction of autophagy through the upregulation of the expression of DDR1 and the downregulation of the phosphorylation of mTOR following H/R injury in H9c2 cells.
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Affiliation(s)
- Fan Ouyang
- Department of Cardiology, Xiangtan Central Hospital, Xiangtan, Hunan 411100, P.R. China
| | - He Huang
- Department of Cardiology, Xiangtan Central Hospital, Xiangtan, Hunan 411100, P.R. China
| | - Mingyu Zhang
- Department of Cardiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Mingxian Chen
- Department of Cardiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Haobo Huang
- Department of Cardiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Fang Huang
- Department of Cardiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
| | - Shenghua Zhou
- Department of Cardiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, P.R. China
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28
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Ray A, Rana S, Banerjee D, Mitra A, Datta R, Naskar S, Sarkar S. Improved bioavailability of targeted Curcumin delivery efficiently regressed cardiac hypertrophy by modulating apoptotic load within cardiac microenvironment. Toxicol Appl Pharmacol 2015; 290:54-65. [PMID: 26612707 DOI: 10.1016/j.taap.2015.11.011] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 11/18/2015] [Accepted: 11/19/2015] [Indexed: 01/30/2023]
Abstract
Cardiomyocyte apoptosis acts as a prime modulator of cardiac hypertrophy leading to heart failure, a major cause of human mortality worldwide. Recent therapeutic interventions have focussed on translational applications of diverse pharmaceutical regimes among which, Curcumin (from Curcuma longa) is known to have an anti-hypertrophic potential but with limited pharmacological efficacies due to low aqueous solubility and poor bioavailability. In this study, Curcumin encapsulated by carboxymethyl chitosan (CMC) nanoparticle conjugated to a myocyte specific homing peptide was successfully delivered in bioactive form to pathological myocardium for effective regression of cardiac hypertrophy in a rat (Rattus norvegicus) model. Targeted nanotization showed higher cardiac bioavailability of Curcumin at a low dose of 5 mg/kg body weight compared to free Curcumin at 35 mg/kg body weight. Moreover, Curcumin/CMC-peptide treatment during hypertrophy significantly improved cardiac function by downregulating expression of hypertrophy marker genes (ANF, β-MHC), apoptotic mediators (Bax, Cytochrome-c) and activity of apoptotic markers (Caspase 3 and PARP); whereas free Curcumin in much higher dose showed minimal improvement during compromised cardiac function. Targeted Curcumin treatment significantly lowered p53 expression and activation in diseased myocardium via inhibited interaction of p53 with p300-HAT. Thus attenuated acetylation of p53 facilitated p53 ubiquitination and reduced the apoptotic load in hypertrophied cardiomyocytes; thereby limiting cardiomyocytes' need to enter the regeneration cycle during hypertrophy. This study elucidates for the first time an efficient targeted delivery regimen for Curcumin and also attributes towards probable mechanistic insight into its therapeutic potential as a cardio-protective agent for regression of cardiac hypertrophy.
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Affiliation(s)
- Aramita Ray
- Genetics and Molecular Cardiology Laboratory, Department of Zoology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata 700 019, West Bengal, India.
| | - Santanu Rana
- Genetics and Molecular Cardiology Laboratory, Department of Zoology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata 700 019, West Bengal, India.
| | - Durba Banerjee
- Genetics and Molecular Cardiology Laboratory, Department of Zoology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata 700 019, West Bengal, India.
| | - Arkadeep Mitra
- Genetics and Molecular Cardiology Laboratory, Department of Zoology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata 700 019, West Bengal, India.
| | - Ritwik Datta
- Genetics and Molecular Cardiology Laboratory, Department of Zoology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata 700 019, West Bengal, India.
| | - Shaon Naskar
- Genetics and Molecular Cardiology Laboratory, Department of Zoology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata 700 019, West Bengal, India.
| | - Sagartirtha Sarkar
- Genetics and Molecular Cardiology Laboratory, Department of Zoology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata 700 019, West Bengal, India.
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29
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Yokota T, Wang Y. p38 MAP kinases in the heart. Gene 2015; 575:369-376. [PMID: 26390817 DOI: 10.1016/j.gene.2015.09.030] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 07/31/2015] [Accepted: 09/15/2015] [Indexed: 12/28/2022]
Abstract
p38 kinases are members of the mitogen-activated protein kinases (MAPK) with established contribution to a wide range of signaling pathways and different biological processes. The prototypic p38 MAPK, p38α was originally identified as an essential signaling kinase for inflammatory cytokine production Extensive studies have now revealed that p38s have critical roles in many different tissues far beyond immune regulation and inflammatory responses. In this review, we will focus on the structure and molecular biology of p38s, and their specific roles in heart, especially regarding myocyte proliferation, apoptosis, and hypertrophic responses.
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Affiliation(s)
- Tomohiro Yokota
- Department of Anesthesiology, Cardiovascular Research Laboratories, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; Department of Physiology and Medicine, Cardiovascular Research Laboratories, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Yibin Wang
- Department of Anesthesiology, Cardiovascular Research Laboratories, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA; Department of Physiology and Medicine, Cardiovascular Research Laboratories, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA.
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30
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Fittipaldi S, Mercatelli N, Dimauro I, Jackson MJ, Paronetto MP, Caporossi D. Alpha B-crystallin induction in skeletal muscle cells under redox imbalance is mediated by a JNK-dependent regulatory mechanism. Free Radic Biol Med 2015; 86:331-42. [PMID: 26066304 DOI: 10.1016/j.freeradbiomed.2015.05.035] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Revised: 05/12/2015] [Accepted: 05/30/2015] [Indexed: 11/28/2022]
Abstract
The small heat shock protein α-B-crystallin (CRYAB) is critically involved in stress-related cellular processes such as differentiation, apoptosis, and redox homeostasis. The up-regulation of CRYAB plays a key role in the cytoprotective and antioxidant response, but the molecular pathway driving its expression in muscle cells during oxidative stress still remains unknown. Here we show that noncytotoxic exposure to sodium meta-arsenite (NaAsO2) inducing redox imbalance is able to increase the CRYAB content of C2C12 myoblasts in a transcription-dependent manner. Our in silico analysis revealed a genomic region upstream of the Cryab promoter containing two putative antioxidant-responsive elements motifs and one AP-1-like binding site. The redox-sensitive transcription factors Nrf2 and the AP-1 component c-Jun were found to be up-regulated in NaAsO2-treated cells, and we demonstrated a specific NaAsO2-mediated increase of c-Jun and Nrf2 binding activity to the genomic region identified, supporting their putative involvement in CRYAB regulation following a shift in redox balance. These changes also correlated with a specific phosphorylation of JNK and p38 MAPK kinases, the well-known molecular mediators of signaling pathways leading to the activation of these transcription factors. Pretreatment of C2C12 cells with the JNK inhibitor SP600125 induced a decrease in c-Jun and Nrf2 content and was able to counteract the NaAsO2-mediated increase in CRYAB expression. Thus these data show a direct role of JNK in CRYAB regulation under redox imbalance and also point to a previously unrecognized link between c-Jun and Nrf2 transcription factors and redox-induced CRYAB expression in muscle cells.
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Affiliation(s)
- Simona Fittipaldi
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro De Bosis 15, Rome 00135, Italy
| | - Neri Mercatelli
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro De Bosis 15, Rome 00135, Italy.
| | - Ivan Dimauro
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro De Bosis 15, Rome 00135, Italy
| | - Malcolm J Jackson
- MRC-Arthritis Research UK Centre for Integrated Research into Musculoskeletal Ageing (CIMA), Department of Musculoskeletal Biology Institute of Ageing and Chronic Disease, University of Liverpool, L69 3GA, Liverpool, UK
| | - Maria Paola Paronetto
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro De Bosis 15, Rome 00135, Italy; Laboratory of Molecular and Cellular Neurobiology, CERC Fondazione Santa Lucia, Rome, Italy
| | - Daniela Caporossi
- Unit of Biology, Genetics and Biochemistry, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Piazza Lauro De Bosis 15, Rome 00135, Italy
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31
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Rana S, Datta K, Reddy TL, Chatterjee E, Sen P, Pal-Bhadra M, Bhadra U, Pramanik A, Pramanik P, Chawla-Sarkar M, Sarkar S. A spatio-temporal cardiomyocyte targeted vector system for efficient delivery of therapeutic payloads to regress cardiac hypertrophy abating bystander effect. J Control Release 2015; 200:167-78. [PMID: 25575863 DOI: 10.1016/j.jconrel.2015.01.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2014] [Revised: 12/09/2014] [Accepted: 01/05/2015] [Indexed: 11/15/2022]
Abstract
Diverse array of therapeutic regimens, drugs or siRNA, are commonly used to regress cardiac hypertrophy, although, bystander effect and lower retention of bioactive molecules significantly reduce their functional clinical efficacy. Carvedilol, a widely used and effective anti-hypertrophic drug, simultaneously blocks β-adrenergic receptors non-specifically in various organs. Likewise, non-specific genome-wide downregulation of p53 expression by specific siRNA efficiently abrogates cardiac hypertrophy but results in extensive tumorigenesis affecting bystander organs. Therefore, delivery of such therapeutics had been a challenge in treating cardiovascular dysfunction. Cardiac tissue engineering was successfully accomplished in this study, by encapsulating such bioactive molecules with a stearic acid modified Carboxymethyl chitosan (CMC) nanopolymer conjugated to a homing peptide for delivery to hypertrophied cardiomyocytes in vivo. The peptide precisely targeted cardiomyocytes while CMC served as the vector mediator to pathological myocardium. Controlled delivery of active therapeutic payloads within cardiomyocytes resulted in effective regression of cardiac hypertrophy. Thus, this novel nano-construct as a spatio-temporal vector would be a potential tool for developing effective therapeutic strategies within cardiac micro-environment via targeted knockdown of causal genes.
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Affiliation(s)
- Santanu Rana
- Department of Zoology, University of Calcutta, 35, B.C. Road, Kolkata 700019, India
| | - Kaberi Datta
- Department of Zoology, University of Calcutta, 35, B.C. Road, Kolkata 700019, India
| | | | - Emeli Chatterjee
- Department of Zoology, University of Calcutta, 35, B.C. Road, Kolkata 700019, India
| | - Preeta Sen
- Department of Zoology, University of Calcutta, 35, B.C. Road, Kolkata 700019, India
| | - Manika Pal-Bhadra
- Centre for Chemical Biology, Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, India
| | - Utpal Bhadra
- Centre for Cellular and Molecular Biology, Uppal Road, Hyderabad 500007, India
| | - Arindam Pramanik
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
| | - Panchanan Pramanik
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
| | - Mamta Chawla-Sarkar
- Division of Virology, National Institute of Cholera and Enteric Diseases, P-33, C.I.T. Road Scheme-XM, Beliaghata, Kolkata 700010, India
| | - Sagartirtha Sarkar
- Department of Zoology, University of Calcutta, 35, B.C. Road, Kolkata 700019, India.
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32
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Reiss LK, Fragoulis A, Siegl S, Platen C, Kan YW, Nautiyal J, Parker M, Pufe T, Uhlig U, Martin C, Uhlig S, Wruck CJ. Interplay between nuclear factor erythroid 2-related factor 2 and amphiregulin during mechanical ventilation. Am J Respir Cell Mol Biol 2015; 51:668-77. [PMID: 24921206 DOI: 10.1165/rcmb.2013-0279oc] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Mechanical ventilation (MV) elicits complex and clinically relevant cellular responses in the lungs. The current study was designed to define the role of the transcription factor nuclear factor erythroid 2-related factor 2 (Nrf2), a major regulator of the cellular antioxidant defense system, in the pulmonary response to MV. Nrf2 activity was quantified in ventilated isolated perfused mouse lungs (IPL). Regulation of amphiregulin (AREG) was investigated in BEAS-2B cells with inactivated Nrf2 or Keap1, the inhibitor of Nrf2, using a luciferase vector with AREG promoter. AREG-dependent Nrf2 activity was examined in BEAS-2B cells, murine precision-cut lung slices (PCLS), and IPL. Finally, Nrf2 knockout and wild-type mice were ventilated to investigate the interplay between Nrf2 and AREG during MV in vivo. Lung functions and inflammatory parameters were measured. Nrf2 was activated in a ventilation-dependent manner. The knockdown of Nrf2 and Keap1 via short hairpin RNA in BEAS-2B cells and an EMSA with lung tissue revealed that AREG is regulated by Nrf2. Conversely, AREG application induced a significant Nrf2 activation in BEAS-2B cells, PCLS, and IPL. The signal transduction of ventilation-induced Nrf2 activation was shown to be p38 MAP kinase-dependent. In vivo ventilation experiments indicated that AREG is regulated by Nrf2 during MV. We conclude that Areg expression is regulated by Nrf2. During high-pressure ventilation, Nrf2 becomes activated and induces AREG, leading to a positive feedback loop between Nrf2 and AREG, which involves the p38 MAPK and results in the expression of cytoprotective genes.
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Mitra A, Basak T, Ahmad S, Datta K, Datta R, Sengupta S, Sarkar S. Comparative Proteome Profiling during Cardiac Hypertrophy and Myocardial Infarction Reveals Altered Glucose Oxidation by Differential Activation of Pyruvate Dehydrogenase E1 Component Subunit β. J Mol Biol 2014; 427:2104-20. [PMID: 25451023 DOI: 10.1016/j.jmb.2014.10.026] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Revised: 10/09/2014] [Accepted: 10/29/2014] [Indexed: 12/19/2022]
Abstract
Cardiac hypertrophy and myocardial infarction (MI) are two etiologically different disease forms with varied pathological characteristics. However, the precise molecular mechanisms and specific causal proteins associated with these diseases are obscure to date. In this study, a comparative cardiac proteome profiling was performed in Wistar rat models for diseased and control (sham) groups using two-dimensional difference gel electrophoresis followed by matrix-assisted laser desorption/ionization tandem time-of-flight mass spectrometry. Proteins were identified using Protein Pilot™ software (version 4.0) and were subjected to stringent statistical analysis. Alteration of key proteins was validated by Western blot analysis. The differentially expressed protein sets identified in this study were associated with different functional groups, involving various metabolic pathways, stress responses, cytoskeletal organization, apoptotic signaling and other miscellaneous functions. It was further deciphered that altered energy metabolism during hypertrophy in comparison to MI may be predominantly attributed to induced glucose oxidation level, via reduced phosphorylation of pyruvate dehydrogenase E1 component subunit β (PDHE1-B) protein during hypertrophy. This study reports for the first time the global changes in rat cardiac proteome during two etiologically different cardiac diseases and identifies key signaling regulators modulating ontogeny of these two diseases culminating in heart failure. This study also pointed toward differential activation of PDHE1-B that accounts for upregulation of glucose oxidation during hypertrophy. Downstream analysis of altered proteome and the associated modulators would enhance our present knowledge regarding altered pathophysiology of these two etiologically different cardiac disease forms.
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Affiliation(s)
- Arkadeep Mitra
- Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata 700 019, India
| | - Trayambak Basak
- Genomics and Molecular Medicine Unit, CSIR Institute of Genomics and Integrative Biology, Sukhdev Vihar, Mathura Road, New Delhi 110 020, India
| | - Shadab Ahmad
- Genomics and Molecular Medicine Unit, CSIR Institute of Genomics and Integrative Biology, Sukhdev Vihar, Mathura Road, New Delhi 110 020, India
| | - Kaberi Datta
- Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata 700 019, India
| | - Ritwik Datta
- Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata 700 019, India
| | - Shantanu Sengupta
- Genomics and Molecular Medicine Unit, CSIR Institute of Genomics and Integrative Biology, Sukhdev Vihar, Mathura Road, New Delhi 110 020, India
| | - Sagartirtha Sarkar
- Department of Zoology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata 700 019, India.
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