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Khalilimeybodi A, Saucerman JJ, Rangamani P. Modeling cardiomyocyte signaling and metabolism predicts genotype-to-phenotype mechanisms in hypertrophic cardiomyopathy. Comput Biol Med 2024; 175:108499. [PMID: 38677172 PMCID: PMC11175993 DOI: 10.1016/j.compbiomed.2024.108499] [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: 01/20/2024] [Revised: 04/17/2024] [Accepted: 04/21/2024] [Indexed: 04/29/2024]
Abstract
Familial hypertrophic cardiomyopathy (HCM) is a significant precursor of heart failure and sudden cardiac death, primarily caused by mutations in sarcomeric and structural proteins. Despite the extensive research on the HCM genotype, the complex and context-specific nature of many signaling and metabolic pathways linking the HCM genotype to phenotype has hindered therapeutic advancements for patients. Here, we have developed a computational model of HCM encompassing cardiomyocyte signaling and metabolic networks and their associated interactions. Utilizing a stochastic logic-based ODE approach, we linked cardiomyocyte signaling to the metabolic network through a gene regulatory network and post-translational modifications. We validated the model against published data on activities of signaling species in the HCM context and transcriptomes of two HCM mouse models (i.e., R403Q-αMyHC and R92W-TnT). Our model predicts that HCM mutation induces changes in metabolic functions such as ATP synthase deficiency and a transition from fatty acids to carbohydrate metabolism. The model indicated major shifts in glutamine-related metabolism and increased apoptosis after HCM-induced ATP synthase deficiency. We predicted that the transcription factors STAT, SRF, GATA4, TP53, and FoxO are the key regulators of cardiomyocyte hypertrophy and apoptosis in HCM in alignment with experiments. Moreover, we identified shared (e.g., activation of PGC1α by AMPK, and FHL1 by titin) and context-specific mechanisms (e.g., regulation of Ca2+ sensitivity by titin in HCM patients) that may control genotype-to-phenotype transition in HCM across different species or mutations. We also predicted potential combination drug targets for HCM (e.g., mavacamten plus ROS inhibitors) preventing or reversing HCM phenotype (i.e., hypertrophic growth, apoptosis, and metabolic remodeling) in cardiomyocytes. This study provides new insights into mechanisms linking genotype to phenotype in familial hypertrophic cardiomyopathy and offers a framework for assessing new treatments and exploring variations in HCM experimental models.
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Affiliation(s)
- A Khalilimeybodi
- Department of Mechanical and Aerospace Engineering, Jacobs School of Engineering, University of California San Diego, La Jolla CA 92093, United States of America
| | - Jeffrey J Saucerman
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA, United States of America; Robert M. Berne Cardiovascular Research Center, University of Virginia, Charlottesville, VA, United States of America
| | - P Rangamani
- Department of Mechanical and Aerospace Engineering, Jacobs School of Engineering, University of California San Diego, La Jolla CA 92093, United States of America.
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Marunouchi T, Onda S, Kurasawa M, Tanonaka K. Angiotensin II Is Involved in MLKL Activation During the Development of Heart Failure Following Myocardial Infarction in Rats. Biol Pharm Bull 2024; 47:809-817. [PMID: 38583954 DOI: 10.1248/bpb.b23-00741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Several reports assume that myocardial necroptotic cell death is induced during the development of chronic heart failure. Although it is well accepted that angiotensin II induces apoptotic cell death of cardiac myocytes, the involvement of angiotensin II in the induction of myocardial necroptosis during the development of heart failure is still unknown. Therefore, we examined the role of angiotensin II in myocardial necroptosis using rat failing hearts following myocardial infarction and cultured cardiomyocytes. We found that administration of azilsartan, an angiotensin II AT1 receptor blocker, or trandolapril, an angiotensin-converting enzyme inhibitor, to rats from the 2nd to the 8th week after myocardial infarction resulted in preservation of cardiac function and attenuation of mixed lineage kinase domain-like (MLKL) activation. Furthermore, the ratio of necroptotic cell death was increased in neonatal rat ventricular cardiomyocytes cultured with conditioned medium from rat cardiac fibroblasts in the presence of angiotensin II. This increase in necroptotic cells was attenuated by pretreatment with azilsartan. Furthermore, activated MLKL was increased in cardiomyocytes cultured in conditioned medium. Pretreatment with azilsartan also prevented the conditioned medium-induced increase in activated MLKL. These results suggest that angiotensin II contributes to the induction of myocardial necroptosis during the development of heart failure.
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Affiliation(s)
- Tetsuro Marunouchi
- Department of Molecular and Cellular Pharmacology, Tokyo University of Pharmacy and Life Sciences
| | - Sumika Onda
- Department of Molecular and Cellular Pharmacology, Tokyo University of Pharmacy and Life Sciences
| | - Minami Kurasawa
- Department of Molecular and Cellular Pharmacology, Tokyo University of Pharmacy and Life Sciences
| | - Kouichi Tanonaka
- Department of Molecular and Cellular Pharmacology, Tokyo University of Pharmacy and Life Sciences
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3
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Al-Masri A. Apoptosis and long non-coding RNAs: Focus on their roles in Heart diseases. Pathol Res Pract 2023; 251:154889. [PMID: 38238070 DOI: 10.1016/j.prp.2023.154889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 01/23/2024]
Abstract
Heart disease is one of the principal death reasons around the world and there is a growing requirement to discover novel healing targets that have the potential to avert or manage these illnesses. On the other hand, apoptosis is a strongly controlled, cell removal procedure that has a crucial part in numerous cardiac problems, such as reperfusion injury, MI (myocardial infarction), consecutive heart failure, and inflammation of myocardium. Completely comprehending the managing procedures of cell death signaling is critical as it is the primary factor that influences patient mortality and morbidity, owing to cardiomyocyte damage. Indeed, the prevention of heart cell death appears to be a viable treatment approach for heart illnesses. According to current researches, a number of long non-coding RNAs cause the heart cells death via different methods that are embroiled in controlling the activity of transcription elements, the pathways that signals transmission within cells, small miRNAs, and the constancy of proteins. When there is too much cell death in the heart, it can cause problems like reduced blood flow, heart damage after restoring blood flow, heart disease in diabetics, and changes in the heart after reduced blood flow. Therefore, studying how lncRNAs control apoptosis could help us find new treatments for heart diseases. In this review, we present recent discoveries about how lncRNAs are involved in causing cell death in different cardiovascular diseases.
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Affiliation(s)
- Abeer Al-Masri
- Department of Physiology, College of Medicine, King Saud University, Riyadh 11451, Saudi Arabia.
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4
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Grisanti LA. TRAIL and its receptors in cardiac diseases. Front Physiol 2023; 14:1256852. [PMID: 37621762 PMCID: PMC10445540 DOI: 10.3389/fphys.2023.1256852] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 07/28/2023] [Indexed: 08/26/2023] Open
Abstract
Cardiovascular disease is a leading cause of death worldwide. Loss of cardiomyocytes that occurs during many types of damage to the heart such as ischemic injury and stress caused by pressure overload, diminishes cardiac function due to their limited regenerative capacity and promotes remodeling, which further damages the heart. Cardiomyocyte death occurs through two primary mechanisms, necrosis and apoptosis. Apoptosis is a highly regulated form of cell death that can occur through intrinsic (mitochondrial) or extrinsic (receptor mediated) pathways. Extrinsic apoptosis occurs through a subset of Tumor Necrosis Receptor (TNF) family receptors termed "Death Receptors." While some ligands for death receptors have been extensively studied in the heart, such as TNF-α, others have been virtually unstudied. One poorly characterized cardiac TNF related ligand is TNF-Related Apoptosis Inducing Ligand (TRAIL). TRAIL binds to two apoptosis-inducing receptors, Death Receptor (DR) 4 and DR5. There are also three decoy TRAIL receptors, Decoy Receptor (DcR) 1, DcR2 and osteoprotegerin (OPG). While TRAIL has been extensively studied in the cancer field due to its ability to selectively induce apoptosis in transformed cell types, emerging clinical evidence points towards a role for TRAIL and its receptors in cardiac pathology. This article will highlight our current understanding of TRAIL and its receptors in normal and pathological conditions in the heart.
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Affiliation(s)
- Laurel A. Grisanti
- Department of Biomedical Sciences, College of Veterinary Medicine, University of Missouri, Columbia, MO, United States
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5
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Loiben AM, Chien WM, Friedman CE, Chao LSL, Weber G, Goldstein A, Sniadecki NJ, Murry CE, Yang KC. Cardiomyocyte Apoptosis Is Associated with Contractile Dysfunction in Stem Cell Model of MYH7 E848G Hypertrophic Cardiomyopathy. Int J Mol Sci 2023; 24:4909. [PMID: 36902340 PMCID: PMC10003263 DOI: 10.3390/ijms24054909] [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: 01/24/2023] [Revised: 02/16/2023] [Accepted: 02/21/2023] [Indexed: 03/08/2023] Open
Abstract
Missense mutations in myosin heavy chain 7 (MYH7) are a common cause of hypertrophic cardiomyopathy (HCM), but the molecular mechanisms underlying MYH7-based HCM remain unclear. In this work, we generated cardiomyocytes derived from isogenic human induced pluripotent stem cells to model the heterozygous pathogenic MYH7 missense variant, E848G, which is associated with left ventricular hypertrophy and adult-onset systolic dysfunction. MYH7E848G/+ increased cardiomyocyte size and reduced the maximum twitch forces of engineered heart tissue, consistent with the systolic dysfunction in MYH7E848G/+ HCM patients. Interestingly, MYH7E848G/+ cardiomyocytes more frequently underwent apoptosis that was associated with increased p53 activity relative to controls. However, genetic ablation of TP53 did not rescue cardiomyocyte survival or restore engineered heart tissue twitch force, indicating MYH7E848G/+ cardiomyocyte apoptosis and contractile dysfunction are p53-independent. Overall, our findings suggest that cardiomyocyte apoptosis is associated with the MYH7E848G/+ HCM phenotype in vitro and that future efforts to target p53-independent cell death pathways may be beneficial for the treatment of HCM patients with systolic dysfunction.
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Affiliation(s)
- Alexander M. Loiben
- Institute for Stem Cell and Regenerative Medicine, School of Medicine, University of Washington, Seattle, WA 98109, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA 98109, USA
- Department of Medicine/Cardiology, University of Washington, Seattle, WA 98109, USA
| | - Wei-Ming Chien
- Institute for Stem Cell and Regenerative Medicine, School of Medicine, University of Washington, Seattle, WA 98109, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA 98109, USA
- Department of Medicine/Cardiology, University of Washington, Seattle, WA 98109, USA
- Cardiology/Hospital Specialty Medicine, VA Puget Sound HCS, Seattle, WA 98108, USA
| | - Clayton E. Friedman
- Institute for Stem Cell and Regenerative Medicine, School of Medicine, University of Washington, Seattle, WA 98109, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA 98109, USA
- Department of Medicine/Cardiology, University of Washington, Seattle, WA 98109, USA
| | - Leslie S.-L. Chao
- Institute for Stem Cell and Regenerative Medicine, School of Medicine, University of Washington, Seattle, WA 98109, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA 98109, USA
- Department of Medicine/Cardiology, University of Washington, Seattle, WA 98109, USA
| | - Gerhard Weber
- Department of Medicine/Cardiology, University of Washington, Seattle, WA 98109, USA
| | - Alex Goldstein
- Institute for Stem Cell and Regenerative Medicine, School of Medicine, University of Washington, Seattle, WA 98109, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA 98109, USA
- Department of Medicine/Cardiology, University of Washington, Seattle, WA 98109, USA
- Department of Mechanical Engineering, University of Washington, Seattle, WA 98195, USA
- Department of Lab Medicine and Pathology, University of Washington, Seattle, WA 98195, USA
| | - Nathan J. Sniadecki
- Institute for Stem Cell and Regenerative Medicine, School of Medicine, University of Washington, Seattle, WA 98109, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA 98109, USA
- Department of Medicine/Cardiology, University of Washington, Seattle, WA 98109, USA
- Department of Mechanical Engineering, University of Washington, Seattle, WA 98195, USA
- Department of Lab Medicine and Pathology, University of Washington, Seattle, WA 98195, USA
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
| | - Charles E. Murry
- Institute for Stem Cell and Regenerative Medicine, School of Medicine, University of Washington, Seattle, WA 98109, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA 98109, USA
- Department of Medicine/Cardiology, University of Washington, Seattle, WA 98109, USA
- Department of Lab Medicine and Pathology, University of Washington, Seattle, WA 98195, USA
- Department of Bioengineering, University of Washington, Seattle, WA 98195, USA
| | - Kai-Chun Yang
- Institute for Stem Cell and Regenerative Medicine, School of Medicine, University of Washington, Seattle, WA 98109, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA 98109, USA
- Department of Medicine/Cardiology, University of Washington, Seattle, WA 98109, USA
- Cardiology/Hospital Specialty Medicine, VA Puget Sound HCS, Seattle, WA 98108, USA
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6
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Loiben AM, Chien WM, Friedman CE, Chao LSL, Weber G, Goldstein A, Sniadecki N, Murry CE, Yang KC. Cardiomyocyte apoptosis contributes to contractile dysfunction in stem cell model of MYH7 E848G hypertrophic cardiomyopathy. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.01.24.525458. [PMID: 36747800 PMCID: PMC9900838 DOI: 10.1101/2023.01.24.525458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Missense mutations in myosin heavy chain 7 ( MYH7 ) are a common cause of hyper-trophic cardiomyopathy (HCM), but the molecular mechanisms underlying MYH7 -based HCM remain unclear. In this work, we generated cardiomyocytes derived from isogenic human induced pluripotent stem cells to model the heterozygous pathogenic MYH7 missense variant, E848G, which is associated with left ventricular hypertrophy and adultonset systolic dysfunction. MYH7 E848G/+ increased cardiomyocyte size and reduced the maximum twitch forces of engineered heart tissue, consistent with the systolic dysfunction in MYH7 E848G HCM patients. Interestingly, MYH7 E848G/+ cardiomyocytes more frequently underwent apoptosis that was associated with increased p53 activity relative to controls. However, genetic ablation of TP53 did not rescue cardiomyocyte survival or restore engineered heart tissue twitch force, indicating MYH7 E848G/+ cardiomyocyte apoptosis and contractile dysfunction are p53-independent. Overall, our findings suggest that cardiomyocyte apoptosis plays an important role in the MYH7 E848G/+ HCM phenotype in vitro and that future efforts to target p53-independent cell death pathways may be beneficial for the treatment of HCM patients with systolic dysfunction.
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Affiliation(s)
- Alexander M. Loiben
- Institute for Stem Cell and Regenerative Medicine, University of Washington, School of Medicine, Seattle, WA, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA, USA
- Department of Medicine/Cardiology, University of Washington, Seattle, WA, USA
| | - Wei-Ming Chien
- Institute for Stem Cell and Regenerative Medicine, University of Washington, School of Medicine, Seattle, WA, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA, USA
- Department of Medicine/Cardiology, University of Washington, Seattle, WA, USA
- Cardiology/Hospital Specialty Medicine, VA Puget Sound HCS, Seattle, WA, USA
| | - Clayton E. Friedman
- Institute for Stem Cell and Regenerative Medicine, University of Washington, School of Medicine, Seattle, WA, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA, USA
- Department of Medicine/Cardiology, University of Washington, Seattle, WA, USA
| | - Leslie S-L. Chao
- Institute for Stem Cell and Regenerative Medicine, University of Washington, School of Medicine, Seattle, WA, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA, USA
- Department of Medicine/Cardiology, University of Washington, Seattle, WA, USA
| | - Gerhard Weber
- Department of Medicine/Cardiology, University of Washington, Seattle, WA, USA
| | - Alex Goldstein
- Institute for Stem Cell and Regenerative Medicine, University of Washington, School of Medicine, Seattle, WA, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA, USA
- Department of Medicine/Cardiology, University of Washington, Seattle, WA, USA
- Department of Mechanical Engineering, University of Washington, Seattle, WA, USA
- Department of Lab Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - Nathan Sniadecki
- Institute for Stem Cell and Regenerative Medicine, University of Washington, School of Medicine, Seattle, WA, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA, USA
- Department of Medicine/Cardiology, University of Washington, Seattle, WA, USA
- Department of Mechanical Engineering, University of Washington, Seattle, WA, USA
- Department of Bioengineering, University of Washington, Seattle, WA, USA
- Department of Lab Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - Charles E. Murry
- Institute for Stem Cell and Regenerative Medicine, University of Washington, School of Medicine, Seattle, WA, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA, USA
- Department of Medicine/Cardiology, University of Washington, Seattle, WA, USA
- Department of Bioengineering, University of Washington, Seattle, WA, USA
- Department of Lab Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - Kai-Chun Yang
- Institute for Stem Cell and Regenerative Medicine, University of Washington, School of Medicine, Seattle, WA, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA, USA
- Department of Medicine/Cardiology, University of Washington, Seattle, WA, USA
- Cardiology/Hospital Specialty Medicine, VA Puget Sound HCS, Seattle, WA, USA
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7
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Identifying the Effect of Nuanxin Capsules on Myocardial Injury Induced by Chronic Hypoxia via Network Pharmacology Analysis and Experimental Validation. BIOMED RESEARCH INTERNATIONAL 2022; 2022:2399462. [PMID: 36246984 PMCID: PMC9553472 DOI: 10.1155/2022/2399462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 07/23/2022] [Accepted: 08/30/2022] [Indexed: 11/18/2022]
Abstract
Nuanxin capsule (NX), an in-hospital preparation of Guangdong Provincial Hospital of Chinese Medicine, has been used in heart failure (HF) treatment for 15 years, but its mechanism and protective effect have not been investigated. This study was aimed at exploring the mechanism and protective effect of NX on HF treatment via network pharmacology analysis and experimental validation. Network pharmacology analysis predicted that NX was involved in the regulation of response to apoptotic process and hypoxia via protecting cellular damage and mitochondrial dysfunction against chronic hypoxia. Its mechanism may be involved in the regulation of the PI3K-Akt signaling pathway, HIF-1 signaling pathway, AMPK signaling pathway, and MAPK signaling pathway. Experimental validation indicated that NX was capable of improving cellular viability, restoring cellular morphology, and suppressing cellular apoptosis cellular. NX also exerted cardioprotection by inhibiting mitochondrial membrane potential injury and protecting mitochondrial respiratory and energy metabolism in a chronic hypoxia cellular model, which was consistent with the results of network pharmacology prediction. In addition, the screened active compounds of NX did have a good binding with their key targets, indicating NX may exert protective effect through multicompounds and multitargets. In conclusion, NX had a protective effect on HF through cellular and mitochondrial protection against chronic hypoxia via multicompounds, multitargets, and multipathways, and its mechanism may be involved in modulating the PI3K-Akt signaling pathway, HIF-1 signaling pathway, AMPK signaling pathway, and MAPK signaling pathway.
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Qi Y, Xu H, Li X, Zhao X, Li Y, Zhou X, Chen S, Shen N, Chen R, Li Y, Sun Z, Guo C. Silica nanoparticles induce cardiac injury and dysfunction via ROS/Ca 2+/CaMKII signaling. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 837:155733. [PMID: 35526619 DOI: 10.1016/j.scitotenv.2022.155733] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 04/30/2022] [Accepted: 05/02/2022] [Indexed: 06/14/2023]
Abstract
Interest is growing to better comprehend the interaction of silica nanoparticles (SiNPs) with the cardiovascular system. In particular, the extremely small size, relatively large surface area and associated unique properties may greatly enhance its toxic potentials compared to larger-sized counterparts. Nevertheless, the underlying mechanisms still need to be evaluated. In this context, the cardiotoxicity of nano-scale (Si-60; particle diameter about 60 nm) and submicro-scale silica particles (Si-300; 300 nm) were examined in ApoE-/- mice via intratracheal instillation, 6.0 mg/kg·bw, once per week for 12 times. The echocardiography showed that the sub-chronic exposure of Si-60 declined cardiac output (CO) and stroke volume (SV), shorten LVIDd and LVIDs, and thickened LVAWs of ApoE-/- mice in compared to the control and Si-300 groups. Histological investigations manifested Si-60 enhanced inflammatory infiltration, myocardial fiber arrangement disorder, hypertrophy and fibrosis in the cardiac tissue, as well as mitochondrial ultrastructural injury. Accordingly, the serum cTnT, cTnI and ANP were significantly elevated by Si-60, as well as cardiac ANP content. In particular, Si-60 greatly increased cardiac ROS, Ca2+ levels and CaMKII activation in comparison with Si-300. Further, in vitro investigations revealed silica particles induced a dose- and size-dependent activation of oxidative stress, mitochondrial membrane permeabilization, intracellular Ca2+ overload, CaMKII signaling activation and ensuing myocardial apoptosis in human cardiomyocytes (AC16). Mechanistic analyses revealed SiNPs induced myocardial apoptosis via ROS/Ca2+/CaMKII signaling, which may contribute to the abnormalities in cardiac structure and function in vivo. In summary, our research revealed SiNPs caused myocardial impairments, dysfunction and even structural remodeling via ROS/Ca2+/CaMKII signaling. Of note, a size-dependent myocardial toxicity was noticed, that is, Si-60 greater than Si-300.
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Affiliation(s)
- Yi Qi
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Hailin Xu
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China; Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Xueyan Li
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Xinying Zhao
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China; Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Yan Li
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China
| | - Xianqing Zhou
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China; Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Siyu Chen
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing 211198, China
| | - Ning Shen
- Nantong Fourth People's Hospital, Kangda College of Nanjing Medical University Affiliated Nantong Mental Health Centre, Nantong 226005, China; China Exposomics Institute (CEI) Precision Medicine Co. Ltd, Shanghai 200120, China
| | - Rui Chen
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China; Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Yanbo Li
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China; Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China.
| | - Zhiwei Sun
- Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China; Department of Toxicology and Sanitary Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Caixia Guo
- Department of Occupational Health and Environmental Health, School of Public Health, Capital Medical University, Beijing 100069, China; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing 100069, China.
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9
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Long Q, Li L, Yang H, Lu Y, Yang H, Zhu Y, Tang Y, Liu C, Yuan J. SGLT2 inhibitor, canagliflozin, ameliorates cardiac inflammation in experimental autoimmune myocarditis. Int Immunopharmacol 2022; 110:109024. [PMID: 35841866 DOI: 10.1016/j.intimp.2022.109024] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 06/29/2022] [Accepted: 07/01/2022] [Indexed: 12/19/2022]
Abstract
Myocarditis is an inflammatory cardiovascular disease which contributes to dilated cardiomyopathy (DCM) and heart failure. Canagliflozin (CANA) exerts anti-inflammatory and cardioprotective effects in heart failure besides its hypoglycemic effect. However, the role of CANA in myocarditis has not been elucidated. In this work, CANA treatment markedly alleviated cardiac inflammation and improved cardiac function in experimental autoimmune myocarditis (EAM) mice induced by α-myosin-heavy chain peptides. The expressions of NLRP3 inflammasome complexes (NLRP3, ASC, and Caspase-1) and their downstream molecules (IL-1β, IL-18) were significantly downregulated by CANA, accompanied with reduced Th17 cell infiltration in hearts. Furthermore, Bax/Bcl-2 ratio, Cleaved Caspase-3 protein level and the percentage of TUNEL-positive myocardial cells, which usually indicated apoptosis, were reduced by CANA treatment. These findings suggest CANA could be a valuable medication for myocarditis treatment.
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Affiliation(s)
- Qi Long
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Lixia Li
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hongmin Yang
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yang Lu
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Han Yang
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yaoxi Zhu
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yaohan Tang
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Changhu Liu
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jing Yuan
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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10
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Kumari R, Ray AG, Mukherjee D, Chander V, Kar D, Kumar US, Bharadwaj P.V.P. D, Banerjee SK, Konar A, Bandyopadhyay A. Downregulation of PTEN Promotes Autophagy via Concurrent Reduction in Apoptosis in Cardiac Hypertrophy in PPAR α−/− Mice. Front Cardiovasc Med 2022; 9:798639. [PMID: 35224041 PMCID: PMC8881053 DOI: 10.3389/fcvm.2022.798639] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 01/14/2022] [Indexed: 01/05/2023] Open
Abstract
Cardiac hypertrophy is characterized by an increase in the size of the cardiomyocytes which is initially triggered as an adaptive response but ultimately becomes maladaptive with chronic exposure to different hypertrophic stimuli. Prolonged cardiac hypertrophy is often associated with mitochondrial dysfunctions and cardiomyocyte cell death. Peroxisome proliferator activated receptor alpha (PPAR α), which is critical for mitochondrial biogenesis and fatty acid oxidation, is down regulated in hypertrophied cardiomyocytes. Yet, the role of PPAR α in cardiomyocyte death is largely unknown. To assess the role of PPAR α in chronic hypertrophy, isoproterenol, a β-adrenergic receptor agonist was administered in PPAR α knock out (PPAR α−/−) mice for 2 weeks and hypertrophy associated changes in cardiac tissues were observed. Echocardiographic analysis ensured the development of cardiac hypertrophy and compromised hemodynamics in PPAR α−/− mice. Proteomic analysis using high resolution mass spectrometer identified about 1,200 proteins enriched in heart tissue. Proteins were classified according to biological pathway and molecular functions. We observed an unexpected down regulation of apoptotic markers, Annexin V and p53 in hypertrophied heart tissue. Further validation revealed a significant down regulation of apoptosis regulator, PTEN, along with other apoptosis markers like p53, Caspase 9 and c-PARP. The autophagy markers Atg3, Atg5, Atg7, p62, Beclin1 and LC3 A/B were up regulated in PPAR α−/− mice indicating an increase in autophagy. Similar observations were made in a high cholesterol diet fed PPAR α−/−mice. The results were further validated in vitro using NRVMs and H9C2 cell line by blocking PPAR α that resulted in enhanced autophagosome formation upon hypertrophic stimulation. The results demonstrate that in the absence of PPAR α apoptotic pathway is inhibited while autophagy is enhanced. The data suggest that PPAR α signaling might act as a molecular switch between apoptosis and autophagy thereby playing a critical role in adaptive process in cardiac hypertrophy.
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Affiliation(s)
- Ritu Kumari
- Cell Biology and Physiology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Aleepta Guha Ray
- Cell Biology and Physiology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Dibyanti Mukherjee
- Cell Biology and Physiology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Vivek Chander
- Cell Biology and Physiology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Dipak Kar
- Cell Biology and Physiology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Uppulapu Shravan Kumar
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Guwahati, India
| | - Deepak Bharadwaj P.V.P.
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Guwahati, India
| | - Sanjay K. Banerjee
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Guwahati, India
| | - Aditya Konar
- Cell Biology and Physiology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Arun Bandyopadhyay
- Cell Biology and Physiology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
- *Correspondence: Arun Bandyopadhyay ; orcid.org/0000-0002-4885-7033
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11
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Tan Y, Li T, Hu M, Wang B, Zhou Q, Jiang Y, Zhang S, Duan X, Yang J, Liu X, Zhan Z. PHLPP1 deficiency ameliorates cardiomyocyte death and cardiac dysfunction through inhibiting Mcl-1 degradation. Cell Signal 2022; 92:110281. [DOI: 10.1016/j.cellsig.2022.110281] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 01/25/2022] [Accepted: 02/07/2022] [Indexed: 12/31/2022]
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12
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Putra MA, Sandora N, Nurhayati RW, Nauli R, Kusuma TR, Fitria NA, Muttaqin C, Makdinata W, Alwi I. Transport viable heart tissue at physiological temperature yielded higher human cardiomyocytes compared to the conventional temperature. Cell Tissue Bank 2022; 23:717-727. [PMID: 34993730 DOI: 10.1007/s10561-021-09978-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 11/06/2021] [Indexed: 11/25/2022]
Abstract
This study investigated the optimum transport condition for heart tissue to recover single-cell cardiomyocytes for future in-vitro or in-vivo studies. The heart tissues were obtained from removing excessive myocardium discharged during the repair surgery of an excessive right atrial hypertrophy due to a congenital disease. The transportation temperature studied was the most used temperature (4 °C) or the conventional condition, compared to a physiological temperature(37 °C). The heart tissues were transported from the operating theatre to the lab maintained less than 30 min consistently. Single-cell isolation was enzymatically and mechanically performed using collagenase-V (160 U/mg) and proteinase-XXIV (7-14 U/mg) following the previously described protocol. The impact of temperature differences was observed by the density of cells harvested per mg tissue, cell viability, and the senescence signals, identified by the p21, p53 and caspase-9 mRNA expressions. Results the heart tissue transported at 37 °C yielded significantly higher viable cell density (p < 0.01) yielded viable cells significantly higher density (p < 0.01) than the 4 °C; 2,335 ± 849 cells per mg tissue, and 732 ± 425 cells per mg tissue, respectively. The percentage of viable cells in both groups showed no difference. Although the 37 °C group expressed the apoptosis genes such as p21, p53 and caspase9 by 2.5-, 5.41-, 5-fold respectively (p > 0.05). Nonetheless, the Nk×2.5 and MHC genes were expressed 1,7- and 3.56-fold higher than the 4 °C. and the c-Kit+ expression was 17.56-fold, however, statistically insignificant. Conclusion When needed for single-cell isolation, a heart tissue transported at 37 °C yielded higher cell density per mg tissue compared to at 4 °C, while other indicators of gene expressions for apoptosis, cardiac structural proteins, cardiac progenitor cells showed no difference. Further investigations of the isolated cells at different temperature conditions towards their proliferation and differentiation capacities in a 3-D scaffold would be essential.
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Affiliation(s)
- Muhammad Arza Putra
- Department of Cardiovascular and Thoracic Surgery, Faculty of Medicine, Universitas Indonesia, 10430, Jakarta, Indonesia
| | - Normalina Sandora
- Human Reproduction Infertility and Family Planning Research Center, Indonesia Medical Education and Research Institute, 10430, Jakarta, Indonesia.
| | - Retno Wahyu Nurhayati
- Stem Cell and Tissue Engineering Research Center, Indonesia Medical Education and Research Institute, 10430, Jakarta, Indonesia
| | - Raisa Nauli
- Human Reproduction Infertility and Family Planning Research Center, Indonesia Medical Education and Research Institute, 10430, Jakarta, Indonesia
| | - Tyas Rahmah Kusuma
- Human Reproduction Infertility and Family Planning Research Center, Indonesia Medical Education and Research Institute, 10430, Jakarta, Indonesia
| | - Nur Amalina Fitria
- Human Reproduction Infertility and Family Planning Research Center, Indonesia Medical Education and Research Institute, 10430, Jakarta, Indonesia
| | - Chaidar Muttaqin
- Department of Cardiovascular and Thoracic Surgery, Faculty of Medicine, Universitas Indonesia, 10430, Jakarta, Indonesia
| | - William Makdinata
- Department of Cardiovascular and Thoracic Surgery, Faculty of Medicine, Universitas Indonesia, 10430, Jakarta, Indonesia
| | - Idrus Alwi
- Department of Cardiovascular and Thoracic Surgery, Faculty of Medicine, Universitas Indonesia, 10430, Jakarta, Indonesia
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13
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Marunouchi T, Ito T, Onda S, Kyo L, Takahashi K, Uchida M, Yano E, Tanonaka K. Effects of 17-AAG on the RIP1/RIP3/MLKL pathway during the development of heart failure following myocardial infarction in rats. J Pharmacol Sci 2021; 147:192-199. [PMID: 34384567 DOI: 10.1016/j.jphs.2021.06.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 06/11/2021] [Accepted: 06/18/2021] [Indexed: 12/21/2022] Open
Abstract
In a previous study, we suggested that the Hsp90 inhibitor 17-AAG prevents cardiac dysfunction in the failing heart following myocardial infarction in rats. Although it is assumed that the RIP1/RIP3/MLKL necroptotic pathway, which comprises client proteins for Hsp90, is involved; however, the relationship between the cardioprotective effects of 17-AAG and the activity of the cardiac RIP1/RIP3/MLKL necrosome-associated proteins in the failing heart following myocardial infarction remained unclear. Therefore, the levels of phosphorylated MLKL after myocardial infarction with or without Hsp90 inhibitor treatment were measured. Myocardial infarction was induced by ligation of the coronary artery (CAL) in Wistar rats. 17-AAG was injected from the 2nd to the 8th week after myocardial infarction. The administration of 17-AAG attenuated the cardiac dysfunction, hypertrophy, and fibrosis at the 8th week after CAL, simultaneously lessening the increases in the expression and phosphorylation levels of RIP1, RIP3, and MLKL in the area of the left ventricular muscle without infarct. These results indicate that the activation of the RIP1/RIP3/MLKL pathway is a common event in the development of chronic heart failure. Furthermore, our findings suggest that the effects of 17-AAG treatment on the improvement of cardiac function in rats after myocardial infarction is related to the attenuation of this RIP1/RIP3/MLKL pathway.
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Affiliation(s)
- Tetsuro Marunouchi
- Department of Molecular and Cellular Pharmacology, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Takumi Ito
- Department of Molecular and Cellular Pharmacology, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Sumika Onda
- Department of Molecular and Cellular Pharmacology, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Lina Kyo
- Department of Molecular and Cellular Pharmacology, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Kirara Takahashi
- Department of Molecular and Cellular Pharmacology, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Manami Uchida
- Department of Molecular and Cellular Pharmacology, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Emi Yano
- Department of Molecular and Cellular Pharmacology, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan
| | - Kouichi Tanonaka
- Department of Molecular and Cellular Pharmacology, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392, Japan.
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14
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Huang J, Zhang W, Zhang CL, Wang L. Interleukin-17 aggravates right ventricular remodeling via activating STAT3 under both normoxia and hypoxia. BMC Cardiovasc Disord 2021; 21:249. [PMID: 34020615 PMCID: PMC8139008 DOI: 10.1186/s12872-021-02069-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 05/17/2021] [Indexed: 01/01/2023] Open
Abstract
OBJECTIVE Proinflammatory cytokine interleukin 17 (IL-17) is involved in ventricular remodeling, mainly of the left ventricle. This study was designed to explore the role of IL-17 played in the pathogenesis of right ventricular hypertrophy (RVH), aiming to provide a novel treatment target or diagnostic biomarker options for improving the care of RVH patients. METHODS C57BL/6 mice were maintained in 10% O2 chamber or room air for four weeks. Right ventricular hypertrophy index (RVHI), RV/body weight ratio, pulmonary arteriolar remodeling determined by percent media thickness (%MT), and the cardiomyocyte diameter of RV were evaluated. Mice were treated with exogenous recombinant mouse IL-17 (rmIL-17, 1 μg per dose twice a week) for four weeks. H9c2 cardiomyocytes were cultured and treated with IL-17 (10 ng/mL) and STAT3 inhibitor (10 ng/mL) either under normoxia (21% O2, 5% CO2, 74% N2) or under hypoxia (3% O2, 5% CO2, 92% N2). Cardiomyocyte viability was assessed by Cell counting kit 8 (CCK-8) assay. The mRNA level was detected by RT-PCR, where as the protein expression was measured by Western blot, immunohistochemistry, and immunofluorescent analyses. RESULTS In vivo experiments showed that IL-17 did not affect the pulmonary artery under normoxia, after treatment with rmIL-17, %MT was not changed, while RVHI and the RV/body weight ratio were increased, indicating that IL-17 directly induced right ventricular hypertrophy. In a time-course study, the mice were exposed to hypoxia for 0, 1, 2, 3, 4 weeks, respectively. We found that the expression of IL-17 was gradually upregulated in RV tissue in a time-dependent manner after one week of hypoxia exposure, especially at the third and fourth week. Cardiomyocyte hypertrophy and apoptosis were observed after the exposure of the mice to hypoxia for four weeks, rmIL-17 further aggravated the hypoxia-induced cardiomyocyte hypertrophy and apoptosis. The expression of p-STAT3 in the IL-17-deficient mice was lower than in the wild-type mice. In vitro, IL-17 inhibited cardiomyocyte viability and induced cardiomyocyte apoptosis via STAT3 under both normoxic and hypoxic conditions. CONCLUSIONS These findings support a role for IL-17 as a mediator in the pathogenesis RVH, which might be considered as a potential novel anti-inflammation therapeutic strategy or diagnostic biomarker for RVH.
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MESH Headings
- Animals
- Cell Hypoxia
- Cell Line
- Disease Models, Animal
- Hypertrophy, Right Ventricular/metabolism
- Hypertrophy, Right Ventricular/pathology
- Hypertrophy, Right Ventricular/physiopathology
- Hypoxia/metabolism
- Hypoxia/pathology
- Hypoxia/physiopathology
- Interleukin-17/genetics
- Interleukin-17/metabolism
- Interleukin-17/toxicity
- Male
- Mice, Inbred C57BL
- Mice, Knockout
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/pathology
- Phosphorylation
- Rats
- STAT3 Transcription Factor/metabolism
- Signal Transduction
- Ventricular Function, Right/drug effects
- Ventricular Remodeling/drug effects
- Mice
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Affiliation(s)
- Jing Huang
- Department of Rheumatism and Immunology, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, People's Republic of China
| | - Wei Zhang
- Department of Emergency Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, People's Republic of China
| | - Cai-Lian Zhang
- Department of Pulmonary and Critical Care Medicine, Yanan University Affiliated Hospital, Yanan, 716000, People's Republic of China
| | - Lei Wang
- Department of Pulmonary and Critical Care Medicine, Second Affiliated Hospital of Xi'an Jiaotong University, No. 157 Xiwu Road, Xin Cheng District, Xi'an, 710004, People's Republic of China.
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15
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Ma X, Zhang Q, Zhu H, Huang K, Pang W, Zhang Q. Establishment and analysis of the lncRNA-miRNA-mRNA network based on competitive endogenous RNA identifies functional genes in heart failure. MATHEMATICAL BIOSCIENCES AND ENGINEERING : MBE 2021; 18:4011-4026. [PMID: 34198423 DOI: 10.3934/mbe.2021201] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Heart failure (HF), a common disease in adults, accounts for significantly global morbidity and mortality. Due to population aging, therapeutic progression in acute cardiovascular events, the prevalence of HF is increasing, in spite of the efficacy of multiple therapies for HF patients with decreased ejection fraction. Despite great progress in the underlying molecular mechanisms, it remains incompletely clear of the function of competing endogenous RNA (ceRNA) network in HF pathogenesis. Herein, we established an HF-related ceRNA network on the basis of differentially expressed long noncoding RNAs (lncRNAs), microRNAs (miRNAs) as well as mRNAs from GSE136547 and GSE124401 datasets. In brief, the ceRNA network composed of 58 mRNA nodes, 5 miRNA nodes, 82 lncRNA nodes as well as 252 edges. In addition, three lncRNAs (KCNQ1OT1, XIST and AC010336) with higher node degrees than other lncRNAs were chosen as hub nodes. At the same time, we have established five subnetwork of miR-17-5p, miR-20b-5p, miR-107, miR-125a-5p and miR-140-5p centered ceRNA. Pathway analysis revealed the enrichment of ceRNA network in cell cycle pathways. Collectively, our research sheds new lights on the essential functions of ceRNA network in HF development, which also suggests possible application of these hub nodes as diagnostic biomarkers as well as therapeutic targets.
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Affiliation(s)
- Xudan Ma
- Cardiothoracic Department, the Affiliated People's Hospital of Ningbo University, Ningbo, Zhejiang, China
| | - Qijun Zhang
- Cardiothoracic Department, the Affiliated People's Hospital of Ningbo University, Ningbo, Zhejiang, China
| | - Haihong Zhu
- Cardiothoracic Surgery Department, the Affiliated People's Hospital of Ningbo University, Ningbo, Zhejiang, China
| | - Kefeng Huang
- Cardiothoracic Surgery Department, the Affiliated People's Hospital of Ningbo University, Ningbo, Zhejiang, China
| | - Weina Pang
- Cardiothoracic Surgery Department, the Affiliated People's Hospital of Ningbo University, Ningbo, Zhejiang, China
| | - Qin Zhang
- Cardiothoracic Surgery Department, the Affiliated People's Hospital of Ningbo University, Ningbo, Zhejiang, China
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16
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Marunouchi T, Nishiumi C, Iinuma S, Yano E, Tanonaka K. Effects of Hsp90 inhibitor on the RIP1-RIP3-MLKL pathway during the development of heart failure in mice. Eur J Pharmacol 2021; 898:173987. [PMID: 33640405 DOI: 10.1016/j.ejphar.2021.173987] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 02/18/2021] [Accepted: 02/23/2021] [Indexed: 12/17/2022]
Abstract
Necroptosis is a programmed form of necrotic cell death. Necroptosis is regulated by the necroptosis-regulating proteins including receptor-interacting protein (RIP) 1, RIP3, and mixed lineage kinase domain-like (MLKL), the activities of which are modulated by the molecular chaperone heat-shock protein (Hsp) 90. Presently, to clarify the relationship between Hsp90 and necroptotic pathway proteins, RIP1, RIP3, and MLKL in the development of heart failure, we examined the effects of Hsp90 inhibitor treatment on the RIP1-RIP3-MLKL pathway in mice following transverse aortic constriction (TAC). In this study, TAC mice showed typical signs of heart failure at the 8th week after the operation. In the failing heart, the levels of these regulatory proteins and those of their phosphorylated forms were increased, suggesting that necroptosis contributed to the development of heart failure in the TAC mice. The increases in RIP1, RIP3, and MLKL after TAC were reversed by the administration of an Hsp90 inhibitor. Furthermore, the rise in the phosphorylation levels of these 3 proteins were attenuated by the Hsp90 inhibitor. Concomitantly, cardiac functions were preserved. We also found that exposure of cultured adult mouse cardiomyocytes to the Hsp90 inhibitor attenuated necrotic cell death induced by tumor necrosis factor-α via suppression of RIP1, RIP3, and MLKL activation in in vitro experiments. Taken together, our findings suggest that inhibition of Hsp90 should have therapeutic effects by reducing the activation of RIP1-RIP3-MLKL pathway in the hypertrophied heart and thus could be a new therapeutic strategy for chronic heart failure.
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Affiliation(s)
- Tetsuro Marunouchi
- Department of Molecular and Cellular Pharmacology, Tokyo University of Pharmacy and Life Sciences, Japan
| | - Chiharu Nishiumi
- Department of Molecular and Cellular Pharmacology, Tokyo University of Pharmacy and Life Sciences, Japan
| | - Saki Iinuma
- Department of Molecular and Cellular Pharmacology, Tokyo University of Pharmacy and Life Sciences, Japan
| | - Emi Yano
- Department of Molecular and Cellular Pharmacology, Tokyo University of Pharmacy and Life Sciences, Japan
| | - Kouichi Tanonaka
- Department of Molecular and Cellular Pharmacology, Tokyo University of Pharmacy and Life Sciences, Japan.
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17
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Gao Q, Wang P, Qiu H, Qiu B, Yi W, Tu W, Lin B, Sun D, Zeng R, Huang M, Chen J, Cen J, Zhuang J. Myogenin suppresses apoptosis induced by angiotensin II in human induced pluripotent stem cell-derived cardiomyocytes. Biochem Biophys Res Commun 2021; 552:84-90. [PMID: 33743352 DOI: 10.1016/j.bbrc.2021.03.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 03/06/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Angiotensin II (Ang II), an important component of the renin-angiotensin system (RAS), plays a critical role in the pathogenesis of cardiovascular disorders. In addition, human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) have been considered as a promising platform for studying personalized medicine for heart diseases. However, whether Ang II can induce the apoptosis of hiPSC-CMs is not known. METHODS In this study, we treated hiPSC-CMs with different concentrations of Ang II [0 nM (vehicle as a control), 1 nM, 10 nM, 100 nM, 1 μM, 10 μM, 100 μM, and 1 mM] for various time periods (24 h, 48 h, 6 days, and 10 days) and analyzed the viability and apoptosis of hiPSC-CMs. RESULTS We found that treatment with 1 mM Ang II for 10 days reduced the viability of hiPSC-CMs by 41% (p = 2.073E-08) and increased apoptosis by 2.74-fold, compared to the control group (p = 6.248E-12). MYOG, which encodes the muscle-specific transcription factor myogenin, was also identified as an apoptosis-suppressor gene in Ang II-treated hiPSC-CMs. Ectopic MYOG expression decreased the apoptosis and increased the viability of Ang II-treated hiPSC-CMs. Further analysis of the RNA sequencing (RNA-seq) data illustrated that myogenin ameliorated Ang II-induced apoptosis of hiPSC-CMs by downregulating the expression of proinflammatory genes. CONCLUSION Our findings suggest that Ang II induces the apoptosis of hiPSC-CMs and that myogenin attenuates Ang II-induced apoptosis.
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Affiliation(s)
- Qiang Gao
- Department of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510100, China
| | - Ping Wang
- School of Medical Imaging, Tianjin Medical University, Tianjin, 300203, China
| | - Hailong Qiu
- Department of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510100, China
| | - Bin Qiu
- Department of Mechanical & Electrical Engineering, Xiamen University, Xiamen, Fujian, 361102, China
| | - Weijin Yi
- Department of Mechanical & Electrical Engineering, Xiamen University, Xiamen, Fujian, 361102, China
| | - Wenchang Tu
- Department of Mechanical & Electrical Engineering, Xiamen University, Xiamen, Fujian, 361102, China
| | - Bin Lin
- Guangdong Beating Origin Regenerative Medicine Co. Ltd., Foshan, Guangdong, 528231, China
| | - Daoheng Sun
- Department of Mechanical & Electrical Engineering, Xiamen University, Xiamen, Fujian, 361102, China
| | - Rong Zeng
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510100, China
| | - Meiping Huang
- Department of Catheterization Lab, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences Guangzhou, China
| | - Jimei Chen
- Department of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510100, China
| | - Jianzheng Cen
- Department of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510100, China.
| | - Jian Zhuang
- Department of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510100, China.
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18
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Esmaeili Z, Niaz Q, Saffari PM, Dehpour AR, Rezayat SM, Jazaeri F. Evaluation of the effect of heat shock protein 70 targeted drugs on cirrhotic cardiomyopathy in biliary cirrhotic rats. Life Sci 2021; 273:119261. [PMID: 33652036 DOI: 10.1016/j.lfs.2021.119261] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 02/13/2021] [Accepted: 02/16/2021] [Indexed: 01/28/2023]
Abstract
AIMS Liver cirrhosis leads to cirrhotic cardiomyopathy (CCM) and chronotropic incompetence (CI). Heat shock protein 70 (Hsp70) regulates cellular apoptosis and autophagy in stress. Teprenone modulates the Hsp70 and protects against cellular injury. Thus, we aimed to evaluate the effect of teprenone on CI in biliary cirrhotic rats. MAIN METHODS Liver cirrhosis was induced in male Wistar rats through bile duct ligation (BDL). The chronotropic responses and QT interval were studied through electrocardiography (ECG) in sham, cirrhotic, and cirrhotic/teprenone (100 mg/kg) pre-treated groups. Brain natriuretic peptide (BNP), tumor necrosis factor alpha (TNF-α), interleukin 6 (IL-6), and monocyte chemo-attractant protein-1 (MCP-1), and alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels were investigated in serum. The Hsp70, B-cell lymphoma 2 (Bcl-2), and B-cell lymphoma 2-associated X protein (Bax) expressions were quantified through real-time polymerase chain reaction (Real-time PCR). KEY FINDINGS The chronotropic responses were decreased significantly in cirrhotic and cirrhotic/teprenone groups. The QT interval and serum BNP, TNF-α, IL-6, ALT, AST, and MCP-1 levels were increased significantly in the cirrhotic and decreased significantly, except BNP, in the cirrhotic/teprenone group. The Hsp70 and Bax expressions increased significantly in cirrhotic and decreased significantly in the cirrhotic/teprenone group while the Bcl-2 decreased significantly in cirrhotic and increased significantly in the cirrhotic/teprenone group. SIGNIFICANCE Teprenone does not relieve the CI and BNP changes in CCM while other indices are treated. Given that CCM is a multifactorial disease and needs to target other genes and proteins concurrent with Hsp70 to relieve CCM.
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Affiliation(s)
- Zeinab Esmaeili
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Qamar Niaz
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; On leave from the Department of Pharmacology and Toxicology, Faculty of Bio-Sciences, University of Veterinary and Animal Sciences, Lahore, Punjab, Pakistan.
| | - Partow Mirzaee Saffari
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad-Reza Dehpour
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Mahdi Rezayat
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Farahnaz Jazaeri
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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19
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Wang Q, Zhu Q, Ye Q, Wang J, Dong Q, Chen Y, Wang M, Fu Y, Wu R, Wu T. STAT3 Suppresses Cardiomyocytes Apoptosis in CVB3-Induced Myocarditis Via Survivin. Front Pharmacol 2021; 11:613883. [PMID: 33658937 PMCID: PMC7919905 DOI: 10.3389/fphar.2020.613883] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Accepted: 12/07/2020] [Indexed: 12/24/2022] Open
Abstract
Background: Viral myocarditis (VMC) is a common inflammatory cardiovascular disease with unclear mechanisms, which mainly affects children and adolescents. Apoptosis is the key to CVB3-induced myocarditis, and blocking this process may be beneficial to the therapy of VMC. Hence, this study aimed to explore the protective function of STAT3 on cardiomyocyte apoptosis of VMC and its underlying mechanisms. Methods and Results: In this research, we confirmed that STAT3 was significantly activated in both animal and cell models of VMC. To further clarify what role did STAT3 play in VMC, AG490, an inhibitor of STAT3, was used to suppress p-STAT3. Our results demonstrated that decreased expression of p-STAT3 caused by AG490 significantly aggravated severity of VMC with elevated myocardial inflammation, deteriorative ventricular systolic function and increased mortality. It suggested that STAT3 plays a protective role in VMC. To further identify the anti-apoptosis impact that activated STAT3 made, we constructed lentivirus to regulate the expression of STAT3 in NMCs. We found that up-regulated activated STAT3 attenuated cardiomyocyte apoptosis, but down-regulated one aggravated that, which verified activated STAT3 played an anti-apoptosis role in VMC. Following that, we explored what elements are involved in the anti-apoptotic mechanism of activated STAT3 by using survivin inhibitor YM155. The result showed the anti-apoptotic effect of activated STAT3 does not work in the case of survivin inhibition. Conclusion: Our findings demonstrated STAT3 by targeting survivin alleviated cardiomyocyte apoptosis in CVB3-induced myocarditis.
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Affiliation(s)
- Qiaoyu Wang
- Children's Heart Center, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Qiongjun Zhu
- Children's Heart Center, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Qiaofang Ye
- Children's Heart Center, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Jiajun Wang
- Children's Heart Center, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Qianqian Dong
- Children's Heart Center, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Youran Chen
- Children's Heart Center, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Minna Wang
- Children's Heart Center, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Yu Fu
- Children's Heart Center, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Rongzhou Wu
- Children's Heart Center, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
| | - Tingting Wu
- Children's Heart Center, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China
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Wang J, Chen X, Huang W. MicroRNA-369 attenuates hypoxia-induced cardiomyocyte apoptosis and inflammation via targeting TRPV3. ACTA ACUST UNITED AC 2021; 54:e10550. [PMID: 33470394 PMCID: PMC7812908 DOI: 10.1590/1414-431x202010550] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 09/29/2020] [Indexed: 01/14/2023]
Abstract
Hypoxia-induced apoptosis and inflammation play an important role in cardiovascular diseases including myocardial infarction (MI). miR-369 has been suggested to be a key regulator of cardiac fibrosis. However, the role of miR-369 in regulating hypoxia-induced heart injury remains unknown. Our data indicated that miR-369 expression was significantly down-regulated and TRPV3 was significantly up-regulated in myocardial tissue after MI in rats and in hypoxic-treated neonatal rat cardiomyocytes (NRCMs). In addition, we observed that hypoxia significantly promoted apoptosis and the inflammatory response, accompanied by increased caspase-3 activity and the secretion of the cytokines interleukin (IL)-6, IL-1β, and tumor necrosis factor (TNF)-α. miR-369 overexpression significantly suppressed cell apoptosis and inflammatory factor production triggered by hypoxia, whereas miR-369 inhibition had an opposite effect. Importantly, we identified TRPV3 as a direct target of miR-369-3p. TRPV3 inhibition with small interfering RNA (siRNA) significantly inhibited hypoxia-induced inflammation and apoptosis, which can reverse the injury effects of miR-369 inhibitors. Our findings indicated that miR-369 reduced hypoxia-induced apoptosis and inflammation by targeting TRPV3.
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Affiliation(s)
- Jinghao Wang
- Department of Pharmacy, the First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Xu Chen
- Department of Pharmacy, Daqing Oilfield General Hospital, Daqing, China
| | - Wei Huang
- Department of Pharmacology, Harbin Medical University-Daqing, Daqing, China
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21
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Lai L, Xu Y, Kang L, Yang J, Zhu G. LncRNA KCNQ1OT1 contributes to cardiomyocyte apoptosis by targeting FUS in heart failure. Exp Mol Pathol 2020; 115:104480. [PMID: 32497620 DOI: 10.1016/j.yexmp.2020.104480] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 03/09/2020] [Accepted: 05/30/2020] [Indexed: 11/29/2022]
Abstract
Long noncoding RNAs (lncRNAs) have recently been recognized as the important regulators in cardiac diseases. This study was aimed to investigate the role and molecular mechanism of lncRNA KCNQ1OT1 in regulating cardiomyocyte apoptosis in heart failure (HF). The mouse model of HF was induced by doxorubicin (ADR). Cell apoptosis was detected by Hoechst and TUNEL staining. Molecule expressions were determined by qRT-PCR and western blot. The interaction between KCNQ1OT1 and Fused in sarcoma (FUS) was assessed by RNA immunoprecipitation (RIP) and RNA pull-down assays. KCNQ1OT1 was up-regulated in the myocardial tissues of HF mice and the ADR-stimulated mouse myocardial cell line (HL-1). KCNQ1OT1 overexpression promoted apoptosis of ADR-stimulated HL-1 cells, while KCNQ1OT1 knockdown caused the opposite effect. The RIP and RNA pull-down results showed that KCNQ1OT1 - bound to FUS and negatively regulated its protein level. Knockdown of FUS inhibited apoptosis of ADR-stimulated HL-1 cells and reversed the effect of KCNQ1OT1 overexpression on cardiomyocyte apoptosis. In vivo experiment showed that KCNQ1OT1 ovexpression improved myocardial histopathological changes, reduced myocardial fibrosis areas, down-regulated FUS expression, and inhibited cell apoptosis of HF mice. In conclusion, KCNQ1OT1 facilitates cardiomyocyte apoptosis by - targeting FUS in ADR-induced HF.
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Affiliation(s)
- Lei Lai
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, Zhejiang Province, China.
| | - Yizhou Xu
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, Zhejiang Province, China
| | - Lan Kang
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, Zhejiang Province, China
| | - Jianmin Yang
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, Zhejiang Province, China
| | - Gangjie Zhu
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, Zhejiang Province, China
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Corin Overexpression Reduces Myocardial Infarct Size and Modulates Cardiomyocyte Apoptotic Cell Death. Int J Mol Sci 2020; 21:ijms21103456. [PMID: 32422879 PMCID: PMC7278931 DOI: 10.3390/ijms21103456] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/08/2020] [Accepted: 05/12/2020] [Indexed: 02/07/2023] Open
Abstract
Altered expression of corin, a cardiac transmembrane serine protease, has been linked to dilated and ischemic cardiomyopathy. However, the potential role of corin in myocardial infarction (MI) is lacking. This study examined the outcomes of MI in wild-type vs. cardiac-specific overexpressed corin transgenic (Corin-Tg) mice during pre-MI, early phase (3, 24, 72 h), and late phase (1, 4 weeks) post-MI. Corin overexpression significantly reduced cardiac cell apoptosis (p < 0.001), infarct size (p < 0.001), and inhibited cleavage of procaspases 3, 9, and 8 (p < 0.05 to p < 0.01), as well as altered the expression of Bcl2 family proteins, Bcl-xl, Bcl2 and Bak (p < 0.05 to p < 0.001) at 24 h post-MI. Overexpressed cardiac corin also significantly modulated heart function (ejection fraction, p < 0.0001), lung congestion (lung weight to body weight ratio, p < 0.0001), and systemic extracellular water (edema, p < 0.05) during late phase post-MI. Overall, cardiac corin overexpression significantly reduced apoptosis, infarct size, and modulated cardiac expression of key members of the apoptotic pathway in early phase post-MI; and led to significant improvement in heart function and reduced congestion in late phase post-MI. These findings suggest that corin may be a useful target to protect the heart from ischemic injury and subsequent post-infarction remodeling.
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Hu D, Cui YX, Wu MY, Li L, Su LN, Lian Z, Chen H. Cytosolic DNA sensor cGAS plays an essential pathogenetic role in pressure overload-induced heart failure. Am J Physiol Heart Circ Physiol 2020; 318:H1525-H1537. [PMID: 32383996 DOI: 10.1152/ajpheart.00097.2020] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Growing evidence shows that activation of inflammation in the heart provokes left ventricular (LV) remodeling and dysfunction in humans and experimental animals with heart failure (HF). Moreover, recent studies found that cyclic GMP-AMP synthase (cGAS), serving as a cytosolic DNA sensor, was essential for activating innate immunity against infection and cellular damage by initiating the STING-IRFs-type I IFN signaling cascade, which played important roles in regulating the inflammatory response. However, the pathophysiological role of cGAS in pressure overload-induced HF is unclear. Wild-type C57BL/6J mice and cGAS inhibition mice were subjected to transverse aortic constriction (TAC) to induce HF or sham operation. Inhibition of cGAS in the murine heart was performed using adeno-associated virus 9 (AAV9). Alterations of the cGAS/STING pathway were examined by qPCR and Western blotting. Cardiac remodeling was assessed by echocardiography as well as histological and molecular phenotyping. Compared with sham-operated mice, the cGAS/STING pathway was activated in LV tissues in TAC mice. Whereas TAC mice exhibited significant pathological cardiac remodeling and LV dysfunction, inhibition of cGAS improved early survival rates after TAC, preserved LV contractile function, and blunted pathological remodeling, including cardiac hypertrophy, fibrosis, and apoptosis. Furthermore, downregulation of cGAS diminished early inflammatory cell infiltration and inflammatory cytokine expression in response to TAC. These results demonstrated that cGAS played an essential pathogenetic role in pressure overload-induced HF to promote pathological cardiac remodeling and dysfunction. Our results suggest that inhibition of cGAS may be a novel therapeutic approach for HF.NEW & NOTEWORTHY In this study, we first revealed a novel role of cGAS in the regulation of pathological cardiac remodeling and dysfunction upon pressure overload. We found that the cGAS/STING pathway was activated during pressure overload. Moreover, we also demonstrated that inhibition of the cGAS/STING pathway alleviated pathological cardiac remodeling and downregulated the early inflammatory response during pressure overload-induced HF. Together, these findings will provide a new therapeutic target for HF.
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Affiliation(s)
- Dan Hu
- Department of Cardiology, Beijing Key Laboratory of Early Prediction and Intervention of Acute Myocardial Infarction, Center for Cardiovascular Translational Research, Peking University People's Hospital, Beijing, China
| | - Yu-Xia Cui
- Department of Cardiology, Beijing Key Laboratory of Early Prediction and Intervention of Acute Myocardial Infarction, Center for Cardiovascular Translational Research, Peking University People's Hospital, Beijing, China
| | - Man-Yan Wu
- Department of Cardiology, Beijing Key Laboratory of Early Prediction and Intervention of Acute Myocardial Infarction, Center for Cardiovascular Translational Research, Peking University People's Hospital, Beijing, China
| | - Long Li
- Department of Cardiology, Beijing Key Laboratory of Early Prediction and Intervention of Acute Myocardial Infarction, Center for Cardiovascular Translational Research, Peking University People's Hospital, Beijing, China
| | - Li-Na Su
- Department of Cardiology, Beijing Key Laboratory of Early Prediction and Intervention of Acute Myocardial Infarction, Center for Cardiovascular Translational Research, Peking University People's Hospital, Beijing, China
| | - Zheng Lian
- Department of Cardiology, Beijing Key Laboratory of Early Prediction and Intervention of Acute Myocardial Infarction, Center for Cardiovascular Translational Research, Peking University People's Hospital, Beijing, China
| | - Hong Chen
- Department of Cardiology, Beijing Key Laboratory of Early Prediction and Intervention of Acute Myocardial Infarction, Center for Cardiovascular Translational Research, Peking University People's Hospital, Beijing, China
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Wu R, Wu T, Li P, Wang Q, Shi Y, Zhan Y, Zhang S, Xia T, Wang Z, Lv H. The protection effects of survivin in the cell model of CVB3-induced viral myocarditis. Heart Vessels 2020; 35:1171-1179. [PMID: 32328712 DOI: 10.1007/s00380-020-01607-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Accepted: 04/10/2020] [Indexed: 01/24/2023]
Abstract
Viral myocarditis (VMC) is a widely studied but poorly understood inflammatory cardiomyopathy which mainly affects children and young adults and results in adverse outcomes. Cardiomyocyte apoptosis was reported important in the progress of coxsackievirus B3 (CVB3)-induced VMC and the blocking of this process may contribute to the therapeutic effect towards VMC. Therefore, this study was designed to explore whether survivin, one of the strongest antiapoptotic proteins, can protect cardiomyocytes from apoptosis in VMC and to discover its related mechanisms. Here, the cultured neonatal mouse cardiomyocytes (NMCs) were exposed to CVB3 to establish the cell model of VMC and the results of Western Blot showed that the protein expression of survivin in CVB3-infected NMCs varied at different post-infection time. Lentivirus was next used to examine the function of survivin in CVB3-infected NMCs. TUNEL assay demonstrated that the overexpression of survivin interrupted CVB3-induced apoptosis. It was next examined whether caspase-3 and -9 were involved in the antiapoptotic pathway initiated by survivin via Western Blot. The results showed a reverse relationship between the protein expression of survivin and that of cleaved caspase-3 and cleaved caspase-9, suggesting that survivin may attenuate apoptosis through restraining the activity of caspase-3 and -9. Moreover, the supernatant fluid of cultured NMCs was extracted to detect the quantitation of released lactate dehydrogenase (LDH) and a sharp decrease was discovered in the survivin-overexpressed group compared to the CVB3-infected group, indicating a protective role of survivin in the cell model of CVB3-induced myocarditis. This study demonstrated that survivin was triggered by CVB3 infection in NMCs and survivin executed its antiapoptotic effects via caspase-3- and caspase-9-dependent signaling pathway.
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Affiliation(s)
- Rongzhou Wu
- Department of Pediatric Cardiology, Children's Hospital of Soochow University, Suzhou, 215025, China
- Children's Heart Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Institute of Cardiovascular Development and Translational Medicine, The Second School of Medicine, Wenzhou Medical University, Wenzhou, 325027, Zhejiang, China
| | - Tingting Wu
- Children's Heart Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Institute of Cardiovascular Development and Translational Medicine, The Second School of Medicine, Wenzhou Medical University, Wenzhou, 325027, Zhejiang, China
| | - Ping Li
- Children's Heart Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Institute of Cardiovascular Development and Translational Medicine, The Second School of Medicine, Wenzhou Medical University, Wenzhou, 325027, Zhejiang, China
| | - Qiaoyu Wang
- Children's Heart Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Institute of Cardiovascular Development and Translational Medicine, The Second School of Medicine, Wenzhou Medical University, Wenzhou, 325027, Zhejiang, China
| | - Youyang Shi
- Children's Heart Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Institute of Cardiovascular Development and Translational Medicine, The Second School of Medicine, Wenzhou Medical University, Wenzhou, 325027, Zhejiang, China
| | - Yi Zhan
- Children's Heart Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Institute of Cardiovascular Development and Translational Medicine, The Second School of Medicine, Wenzhou Medical University, Wenzhou, 325027, Zhejiang, China
| | - Songyue Zhang
- Children's Heart Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Institute of Cardiovascular Development and Translational Medicine, The Second School of Medicine, Wenzhou Medical University, Wenzhou, 325027, Zhejiang, China
| | - Tianhe Xia
- Children's Heart Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Institute of Cardiovascular Development and Translational Medicine, The Second School of Medicine, Wenzhou Medical University, Wenzhou, 325027, Zhejiang, China
| | - Zhenquan Wang
- Children's Heart Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Institute of Cardiovascular Development and Translational Medicine, The Second School of Medicine, Wenzhou Medical University, Wenzhou, 325027, Zhejiang, China
| | - Haitao Lv
- Department of Pediatric Cardiology, Children's Hospital of Soochow University, Suzhou, 215025, China.
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Mirzadeh Azad F, Arabian M, Maleki M, Malakootian M. Small Molecules with Big Impacts on Cardiovascular Diseases. Biochem Genet 2020; 58:359-383. [PMID: 31997044 DOI: 10.1007/s10528-020-09948-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Accepted: 01/13/2020] [Indexed: 12/22/2022]
Abstract
Cardiovascular diseases (CVDs) are the leading cause of morbidity and mortality worldwide. Although in recent years there has been a significant progress in the diagnosis, treatment, and prognosis of CVD, but due to their complex pathobiology, developing novel biomarkers and therapeutic interventions are still in need. MicroRNAs (miRNAs) are a fraction of non-coding RNAs that act as micro-regulators of gene expression. Mounting evidences over the last decade confirmed that microRNAs were deregulated in several CVDs and manipulating their expression could affect homeostasis, differentiation, and function of cardiovascular system. Here, we review the current knowledge concerning the roles of miRNAs in cardiovascular diseases with more details on cardiac remodeling, arrhythmias, and atherosclerosis. In addition, we discuss the latest findings on the potential therapeutic applications of miRNAs in cardiovascular diseases.
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Affiliation(s)
- Fatemeh Mirzadeh Azad
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Maedeh Arabian
- Cardiogenetic Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Majid Maleki
- Cardiogenetic Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mahshid Malakootian
- Cardiogenetic Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran.
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Sumneang N, Siri-Angkul N, Kumfu S, Chattipakorn SC, Chattipakorn N. The effects of iron overload on mitochondrial function, mitochondrial dynamics, and ferroptosis in cardiomyocytes. Arch Biochem Biophys 2019; 680:108241. [PMID: 31891670 DOI: 10.1016/j.abb.2019.108241] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/22/2019] [Accepted: 12/25/2019] [Indexed: 02/06/2023]
Abstract
Excessive iron accumulation in the heart can lead to iron overload cardiomyopathy (IOC), the leading cause of death in hemochromatosis patients. Current understanding regarding the mechanism by which iron overload causes a deterioration in cardiac performance, mitochondrial dysfunction, and impaired mitochondrial dynamics remains limited. Ferroptosis, a newly identified form of regulated cell death, has recently been revealed influencing the pathophysiological process of IOC. Nevertheless, the direct effect of cardiac iron overload on ferroptotic cell death is incompletely characterized. This review article comprehensively summarizes and discusses the effects of iron overload on cardiac mitochondrial function, cardiac mitochondrial dynamics, ferroptosis of cardiomyocytes, and left ventricular function in in vitro and in vivo reports. This review also provides relevant consistent and controversial information which can facilitate further mechanistic investigation into iron-induced cardiac dysfunction in the clinical setting in the near future.
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Affiliation(s)
- Natticha Sumneang
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Natthaphat Siri-Angkul
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Sirinart Kumfu
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Siriporn C Chattipakorn
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Nipon Chattipakorn
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, 50200, Thailand.
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Li X, Xiang D, Shu Y, Zeng X, Li Y. Mitigating effect of tanshinone IIA on ventricular remodeling in rats with pressure overload-induced heart failure. Acta Cir Bras 2019; 34:e201900807. [PMID: 31618407 PMCID: PMC6802940 DOI: 10.1590/s0102-865020190080000007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Accepted: 07/11/2019] [Indexed: 11/22/2022] Open
Abstract
Purpose To investigate the effect of tanshinone IIA (TIIA) on ventricular remodeling in rats with pressure overload-induced heart failure. Methods Pressure overload-induced heart failure model (abdominal aortic coarctation) was established in 40 rats, which were divided into model and 5, 10 and 20 mg/kg TIIA groups. Ten rats receiving laparotomy excepting abdominal aortic coarctation were enrolled in sham-operated group. The 5, 10 and 20 mg/kg TIIA groups were treated with 5, 10 and 20 mg/kg TIIA, respectively, for 8 weeks. Results Compared with model group, in 20 mg/kg TIIA group the left ventricular ejection fraction, left ventricular fractional shortening, left ventricular systolic pressure, ±maximum left ventricular pressure rising and dropping rate, and myocardial B-cell lymphoma-2 and cleaved cysteinyl aspartate specific proteinase-3 protein levels were increased, respectively (P<0.05), and the left ventricular end diastolic diameter, left ventricular end systolic diameter, left ventricular end diastolic pressure, heart weight index, left ventricular weight index, serum B-type brain natriuretic peptide, interleukin 6 and C-reactive protein levels and myocardial B-cell lymphoma-2 associated X protein level were decreased, respectively (P<0.05). Conclusion TIIA may alleviate ventricular remodeling in rats with pressure overload-induced heart failure heart by reducing inflammatory response and cardiomyocyte apoptosis.
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Affiliation(s)
- Xu Li
- Master, Department of Cardiac Surgery , Guizhou Provincial People's Hospital , Guiyang , China . Design of the study, final approval
| | - Daokang Xiang
- MD, Department of Cardiac Surgery , Guizhou Provincial People's Hospital , Guiyang , China . Design of the study, critical revision, final approval
| | - Yizhu Shu
- MD, Department of Cardiac Surgery , Guizhou Provincial People's Hospital , Guiyang , China . Conception of the study, final approval
| | - Xiangjun Zeng
- MD, Department of Cardiac Surgery , Guizhou Provincial People's Hospital , Guiyang , China . Acquisition of data, statistical analyses, final approval
| | - Yonghong Li
- MD, Department of Cardiac Surgery , Guizhou Provincial People's Hospital , Guiyang , China . Manuscript writing, final approval
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Mitochondria Lysine Acetylation and Phenotypic Control. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1158:59-70. [PMID: 31452135 DOI: 10.1007/978-981-13-8367-0_4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Mitochondria have a central role in cellular metabolism and reversible post-translational modifications regulate activity of mitochondrial proteins. Thanks to advances in proteomics, lysine acetylation has arisen as an important post-translational modification in the mitochondrion. During acetylation an acetyl group is covalently attached to the epsilon amino group in the side chain of lysine residues using acetyl-CoA as the substrate donor. Therefore the positive charge is neutralized, and this can affect the function of proteins thereby regulating enzyme activity, protein interactions, and protein stability. The major deacetylase in mitochondria is SIRT3 whose activity regulates many mitochondrial enzymes. The method of choice for the analysis of acetylated proteins foresees the combination of mass spectrometry-based proteomics with affinity enrichment techniques. Beyond the identification of lysine-acetylated proteins, many studies are moving towards the characterization of acetylated patterns in different diseases. Indeed, modifications in lysine acetylation status can directly alter mitochondrial function and, therefore, be linked to human diseases such as metabolic diseases, cancer, myocardial injury and neurodegenerative diseases. Despite the progress in the characterization of different lysine acetylation sites, additional studies are needed to differentiate the specific changes with a significant biological relevance.
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29
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Li Y, Liang P, Jiang B, Tang Y, Lv Q, Hao H, Liu Z, Xiao X. CARD9 inhibits mitochondria-dependent apoptosis of cardiomyocytes under oxidative stress via interacting with Apaf-1. Free Radic Biol Med 2019; 141:172-181. [PMID: 31212066 DOI: 10.1016/j.freeradbiomed.2019.06.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 05/25/2019] [Accepted: 06/14/2019] [Indexed: 12/11/2022]
Abstract
Cardiomyocyte apoptosis is known to contribute to myocardial ischemia/reperfusion (I/R) injury. Caspase recruitment domain-containing protein 9 (CARD9) play a role in cardiac fibrosis and dysfunction. However, the role of CARD9 in apoptosis of cardiomyocytes in myocardial I/R injury and its underlying mechanisms are still unclear. In this study, CARD9 expression was found to increase in H9c2 cells in response to hydrogen peroxide. Loss of CARD9 significantly increased caspase-3 activation and cardiomyocyte death following oxidative stress in vitro. Conversely, CARD9 overexpression decreased apoptosis as evidenced by a reduction in caspase-3 activation and the apoptotic rate. The caspase recruitment domain (CARD) of CARD9 was necessary for the protective effect of CARD9 against oxidative stress in cardiomyocytes. CARD9 suppressed the activation of caspase-9 by interacting with Apaf-1 via its CARD domain in H9c2 cells exposed to H2O2. Ablation of caspase-9 activity by z-lehd-fmk effectively prevented the detrimental effect of CARD9 deficiency on cardiomyocytes. Wild-type (WT) and CARD9-/- mice were subjected to 30 min of left ascending coronary (LAD) ischemia and 12 h of reperfusion. TdT-mediated dUTP nick end labeling (TUNEL) staining analysis showed that CARD9-/- mice exhibited a significantly higher number of apoptotic-positive cells after myocardial I/R injury than the WT mice. These results suggest that CARD9 protects cardiomyocytes from apoptosis by interacting with Apaf-1 and interfering with apoptosome formation following myocardial I/R injury in vivo and in vitro.
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Affiliation(s)
- Yuanbin Li
- Department of Pathophysiology, Sepsis Translational Medicine Key Lab of Hunan Province, Xiangya School of Medicine, Central South University, Changsha, 410000, Hunan, China
| | - Pengfei Liang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, 410000, Hunan, China
| | - Bimei Jiang
- Department of Pathophysiology, Sepsis Translational Medicine Key Lab of Hunan Province, Xiangya School of Medicine, Central South University, Changsha, 410000, Hunan, China.
| | - Yuting Tang
- Department of Pathophysiology, Sepsis Translational Medicine Key Lab of Hunan Province, Xiangya School of Medicine, Central South University, Changsha, 410000, Hunan, China
| | - Qinglan Lv
- Department of Pathophysiology, Sepsis Translational Medicine Key Lab of Hunan Province, Xiangya School of Medicine, Central South University, Changsha, 410000, Hunan, China
| | - Hong Hao
- Division of Cardiovascular Medicine, Center for Precision Medicine, Department of Medicine, University of Missouri School of Medicine, Columbia, MO, USA
| | - Zhenguo Liu
- Division of Cardiovascular Medicine, Center for Precision Medicine, Department of Medicine, University of Missouri School of Medicine, Columbia, MO, USA
| | - Xianzhong Xiao
- Department of Pathophysiology, Sepsis Translational Medicine Key Lab of Hunan Province, Xiangya School of Medicine, Central South University, Changsha, 410000, Hunan, China
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Aung L, Li YZ, Yu H, Chen X, Yu Z, Gao J, Li P. Mitochondrial protein 18 is a positive apoptotic regulator in cardiomyocytes under oxidative stress. Clin Sci (Lond) 2019; 133:1067-1084. [DOI: 10.1042/cs20190125] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2023]
Abstract
Abstract
Accumulation of reactive oxygen species is a common phenomenon in cardiac stress conditions, for instance, coronary artery disease, aging-related cardiovascular abnormalities, and exposure to cardiac stressors such as hydrogen peroxide (H2O2). Mitochondrial protein 18 (Mtp18) is a novel mitochondrial inner membrane protein, shown to involve in the regulation of mitochondrial dynamics. Although Mtp18 is abundant in cardiac muscles, its role in cardiac apoptosis remains elusive. The present study aimed to detect the role of Mtp18 in H2O2-induced mitochondrial fission and apoptosis in cardiomyocytes. We studied the effect of Mtp18 in cardiomyocytes by modulating its expression with lentiviral construct of Mtp18-shRNA and Mtp18 c-DNA, respectively. We then analyzed mitochondrial morphological dynamics with MitoTracker Red staining; apoptosis with terminal deoxynucleotidyl transferase-mediated dUTP nick-end-labeling (TUNEL) and cell death detection assays; and protein expression with immunoblotting. Here, we observed that Mtp18 could regulate oxidative stress- mediated mitochondrial fission and apoptosis in cardiac myocytes. Mechanistically, we found that Mtp8 induced mitochondrial fission and apoptosis by enhancing dynamin-related protein 1 (Drp1) accumulation. Conversely, knockdown of Mtp18 interfered with Drp1-associated mitochondrial fission and subsequent activation of apoptosis in both HL-1 cells and primary cardiomyocytes. However, overexpression of Mtp18 alone was not sufficient to execute apoptosis when Drp1 was minimally expressed, suggesting that Mtp18 and Drp1 are interdependent in apoptotic cascade. Together, these data highlight the role of Mtp18 in cardiac apoptosis and provide a novel therapeutic insight to minimize cardiomyocyte loss via targetting mitochondrial dynamics.
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Affiliation(s)
- Lynn H.H. Aung
- Center for Molecular Genetics, Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Yu-Zhen Li
- Department of Pathophysiology, Institute of Basic Medical Science, PLA General Hospital, Beijing 100853, China
| | - Hua Yu
- The Affiliated Cardiovascular Hospital of Qingdao University, Qingdao 266000, China
| | - Xiatian Chen
- Center for Molecular Genetics, Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Zhongjie Yu
- Center for Molecular Genetics, Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Jinning Gao
- Center for Molecular Genetics, Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Peifeng Li
- Center for Molecular Genetics, Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao 266021, China
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31
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Kuzu M, Yıldırım S, Kandemir FM, Küçükler S, Çağlayan C, Türk E, Dörtbudak MB. Protective effect of morin on doxorubicin-induced hepatorenal toxicity in rats. Chem Biol Interact 2019; 308:89-100. [PMID: 31100273 DOI: 10.1016/j.cbi.2019.05.017] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 04/19/2019] [Accepted: 05/13/2019] [Indexed: 12/26/2022]
Abstract
Although Doxorubicin (DOX) is a widespread drug used in the treatment of cancer, its clinical use is restricted due to its common side effects. In addition, administrating DOX with an antioxidant has recently become a new strategy in preventing the side effects of DOX. The protective effects of morin, a natural flavonoid, against DOX-induced liver and kidney damage in rats were investigated biochemically, immunohistochemically and histopathologically in this study. The experimental procedure was planned as 10 days, and 5 groups consisting of seven rats were formed. Morin was given orally to rats at a dose of 50 and 100 mg/kg for 10 days and DOX was given a single dose of 40 mg/kg intraperitoneally on day 8. In order to determine the protective effect of morin against oxidative stress caused by DOX, reduced glutathione (GSH) and malondialdehyde (MDA) levels and superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx) enzyme activities were measured in liver and kidney tissues. Liver and kidney tissue damage were determined both histopathologically and by serum alanine transaminase (ALT), aspartate transaminase (AST), urea and creatinine analysis. In order to determine the effect of DOX-induced inflammation and against the effect of morin, tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β) and nuclear factor kappa B (NF-κB) levels were determined in both tissues. Liver and kidney B-cell lymphoma-2 (Bcl-2) levels were determined biochemically. In addition, Bax expression in liver tissue and aquaporin-2 (AQP-2) and nephrin expression in renal tissue were determined immunohistochemically. It was determined that oxidative damage caused by DOX decreased and improvement of liver and kidney function markers were observed in the groups that were treated with morin. In addition, pre-treatment of morin showed a regulatory effect on TNF-α, IL-1β and NF-κB levels. It prevented the increase in DOX-induced Bax expression and decrease in Bcl-2 level, AQP-2 and nephrin expression. Histopathological examination revealed that it prevented tissue damage in liver and kidney tissues.
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Affiliation(s)
- Müslüm Kuzu
- Department of Biochemistry, Faculty of Science and Letter, İbrahim Çeçen University of Ağrı, Ağrı, Turkey.
| | - Serkan Yıldırım
- Department of Preclinical Sciences, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
| | - Fatih Mehmet Kandemir
- Department of Biochemistry, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
| | - Sefa Küçükler
- Department of Biochemistry, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
| | - Cüneyt Çağlayan
- Department of Biochemistry, Faculty of Veterinary Medicine, Bingöl University, Bingöl, Turkey
| | - Erdinç Türk
- Department of Preclinical Sciences, Faculty of Veterinary Medicine, Hatay Mustafa Kemal University, Hatay, Turkey
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32
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Mokrousov IS, Perfilova VN, Prokofiev II, Popova TA, Vodopyanova EG, Vasil'eva OS, Tyurenkov IN. Effect of a new cyclic derivative of GABA, RGPU-207, on the functions of cardiac and cerebral mitochondria of stressed animals. J Pharm Pharmacol 2019; 71:1055-1064. [DOI: 10.1111/jphp.13086] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 02/03/2019] [Indexed: 12/19/2022]
Abstract
Abstract
Objectives
The objective of this study was to investigate the effects of a new derivative of GABA, RGPU-207 compound, on the mitochondrial functions of stressed animals.
Methods
RGPU-207 and the comparator drugs (phenibut and piracetam) were administered intraperitoneally to unstressed and stressed male rats at a dose of 9.4, 25 and 400 mg/kg, respectively. The oxygen consumption by cardiac and cerebral mitochondria in state 3 and 4 and Chance's respiratory control ratio (RCR) was investigated. The concentration of lipid peroxidation products (LPO) such as malondialdehyde (MDA), conjugated dienes (CD) and diketones was evaluated in the isolated mitochondria, as well as the activity of the antioxidant system (AOS) enzymes (superoxide dismutase (SOD), glutathione peroxidase (GP) and catalase).
Key findings
A new cyclic GABA derivative, RGPU-207 compound, at the dose of 9.4 mg/kg promotes a decline in MDA, diketone and CD concentrations in mitochondria and increases the levels of SOD, GP and catalase activity. Mitochondrial functional activity increases: oxygen consumption by cerebral mitochondria in state 4 decreases when complex I of the respiratory chain is activated, while malate-dependent state 3 respiration of cardiac mitochondria tends to increase. RCR of cardiac mitochondria increases when complexes I and II are involved. In cerebral mitochondria, malate-dependent and succinate-dependent RCR rise.
Conclusions
Twenty-four-hour immobilization and pain stress activate LPO processes inhibit the activity of the aos enzymes and decrease the functional activity of cardiac and cerebral mitochondria. RGPU-207 restricts LPO, enhances the antioxidant enzyme activity and improves the mitochondrial respiration. The efficacy of RGPU-207 is comparable with phenibut and piracetam.
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Affiliation(s)
- Ivan Sergeevich Mokrousov
- Department for Pharmacology and Biopharmacy, Volgograd State Medical University, Volgograd, Russian Federation
| | | | - Igor Igorevich Prokofiev
- Department for Pharmacology and Biopharmacy, Volgograd State Medical University, Volgograd, Russian Federation
| | - Tamara Alexandrovna Popova
- Department for Basic and Clinical Biochemistry, Volgograd State Medical University, Volgograd, Russian Federation
| | | | - Olga Sergeevna Vasil'eva
- Department for Organic Chemistry, Herzen State Pedagogical University, St.Petersburg, Russian Federation
| | - Ivan Nikolaevich Tyurenkov
- Department for Pharmacology and Biopharmacy, Volgograd State Medical University, Volgograd, Russian Federation
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33
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Corsetti G, Chen-Scarabelli C, Romano C, Pasini E, Dioguardi FS, Onorati F, Knight R, Patel H, Saravolatz L, Faggian G, Scarabelli TM. Autophagy and Oncosis/Necroptosis Are Enhanced in Cardiomyocytes from Heart Failure Patients. Med Sci Monit Basic Res 2019; 25:33-44. [PMID: 30713336 PMCID: PMC6373236 DOI: 10.12659/msmbr.913436] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Background Although originally described as a survival mechanism, it is unknown whether and to what extent autophagy is implicated in the terminal stages of heart failure. Here, we studied magnitude and evolution of autophagy in patients with intractable heart failure. Material/Methods Myocardial samples were obtained from 22 patients with ischemic cardiomyopathy and idiopathic dilated cardiomyopathy who were undergoing cardiac transplantation. Hearts from 11 patients who died from non-cardiac causes were used as control samples. Autophagy was evaluated by immunostaining with a monoclonal microtubule associated protein light chain 3 (LC3)-II antibody, while the relationship of autophagy with apoptosis and oncosis was assessed by double staining with TUNEL (terminal deoxynucleotidyl transferase – mediated deoxyuridine triphosphate nick end labeling) assay and complement 9 (C9) immunological staining, respectively. In addition, several necroptotic markers, including RIP1 and RIP3 (receptor interacting protein kinase 1 and 3), anti-C3 (cleaved-caspase-3), and anti-NF-κB (nuclear factor kappa-light-chain-enhancer of activated B cells) were assessed by immunohistochemistry. Results Anti-LC3-II staining was detected in 8.7±1.6% of the heart failure patient heart samples and in 1.2±0.3% of control patient heart samples. Vacuole formation started at one nuclear pole, before becoming bipolar and involving the cytosol. Subsequently, the autophagic process extended also to the nuclei, which underwent a progressive vacuolization and disintegration, assuming a peculiar “strawberry like appearance”. Myocytes with extensive vacuole formation exhibited nuclear degeneration, which was associated with TUNEL, C3, C9, RIP1, and RIP3 positive staining. Conversely, myocytes with less extensive vacuole formation showed RIP1 and NF-κB positive staining, though not positivity for other cell death markers. Conclusions Autophagy was extensively detected in end-stage heart failure and its progression, resulted in secondary cell death, with occurrence of oncosis and necroptosis exceeding that of apoptosis. Conversely, activation of the RIP1/NF-κB pathway was associated with cell survival.
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Affiliation(s)
- Giovanni Corsetti
- Division of Human Anatomy and Physiopathology, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Carol Chen-Scarabelli
- Center for Heart and Vessel Preclinical Studies, Department of Internal Medicine, St. John Hospital and Medical Center, Wayne State University, Detroit, MI, USA
| | - Claudia Romano
- Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Evasio Pasini
- Scientific Clinical Institutes Maugeri, Cardiac Rehabilitation Lumezzane Institute, Brescia, Italy
| | | | - Francesco Onorati
- Division of Cardiovascular Surgery, Verona University Hospital, Verona, Italy
| | - Richard Knight
- Medical Research Council (MRC) Toxicology Unit, University of Cambridge, Cambridge, United Kingdom
| | - Hemang Patel
- General Medical Education, Department of Internal Medicine, Ascension St. John Hospital, Detroit, MI, USA
| | - Louis Saravolatz
- Department of Medicine, Ascension St John Hospital and Wayne State University School of Medicine, Detroit, MI, USA
| | - Giuseppe Faggian
- Division of Cardiovascular Surgery, Verona University Hospital, Verona, Italy
| | - Tiziano M Scarabelli
- Center for Heart and Vessel Preclinical Studies, Department of Internal Medicine, St. John Hospital and Medical Center, Wayne State University, Detroit, MI, USA
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34
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Metabonomics and Molecular Biology-based Effects of Sugemule-3 in an Isoproterenol-induced Cardiovascular Disease Rat Model. Chem Res Chin Univ 2018. [DOI: 10.1007/s40242-018-7307-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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35
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Restoration of cardiac function after anaemia-induced heart failure in zebrafish. J Mol Cell Cardiol 2018; 121:223-232. [PMID: 30009777 DOI: 10.1016/j.yjmcc.2018.07.128] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 06/28/2018] [Accepted: 07/11/2018] [Indexed: 01/22/2023]
Abstract
AIMS New therapeutic approaches are needed to fight against the growing epidemic of heart failure. Unlike mammals, zebrafish possess the incredible ability to regenerate cardiac tissue after acute trauma such as apical resection. Yet, the ability of zebrafish to recover after a chronic stress leading to heart failure has not been reported. The aim of this study was to test whether zebrafish can recover a normal cardiac function after anaemia-induced heart failure. METHODS AND RESULTS Eight- to ten-month-old zebrafish were treated with phenylhydrazine hydrochloride, an anaemia inducer, to generate heart failure. Treatment was stopped after 5 weeks and fish were followed-up for 3 weeks. Assessment of ventricular function by ultrasound at the end of the treatment revealed an increase in ventricle diameter (+47%) and a decrease in heart rate (-36%) and fractional shortening (-30%). A decrease in swim capacity was also observed (-31%). Tissue staining showed a thickening of the ventricular wall (5-fold), cell apoptosis and proliferation but no fibrosis. Expression of foetal genes, angiogenic factor and inflammation markers was increased, and β-adrenergic receptor-1 was decreased. Three weeks after phenylhydrazine hydrochloride withdrawal, all parameters returned to baseline and the fish recovered a normal cardiac function, tissue morphology and gene expression. CONCLUSIONS Zebrafish are able to completely recover from anaemia-induced heart failure. This model represents a unique opportunity to investigate the mechanisms of cardiac repair and may lead to the discovery of novel therapeutic targets of heart failure.
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36
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Chen BC, Hung MY, Wang HF, Yeh LJ, Pandey S, Chen RJ, Chang RL, Viswanadha VP, Lin KH, Huang CY. GABA tea attenuates cardiac apoptosis in spontaneously hypertensive rats (SHR) by enhancing PI3K/Akt-mediated survival pathway and suppressing Bax/Bak dependent apoptotic pathway. ENVIRONMENTAL TOXICOLOGY 2018; 33:789-797. [PMID: 29708300 DOI: 10.1002/tox.22565] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 03/29/2018] [Accepted: 04/01/2018] [Indexed: 06/08/2023]
Abstract
Cardiomyocyte apoptosis is the major risk factor for the development of heart failure (HF). The purpose of this study was to evaluate the effects of Gamma-aminobutyric acid (GABA) tea on hypertension-induced cardiac apoptotic pathways in spontaneously hypertensive rats (SHR). In order to reveal the mechanisms, 36 male SHR at eight weeks of age, 200 g were divided into six groups. One group was fed water as a control group. Other rats were administered one of the following treatments: GABA tea at dose 150 and 300 mg/kg/day as low GABA tea (LGT) and high GABA tea (HGT) groups, respectively, pure GABA at dose 150 and 300 mg/kg/day as LG and HG groups, respectively, green tea (GT) as control of LGT and HGT groups. After 12 weeks, cardiac tissues were analyzed by histological analysis, western blotting, and TUNEL assays. GABA tea, GT, and pure GABA decreased hypertension-induced cardiac abnormalities, including abnormal myocardial architecture. In addition, GABA tea, GT, and pure GABA dramatically increased anti-apoptotic protein, Bcl2. Furthermore, GABA tea, GT, and pure GABA also decreased activated-caspase 9 and activated-caspase 3. Additionally, the survival associated protein IGF-I and PI3K/Akt were enhanced in cardiac tissues upon treatment. Our results showed an optimistic anti-apoptotic and pro-survival effects of GABA tea treatment against hypertensive rat hearts.
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Affiliation(s)
- Bih-Cheng Chen
- School of Post-Baccalaureate Chinese Medicine, China Medical University, Taichung, Taiwan
- Graduate Institute of Chinese Medical Science, China Medical University, Taichung, Taiwan
| | - Meng-Yu Hung
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Hsueh-Fang Wang
- Department of Nutrition, Graduate Programs of Biomedical Nutrition, Hungkuang University, Taichung, Taiwan
| | - Li-Jen Yeh
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Sudhir Pandey
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Ray-Jade Chen
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Ruey-Lin Chang
- School of Post-Baccalaureate Chinese Medicine, China Medical University, Taichung, Taiwan
| | | | - Kuan-Ho Lin
- College of Medicine, China Medical University, Taichung, 40402, Taiwan
- Department of Emergency Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Chih-Yang Huang
- Graduate Institute of Chinese Medical Science, China Medical University, Taichung, Taiwan
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
- Department of Biotechnology, Asia University, Taichung, Taiwan
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37
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Beckendorf J, van den Hoogenhof MMG, Backs J. Physiological and unappreciated roles of CaMKII in the heart. Basic Res Cardiol 2018; 113:29. [PMID: 29905892 PMCID: PMC6003982 DOI: 10.1007/s00395-018-0688-8] [Citation(s) in RCA: 111] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 06/11/2018] [Indexed: 12/27/2022]
Abstract
In the cardiomyocyte, CaMKII has been identified as a nodal influencer of excitation-contraction and also excitation-transcription coupling. Its activity can be regulated in response to changes in intracellular calcium content as well as after several post-translational modifications. Some of the effects mediated by CaMKII may be considered adaptive, while effects of sustained CaMKII activity may turn into the opposite and are detrimental to cardiac integrity and function. As such, CaMKII has long been noted as a promising target for pharmacological inhibition, but the ubiquitous nature of CaMKII has made it difficult to target CaMKII specifically where it is detrimental. In this review, we provide a brief overview of the physiological and pathophysiological properties of CaMKII signaling, but we focus on the physiological and adaptive functions of CaMKII. Furthermore, special consideration is given to the emerging role of CaMKII as a mediator of inflammatory processes in the heart.
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Affiliation(s)
- Jan Beckendorf
- Department for Molecular Cardiology and Epigenetics, University Hospital Heidelberg, Im Neuenheimer Feld 669, 69120, Heidelberg, Germany.,Department for Cardiology, Angiology and Pneumology, University Hospital Heidelberg, Heidelberg, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Heidelberg/Mannheim, Heidelberg, Germany
| | - Maarten M G van den Hoogenhof
- Department for Molecular Cardiology and Epigenetics, University Hospital Heidelberg, Im Neuenheimer Feld 669, 69120, Heidelberg, Germany.,DZHK (German Centre for Cardiovascular Research), Partner Site Heidelberg/Mannheim, Heidelberg, Germany
| | - Johannes Backs
- Department for Molecular Cardiology and Epigenetics, University Hospital Heidelberg, Im Neuenheimer Feld 669, 69120, Heidelberg, Germany. .,DZHK (German Centre for Cardiovascular Research), Partner Site Heidelberg/Mannheim, Heidelberg, Germany.
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38
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Yang X, Liu N, Li X, Yang Y, Wang X, Li L, Jiang L, Gao Y, Tang H, Tang Y, Xing Y, Shang H. A Review on the Effect of Traditional Chinese Medicine Against Anthracycline-Induced Cardiac Toxicity. Front Pharmacol 2018; 9:444. [PMID: 29867456 PMCID: PMC5963334 DOI: 10.3389/fphar.2018.00444] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Accepted: 04/16/2018] [Indexed: 01/29/2023] Open
Abstract
Anthracyclines are effective agents generally used to treat solid-tumor and hematologic malignancies. The use of anthracyclines for over 40 years has improved cancer survival statistics. Nevertheless, the clinical utility of anthracyclines is limited by its dose-dependent cardiotoxicity that adversely affects 10-30% of patients. Anthracycline-induced cardiotoxicity may be classified as acute/subacute or chronic/late toxicity and leads to devastating adverse effects resulting in poor quality of life, morbidity, and premature mortality. Traditional Chinese medicine has a history of over 2,000 years, involving both unique theories and substantial experience. Several studies have investigated the potential of natural products to decrease the cardiotoxic effects of chemotherapeutic agents on healthy cells, without negatively affecting their antineoplastic activity. This article discusses the mechanism of anthracycline-induced cardiotoxicity, and summarizes traditional Chinese medicine treatment for anthracycline-induced heart failure (HF), cardiac arrhythmia, cardiomyopathy, and myocardial ischemia in recent years, in order to provide a reference for the clinical prevention and treatment of cardiac toxicity.
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Affiliation(s)
- Xinyu Yang
- Guang'anmen Hospital, Chinese Academy of Chinese Medical Sciences, Beijing, China.,Key Laboratory of Chinese Internal Medicine of the Ministry of Education, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - Nian Liu
- Department of Cardiology, Beijing Anzhen Hospital of the Capital University of Medical Sciences, Beijing, China
| | - Xinye Li
- Guang'anmen Hospital, Chinese Academy of Chinese Medical Sciences, Beijing, China.,Key Laboratory of Chinese Internal Medicine of the Ministry of Education, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - Yihan Yang
- Guang'anmen Hospital, Chinese Academy of Chinese Medical Sciences, Beijing, China.,Key Laboratory of Chinese Internal Medicine of the Ministry of Education, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - Xiaofeng Wang
- Key Laboratory of Chinese Internal Medicine of the Ministry of Education, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - Linling Li
- Department of Cardiology, Beijing Anzhen Hospital of the Capital University of Medical Sciences, Beijing, China
| | - Le Jiang
- Department of Cardiology, Beijing Anzhen Hospital of the Capital University of Medical Sciences, Beijing, China
| | - Yonghong Gao
- Key Laboratory of Chinese Internal Medicine of the Ministry of Education, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - Hebin Tang
- Department of Pharmacology, School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Yong Tang
- Department of Pancreatic Oncology, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Yanwei Xing
- Guang'anmen Hospital, Chinese Academy of Chinese Medical Sciences, Beijing, China
| | - Hongcai Shang
- Key Laboratory of Chinese Internal Medicine of the Ministry of Education, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
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39
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Broughton KM, Wang BJ, Firouzi F, Khalafalla F, Dimmeler S, Fernandez-Aviles F, Sussman MA. Mechanisms of Cardiac Repair and Regeneration. Circ Res 2018; 122:1151-1163. [PMID: 29650632 PMCID: PMC6191043 DOI: 10.1161/circresaha.117.312586] [Citation(s) in RCA: 113] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Cardiovascular regenerative therapies are pursued on both basic and translational levels. Although efficacy and value of cell therapy for myocardial regeneration can be debated, there is a consensus that profound deficits in mechanistic understanding limit advances, optimization, and implementation. In collaboration with the TACTICS (Transnational Alliance for Regenerative Therapies in Cardiovascular Syndromes), this review overviews several pivotal aspects of biological processes impinging on cardiac maintenance, repair, and regeneration. The goal of summarizing current mechanistic understanding is to prompt innovative directions for fundamental studies delineating cellular reparative and regenerative processes. Empowering myocardial regenerative interventions, whether dependent on endogenous processes or exogenously delivered repair agents, ultimately depends on mastering mechanisms and novel strategies that take advantage of rather than being limited by inherent myocardial biology.
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Affiliation(s)
- Kathleen M Broughton
- From the Department of Biology, San Diego State University Heart Institute and the Integrated Regenerative Research Institute, CA (K.M.B., B.J.W., F.F., F.K., M.A.S.); Institute for Cardiovascular Regeneration, Center of Molecular Medicine, Frankfurt, Germany (S.D.); and Department of Cardiology, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), CIBERCV and Universidad Complutense de Madrid, Spain (F.F.-A.)
| | - Bingyan J Wang
- From the Department of Biology, San Diego State University Heart Institute and the Integrated Regenerative Research Institute, CA (K.M.B., B.J.W., F.F., F.K., M.A.S.); Institute for Cardiovascular Regeneration, Center of Molecular Medicine, Frankfurt, Germany (S.D.); and Department of Cardiology, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), CIBERCV and Universidad Complutense de Madrid, Spain (F.F.-A.)
| | - Fareheh Firouzi
- From the Department of Biology, San Diego State University Heart Institute and the Integrated Regenerative Research Institute, CA (K.M.B., B.J.W., F.F., F.K., M.A.S.); Institute for Cardiovascular Regeneration, Center of Molecular Medicine, Frankfurt, Germany (S.D.); and Department of Cardiology, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), CIBERCV and Universidad Complutense de Madrid, Spain (F.F.-A.)
| | - Farid Khalafalla
- From the Department of Biology, San Diego State University Heart Institute and the Integrated Regenerative Research Institute, CA (K.M.B., B.J.W., F.F., F.K., M.A.S.); Institute for Cardiovascular Regeneration, Center of Molecular Medicine, Frankfurt, Germany (S.D.); and Department of Cardiology, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), CIBERCV and Universidad Complutense de Madrid, Spain (F.F.-A.)
| | - Stefanie Dimmeler
- From the Department of Biology, San Diego State University Heart Institute and the Integrated Regenerative Research Institute, CA (K.M.B., B.J.W., F.F., F.K., M.A.S.); Institute for Cardiovascular Regeneration, Center of Molecular Medicine, Frankfurt, Germany (S.D.); and Department of Cardiology, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), CIBERCV and Universidad Complutense de Madrid, Spain (F.F.-A.)
| | - Francisco Fernandez-Aviles
- From the Department of Biology, San Diego State University Heart Institute and the Integrated Regenerative Research Institute, CA (K.M.B., B.J.W., F.F., F.K., M.A.S.); Institute for Cardiovascular Regeneration, Center of Molecular Medicine, Frankfurt, Germany (S.D.); and Department of Cardiology, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), CIBERCV and Universidad Complutense de Madrid, Spain (F.F.-A.)
| | - Mark A Sussman
- From the Department of Biology, San Diego State University Heart Institute and the Integrated Regenerative Research Institute, CA (K.M.B., B.J.W., F.F., F.K., M.A.S.); Institute for Cardiovascular Regeneration, Center of Molecular Medicine, Frankfurt, Germany (S.D.); and Department of Cardiology, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), CIBERCV and Universidad Complutense de Madrid, Spain (F.F.-A.).
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Madungwe NB, Feng Y, Lie M, Tombo N, Liu L, Kaya F, Bopassa JC. Mitochondrial inner membrane protein (mitofilin) knockdown induces cell death by apoptosis via an AIF-PARP-dependent mechanism and cell cycle arrest. Am J Physiol Cell Physiol 2018; 315:C28-C43. [PMID: 29489384 DOI: 10.1152/ajpcell.00230.2017] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Mitofilin is an inner membrane protein that has been defined as a mitochondria-shaping protein in controlling and maintaining mitochondrial cristae structure and remodeling. We determined the role of mitofilin in cell survival by investigating the mechanism underlying mitofilin knockdown-induced cell death by apoptosis. Cultured H9c2 myoblasts and HEK 293 cells were treated with mitofilin siRNA or scrambled siRNA for 24 h. Cell death (apoptosis), caspase 3 activity and cell cycle phases were assessed by flow cytometry, while cytochrome c release and intracellular ATP production were measured by ELISA. Mitofilin, apoptosis-inducing factor (AIF) and poly(ADP-ribose) polymerase (PARP) expression were measured by Western blot analysis and calpain activity was assessed using a calpain activity kit. Mitochondrial images were taken using electron microscopy. We found that mitofilin knockdown increases apoptosis mainly via activation of the AIF-PARP pathway leading to nuclear fragmentation that is correlated with S phase arrest of the cell cycle. Knockdown of mitofilin also led to mitochondrial swelling and damage of cristae that is associated with the increase in reactive oxygen species production and mitochondrial calpain activity, as well as a marked decrease in intracellular ATP production and mitochondrial membrane potential. Together, these results indicate that mitofilin knockdown by siRNA increases calpain activity that presumably leads to mitochondrial structural degradation resulting in a critical reduction of mitochondrial function that is responsible for the increase in cell death by apoptosis via an AIF-PARP mechanism and associated with nuclear fragmentation, and S phase arrest of the cell cycle.
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Affiliation(s)
- Ngonidzashe B Madungwe
- Department of Cellular and Integrative Physiology, School of Medicine, University of Texas Health Science Center at San Antonio , San Antonio, Texas.,Department of Biomedical Engineering, University of Texas at San Antonio , San Antonio, Texas
| | - Yansheng Feng
- Department of Cellular and Integrative Physiology, School of Medicine, University of Texas Health Science Center at San Antonio , San Antonio, Texas.,Department of Pathophysiology, Xinxiang Medical University, Xinxiang, China
| | - Mihaela Lie
- Department of Cellular and Integrative Physiology, School of Medicine, University of Texas Health Science Center at San Antonio , San Antonio, Texas
| | - Nathalie Tombo
- Department of Cellular and Integrative Physiology, School of Medicine, University of Texas Health Science Center at San Antonio , San Antonio, Texas
| | - Li Liu
- Department of Cellular and Integrative Physiology, School of Medicine, University of Texas Health Science Center at San Antonio , San Antonio, Texas
| | - Ferdinand Kaya
- Department of Ophthalmology, University of California , Davis, California
| | - Jean C Bopassa
- Department of Cellular and Integrative Physiology, School of Medicine, University of Texas Health Science Center at San Antonio , San Antonio, Texas
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41
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Rbm24, a target of p53, is necessary for proper expression of p53 and heart development. Cell Death Differ 2018; 25:1118-1130. [PMID: 29358667 DOI: 10.1038/s41418-017-0029-8] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 09/29/2017] [Accepted: 10/19/2017] [Indexed: 01/08/2023] Open
Abstract
Activation of p53-dependent apoptosis is critical for tumor suppression but aberrant activation of p53 also leads to developmental defects and heart failure. Here, we found that Rbm24 RNA-binding protein, a target of p53, regulates p53 mRNA translation. Mechanistically, we found that through binding to p53 mRNA and interaction with translation initiation factor eIF4E, Rbm24 prevents eIF4E from binding to p53 mRNA and inhibits the assembly of translation initiation complex. Importantly, we showed that mice deficient in Rbm24 die in utero due to the endocardial cushion defect in the heart at least in part due to aberrant activation of p53-dependent apoptosis. We also showed that the heart developmental defect in Rbm24-null mice can be partially rescued by p53 deficiency through decreased apoptosis in the heart. Together, we postulate that the p53-Rbm24 loop is critical for the heart development and may be explored for mitigating congenital heart diseases and heart failure.
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Weng X, Zhang X, Lu X, Wu J, Li S. Reduced mitochondrial response sensitivity is involved in the anti‑apoptotic effect of dexmedetomidine pretreatment in cardiomyocytes. Int J Mol Med 2018; 41:2328-2338. [PMID: 29328437 DOI: 10.3892/ijmm.2018.3384] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Accepted: 01/10/2018] [Indexed: 11/05/2022] Open
Abstract
Dexmedetomidine is a commonly used α2-adreno-ceptor agonist, which affects various organs, including providing beneficial effects on the heart. However, the mechanism underlying the cardiac benefit remains to be fully elucidated. In the present study, it was demonstrated that dexmedetomidine pretreatment on primary cultured rat cardiomyocytes protected against reactive oxygen species (ROS)‑induced apoptosis. In terms of the potential mechanism, it was demonstrated that dexmedetomidine inhibited mitochondrial biogenesis and mitochondrial respiratory complexes, but with increased coupling efficiency. However, dexmedetomidine upregulated mitochondrial membrane potential (Δψm) and resisted against the loss of Δψm induced by carbonilcyanide p‑triflouromethoxyphenylhydrazone. Due to the importance of mitochondria affecting ROS, the present study investigated the dexmedetomidine‑suppressed mitochondrial response to H2O2 stimulation, which was explained by suppressed ROS levels and the suppression of the increased oxygen consumption rate. Results demonstrated for the first time, to the best of our knowledge, a novel protective mechanism for dexmedetomidine on cardiomyocytes through the attenuated response of mitochondria towards H2O2, which had a protective effect against ROS‑induced apoptosis.
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Affiliation(s)
- Xiaojian Weng
- Department of Anesthesiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
| | - Xiaodan Zhang
- Department of Intensive Care Unit, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
| | - Xiaofei Lu
- Department of Anesthesiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
| | - Jin Wu
- Department of Anesthesiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
| | - Shitong Li
- Department of Anesthesiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, P.R. China
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43
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Abstract
Cardiovascular disease (CVD) accounts for more deaths globally than any other single disease. There are on average 1.5 million episodes of myocardial infarction (heart attack) each year in the United States alone with roughly one-third resulting in death. There is therefore a major need for developing new and effective strategies to promote cardiac repair. Intramyocardial transplantation of mesenchymal stem cells (MSCs) has emerged as a leading contender in the pursuit of clinical intervention and therapy. MSCs are potent mediators of cardiac repair and are therefore an attractive tool in the development of preclinical and clinical trials. MSCs are capable of secreting a large array of soluble factors, which have had demonstrated effects on pathogenic cardiac remolding, fibrosis, immune activation, and cardiac stem cell proliferation within the damaged heart. MSCs are also capable of differentiation into cardiomyocytes, endothelial cells, and vascular smooth muscle cells, although the relative contribution of trilineage differentiation and paracrine effectors on cardiac repair remains the subject of active investigation.
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44
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Kawai Y, Nuka E. Abundance of DNA adducts of 4-oxo-2-alkenals, lipid peroxidation-derived highly reactive genotoxins. J Clin Biochem Nutr 2017; 62:3-10. [PMID: 29362517 PMCID: PMC5773838 DOI: 10.3164/jcbn.17-90] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Accepted: 10/20/2017] [Indexed: 12/26/2022] Open
Abstract
Reactive oxygen species and their reaction products can damage DNA to form mutagenic lesions. Among the reactive species, lipid peroxidation-derived aldehydes react with nucleobases and form bulky exocyclic adducts. Many types of aldehyde-derived DNA adducts have been characterized, identified and detected in vitro and in vivo, whereas relative quantitative and pathophysiological contributions of each adduct still remain unclear. In recent years, an abundant class of DNA adducts derived from 4-oxo-2-alkenals have been identified, in addition to classic aldehyde-derived adducts. The presence of 4-oxo-2-alkenal-derived DNA adducts associated with age-related diseases has been revealed in rodents and humans. In vitro studies have demonstrated that 4-oxo-2-alkenals, as compared with other classes of lipid peroxidation-derived aldehydes, are highly reactive with nucleobases. It has been generally recognized that 4-oxo-2-alkenals are generated through oxidative degradation of the corresponding 4-hydroperoxy-2-alkenals, homolytic degradation products of polyunsaturated fatty acid hydroperoxides. Our recent results have also shown an alternative pathway for the formation of 4-oxo-2-alkenals, in which 2-alkenals could undergo the metal-catalyzed autoxidation resulting in the formation of the corresponding 4-oxo-2-alkenals. This review summarizes the basis of the formation of lipid peroxidation-derived genotoxic aldehydes and their covalent adduction to nucleobases, especially focusing on the abundance of 4-oxo-2-alkenal-derived DNA adducts.
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Affiliation(s)
- Yoshichika Kawai
- Department of Food Science, Graduate School of Biomedical Science, Tokushima University, Kuramoto-cho 3-18-15, Tokushima 770-8503, Japan
| | - Erika Nuka
- Department of Food Science, Graduate School of Biomedical Science, Tokushima University, Kuramoto-cho 3-18-15, Tokushima 770-8503, Japan
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45
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Papadakis E, Kanakis M, Kataki A, Spandidos DA. The spectrum of myocardial homeostasis mechanisms in the settings of cardiac surgery procedures (Review). Mol Med Rep 2017; 17:2089-2099. [PMID: 29207125 PMCID: PMC5783448 DOI: 10.3892/mmr.2017.8174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 11/28/2017] [Indexed: 12/13/2022] Open
Abstract
Classic cardiac surgery, determined through the function of cardiopulmonary bypass machine and myocardial cardioplegic arrest, represents the most controlled scenario for cardiomyocyte homeostatic disturbances due to systemic inflammatory response and myocardial reperfusion injury. An increasing number of studies have demonstrated that myocardial cell homeostasis in cardiac surgery procedures is a sequence of molecularly interrelated and overlapping mechanisms in the form of apoptosis, autophagy and necrosis, which are activated by a plethora of induced inflammatory mediators and gene-related signaling pathways. In this study, we outline the molecular mechanisms of the cardiomyocyte adaptive homeostatic process and the associated clinical implications, in the settings of classic cardiac surgery procedures.
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Affiliation(s)
- Emmanuel Papadakis
- Department of Cardiac Surgery, Onassis Cardiac Surgery Center, 17674 Athens, Greece
| | - Meletios Kanakis
- Cardiothoracic Surgery Unit, Great Ormond Street Hospital for Children, WC1N 3JH London, UK
| | - Agapi Kataki
- Propaedeutic Surgery First Department, University of Athens, 11527 Athens, Greece
| | - Demetrios A Spandidos
- Laboratory of Clinical Virology, Medical School, University of Crete, 71003 Heraklion, Crete, Greece
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46
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Bradley JM, Li Z, Organ CL, Polhemus DJ, Otsuka H, Islam KN, Bhushan S, Gorodnya OM, Ruchko MV, Gillespie MN, Wilson GL, Lefer DJ. A novel mtDNA repair fusion protein attenuates maladaptive remodeling and preserves cardiac function in heart failure. Am J Physiol Heart Circ Physiol 2017; 314:H311-H321. [PMID: 29101177 DOI: 10.1152/ajpheart.00515.2017] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Oxidative stress results in mtDNA damage and contributes to myocardial cell death. mtDNA repair enzymes are crucial for mtDNA repair and cell survival. We investigated a novel, mitochondria-targeted fusion protein (Exscien1-III) containing endonuclease III in myocardial ischemia-reperfusion injury and transverse aortic constriction (TAC)-induced heart failure. Male C57/BL6J mice (10-12 wk) were subjected to 45 min of myocardial ischemia and either 24 h or 4 wk of reperfusion. Exscien1-III (4 mg/kg ip) or vehicle was administered at the time of reperfusion. Male C57/BL6J mice were subjected to TAC, and Exscien1-III (4 mg/kg i.p) or vehicle was administered daily starting at 3 wk post-TAC and continued for 12 wk. Echocardiography was performed to assess left ventricular (LV) structure and function. Exscien1-III reduced myocardial infarct size ( P < 0.01) at 24 h of reperfusion and preserved LV ejection fraction at 4 wk postmyocardial ischemia. Exscien1-III attenuated TAC-induced LV dilation and dysfunction at 6-12 wk post-TAC ( P < 0.05). Exscien1-III reduced ( P < 0.05) cardiac hypertrophy and maladaptive remodeling after TAC. Assessment of cardiac mitochondria showed that Exscien1-III localized to mitochondria and increased mitochondrial antioxidant and reduced apoptotic markers. In conclusion, our results indicate that administration of Exscien1-III provides significant protection against myocardial ischemia and preserves myocardial structure and LV performance in the setting of heart failure. NEW & NOTEWORTHY Oxidative stress-induced mitochondrial DNA damage is a prominent feature in the pathogenesis of cardiovascular diseases. In the present study, we demonstrate the efficacy of a novel, mitochondria-targeted fusion protein that traffics endonuclease III specifically for mitochondrial DNA repair in two well-characterized murine models of cardiac injury and failure.
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Affiliation(s)
- Jessica M Bradley
- Cardiovascular Center of Excellence and Department of Pharmacology, Louisiana State University Health Sciences Center , New Orleans, Louisiana
| | - Zhen Li
- Cardiovascular Center of Excellence and Department of Pharmacology, Louisiana State University Health Sciences Center , New Orleans, Louisiana
| | - Chelsea L Organ
- Cardiovascular Center of Excellence and Department of Pharmacology, Louisiana State University Health Sciences Center , New Orleans, Louisiana
| | - David J Polhemus
- Cardiovascular Center of Excellence and Department of Pharmacology, Louisiana State University Health Sciences Center , New Orleans, Louisiana
| | - Hiroyuki Otsuka
- Cardiovascular Center of Excellence and Department of Pharmacology, Louisiana State University Health Sciences Center , New Orleans, Louisiana
| | - Kazi N Islam
- Department of Surgery, Louisiana State University Health Sciences Center , New Orleans, Louisiana
| | - Shashi Bhushan
- Cardiovascular Center of Excellence and Department of Pharmacology, Louisiana State University Health Sciences Center , New Orleans, Louisiana
| | - Olena M Gorodnya
- College of Medicine, University of South Alabama , Mobile, Alabama
| | | | - Mark N Gillespie
- College of Medicine, University of South Alabama , Mobile, Alabama
| | - Glenn L Wilson
- College of Medicine, University of South Alabama , Mobile, Alabama.,Exscien Corporation , Mobile, Alabama
| | - David J Lefer
- Cardiovascular Center of Excellence and Department of Pharmacology, Louisiana State University Health Sciences Center , New Orleans, Louisiana
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47
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Booth SA, Charchar FJ. Cardiac telomere length in heart development, function, and disease. Physiol Genomics 2017; 49:368-384. [DOI: 10.1152/physiolgenomics.00024.2017] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Telomeres are repetitive nucleoprotein structures at chromosome ends, and a decrease in the number of these repeats, known as a reduction in telomere length (TL), triggers cellular senescence and apoptosis. Heart disease, the worldwide leading cause of death, often results from the loss of cardiac cells, which could be explained by decreases in TL. Due to the cell-specific regulation of TL, this review focuses on studies that have measured telomeres in heart cells and critically assesses the relationship between cardiac TL and heart function. There are several lines of evidence that have identified rapid changes in cardiac TL during the onset and progression of heart disease as well as at critical stages of development. There are also many factors, such as the loss of telomeric proteins, oxidative stress, and hypoxia, that decrease cardiac TL and heart function. In contrast, antioxidants, calorie restriction, and exercise can prevent both cardiac telomere attrition and the progression of heart disease. TL in the heart is also indicative of proliferative potential and could facilitate the identification of cells suitable for cardiac rejuvenation. Although these findings highlight the involvement of TL in heart function, there are important questions regarding the validity of animal models, as well as several confounding factors, that need to be considered when interpreting results and planning future research. With these in mind, elucidating the telomeric mechanisms involved in heart development and the transition to disease holds promise to prevent cardiac dysfunction and potentiate regeneration after injury.
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Affiliation(s)
- S. A. Booth
- Faculty of Science and Technology, School of Applied and Biomedical Sciences, Federation University Australia, Balllarat, Australia
| | - F. J. Charchar
- Faculty of Science and Technology, School of Applied and Biomedical Sciences, Federation University Australia, Balllarat, Australia
- Department of Physiology, The University of Melbourne, Melbourne, Australia; and
- Department of Cardiovascular Sciences, University of Leicester, Leicester, United Kingdom
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48
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Lin YC, Lin CH, Yao HT, Kuo WW, Shen CY, Yeh YL, Ho TJ, Padma VV, Lin YC, Huang CY, Huang CY. Platycodon grandiflorum (PG) reverses angiotensin II-induced apoptosis by repressing IGF-IIR expression. JOURNAL OF ETHNOPHARMACOLOGY 2017; 205:41-50. [PMID: 28473244 DOI: 10.1016/j.jep.2017.04.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 04/26/2017] [Accepted: 04/28/2017] [Indexed: 06/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Platycodon grandiflorum (PG) is a Chinese medical plant used for decades as a traditional prescription to eliminate phlegm, relieve cough, reduce inflammation and lower blood pressure. PG also has a significant effect on the cardiovascular systems. MATERIALS AND METHODS The aqueous extract of Platycodon grandiflorum (JACQ.) A. DC. root was screened for inhibiting Ang II-induced IGF-IIR activation and apoptosis pathway in H9c2 cardiomyocytes. The effects were also studied in spontaneously hypertensive rats (five groups, n=5) using low and high doses of PG for 50 days. The Ang II-induced IGF-IIR activation was analyzed by luciferase reporter, RT-PCR, western blot and surface IGF-IIR expression assay. Furthermore, the major active constituent of PG was carried out by high performance liquid chromatography-mass spectrometry (HPLC-MS). RESULTS Our results indicate that a crude extract of PG significantly suppresses the Ang II-induced IGF-IIR signaling pathway to prevent cardiomyocyte apoptosis. PG extract inhibits Ang II-mediated JNK activation and SIRT1 degradation to reduce IGF-IIR activity. Moreover, PG maintains SIRT1 stability to enhance HSF1-mediated IGF-IIR suppression, which prevents cardiomyocyte apoptosis. In animal models, the administration of PG markedly reduced this apoptotic pathway in the heart of SHRs. CONCLUSION Taken together, PG may be considered as an effective treatment for cardiac diseases in hypertensive patients.
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Affiliation(s)
- Yuan-Chuan Lin
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Chih-Hsueh Lin
- Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan; School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
| | - Hsien-Tsung Yao
- Department of Nutrition, China Medical University, Taichung, Taiwan
| | - Wei-Wen Kuo
- Department of Biological Science and Technology, China Medical University, Taichung, Taiwan
| | - Chia-Yao Shen
- Department of Nursing, Mei Ho University, Pingguang Road, Pingtung, Taiwan
| | - Yu-Lan Yeh
- Department of Pathology, Changhua Christian Hospital, Changhua, Taiwan; Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan
| | - Tsung-Jung Ho
- Chinese Medicine Department, China Medical University Beigang Hospital, Taichung, Taiwan
| | - V Vijaya Padma
- Department of Biotechnology, Bharathiar University, Coimbatore 641046, India
| | - Yu-Chen Lin
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Chih-Yang Huang
- Translation Research Core, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Chih-Yang Huang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan; Graduate Institute of Chinese Medical Science, China Medical University, Taichung, Taiwan; Department of Biological Science, Asia University, Taichung, Taiwan; Faculty of Applied Sciences, Ton Duc Thang University, Tan Phong Ward, District 7, 700000 Ho Chi Minh City, Vietnam.
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Adameova A, Hrdlicka J, Szobi A, Farkasova V, Kopaskova K, Murarikova M, Neckar J, Kolar F, Ravingerova T, Dhalla NS. Evidence of necroptosis in hearts subjected to various forms of ischemic insults. Can J Physiol Pharmacol 2017; 95:1163-1169. [PMID: 28472590 DOI: 10.1139/cjpp-2016-0609] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Long-lasting ischemia can result in cell loss; however, repeated episodes of brief ischemia increase the resistance of the heart against deleterious effects of subsequent prolonged ischemic insult and promote cell survival. Traditionally, it is believed that the supply of blood to the ischemic heart is associated with release of cytokines, activation of inflammatory response, and induction of necrotic cell death. In the past few years, this paradigm of passive necrosis as an uncontrolled cell death has been re-examined and the existence of a strictly regulated form of necrotic cell death, necroptosis, has been documented. This controlled cell death modality, resembling all morphological features of necrosis, has been investigated in different types of ischemia-associated heart injuries. The process of necroptosis has been found to be dependent on the activation of RIP1-RIP3-MLKL axis, which induces changes leading to the rupture of cell membrane. This pathway is activated by TNF-α, which has also been implicated in the cardioprotective signaling pathway of ischemic preconditioning. Thus, this review is intended to describe the TNF-α-mediated signaling leading to either cell survival or necroptotic cell death. In addition, some experimental data suggesting a link between heart dysfunction and the cellular loss due to necroptosis are discussed in various conditions of myocardial ischemia.
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Affiliation(s)
- Adriana Adameova
- a Department of Pharmacology and Toxicology, Faculty of Pharmacy, Comenius University in Bratislava, Slovak Republic
| | - Jaroslav Hrdlicka
- b Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
| | - Adrian Szobi
- a Department of Pharmacology and Toxicology, Faculty of Pharmacy, Comenius University in Bratislava, Slovak Republic
| | - Veronika Farkasova
- c Institute for Heart Research, Slovak Academy of Sciences and Centre of Excellence, SAS NOREG, Bratislava, Slovak Republic
| | - Katarina Kopaskova
- a Department of Pharmacology and Toxicology, Faculty of Pharmacy, Comenius University in Bratislava, Slovak Republic
| | - Martina Murarikova
- c Institute for Heart Research, Slovak Academy of Sciences and Centre of Excellence, SAS NOREG, Bratislava, Slovak Republic
| | - Jan Neckar
- b Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
| | - Frantisek Kolar
- b Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
| | - Tatiana Ravingerova
- c Institute for Heart Research, Slovak Academy of Sciences and Centre of Excellence, SAS NOREG, Bratislava, Slovak Republic
| | - Naranjan S Dhalla
- d Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB R2H 2A6, Canada
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50
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Pang LZ, Ju AC, Zheng XJ, Li F, Song YF, Zhao Y, Gu YF, Chen FL, Liu CH, Qi J, Gao Z, Kou JP, Yu BY. YiQiFuMai Powder Injection attenuates coronary artery ligation-induced myocardial remodeling and heart failure through modulating MAPKs signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2017; 202:67-77. [PMID: 28237302 DOI: 10.1016/j.jep.2017.02.032] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 01/27/2017] [Accepted: 02/08/2017] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE YiQiFuMai Powder Injection (YQFM), a traditional Chinese medicine prescription re-developed based on Sheng-Mai-San, is a classical and traditional therapeutic for clinical heart failure (HF) and angina. However, its potential mechanism against HF remains unclear. AIM OF THE STUDY The present study observes the therapeutic role of YQFM and mechanisms underlying its effects on coronary artery ligation (CAL)-induced myocardial remodeling (MR) and HF. METHODS MR and HF were induced by permanent CAL for 2 weeks in ICR mice. Then mice were treated with YQFM (0.13g/kg, 0.26g/kg and 0.53g/kg) once a day until 2 weeks later. Cardiac structure and function were evaluated by echocardiography. Serum lactate dehydrogenase (LDH), creatine kinase (CK) and malondialdehyde (MDA) were measured by biochemical kits and cardiomyocyte morphology was assessed by hematoxylin-eosin (HE) staining. Myocardial hydroxyproline (HYP), serum amino-terminal pro-peptide of pro-collagen type III (PIIINP), and Masson's trichrome staining were employed to evaluate cardiac fibrosis. Circulating level of N-terminal pro-B-type natriuretic peptide (NT-proBNP) was tested by ELISA kit to predict prognosis of CAL-induced HF. Effects of YQFM on the mitogen-activated protein kinases (MAPKs) pathway after CAL operation was evaluated by Western blotting and immunohistochemistry assay. RESULTS YQFM (0.53g/kg) improved the left ventricular (LV) function and structure impairment after 2 weeks in CAL mice. YQFM administration also decreased LDH and CK activities, circulating levels of MDA, PIIINP, NT-proBNP, and HYP contents. Moreover, YQFM ameliorated cardiac injury and fibrosis. Furthermore, YQFM (0.53g/kg) inhibited the myocardial phosphorylation of MAPKs in HF mice. CONCLUSION Our findings suggest that YQFM attenuates CAL-induced HF via improving cardiac function, attenuating structure damage, oxidative stress, necrosis, collagen deposition, and fibrosis. In addition, YQFM ameliorates cardiac remodeling and HF, partially through inhibiting the MAPKs signaling pathways. These data provide insights and mechanisms into the widely application of YQFM in patients with HF, MI and other ischemic heart diseases.
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Affiliation(s)
- Li-Zhi Pang
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China
| | - Ai-Chun Ju
- Department of Technology Development, TianJin Tasly Pride Pharmaceutical Co., Ltd., Tianjin 300410, China
| | - Xian-Jie Zheng
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China
| | - Fang Li
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China
| | - Yun-Fei Song
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China
| | - Yan Zhao
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China
| | - Yuan-Feng Gu
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China
| | - Fei-Leng Chen
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China
| | - Chun-Hua Liu
- Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang 550004, Guizhou, China
| | - Jin Qi
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China
| | - Zhen Gao
- Department of Medicine-Ather&Lipo, Baylor Colledge of Medicine, One Baylor Plaza, Houston 77030, TX, USA
| | - Jun-Ping Kou
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China.
| | - Bo-Yang Yu
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, PR China.
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