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Ghosh M, Khanam R, Sengupta A, Chakraborty S. Oxidative-stress induced Bmp2-Smad1/5/8 signaling dependent differentiation of early cardiomyocytes from embryonic and adult epicardial cells. Differentiation 2024; 136:100756. [PMID: 38471281 DOI: 10.1016/j.diff.2024.100756] [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: 06/19/2023] [Revised: 02/15/2024] [Accepted: 02/17/2024] [Indexed: 03/14/2024]
Abstract
Heart failure has become a major life-threatening cause affecting millions globally, characterized by the permanent loss of adult functional cardiomyocytes leading to fibrosis which ultimately deprives the heart of its functional efficacy. Here we investigated the reparative property of embryonic and adult epicardial cells towards cardiomyocyte differentiation under oxidative stress-induced conditions along with the identification of a possible molecular signaling pathway. Isolated epicardial cells from embryonic chick hearts subjected to oxidative stress and hypoxia induction. Initial assessment of successful injury induction reveals hypertrophy of isolated epicardial cells. Detailed marker gene expression analyses and inhibitor studies reveal Bone morphogenic protein (Bmp)2-Smad1/5/8 signaling dependent cardiomyocyte lineage specification via epithelial to mesenchymal transition (EMT) post-injury. EMT is further confirmed by increased proliferation, migration, and differentiation towards cardiomyocyte lineage. We have also established an in-vivo model in adult male rats using Isoproterenol. Successful oxidative stress-mediated injury induction in adult heart was marked by increased activated fibroblasts followed by apoptosis of adult cardiomyocytes. The detailed characterization of adult epicardial cells reveals similar findings to our avian in-vitro data. Both in-vitro and in-vivo results show a significant increase in the expression of cardiomyocyte specific markers indicative of lineage specificity and activation of epicardial cells post oxidative stress mediated injury. Our findings suggest an EMT-induced reactivation of epicardial cells and early cardiomyocyte lineage specification following oxidative stress in a Bmp2- Smad1/5/8 dependent manner. Overall, this regulatory mechanism of cardiomyocyte differentiation induced by oxidative stress may contribute to the field of cardiac repair and regenerative therapeutics.
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Affiliation(s)
- Madhurima Ghosh
- Department of Life Sciences, Presidency University, Kolkata, 700073, India
| | - Riffat Khanam
- Department of Life Sciences, Presidency University, Kolkata, 700073, India
| | - Arunima Sengupta
- Department of Life Science and Biotechnology, Jadavpur University, Kolkata, 700032, India
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2
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Zhang H, Dhalla NS. The Role of Pro-Inflammatory Cytokines in the Pathogenesis of Cardiovascular Disease. Int J Mol Sci 2024; 25:1082. [PMID: 38256155 PMCID: PMC10817020 DOI: 10.3390/ijms25021082] [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: 12/07/2023] [Revised: 01/11/2024] [Accepted: 01/12/2024] [Indexed: 01/24/2024] Open
Abstract
With cardiovascular disease (CVD) being a primary source of global morbidity and mortality, it is crucial that we understand the molecular pathophysiological mechanisms at play. Recently, numerous pro-inflammatory cytokines have been linked to several different CVDs, which are now often considered an adversely pro-inflammatory state. These cytokines most notably include interleukin-6 (IL-6),tumor necrosis factor (TNF)α, and the interleukin-1 (IL-1) family, amongst others. Not only does inflammation have intricate and complex interactions with pathophysiological processes such as oxidative stress and calcium mishandling, but it also plays a role in the balance between tissue repair and destruction. In this regard, pre-clinical and clinical evidence has clearly demonstrated the involvement and dynamic nature of pro-inflammatory cytokines in many heart conditions; however, the clinical utility of the findings so far remains unclear. Whether these cytokines can serve as markers or risk predictors of disease states or act as potential therapeutic targets, further extensive research is needed to fully understand the complex network of interactions that these molecules encompass in the context of heart disease. This review will highlight the significant advances in our understanding of the contributions of pro-inflammatory cytokines in CVDs, including ischemic heart disease (atherosclerosis, thrombosis, acute myocardial infarction, and ischemia-reperfusion injury), cardiac remodeling (hypertension, cardiac hypertrophy, cardiac fibrosis, cardiac apoptosis, and heart failure), different cardiomyopathies as well as ventricular arrhythmias and atrial fibrillation. In addition, this article is focused on discussing the shortcomings in both pathological and therapeutic aspects of pro-inflammatory cytokines in CVD that still need to be addressed by future studies.
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Affiliation(s)
- Hannah Zhang
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB R2H 2A6, Canada
- Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, College of Medicine, University of Manitoba, Winnipeg, MB R3E 0J9, Canada
| | - Naranjan S. Dhalla
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB R2H 2A6, Canada
- Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, College of Medicine, University of Manitoba, Winnipeg, MB R3E 0J9, Canada
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A. Gawad EA, El Madani M, Mostafa H, Abdel halim RM. Precision medicine as a predictive factor for risk of hospitalization of recurrent ischemic stroke patients treated with low dose aspirin. A pilot study. EGYPTIAN JOURNAL OF ANAESTHESIA 2023. [DOI: 10.1080/11101849.2023.2174833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023] Open
Affiliation(s)
| | | | - Hanan Mostafa
- Department of Anesthesia, surgical intensive care medicine and pain, Cairo University, Egypt
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4
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Banerjee D, Tian R, Cai S. The Role of Innate Immune Cells in Cardiac Injury and Repair: A Metabolic Perspective. Curr Cardiol Rep 2023; 25:631-640. [PMID: 37249739 PMCID: PMC10227821 DOI: 10.1007/s11886-023-01897-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/15/2023] [Indexed: 05/31/2023]
Abstract
PURPOSE OF REVIEW Recent technological advances have identified distinct subpopulations and roles of the cardiac innate immune cells, specifically macrophages and neutrophils. Studies on distinct metabolic pathways of macrophage and neutrophil in cardiac injury are expanding. Here, we elaborate on the roles of cardiac macrophages and neutrophils in concomitance with their metabolism in normal and diseased hearts. RECENT FINDINGS Single-cell techniques combined with fate mapping have identified the clusters of innate immune cell subpopulations present in the resting and diseased hearts. We are beginning to know about the presence of cardiac resident macrophages and their functions. Resident macrophages perform cardiac homeostatic roles, whereas infiltrating neutrophils and macrophages contribute to tissue damage during cardiac injury with eventual role in repair. Prior studies show that metabolic pathways regulate the phenotypes of the macrophages and neutrophils during cardiac injury. Profiling the metabolism of the innate immune cells, especially of resident macrophages during chronic and acute cardiac diseases, can further the understanding of cardiac immunometabolism.
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Affiliation(s)
- Durba Banerjee
- Department of Anesthesiology and Pain Medicine, University of Washington, 850 Republican St., Seattle, WA, 98109, USA
| | - Rong Tian
- Department of Anesthesiology and Pain Medicine, University of Washington, 850 Republican St., Seattle, WA, 98109, USA
| | - Shanshan Cai
- Department of Anesthesiology and Pain Medicine, University of Washington, 850 Republican St., Seattle, WA, 98109, USA.
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5
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Piccolo EB, Thorp EB, Sumagin R. Functional implications of neutrophil metabolism during ischemic tissue repair. Curr Opin Pharmacol 2022; 63:102191. [PMID: 35276496 PMCID: PMC8995387 DOI: 10.1016/j.coph.2022.102191] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 01/10/2022] [Accepted: 01/17/2022] [Indexed: 12/11/2022]
Abstract
Immune cell mobilization and their accumulation in the extravascular space is a key consequence of tissue injury. Maladaptive trafficking and immune activation following reperfusion of ischemic tissue can exacerbate tissue repair. After ischemic injury such as myocardial infarction (MI), PMNs are the first cells to arrive at the sites of insult and their response is critical for the sequential progression of ischemia from inflammation to resolution and finally to tissue repair. However, PMN-induced inflammation can also be detrimental to cardiac function and ultimately lead to heart failure. In this review, we highlight the role of PMNs during key cellular and molecular events of ischemic heart failure. We address new research on PMN metabolism, and how this orchestrates diverse functions such as PMN chemotaxis, degranulation, and phagocytosis. Particular focus is given to PMN metabolism regulation by mitochondrial function and mTOR kinase activity.
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Affiliation(s)
- Enzo B Piccolo
- Department of Pathology, Northwestern University Feinberg School of Medicine, 300 East Superior St, Chicago, IL, 60611, USA
| | - Edward B Thorp
- Department of Pathology, Northwestern University Feinberg School of Medicine, 300 East Superior St, Chicago, IL, 60611, USA.
| | - Ronen Sumagin
- Department of Pathology, Northwestern University Feinberg School of Medicine, 300 East Superior St, Chicago, IL, 60611, USA.
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6
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Salerno JA, Torquato T, Temerozo JR, Goto-Silva L, Karmirian K, Mendes MA, Sacramento CQ, Fintelman-Rodrigues N, Souza LRQ, Ornelas IM, Veríssimo CP, Aragão LGHS, Vitória G, Pedrosa CSG, da Silva Gomes Dias S, Cardoso Soares V, Puig-Pijuan T, Salazar V, Dariolli R, Biagi D, Furtado DR, Barreto Chiarini L, Borges HL, Bozza PT, Zaluar P. Guimarães M, Souza TM, Rehen SK. Inhibition of SARS-CoV-2 infection in human iPSC-derived cardiomyocytes by targeting the Sigma-1 receptor disrupts cytoarchitecture and beating. PeerJ 2021; 9:e12595. [PMID: 35036128 PMCID: PMC8697769 DOI: 10.7717/peerj.12595] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 11/14/2021] [Indexed: 12/21/2022] Open
Abstract
SARS-CoV-2 infects cardiac cells and causes heart dysfunction. Conditions such as myocarditis and arrhythmia have been reported in COVID-19 patients. The Sigma-1 receptor (S1R) is a ubiquitously expressed chaperone that plays a central role in cardiomyocyte function. S1R has been proposed as a therapeutic target because it may affect SARS-CoV-2 replication; however, the impact of the inhibition of S1R in human cardiomyocytes remains to be described. In this study, we investigated the consequences of S1R inhibition in iPSC-derived human cardiomyocytes (hiPSC-CM). SARS-CoV-2 infection in hiPSC-CM was productive and reduced cell survival. S1R inhibition decreased both the number of infected cells and viral particles after 48 hours. S1R inhibition also prevented the release of pro-inflammatory cytokines and cell death. Although the S1R antagonist NE-100 triggered those protective effects, it compromised cytoskeleton integrity by downregulating the expression of structural-related genes and reducing beating frequency. Our findings suggest that the detrimental effects of S1R inhibition in human cardiomyocytes' integrity may abrogate its therapeutic potential against COVID and should be carefully considered.
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Affiliation(s)
- José Alexandre Salerno
- Institute of Biomedical Sciences, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
- D’Or Institute for Research and Education (IDOR), Rio de Janeiro, Brazil
| | - Thayana Torquato
- D’Or Institute for Research and Education (IDOR), Rio de Janeiro, Brazil
| | - Jairo R. Temerozo
- National Institute for Science and Technology on Neuroimmunomodulation (INCT/NIM), Oswaldo Cruz Institute (IOC), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil
- Laboratory on Thymus Research, Oswaldo Cruz Institute (IOC), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil
| | - Livia Goto-Silva
- D’Or Institute for Research and Education (IDOR), Rio de Janeiro, Brazil
| | - Karina Karmirian
- Institute of Biomedical Sciences, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
- D’Or Institute for Research and Education (IDOR), Rio de Janeiro, Brazil
| | - Mayara A. Mendes
- D’Or Institute for Research and Education (IDOR), Rio de Janeiro, Brazil
| | - Carolina Q. Sacramento
- Immunopharmacology Laboratory, Oswaldo Cruz Institute (IOC), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil
- National Institute for Science and Technology on Innovation in Diseases of Neglected Populations (INCT/IDPN), Center for Technological Development in Health (CDTS), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil
| | - Natalia Fintelman-Rodrigues
- Immunopharmacology Laboratory, Oswaldo Cruz Institute (IOC), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil
- National Institute for Science and Technology on Innovation in Diseases of Neglected Populations (INCT/IDPN), Center for Technological Development in Health (CDTS), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil
| | - Letícia R Q. Souza
- D’Or Institute for Research and Education (IDOR), Rio de Janeiro, Brazil
| | - Isis M. Ornelas
- D’Or Institute for Research and Education (IDOR), Rio de Janeiro, Brazil
| | - Carla P. Veríssimo
- Institute of Biomedical Sciences, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | | | - Gabriela Vitória
- D’Or Institute for Research and Education (IDOR), Rio de Janeiro, Brazil
| | | | - Suelen da Silva Gomes Dias
- Immunopharmacology Laboratory, Oswaldo Cruz Institute (IOC), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil
| | - Vinicius Cardoso Soares
- Institute of Biomedical Sciences, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
- Immunopharmacology Laboratory, Oswaldo Cruz Institute (IOC), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil
| | - Teresa Puig-Pijuan
- D’Or Institute for Research and Education (IDOR), Rio de Janeiro, Brazil
- Carlos Chagas Filho Institute of Biophysics (IBCCF), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Vinícius Salazar
- Department of Systems and Computer Engineering, COPPE, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Rafael Dariolli
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America
- PluriCell Biotech, São Paulo, Brazil
| | | | - Daniel R. Furtado
- D’Or Institute for Research and Education (IDOR), Rio de Janeiro, Brazil
| | - Luciana Barreto Chiarini
- Carlos Chagas Filho Institute of Biophysics (IBCCF), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Helena L. Borges
- Institute of Biomedical Sciences, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Patrícia T. Bozza
- Immunopharmacology Laboratory, Oswaldo Cruz Institute (IOC), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil
| | - Marilia Zaluar P. Guimarães
- Institute of Biomedical Sciences, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
- D’Or Institute for Research and Education (IDOR), Rio de Janeiro, Brazil
| | - Thiago M.L. Souza
- Immunopharmacology Laboratory, Oswaldo Cruz Institute (IOC), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil
- National Institute for Science and Technology on Innovation in Diseases of Neglected Populations (INCT/IDPN), Center for Technological Development in Health (CDTS), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil
| | - Stevens K. Rehen
- D’Or Institute for Research and Education (IDOR), Rio de Janeiro, Brazil
- Department of Genetics, Institute of Biology, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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7
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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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8
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Xin L, Gao J, Lin H, Qu Y, Shang C, Wang Y, Lu Y, Cui X. Regulatory Mechanisms of Baicalin in Cardiovascular Diseases: A Review. Front Pharmacol 2020; 11:583200. [PMID: 33224035 PMCID: PMC7667240 DOI: 10.3389/fphar.2020.583200] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 09/15/2020] [Indexed: 12/17/2022] Open
Abstract
Cardiovascular diseases (CVDs) is the leading cause of high morbidity and mortality worldwide, which emphasizes the urgent necessity to develop new pharmacotherapies. In eastern countries, traditional Chinese medicine Scutellaria baicalensis Georgi has been used clinically for thousands of years. Baicalin is one of the main active ingredients extracted from Chinese herbal medicine S. baicalensis. Emerging evidence has established that baicalin improves chronic inflammation, immune imbalance, disturbances in lipid metabolism, apoptosis and oxidative stress. Thereby it offers beneficial roles against the initiation and progression of CVDs such as atherosclerosis, hypertension, myocardial infarction and reperfusion, and heart failure. In this review, we summarize the pharmacological features and relevant mechanisms by which baicalin regulates CVDs in the hope to reveal its application for CVDs prevention and/or therapy.
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Affiliation(s)
- Laiyun Xin
- The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China.,Department of Cardiology, Guang' anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jialiang Gao
- Department of Cardiology, Guang' anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Hongchen Lin
- Department of Cardiology, Guang' anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yi Qu
- Department of Cardiology, Guang' anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Chang Shang
- Department of Cardiology, Guang' anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yuling Wang
- Department of Cardiology, Guang' anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yingdong Lu
- Department of Cardiology, Guang' anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xiangning Cui
- Department of Cardiology, Guang' anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
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9
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Cardiac fibrosis: potential therapeutic targets. Transl Res 2019; 209:121-137. [PMID: 30930180 PMCID: PMC6545256 DOI: 10.1016/j.trsl.2019.03.001] [Citation(s) in RCA: 108] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 03/01/2019] [Accepted: 03/05/2019] [Indexed: 01/14/2023]
Abstract
Cardiovascular disease is a leading cause of mortality in the world and is exacerbated by the presence of cardiac fibrosis, defined by the accumulation of noncontractile extracellular matrix proteins. Cardiac fibrosis is directly linked to cardiac dysfunction and increased risk of arrhythmia. Despite its prevalence, there is a lack of efficacious therapies for inhibiting or reversing cardiac fibrosis, largely due to the complexity of the cell types and signaling pathways involved. Ongoing research has aimed to understand the mechanisms of cardiac fibrosis and develop new therapies for treating scar formation. Major approaches include preventing the formation of scar tissue and replacing fibrous tissue with functional cardiomyocytes. While targeting the renin-angiotensin-aldosterone system is currently used as the standard line of therapy for heart failure, there has been increased interest in inhibiting the transforming growth factor-β signaling pathway due its established role in cardiac fibrosis. Significant advances in cell transplantation therapy and biomaterials engineering have also demonstrated potential in regenerating the myocardium. Novel techniques, such as cellular direct reprogramming, and molecular targets, such as noncoding RNAs and epigenetic modifiers, are uncovering novel therapeutic options targeting fibrosis. This review provides an overview of current approaches and discuss future directions for treating cardiac fibrosis.
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10
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Vaspin Prevents Tumor Necrosis Factor-α-Induced Apoptosis in Cardiomyocytes by Promoting Autophagy. J Cardiovasc Pharmacol 2019; 77:257-267. [PMID: 29734265 DOI: 10.1097/fjc.0000000000000562] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Visceral adipose tissue-derived serine protease inhibitor (Vaspin) is an adipocytokine that has been shown to exert anti-inflammatory effects and inhibits apoptosis under diabetic conditions. This study was designed to investigate the impact of vaspin on autophagy in tumor necrosis factor (TNF)-α-induced injury in cardiomyocytes and its cardioprotective effects in the pathogenesis of diabetic cardiomyopathy (DCM). H9C2 cells were treated with TNF-α with or without vaspin in vitro. Tumor necrosis factor-α treatment inhibited autophagy and promoted apoptosis in H9C2 cells after stimulating for 24 hours. Pretreatment with vaspin significantly mitigated apoptosis induced by TNF-α partly because of augment effects of vaspin on autophagy as demonstrated by a higher ratio of LC3-II/LC3-I, higher expression of Beclin-1, and increased autophagosomes formation. Furthermore, the AKT agonist IGF-1 significantly reversed the effect of vaspin on autophagy. In vivo DCM model was also developed by treating rats with streptozotocin followed by intraperitoneal injection with vaspin. In DCM rats, upregulation of vaspin reversed cardiac dysfunction, as identified by increased left ventricular ejection fractions and fractional shortening levels, a higher Em/Am ratio, and lower levels of TNF-α, lactate dehydrogenase, creatine kinase, and creatine kinase-myocardial isoenzyme. In conclusion, vaspin attenuated the TNF-α-induced apoptosis by promoting autophagy probably through inhibiting the PI3K/AKT/mTOR pathway and further ameliorated the cardiac dysfunction in DCM rats.
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11
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Ali SS, Mohamed SFA, Rozalei NH, Boon YW, Zainalabidin S. Anti-fibrotic Actions of Roselle Extract in Rat Model of Myocardial Infarction. Cardiovasc Toxicol 2019; 19:72-81. [PMID: 30128816 DOI: 10.1007/s12012-018-9478-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Heart failure-associated morbidity and mortality is largely attributable to extensive and unregulated cardiac remodelling. Roselle (Hibiscus sabdariffa) calyces are enriched with natural polyphenols known for antioxidant and anti-hypertensive effects, yet its effects on early cardiac remodelling in post myocardial infarction (MI) setting are still unclear. Thus, the aim of this study was to investigate the actions of roselle extract on cardiac remodelling in rat model of MI. Male Wistar rats (200-300 g) were randomly allotted into three groups: Control, MI, and MI + Roselle. MI was induced with isoprenaline (ISO) (85 mg/kg, s.c) for two consecutive days followed by roselle treatment (100 mg/kg, orally) for 7 days. Isoprenaline administration showed changes in heart weight to body weight (HW/BW) ratio. MI was especially evident by the elevated cardiac injury marker, troponin-T, and histological observation. Upregulation of plasma levels and cardiac gene expression levels of inflammatory cytokines such as interleukin (IL)-6 and IL-10 was seen in MI rats. A relatively high percentage of fibrosis was observed in rat heart tissues with over-expression of collagen (Col)-1 and Col-3 genes following isoprenaline-induced MI. On top of that, cardiomyocyte areas were larger in heart tissues of MI rats with upregulation of atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP) gene expression, indicating cardiac hypertrophy. Interestingly, roselle supplementation attenuated elevation of plasma troponin-T, IL-6, IL10, and gene expression level of IL-10. Furthermore, reduction of cardiac fibrosis and hypertrophy were observed. In conclusion, roselle treatment was able to limit early cardiac remodelling in MI rat model by alleviating inflammation, fibrosis, and hypertrophy; hence, the potential application of roselle in early adjunctive treatment to prevent heart failure.
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MESH Headings
- Animals
- Atrial Natriuretic Factor/genetics
- Atrial Natriuretic Factor/metabolism
- Cardiovascular Agents/isolation & purification
- Cardiovascular Agents/pharmacology
- Collagen Type I/genetics
- Collagen Type I/metabolism
- Collagen Type III/genetics
- Collagen Type III/metabolism
- Disease Models, Animal
- Fibrosis
- Heart Ventricles/drug effects
- Heart Ventricles/metabolism
- Heart Ventricles/physiopathology
- Hibiscus/chemistry
- Hypertrophy, Left Ventricular/chemically induced
- Hypertrophy, Left Ventricular/metabolism
- Hypertrophy, Left Ventricular/physiopathology
- Hypertrophy, Left Ventricular/prevention & control
- Inflammation Mediators/blood
- Interleukin-10/blood
- Interleukin-10/genetics
- Interleukin-6/blood
- Interleukin-6/genetics
- Isoproterenol
- Male
- Myocardial Infarction/chemically induced
- Myocardial Infarction/drug therapy
- Myocardial Infarction/metabolism
- Myocardial Infarction/physiopathology
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/pathology
- Natriuretic Peptide, Brain/genetics
- Natriuretic Peptide, Brain/metabolism
- Rats, Wistar
- Troponin T/blood
- Ventricular Function, Left/drug effects
- Ventricular Remodeling/drug effects
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Affiliation(s)
- Shafreena Shaukat Ali
- Biomedical Science, School of Diagnostic Sciences & Applied Health, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300, Kuala Lumpur, Malaysia
| | - Siti Fatimah Azaharah Mohamed
- Biomedical Science, School of Diagnostic Sciences & Applied Health, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300, Kuala Lumpur, Malaysia
| | - Nur Hafiqah Rozalei
- Biomedical Science, School of Diagnostic Sciences & Applied Health, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300, Kuala Lumpur, Malaysia
| | - Yap Wei Boon
- Biomedical Science, School of Diagnostic Sciences & Applied Health, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300, Kuala Lumpur, Malaysia
| | - Satirah Zainalabidin
- Biomedical Science, School of Diagnostic Sciences & Applied Health, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300, Kuala Lumpur, Malaysia.
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12
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Bai T, Wang M, Cao M, Zhang J, Zhang K, Zhou P, Liu Z, Liu Y, Guo Z, Lu X. Functionalized Au@Ag-Au nanoparticles as an optical and SERS dual probe for lateral flow sensing. Anal Bioanal Chem 2018; 410:2291-2303. [PMID: 29445833 DOI: 10.1007/s00216-018-0850-z] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 12/05/2017] [Accepted: 01/03/2018] [Indexed: 01/29/2023]
Abstract
Lateral flow assay strips (LFASs) with Au nanoparticles (NPs) have been widely used as a probe for biomarkers in point-of-care testing; however, there still remain challenges in detection sensitivity and quantitative analysis. In this study, we developed a surface-enhanced Raman scattering (SERS)-based LFAS for quantitative analysis of a biomarker in the low concentration range. Moreover, apart from conventional Au NPs, three other types of citrate-capped Au-Ag bimetallic NPs: Au core with Ag shell NPs (Au@Ag NPs), rattle-like Au core in Ag-Au shell NPs (Au@Ag-Au NPs) and Ag-Au NPs were prepared and functionalized, and their solution-based SERS activities were comprehensively studied by experimental measurement and theoretical analysis. The results clearly indicated that the citrate-capped Au@Ag-Au NPs exhibited the highest SERS activity among the probes tested. Au@Ag-Au NPs were used as both optical and SERS probes in a SERS-based LFAS. In the presence of the analyte at high concentrations, a purple color appeared in the test zone. Highly sensitive and quantitative analysis was realized by measurement of SERS signals from the test lines. One of the most specific markers for cardiac injury, cardiac troponin I (cTnI), was chosen as the detection model. The detection limit of the SERS-based LFAS for cardiac troponin I was 0.09 ng/mL, lowered by nearly 50 times compared with visual results, and could be further lowered by optimization. These results demonstrated that the SERS-based LFAS using citrate-capped Au@Ag-Au NPs as probes can be a powerful tool for highly sensitive and quantitative detection of biomarkers. Graphical abstract A surface-enhanced Raman scattering (SERS)-based lateral flow assay strip using rattle-like Au core in Ag-Au shell (Au@Ag-Au) nanoparticles as probes was developed for quantitative analysis of a biomarker, with a detection limit nearly 50 times lower than that of visual assessment. C control line, T test line.
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Affiliation(s)
- Tingting Bai
- Department of Geriatrics, The Second Affiliated Hospital, Key Laboratory for Aging & Disease, Nanjing Medical University, Nanjing, Jiangsu, 210011, China
| | - Meng Wang
- School of Science, Nantong University, Nantong, Jiangsu, 226007, China
| | - Min Cao
- School of Science, Nantong University, Nantong, Jiangsu, 226007, China
| | - Juan Zhang
- Department of Geriatrics, The Second Affiliated Hospital, Key Laboratory for Aging & Disease, Nanjing Medical University, Nanjing, Jiangsu, 210011, China
| | - Kangzhen Zhang
- Department of Geriatrics, The Second Affiliated Hospital, Key Laboratory for Aging & Disease, Nanjing Medical University, Nanjing, Jiangsu, 210011, China
| | - Ping Zhou
- Department of Geriatrics, The Second Affiliated Hospital, Key Laboratory for Aging & Disease, Nanjing Medical University, Nanjing, Jiangsu, 210011, China
| | - Zhengxia Liu
- Department of Geriatrics, The Second Affiliated Hospital, Key Laboratory for Aging & Disease, Nanjing Medical University, Nanjing, Jiangsu, 210011, China
| | - Ying Liu
- Department of Geriatrics, The Second Affiliated Hospital, Key Laboratory for Aging & Disease, Nanjing Medical University, Nanjing, Jiangsu, 210011, China
| | - Zhirui Guo
- Department of Geriatrics, The Second Affiliated Hospital, Key Laboratory for Aging & Disease, Nanjing Medical University, Nanjing, Jiangsu, 210011, China.
| | - Xiang Lu
- Department of Geriatrics, The Second Affiliated Hospital, Key Laboratory for Aging & Disease, Nanjing Medical University, Nanjing, Jiangsu, 210011, China.
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13
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Aljakna A, Fracasso T, Sabatasso S. Molecular tissue changes in early myocardial ischemia: from pathophysiology to the identification of new diagnostic markers. Int J Legal Med 2018; 132:425-438. [DOI: 10.1007/s00414-017-1750-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 11/20/2017] [Indexed: 02/06/2023]
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14
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DuSablon A, Parks J, Whitehurst K, Estes H, Chase R, Vlahos E, Sharma U, Wert D, Virag J. EphrinA1-Fc attenuates myocardial ischemia/reperfusion injury in mice. PLoS One 2017; 12:e0189307. [PMID: 29236774 PMCID: PMC5728502 DOI: 10.1371/journal.pone.0189307] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 11/22/2017] [Indexed: 12/19/2022] Open
Abstract
EphrinA1, a membrane-bound receptor tyrosine kinase ligand expressed in healthy cardiomyocytes, is lost in injured cells following myocardial infarction. Previously, we have reported that a single intramyocardial injection of chimeric ephrinA1-Fc at the time of ischemia reduced injury in the nonreperfused myocardium by 50% at 4 days post-MI by reducing apoptosis and inflammatory cell infiltration. In a clinically relevant model of acute ischemia (30min)/reperfusion (24hr or 4 days) injury, we now demonstrate that ephrinA1-Fc reduces infarct size by 46% and completely preserves cardiac function (ejection fraction, fractional shortening, and chamber dimensions) in the short-term (24hrs post-MI) as well as long-term (4 days). At 24 hours post-MI, diminished serum inflammatory cell chemoattractants in ephrinA1-Fc-treated mice reduces recruitment of neutrophils and leukocytes into the myocardium. Differences in relative expression levels of EphA-Rs are described in the context of their putative role in mediating cardioprotection. Validation by Western blotting of selected targets from mass spectrometry analyses of pooled samples of left ventricular tissue homogenates from mice that underwent 30min ischemia and 24hr of reperfusion (I/R) indicates that ephrinA1-Fc administration alters several regulators of signaling pathways that attenuate apoptosis, promote autophagy, and shift from FA metabolism in favor of increased glycolysis to optimize anaerobic ATP production. Taken together, reduced injury is due a combination of adaptive metabolic reprogramming, improved cell survival, and decreased inflammatory cell recruitment, suggesting that ephrinA1-Fc enhances the capacity of the heart to withstand an ischemic insult.
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Affiliation(s)
- Augustin DuSablon
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, North Carolina, United States of America
| | - Justin Parks
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, North Carolina, United States of America
| | - K’Shylah Whitehurst
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, North Carolina, United States of America
| | - Heather Estes
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, North Carolina, United States of America
| | - Robert Chase
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, North Carolina, United States of America
| | - Eleftherios Vlahos
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, North Carolina, United States of America
| | - Uma Sharma
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, North Carolina, United States of America
| | - David Wert
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, North Carolina, United States of America
| | - Jitka Virag
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, North Carolina, United States of America
- * E-mail:
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15
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Ahmed SM, Abdelrahman SA, Salama AE. Efficacy of gold nanoparticles against isoproterenol induced acute myocardial infarction in adult male albino rats. Ultrastruct Pathol 2017; 41:168-185. [PMID: 28277146 DOI: 10.1080/01913123.2017.1281367] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
This study was undertaken to investigate the role of gold nanoparticles (GNPs) of 50 nm diameter on isoproterenol (ISO) induced acute myocardial infarction in adult male albino rats. Forty five adult Wistar male albino rats were equally divided into three groups. Control (group I) was further subdivided into three subgroups. In group II, the rats received ISO subcutaneously at a dose of 100 mg/kg for three days. In group III, rats received ISO as group II and then GNPs (400 μg/kg/day) intravenously for 14 consecutive days. Echocardiography was performed. Left ventricular specimens were prepared for H&E, van Gieson staining, immunohistochemical analysis for (eNOs and Bcl-2), and Electron microscope examination. Energy dispersive X-ray microanalysis was also performed. Cardiac markers such as creatine Kinase-MB (CK-MB), alanine aminotransferase (ALT), aspartate aminotransferase (AST), and cardiac troponin T (cTnT) were measured. Group II revealed cardiomyocytes with deeply stained acidophilic cytoplasm, small dark nuclei, intracellular vacuolations, wide intercellular spaces, and extravasated red blood cells. Increased collagen fibers were observed. Electron microscope examination showed cardiomyocyte with small and irregular outlined nuclei, mitochondria with irregular cristae and others with ruptured mitochondrial membrane, abnormal alignment of myofibrils, dilated cisternae of smooth endoplasmic reticulum, and disorganized intercalated discs. Group III showed that most cardiomyocytes preserved the normal architecture. Increased expression of eNOs immunoreaction and decreased Bcl-2 immunoreaction were detected in group II as compared to the control and GNP-treated groups. These findings suggested that GNPs of 50 nm diameter improved myocardial injury after ISO-induced myocardial infarction in rats. ABBREVIATIONS Myocardial infarction (MI), Isoproterenol (ISO), Nitric oxide (NO), Neuronal NOS (nNOs), Endothelial NOs (eNOs), Gold nanoparticle (GNPs), Diamiobenzidine (DAB), Serum Creatine Kinase-MB (CK-MB), Alanine aminotransferase (ALT), Cardiac troponin T (cTnT), Electrochemiluminiscence (ECLIA), Cardiomyocytes (CMC), Peroxisomal proliferator activated receptor (PPARs), Reactive oxygen species (ROS).
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Affiliation(s)
- Samah M Ahmed
- a Histology and Cell Biology Department, Faculty of Human Medicine , Zagazig University , Zagazig , Egypt
| | - Shaimaa Ali Abdelrahman
- a Histology and Cell Biology Department, Faculty of Human Medicine , Zagazig University , Zagazig , Egypt
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16
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Fan Y, Yang YL, Yeh CC, Mann MJ. Spacial and Temporal Patterns of Gene Expression After Cardiac MEK1 Gene Transfer Improve Post-Infarction Remodeling Without Inducing Global Hypertrophy. J Cell Biochem 2016; 118:775-784. [PMID: 27639174 DOI: 10.1002/jcb.25743] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 09/16/2016] [Indexed: 11/11/2022]
Abstract
Alteration of mitogen activated protein (MAP) kinase signaling in transgenic mice can ameliorate post-myocardial infarction (MI) remodeling. However, pre-existing changes in transgenic hearts and clinically unrealistic transgene expression likely affect the response to injury; it is unknown whether clinically relevant induction of transgene expression in an otherwise normal heart can yield similar benefits. Constitutively active MEK1 (aMEK1) or LacZ adeno-associated virus 9 (AAV9) vectors were injected into the left ventricular (LV) chambers of mice either just before or after coronary ligation. Hearts were evaluated via Western blot, quantitative polymerase chain reaction, histology, and echocardiography. AAV9-mediated aMEK1 delivery altered ERK1/2 expression/activation as in transgenic mice. Transgene expression was not immediately detectable but plateaued at 17 days, and therefore did not likely impact acute ischemia as it would in transgenics. With AAV9-aMEK1 injection just prior to MI, robust expression in the infarct border zone during post-MI remodeling increased border zone wall thickness and reduced infarct size versus controls at 4 weeks, but did not induce global hypertrophy. Significant improvements in local and global LV function were observed, as were trends toward a preservation of LV volume. Delivery after ligation significantly lowered transgene expression in the infarct border zone and did not yield structural or functional benefits. The primary benefits observed in transgenic mice, ameliorated remodeling, and reduced chronic infarct size, were achievable via clinically relevant gene transfer of aMEK1, supporting ongoing translational efforts. Important differences, however, were observed, and consideration must be given to the timing and distribution of transgene delivery and expression. J. Cell. Biochem. 118: 775-784, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Yanying Fan
- Translational Research Laboratory, Division of Cardiothoracic Surgery, University of California San Francisco, San Francisco, California
| | - Yi-Lin Yang
- Translational Research Laboratory, Division of Cardiothoracic Surgery, University of California San Francisco, San Francisco, California
| | - Che-Chung Yeh
- Translational Research Laboratory, Division of Cardiothoracic Surgery, University of California San Francisco, San Francisco, California
| | - Michael J Mann
- Translational Research Laboratory, Division of Cardiothoracic Surgery, University of California San Francisco, San Francisco, California
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17
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Zarrouk-Mahjoub S, Zaghdoudi M, Amira Z, Chebi H, Khabouchi N, Finsterer J, Mechmeche R, Ghazouani E. Pro- and anti-inflammatory cytokines in post-infarction left ventricular remodeling. Int J Cardiol 2016; 221:632-6. [PMID: 27423081 DOI: 10.1016/j.ijcard.2016.07.073] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 07/04/2016] [Indexed: 11/16/2022]
Abstract
OBJECTIVES Acute myocardial infarction (MI) leads to molecular, structural, geometric and functional changes in the heart during a process known as ventricular remodeling. Myocardial infarction is followed by an inflammatory response in which pro- and anti-inflammatory cytokines play a crucial role, particularly in left ventricular remodeling. This study aimed at evaluating serum concentrations of interleukin-8 (IL8), tumor-necrosis-factor-alpha (TNFα) and interleukin-10 (IL10), pro- and anti-inflammatory cytokines, and at correlating them with left ventricular remodeling as assessed by echocardiographic parameters. METHODS In a case-control study 30 MI patients were compared with 30 healthy controls. Serum concentrations of IL8, TNFα and IL10 were measured on day 2 and day 30 post-MI by chemiluminescence immunoassay and correlated with echocardiographic parameters. RESULTS There was an increase of IL8, and TNFα together with a decrease of IL10 at both time points. IL8 was negatively correlated with the left ventricular end-diastolic diameter (LVEDD) and positively with left ventricular systolic volume. IL10 was negatively correlated with LVEDD and left atrial volume 30days post-MI. CONCLUSION The increase of pro-inflammatory cytokines TNFα and IL8 was accompanied by decreased anti-inflammatory IL10. This imbalance between pro- and anti-inflammatory cytokines might contribute to the progression of left ventricular remodeling and may lead to heart failure.
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Affiliation(s)
| | - M Zaghdoudi
- Genomics Platform, Pasteur Institute of Tunis, Tunis, Tunisia
| | - Z Amira
- Hopital la Rabta de Tunis, Tunis, Tunisia
| | - H Chebi
- Genomics Platform, Pasteur Institute of Tunis, Tunis, Tunisia
| | - N Khabouchi
- Genomics Platform, Pasteur Institute of Tunis, Tunis, Tunisia
| | - J Finsterer
- Krankenanstalt Rudolfstiftung, Vienna, Austria.
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18
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Sahraoui A, Dewachter C, de Medina G, Naeije R, Aouichat Bouguerra S, Dewachter L. Myocardial Structural and Biological Anomalies Induced by High Fat Diet in Psammomys obesus Gerbils. PLoS One 2016; 11:e0148117. [PMID: 26840416 PMCID: PMC4740502 DOI: 10.1371/journal.pone.0148117] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 01/13/2016] [Indexed: 12/11/2022] Open
Abstract
Background Psammomys obesus gerbils are particularly prone to develop diabetes and obesity after brief period of abundant food intake. A hypercaloric high fat diet has been shown to affect cardiac function. Here, we sought to determine whether a short period of high fat feeding might alter myocardial structure and expression of calcium handling proteins in this particular strain of gerbils. Methods Twenty Psammomys obesus gerbils were randomly assigned to receive a normal plant diet (controls) or a high fat diet. At baseline and 16-week later, body weight, plasma biochemical parameters (including lipid and carbohydrate levels) were evaluated. Myocardial samples were collected for pathobiological evaluation. Results Sixteen-week high fat dieting resulted in body weight gain and hyperlipidemia, while levels of carbohydrates remained unchanged. At myocardial level, high fat diet induced structural disorganization, including cardiomyocyte hypertrophy, lipid accumulation, interstitial and perivascular fibrosis and increased number of infiltrating neutrophils. Myocardial expressions of pro-apoptotic Bax-to-Bcl-2 ratio, pro-inflammatory cytokines [interleukin (IL)-1β and tumor necrosis factor (TNF)-α], intercellular (ICAM1) and vascular adhesion molecules (VCAM1) increased, while gene encoding cardiac muscle protein, the alpha myosin heavy polypeptide (MYH6), was downregulated. Myocardial expressions of sarco(endo)plasmic calcium-ATPase (SERCA2) and voltage-dependent calcium channel (Cacna1c) decreased, while protein kinase A (PKA) and calcium-calmodulin-dependent protein kinase (CaMK2D) expressions increased. Myocardial expressions of ryanodine receptor, phospholamban and sodium/calcium exchanger (Slc8a1) did not change. Conclusions We conclude that a relative short period of high fat diet in Psammomys obesus results in severe alterations of cardiac structure, activation of inflammatory and apoptotic processes, and altered expression of calcium-cycling determinants.
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Affiliation(s)
- Abdelhamid Sahraoui
- Laboratory of Physiology and Pharmacology, Faculty of Medicine, Université Libre de Bruxelles, Brussels, Belgium
- Team of Cellular and Molecular Physiopathology, Faculty of Biological Sciences, Houari Boumediene University of Sciences and Technology, El Alia, Algiers, Algeria
| | - Céline Dewachter
- Laboratory of Physiology and Pharmacology, Faculty of Medicine, Université Libre de Bruxelles, Brussels, Belgium
| | - Geoffrey de Medina
- Laboratory of Physiology and Pharmacology, Faculty of Medicine, Université Libre de Bruxelles, Brussels, Belgium
| | - Robert Naeije
- Laboratory of Physiology and Pharmacology, Faculty of Medicine, Université Libre de Bruxelles, Brussels, Belgium
| | - Souhila Aouichat Bouguerra
- Team of Cellular and Molecular Physiopathology, Faculty of Biological Sciences, Houari Boumediene University of Sciences and Technology, El Alia, Algiers, Algeria
| | - Laurence Dewachter
- Laboratory of Physiology and Pharmacology, Faculty of Medicine, Université Libre de Bruxelles, Brussels, Belgium
- * E-mail:
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19
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Li G, Qian W, Zhao C. Analyzing the anti-ischemia–reperfusion injury effects of ginsenoside Rb1 mediated through the inhibition of p38α MAPK. Can J Physiol Pharmacol 2016; 94:97-103. [PMID: 26550918 DOI: 10.1139/cjpp-2014-0164] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Recent studies have demonstrated that ginsenoside Rb1 protects the myocardium from ischemia–reperfusion (I/R) injury. However, the precise mechanisms for this protection have not been determined. This study aimed to determine whether the attenuation of I/R-induced myocardial injury by ginsenoside Rb1 (GS Rb1) is due to inhibition of p38α mitogen-activated protein kinase (MAPK). Sprague–Dawley rats were distributed among 6 treatment groups: sham group; I/R group; p38 MAPK inhibitor SB203580 group (SB + I/R); GS Rb1 group (GS + I/R); p38 MAPK agonist anisomycin group (Ani + I/R); and the GS Rb1 + Ani group (GS + Ani + I/R). All of the anaesthetized rats, except those in the sham group, underwent an open-chest procedure that involved 30 min of myocardial ischemia followed by 2 h of reperfusion. Myocardial infarction size (MIS), caspase-3 activity, and levels of the cytokine tumor necrosis factor alpha (TNF-α) in the myocardium were monitored. The expressions of p38α MAPK, caspase-3, and TNF-α in the myocardium were assayed. GS Rb1 reduced MIS and attenuated caspase-3 activity and the levels of TNF-α in the myocardium. Protein expression of total p38α MAPK was not significantly altered. In the Ani + I/R and I/R groups, the levels of phospho-p38α MAPK were significantly increased compared with the sham group, and these increased levels were reduced with GS Rb1. Hemodynamic parameters were not significantly different between the GS + I/R and SB + I/R groups. GS Rb1 exerts an anti-apoptotic effect that protects against I/R injury by inhibiting p38α MAPK phosphorylation, suggesting that GS Rb1-mediated protection requires the inhibition of p38α MAPK.
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Affiliation(s)
- Gonghao Li
- Institute of Cardiovascular Disease Research, Xuzhou Medical College, Xuzhou, Jiangsu, China
| | - Wenhao Qian
- Department of Cardiology, Research Institute of Cardiovascular Disease, the Affiliated Hospital of Xuzhou Medical College, 84 West Huaihai Road, Xuzhou, Jiangsu 221002, China
| | - Changyun Zhao
- Institute of Cardiovascular Disease Research, Xuzhou Medical College, Xuzhou, Jiangsu, China
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20
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Persic V, Ruzic A, Miletic B, Samsa DT, Rakic M, Raljevic D, Pejcinovic VP, Eminovic S, Zaputovic L, Laskarin G. Granulysin Expression in Lymphocytes that Populate the Peripheral Blood and the Myocardium after an Acute Coronary Event. Scand J Immunol 2015; 75:231-42. [PMID: 21967803 DOI: 10.1111/j.1365-3083.2011.02646.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
We aimed to analyse granulysin (GNLY)-mediated cytotoxicity in the peripheral blood of patients with non-ST-segment elevation myocardial infarction (NSTEMI) treated with anti-ischaemic drug therapy. Thirty-nine NSTEMI patients with a median age of 70 years and 28 age-matched healthy subjects were enrolled in this study. On day 7 after MI, the number of GNLY(+) lymphocytes in the peripheral blood increased approximately six-fold of that in the healthy subjects, measured by flow cytometry. On day 14, the number of GNLY(+) cells significantly decreased in T, NKT, and both CD56(+dim) and CD56(+bright) NK subsets. GNLY(+) CD3(+) and GNLY(+) CD56(+) cells infiltrated central zone of myocardial infarction (MI). In persons who died in the first week after MI, GNLY(+) cells were found within accumulation of apoptotic leucocytes and reached the apoptotic cardiomyocytes in border MI zones probably due to the influence of interleukin-15 in peri-necrotic cardiomyocytes, as it is was shown by immunohistology. By day 28, the percentage of GNLY(+) lymphocytes in peripheral blood returned to the levels similar to that of the healthy subjects. Anti-GNLY mAb decreased apoptosis of K562 targets using peripheral blood NK cells from days 7 and 28 after MI, while in assays using cells from days 1 and 21, both anti-GNLY and anti-perforin mAbs were required to significantly decrease apoptosis. Using NK cells from day 14, K562 apoptosis was nearly absent. In conclusion, it seems that GNLY(+) lymphocytes, probably attracted by IL-15, not only participate partially in myocardial cell apoptosis, but also hasten resolution of cardiac leucocyte infiltration in patients with NSTEMI.
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Affiliation(s)
- V Persic
- Division of Cardiology, Hospital for Medical Rehabilitation of the Hearth and Lung Diseases and Rheumatism "Thalassotherapija" Opatija, Opatija, CroatiaDepartment of Medical Rehabilitation, Medical Faculty, University of Rijeka, Rijeka, CroatiaDepartment of Pathology, Medical Faculty, University of Rijeka, Rijeka, CroatiaDivision of Cardiology Clinical Hospital Center Rijeka, Rijeka, CroatiaDepartment of Internal Medicine, Medical Faculty, University of Rijeka, Rijeka, CroatiaDepartment of Physiology and Immunology, Medical Faculty, University of Rijeka, Rijeka, Croatia
| | - A Ruzic
- Division of Cardiology, Hospital for Medical Rehabilitation of the Hearth and Lung Diseases and Rheumatism "Thalassotherapija" Opatija, Opatija, CroatiaDepartment of Medical Rehabilitation, Medical Faculty, University of Rijeka, Rijeka, CroatiaDepartment of Pathology, Medical Faculty, University of Rijeka, Rijeka, CroatiaDivision of Cardiology Clinical Hospital Center Rijeka, Rijeka, CroatiaDepartment of Internal Medicine, Medical Faculty, University of Rijeka, Rijeka, CroatiaDepartment of Physiology and Immunology, Medical Faculty, University of Rijeka, Rijeka, Croatia
| | - B Miletic
- Division of Cardiology, Hospital for Medical Rehabilitation of the Hearth and Lung Diseases and Rheumatism "Thalassotherapija" Opatija, Opatija, CroatiaDepartment of Medical Rehabilitation, Medical Faculty, University of Rijeka, Rijeka, CroatiaDepartment of Pathology, Medical Faculty, University of Rijeka, Rijeka, CroatiaDivision of Cardiology Clinical Hospital Center Rijeka, Rijeka, CroatiaDepartment of Internal Medicine, Medical Faculty, University of Rijeka, Rijeka, CroatiaDepartment of Physiology and Immunology, Medical Faculty, University of Rijeka, Rijeka, Croatia
| | - D Travica Samsa
- Division of Cardiology, Hospital for Medical Rehabilitation of the Hearth and Lung Diseases and Rheumatism "Thalassotherapija" Opatija, Opatija, CroatiaDepartment of Medical Rehabilitation, Medical Faculty, University of Rijeka, Rijeka, CroatiaDepartment of Pathology, Medical Faculty, University of Rijeka, Rijeka, CroatiaDivision of Cardiology Clinical Hospital Center Rijeka, Rijeka, CroatiaDepartment of Internal Medicine, Medical Faculty, University of Rijeka, Rijeka, CroatiaDepartment of Physiology and Immunology, Medical Faculty, University of Rijeka, Rijeka, Croatia
| | - M Rakic
- Division of Cardiology, Hospital for Medical Rehabilitation of the Hearth and Lung Diseases and Rheumatism "Thalassotherapija" Opatija, Opatija, CroatiaDepartment of Medical Rehabilitation, Medical Faculty, University of Rijeka, Rijeka, CroatiaDepartment of Pathology, Medical Faculty, University of Rijeka, Rijeka, CroatiaDivision of Cardiology Clinical Hospital Center Rijeka, Rijeka, CroatiaDepartment of Internal Medicine, Medical Faculty, University of Rijeka, Rijeka, CroatiaDepartment of Physiology and Immunology, Medical Faculty, University of Rijeka, Rijeka, Croatia
| | - D Raljevic
- Division of Cardiology, Hospital for Medical Rehabilitation of the Hearth and Lung Diseases and Rheumatism "Thalassotherapija" Opatija, Opatija, CroatiaDepartment of Medical Rehabilitation, Medical Faculty, University of Rijeka, Rijeka, CroatiaDepartment of Pathology, Medical Faculty, University of Rijeka, Rijeka, CroatiaDivision of Cardiology Clinical Hospital Center Rijeka, Rijeka, CroatiaDepartment of Internal Medicine, Medical Faculty, University of Rijeka, Rijeka, CroatiaDepartment of Physiology and Immunology, Medical Faculty, University of Rijeka, Rijeka, Croatia
| | - V Pehar Pejcinovic
- Division of Cardiology, Hospital for Medical Rehabilitation of the Hearth and Lung Diseases and Rheumatism "Thalassotherapija" Opatija, Opatija, CroatiaDepartment of Medical Rehabilitation, Medical Faculty, University of Rijeka, Rijeka, CroatiaDepartment of Pathology, Medical Faculty, University of Rijeka, Rijeka, CroatiaDivision of Cardiology Clinical Hospital Center Rijeka, Rijeka, CroatiaDepartment of Internal Medicine, Medical Faculty, University of Rijeka, Rijeka, CroatiaDepartment of Physiology and Immunology, Medical Faculty, University of Rijeka, Rijeka, Croatia
| | - S Eminovic
- Division of Cardiology, Hospital for Medical Rehabilitation of the Hearth and Lung Diseases and Rheumatism "Thalassotherapija" Opatija, Opatija, CroatiaDepartment of Medical Rehabilitation, Medical Faculty, University of Rijeka, Rijeka, CroatiaDepartment of Pathology, Medical Faculty, University of Rijeka, Rijeka, CroatiaDivision of Cardiology Clinical Hospital Center Rijeka, Rijeka, CroatiaDepartment of Internal Medicine, Medical Faculty, University of Rijeka, Rijeka, CroatiaDepartment of Physiology and Immunology, Medical Faculty, University of Rijeka, Rijeka, Croatia
| | - L Zaputovic
- Division of Cardiology, Hospital for Medical Rehabilitation of the Hearth and Lung Diseases and Rheumatism "Thalassotherapija" Opatija, Opatija, CroatiaDepartment of Medical Rehabilitation, Medical Faculty, University of Rijeka, Rijeka, CroatiaDepartment of Pathology, Medical Faculty, University of Rijeka, Rijeka, CroatiaDivision of Cardiology Clinical Hospital Center Rijeka, Rijeka, CroatiaDepartment of Internal Medicine, Medical Faculty, University of Rijeka, Rijeka, CroatiaDepartment of Physiology and Immunology, Medical Faculty, University of Rijeka, Rijeka, Croatia
| | - G Laskarin
- Division of Cardiology, Hospital for Medical Rehabilitation of the Hearth and Lung Diseases and Rheumatism "Thalassotherapija" Opatija, Opatija, CroatiaDepartment of Medical Rehabilitation, Medical Faculty, University of Rijeka, Rijeka, CroatiaDepartment of Pathology, Medical Faculty, University of Rijeka, Rijeka, CroatiaDivision of Cardiology Clinical Hospital Center Rijeka, Rijeka, CroatiaDepartment of Internal Medicine, Medical Faculty, University of Rijeka, Rijeka, CroatiaDepartment of Physiology and Immunology, Medical Faculty, University of Rijeka, Rijeka, Croatia
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21
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Korneva JS, Dorosevich AE. [The method for the postmortem verification of ventricular fibrillation as a mechanism of death from myocardial infarction and post-infarction cardiosclerosis]. Sud Med Ekspert 2015; 58:49-52. [PMID: 25874320 DOI: 10.17116/sudmed201558149-52] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The objective of the present study was to develop the objective method for the verification of death from ventricular fibrillation (VF) as a complication of myocardial infarction and post-infarction cardiosclerosis (PICS). A total of 20 cases of death during different periods after myocardial infarction and PICS were available for the analysis in which EGC-confirmed ventricular fibrillation was the immediate cause of the fatal outcome. The control group was comprised of 29 cases of death from other complications. The special emphasis was laid on the investigation of the affected region, the boundary areas, and intact zones of the heart. The size of cardiac cell populations surrounding capillaries was determined. The statistical treatment of the results of the study revealed the difference in the cellular infiltrate composition between the groups of patients who had died from ventricular fibrillation and other causes. The differences were largely reduced to the number of lymphocytes, neutrophils, and leukocytes. The data thus obtained provided a basis for the development of the method for the objective postmortem verification of the complication being considered.
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Affiliation(s)
- Ju S Korneva
- Kafedra patologicheskoj anatomii Smolenskoj gosudarstvennoj meditsinskoj akademii, Smolensk, Rossija, 214000
| | - A E Dorosevich
- Kafedra patologicheskoj anatomii Smolenskoj gosudarstvennoj meditsinskoj akademii, Smolensk, Rossija, 214000
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22
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Chang MY, Chang CH, Chen CH, Cheng B, Lin YD, Luo CY, Wu HL, Yang YJ, Chen JH, Hsieh PCH. The time window for therapy with peptide nanofibers combined with autologous bone marrow cells in pigs after acute myocardial infarction. PLoS One 2015; 10:e0115430. [PMID: 25757076 PMCID: PMC4355625 DOI: 10.1371/journal.pone.0115430] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2014] [Accepted: 11/23/2014] [Indexed: 01/28/2023] Open
Abstract
Background We previously showed that injection of peptide nanofibers (NF) combined with autologous bone marrow mononuclear cells (MNC) immediately after coronary artery ligation improves cardiac performance in pigs. To evaluate the clinical feasibility, this study was performed to determine the therapeutic time window for NF/MNC therapy in acute myocardial infarction (MI). Methods and Results A total of 45 adult minipigs were randomly grouped into 7 groups: sham or MI plus treatment with NS (normal saline), or NF or MNC alone at 1 day (1D) post-MI, or NF/MNC at 1, 4, or 7 days post-MI (N≥6). Cardiac function was assessed by echocardiography and ventricular catheterization. Compared with the NS control, pigs treated with NF/MNC at 1 day post-MI (NF/MC-1D) had the greatest improvement in left ventricle ejection fraction (LVEF; 55.1±1.6%; P<0.01 vs. NS) 2 months after MI. In contrast, pigs treated with either NF/MNC-4D or NF/MNC-7D showed 48.9±0.8% (P<0.05 vs. NS) and 43.5±2.3% (n.s. vs. NS) improvements, respectively. The +dP/dt and -dP/dt, infarct size and interstitial collagen content were also improved in the NF/MNC-1D and -4D groups but not in the -7D group. Mechanistically, MNC quality and the states of systemic inflammation and damaged heart tissue influence the therapeutic efficiency of NF/MNC therapy, as revealed by another independent study using 16 pigs. Conclusions Injection of NF/MNC at 1 or 4 days, but not at 7 days post-MI, improves cardiac performance and prevents ventricular remodeling, confirming the importance of early intervention when using this therapy for acute MI.
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Affiliation(s)
- Ming-Yao Chang
- Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Chih-Han Chang
- Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Chien-Hsi Chen
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Bill Cheng
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Yi-Dong Lin
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Chwan-Yau Luo
- Department of Surgery, National Cheng Kung University & Hospital, Tainan, Taiwan
| | - Hua-Lin Wu
- Department of Biochemistry and Molecular Biology, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Jen Yang
- Department of Surgery, National Cheng Kung University & Hospital, Tainan, Taiwan
| | - Jyh-Hong Chen
- Department of Internal Medicine, National Cheng Kung University & Hospital, Tainan, Taiwan
| | - Patrick C. H. Hsieh
- Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
- Department of Surgery, National Cheng Kung University & Hospital, Tainan, Taiwan
- * E-mail:
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23
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Yeung HM, Hung MW, Lau CF, Fung ML. Cardioprotective effects of melatonin against myocardial injuries induced by chronic intermittent hypoxia in rats. J Pineal Res 2015; 58:12-25. [PMID: 25369321 DOI: 10.1111/jpi.12190] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Accepted: 10/30/2014] [Indexed: 02/06/2023]
Abstract
Obstructive sleep apnea (OSA) associated with chronic intermittent hypoxia (CIH) increases the morbidity and mortality of ischemic heart disease in patients. Yet, there is a paucity of preventive measures targeting the pathogenesis of CIH-induced myocardial injury. We examined the cardioprotective effect of melatonin against the inflammation, fibrosis and the deteriorated sarcoplasmic reticulum (SR) Ca(2+) homeostasis, and ischemia/reperfusion (I/R)-induced injury exacerbated by CIH. Adult male Sprague Dawley rats that had received a daily injection of melatonin (10 mg/kg) or vehicle were exposed to CIH treatment mimicking a severe OSA condition for 4 wk. Systolic pressure, heart weights, and malondialdehyde were significantly increased in hypoxic rats but not in the melatonin-treated group, when compared with the normoxic control. Levels of the expression of inflammatory cytokines (TNF-α, IL-6, and COX-2) and fibrotic markers (PC1 and TGF-β) were significantly elevated in the hypoxic group but were normalized by melatonin. Additionally, infarct size of isolated hearts with regional I/R was substantial in the hypoxic group treated with vehicle but not in the melatonin-treated group. Moreover, melatonin treatment mitigated the SR-Ca(2+) homeostasis in the cardiomyocyte during I/R with (i) Ca(2+) overloading, (ii) decreased SR-Ca(2+) content, (iii) lowered expression and activity of Ca(2+) -handling proteins (SERCA2a and NCX1),and (iv) decreased expressions of CAMKII and phosphorylated eNOS(ser1177). Furthermore, melatonin ameliorated the level of expression of antioxidant enzymes (CAT and MnSOD) and NADPH oxidase (p22 and NOX2). Results support a prophylactic usage of melatonin in OSA patients, which protects against CIH-induced myocardial inflammation and fibrosis with impaired SR-Ca(2+) handling and exacerbated I/R injury.
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Affiliation(s)
- Hang-Mee Yeung
- Department of Physiology, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
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24
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Shivshankar P, Halade GV, Calhoun C, Escobar GP, Mehr AJ, Jimenez F, Martinez C, Bhatnagar H, Mjaatvedt CH, Lindsey ML, Le Saux CJ. Caveolin-1 deletion exacerbates cardiac interstitial fibrosis by promoting M2 macrophage activation in mice after myocardial infarction. J Mol Cell Cardiol 2014; 76:84-93. [PMID: 25128086 DOI: 10.1016/j.yjmcc.2014.07.020] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2014] [Revised: 07/29/2014] [Accepted: 07/31/2014] [Indexed: 02/08/2023]
Abstract
Adverse remodeling following myocardial infarction (MI) leading to heart failure is driven by an imbalanced resolution of inflammation. The macrophage cell is an important control of post-MI inflammation, as macrophage subtypes secrete mediators to either promote inflammation and extend injury (M1 phenotype) or suppress inflammation and promote scar formation (M2 phenotype). We have previously shown that the absence of caveolin-1 (Cav1), a membrane scaffolding protein, is associated with adverse cardiac remodeling in mice, but the mechanisms responsible remain to be elucidated. We explore here the role of Cav1 in the activation of macrophages using wild type C57BL6/J (WT) and Cav1(tm1Mls/J) (Cav1(-/-)) mice. By echocardiography, cardiac function was comparable between WT and Cav1(-/-) mice at 3days post-MI. In the absence of Cav1, there were a surprisingly higher percentage of M2 macrophages (arginase-1 positive) detected in the infarcted zone. Conversely, restoring Cav1 function after MI in WT mice by adding back the Cav1 scaffolding domain reduced the M2 activation profile. Further, adoptive transfer of Cav1 null macrophages into WT mice on d3 post-MI exacerbated adverse cardiac remodeling at d14 post-MI. In vitro studies revealed that Cav1 null macrophages had a more pronounced M2 profile activation in response to IL-4 stimulation. In conclusion, Cav1 deletion promotes an array of maladaptive repair processes after MI, including increased TGF-β signaling, increased M2 macrophage infiltration and dysregulation of the M1/M2 balance. Our data also suggest that cardiac remodeling can be improved by therapeutic intervention regulating Cav1 function during the inflammatory response phase.
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Affiliation(s)
- Pooja Shivshankar
- Division of Cardiology, Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Ganesh V Halade
- Division of Cardiology, Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Cheresa Calhoun
- Division of Cardiology, Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Gladys P Escobar
- Division of Cardiology, Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Ali J Mehr
- Division of Cardiology, Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Fabio Jimenez
- Division of Cardiology, Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Cindy Martinez
- Division of Cardiology, Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Harshita Bhatnagar
- Division of Cardiology, Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Corey H Mjaatvedt
- Department of Regenerative Medicine & Cell Biology, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Merry L Lindsey
- Division of Cardiology, Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Claude Jourdan Le Saux
- Division of Cardiology, Department of Medicine, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA.
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Wang X, Li Q, Hu Q, Suntharalingam P, From AHL, Zhang J. Intra-myocardial injection of both growth factors and heart derived Sca-1+/CD31- cells attenuates post-MI LV remodeling more than does cell transplantation alone: neither intervention enhances functionally significant cardiomyocyte regeneration. PLoS One 2014; 9:e95247. [PMID: 24919180 PMCID: PMC4053321 DOI: 10.1371/journal.pone.0095247] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Accepted: 03/24/2014] [Indexed: 01/24/2023] Open
Abstract
Insulin-like growth factor 1 (IGF-1) and hepatocyte growth factor (HGF) are two potent cell survival and regenerative factors in response to myocardial injury (MI). We hypothesized that simultaneous delivery of IGF+HGF combined with Sca-1+/CD31− cells would improve the outcome of transplantation therapy in response to the altered hostile microenvironment post MI. One million adenovirus nuclear LacZ-labeled Sca-1+/CD31− cells were injected into the peri-infarction area after left anterior descending coronary artery (LAD) ligation in mice. Recombinant mouse IGF-1+HGF was added to the cell suspension prior to the injection. The left ventricular (LV) function was assessed by echocardiography 4 weeks after the transplantation. The cell engraftment, differentiation and cardiomyocyte regeneration were evaluated by histological analysis. Sca-1+/CD31− cells formed viable grafts and improved LV ejection fraction (EF) (Control, 54.5+/−2.4; MI, 17.6+/−3.1; Cell, 28.2+/−4.2, n = 9, P<0.01). IGF+HGF significantly enhanced the benefits of cell transplantation as evidenced by increased EF (38.8+/−2.2; n = 9, P<0.01) and attenuated adverse structural remodeling. Furthermore, IGF+HGF supplementation increased the cell engraftment rate, promoted the transplanted cell survival, enhanced angiogenesis, and minimally stimulated endogenous cardiomyocyte regeneration in vivo. The in vitro experiments showed that IGF+HGF treatment stimulated Sca-1+/CD31− cell proliferation and inhibited serum free medium induced apoptosis. Supperarray profiling of Sca-1+/CD31− cells revealed that Sca-1+/CD31− cells highly expressed various trophic factor mRNAs and IGF+HGF treatment altered the mRNAs expression patterns of these cells. These data indicate that IGF-1+HGF could serve as an adjuvant to cell transplantation for myocardial repair by stimulating donor cell and endogenous cardiac stem cell survival, regeneration and promoting angiogenesis.
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Affiliation(s)
- Xiaohong Wang
- Cardiovascular Division, Department of Medicine, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
- * E-mail: (XW); (JZ)
| | - Qinglu Li
- Cardiovascular Division, Department of Medicine, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
| | - Qingsong Hu
- Cardiovascular Division, Department of Medicine, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
| | - Piradeep Suntharalingam
- Cardiovascular Division, Department of Medicine, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
| | - Arthur H. L. From
- Cardiovascular Division, Department of Medicine, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
| | - Jianyi Zhang
- Cardiovascular Division, Department of Medicine, University of Minnesota Medical School, Minneapolis, Minnesota, United States of America
- * E-mail: (XW); (JZ)
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26
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Liu Q, Zhang J, Xu Y, Huang Y, Wu C. Effect of carvedilol on cardiomyocyte apoptosis in a rat model of myocardial infarction: a role for toll-like receptor 4. Indian J Pharmacol 2014; 45:458-63. [PMID: 24130379 PMCID: PMC3793515 DOI: 10.4103/0253-7613.117729] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2012] [Revised: 09/09/2012] [Accepted: 06/30/2013] [Indexed: 01/20/2023] Open
Abstract
OBJECTIVES Toll-like receptor 4 (TLR4) is crucial in cardiomyocyte apoptosis induced by myocardial infarction (MI) and carvedilol has been reported to have anti-apoptotic effects. We hypothesized that the effects of this agent are in part mediated through TLR4 signaling pathways. MATERIALS AND METHODS A total of 48 rats were randomized to the following groups before surgery: sham-operated group (n = 8), MI group (n = 10) and three carvedilol-treatment groups (n = 30, 2 mg/kg, 10 mg/kg and 30 mg/kg). Sham and MI groups were given vehicle and carvedilol groups received different dose carvedilol, by direct gastric gavage for 7 days. On the 4(th) day of drug or vehicle administration, MI model was produced by ligating the left anterior descending coronary artery. On day 3 after MI, apoptosis was assessed by TdT-UTP nick-end assay; the levels of expression of Bax, Bcl-2, TLR4 and nuclear factor-κB (NF-κB) in infarcted myocardium were analyzed by immunohistochemistry. RESULTS Carvedilol ameliorated MI-induced apoptosis in a dose-dependent manner. In parallel, carvedilol also decreased the ratio of Bax to Bcl-2, the expression of TLR4 and NF-κB induced by MI. The extent of apoptosis and Bax-Bcl-2 ratio was strongly correlated with the TLR4 levels. CONCLUSION This study suggests that the short-term administration of carvedilol can significantly alleviate cardiomyocyte apoptosis in the infarcted myocardium probably by inhibiting the excessive expression of TLR4 and NF-κB induced by infarction.
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Affiliation(s)
- Qingwei Liu
- Department of Cardiology, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, PR China
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27
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Li J, Peng L, Du H, Wang Y, Lu B, Xu Y, Ye X, Shao J. The Protective Effect of Beraprost Sodium on Diabetic Cardiomyopathy through the Inhibition of the p38 MAPK Signaling Pathway in High-Fat-Induced SD Rats. Int J Endocrinol 2014; 2014:901437. [PMID: 25435878 PMCID: PMC4243139 DOI: 10.1155/2014/901437] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 10/12/2014] [Accepted: 10/13/2014] [Indexed: 11/23/2022] Open
Abstract
Objective. To investigate the effect of beraprost sodium (BPS) on diabetic cardiomyopathy and the underlying mechanism. Methods. A total of 40 Sprague Dawley rats were randomly divided into the normal control group (N = 10) and the model group (N = 30). The model group was fed a high-fat diet followed by a one-time dose of streptozotocin (STZ) to establish the diabetes mellitus model. After that, rats were randomly divided into two groups with or without BPS intervention. After 8 weeks, we explored the role of the p38 MAPK signaling pathway in inflammation, oxidative stress, cardiac morphology, and myocardial apoptosis. Results. Compared with control, the ratio of heart-weight to body-weight and the serum levels of SOD and GSH in the BPS group significantly increased, the expression of p38 MAPK, the serum levels of MDA, TGF-β1, TNF-α, HIF-1α, MMP-9, caspase-3, BNP, ANP, and heart Bax expression significantly decreased, and heart Bcl-2 expression significantly increased. H&E staining in diabetic rats showed the cardiac muscle fibers derangement, the widening gap, the pyknotic and fragmented nuclei, and more apoptosis. Conclusions. BPS effectively showed protective effects on diabetic myocardial cells, possibly through the inhibition of p38 MAPK signaling pathway.
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Affiliation(s)
- Jie Li
- Department of Endocrinology, Jinling Hospital, Medical School of Nanjing University, 305 East Zhongshan Road, Nanjing, Jiangsu 210002, China
| | - Li Peng
- Department of Endocrinology, Jinling Hospital, Medical School of Nanjing University, 305 East Zhongshan Road, Nanjing, Jiangsu 210002, China
| | - Hong Du
- Department of Endocrinology, Jinling Hospital, Medical School of Nanjing University, 305 East Zhongshan Road, Nanjing, Jiangsu 210002, China
| | - Yangtian Wang
- Department of Endocrinology, Jinling Hospital, Medical School of Nanjing University, 305 East Zhongshan Road, Nanjing, Jiangsu 210002, China
| | - Bin Lu
- Department of Endocrinology, Jinling Hospital, Medical School of Nanjing University, 305 East Zhongshan Road, Nanjing, Jiangsu 210002, China
| | - Yixin Xu
- Department of Endocrinology, Jinling Hospital, Medical School of Nanjing University, 305 East Zhongshan Road, Nanjing, Jiangsu 210002, China
| | - Xiaozhen Ye
- Department of Endocrinology, Jinling Hospital, Medical School of Nanjing University, 305 East Zhongshan Road, Nanjing, Jiangsu 210002, China
| | - Jiaqing Shao
- Department of Endocrinology, Jinling Hospital, Medical School of Nanjing University, 305 East Zhongshan Road, Nanjing, Jiangsu 210002, China
- *Jiaqing Shao:
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28
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Shukla SK, Sharma SB, Singh UR, Ahmad S, Maheshwari A, Misro M, Dwivedi S. Eugenia jambolana pretreatment prevents isoproterenol-induced myocardial damage in rats: evidence from biochemical, molecular, and histopathological studies. J Med Food 2013; 17:244-53. [PMID: 24325453 DOI: 10.1089/jmf.2013.2795] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Preventive effects of hydroalcoholic extract of fruit pulp of Eugenia jambolana (HEEJ) on isoproterenol (ISP)-induced myocardial damage in rats were evaluated. Rats were pre-treated with HEEJ (100, 200, and 400 mg/kg) daily for 30 days. ISP (85 mg/kg bw) was administered on the 28th and 29th days at an interval of 24 h. Ischemic control group exhibited significant increases in oxidative stress parameters, markers of inflammation, cardiac damage markers, and apoptotic markers. Oral pre-treatment with HEEJ (100, 200, and 400 mg/kg bw) provided cardioprotective activity by decreasing levels of malondialdehyde, cardiac markers (serum glutamate oxaloacetate transaminase, creatine kinase-myocardial band, cardiac troponin I), and markers of inflammation (interleukin-6, C-reactive protein, and tumor necrosis factor alpha); and increased levels of superoxide dismutase and reduced glutathione. HEEJ (400 mg/kg bw) was found to exert significantly greater effects in comparison to HEEJ (100 and 200 mg/kg bw). Apoptotic marker Bcl-2 was increased, while Bax was decreased in pre-treated rats, which was further confirmed by terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling assay. The present study provides evidence that pre-treatment with HEEJ attenuates oxidative stress, apoptosis and improves cardiac architecture in ISP-induced rats and, hence, is cardioprotective.
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Affiliation(s)
- Santosh Kumar Shukla
- 1 Department of Biochemistry, University College of Medical Sciences, University of Delhi , Delhi, India
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Ji BS, Cen J, He L, Liu M, Liu YQ, Liu L. Modulation of P-glycoprotein in rat brain microvessel endothelial cells under oxygen glucose deprivation. J Pharm Pharmacol 2013; 65:1508-17. [DOI: 10.1111/jphp.12122] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Accepted: 07/04/2013] [Indexed: 11/30/2022]
Abstract
Abstract
Objectives
To investigate modulation of P-glycoprotein (P-gp) in rat brain microvessel endothelial cells (rBMECs) under oxygen glucose deprivation (OGD).
Methods
The coculture of rBMECs and astrocytes was established to investigate the time course of P-gp, tumour necrosis factor-α (TNF-α), endothelin-1 (ET-1), nitric oxide synthase (NOS) and protein kinase C (PKC) expression in the rBMECs as well as rhodamine 123 (Rh123) transendothelial transfer under OGD using Western blot and HPLC, respectively. The influence of pharmacological tools including H398, JKC-301, RES-701-1, L-NMMA, BIM and SN50 on the P-gp expression as well as Rh123 transendothelial transfer was evaluated at 3 h time point of OGD.
Key findings
Elevated P-gp, TNF-α, ET-1, NOS and PKC expression in the rBMECs, as well as increased P-gp efflux activity were observed after 2 h or more time of OGD. Incubation of H398 and other pharmacological tools downregulated P-gp expression and functional activity in the rBMECs at 3 h time point of OGD.
Conclusions
This report suggested that TNF-α, ET-1, NOS and PKC may mediate upregulation of P-gp in the rBMECs under OGD, which may be worthy of being referenced for the investigation of P-gp at the blood–brain barrier in the early period of stroke.
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Affiliation(s)
- Bian-Sheng Ji
- Key Laboratory of Natural Medicine and Immune Engineering, Henan University, Kaifeng, China
| | - Juan Cen
- Key Laboratory of Natural Medicine and Immune Engineering, Henan University, Kaifeng, China
| | - Ling He
- Department of Pharmacology, China Pharmaceutical University, Nanjing, China
| | - Meng Liu
- Key Laboratory of Natural Medicine and Immune Engineering, Henan University, Kaifeng, China
| | - Yan-Qing Liu
- Key Laboratory of Natural Medicine and Immune Engineering, Henan University, Kaifeng, China
| | - Lu Liu
- Key Laboratory of Natural Medicine and Immune Engineering, Henan University, Kaifeng, China
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Cardioprotective effect of dipeptidyl peptidase-4 inhibitor during ischemia–reperfusion injury. Int J Cardiol 2013; 167:451-7. [DOI: 10.1016/j.ijcard.2012.01.011] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2011] [Revised: 12/30/2011] [Accepted: 01/06/2012] [Indexed: 12/23/2022]
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Collino M, Massimo C, Pini A, Alessandro P, Mastroianni R, Rosanna M, Benetti E, Elisa B, Lanzi C, Cecilia L, Bani D, Daniele B, Jacopo C, Manoni M, Marco M, Fantozzi R, Roberto F, Masini E, Emanuela M. The non-anticoagulant heparin-like K5 polysaccharide derivative K5-N,OSepi attenuates myocardial ischaemia/reperfusion injury. J Cell Mol Med 2013; 16:2196-207. [PMID: 22248092 PMCID: PMC3822989 DOI: 10.1111/j.1582-4934.2012.01530.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Heparin and low molecular weight heparins have been demonstrated to reduce myocardial ischaemia/reperfusion (I/R) injury, although their use is hampered by the risk of haemorrhagic and thrombotic complications. Chemical and enzymatic modifications of K5 polysaccharide have shown the possibility of producing heparin-like compounds with low anticoagulant activity and strong anti-inflammatory effects. Using a rat model of regional myocardial I/R, we investigated the effects of an epimerized N-,O-sulphated K5 polysaccharide derivative, K5-N,OSepi, on infarct size and histological signs of myocardial injury caused by 30 min. ligature of the left anterior descending coronary artery followed by 1 or 24 h reperfusion. K5-N,OSepi (0.1-1 mg/kg given i.v. 15 min. before reperfusion) significantly reduced the extent of myocardial damage in a dose-dependent manner. Furthermore, we investigated the potential mechanism(s) of the cardioprotective effect(s) afforded by K5-N,OSepi. In left ventricular samples, I/R induced mast cell degranulation and a robust increase in lipid peroxidation, free radical-induced DNA damage and calcium overload. Markers of neutrophil infiltration and activation were also induced by I/R in rat hearts, specifically myeloperoxidase activity, intercellular-adhesion-molecule-1 expression, prostaglandin-E(2) and tumour-necrosis-factor-α production. The robust increase in oxidative stress and inflammatory markers was blunted by K5-N,OSepi, in a dose-dependent manner, with maximum at 1 mg/kg. Furthermore, K5-N,OSepi administration attenuated the increase in caspase 3 activity, Bid and Bax activation and ameliorated the decrease in expression of Bcl-2 within the ischaemic myocardium. In conclusion, we demonstrate that the cardioprotective effect of the non-anticoagulant K5 derivative K5-N,OSepi is secondary to a combination of anti-apoptotic and anti-inflammatory effects.
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Affiliation(s)
| | - Collino Massimo
- Department of Anatomy, Pharmacology and Forensic Medicine, University of Turin, Turin, Italy
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de Jager SCA, Bongaerts BWC, Weber M, Kraaijeveld AO, Rousch M, Dimmeler S, van Dieijen-Visser MP, Cleutjens KBJM, Nelemans PJ, van Berkel TJC, Biessen EAL. Chemokines CCL3/MIP1α, CCL5/RANTES and CCL18/PARC are independent risk predictors of short-term mortality in patients with acute coronary syndromes. PLoS One 2012; 7:e45804. [PMID: 23029252 PMCID: PMC3448678 DOI: 10.1371/journal.pone.0045804] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2012] [Accepted: 08/24/2012] [Indexed: 12/25/2022] Open
Abstract
Cytokines play an important role in ischemic injury and repair. However, little is known about their prognostic value in cardiovascular disease. The aim of this study was to investigate the prognostic importance of chemokines CCL3/MIP-1α, CCL5/RANTES and CCL18/PARC for the risk of future cardiovascular events in patients with acute coronary syndromes (ACS). Baseline levels of CCL3/MIP-1α, CCL5/RANTES and CCL18/PARC were determined in ACS patients from the Bad Nauheim ACS II registry (n = 609). During the following 200 days, patients were monitored for the occurrence of fatal and non-fatal cardiovascular events. Patients with CCL3/MIP1α, CCL5/RANTES and CCL18/PARC concentrations in the highest tertile were associated with an increased risk of a fatal event during follow-up (HR: 2.19, 95%CI: 1.04–4.61 for CCL3/MIP1α, HR: 3.45, 95%CI: 1.54–7.72 for CCL5/RANTES and HR: 3.14, 95%CI: 1.33–7.46 for CCL18/PARC). This risk was highest for patients with all three biomarkers concentrations in the upper tertile (HR: 2.52, 95%CI: 1.11–5.65). Together with known risk predictors of cardiovascular events, CCL3/MIP-1α, CCL5/RANTES and CCL18/PARC combined improved the c-statistics from 0.74 to 0.81 (p = 0.007). In conclusion, CCL3/MIP-1α, CCL5/RANTES and CCL18/PARC are independently associated with the risk of short-term mortality in ACS patients. Combining all three biomarkers further increased their prognostic value.
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Affiliation(s)
- Saskia C. A. de Jager
- Division of Biopharmaceutics, Leiden Amsterdam Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Brenda W. C. Bongaerts
- Department of Pathology, Cardiovascular Research Institute Maastricht, Maastricht University Medical Centre, Maastricht, Maastricht, The Netherlands
- * E-mail:
| | - Michael Weber
- Department of Cardiology, Kerckhoff Heart Centre, Bad Nauheim, Germany
| | | | - Mat Rousch
- Department of Pathology, Cardiovascular Research Institute Maastricht, Maastricht University Medical Centre, Maastricht, Maastricht, The Netherlands
| | - Stefanie Dimmeler
- Institute for Cardiovascular Regeneration, Centre of Molecular Medicine, Goethe-University Frankfurt, Frankfurt am Main, Germany
| | | | - Kitty B. J. M. Cleutjens
- Department of Pathology, Cardiovascular Research Institute Maastricht, Maastricht University Medical Centre, Maastricht, Maastricht, The Netherlands
| | - Patty J. Nelemans
- Department of Epidemiology, Maastricht University, Maastricht, The Netherlands
| | - Theo J. C. van Berkel
- Division of Biopharmaceutics, Leiden Amsterdam Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Erik A. L. Biessen
- Department of Pathology, Cardiovascular Research Institute Maastricht, Maastricht University Medical Centre, Maastricht, Maastricht, The Netherlands
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Sopka S, Mertens C, Roehl AB, Schiffl K, Rossaint R, Classen-Linke I. Effects of xenon and isoflurane on apoptosis and inflammation in a porcine myocardial infarction model. Ann Anat 2012; 195:166-74. [PMID: 23022344 DOI: 10.1016/j.aanat.2012.07.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2012] [Revised: 07/11/2012] [Accepted: 07/11/2012] [Indexed: 10/27/2022]
Abstract
Volatile anaesthetics can reduce the infarction size in myocardial tissue when administered before and during experimentally induced ischaemia. The aim of this study was to investigate whether xenon is beneficial compared to isoflurane in limiting myocardial tissue apoptosis and inflammation induced by experimental ischaemia-reperfusion injury in a porcine right ventricular infarction model. Twenty-one animals used for this study randomly received isoflurane, xenon or thiopental, (n=6-8 per group). Myocardial infarction was induced for 90min, followed by reperfusion for 120min. Tissues from the left and right ventricles were removed from the sites of infarction, reperfusion and remote areas, and processed for immunohistochemistry. Apoptosis (caspase-3 staining) and neutrophilic infiltration (naphthol AS-D chloroacetate-specific esterase) were assessed and evaluated. Statistical analysis was performed using an ANOVA of repeated measures. Density of apoptotic cells were higher in tissues from animals that were anesthetized with xenon. This effect was significant in comparison to isoflurane (p=0.0177). Neutrophilic infiltration was significantly higher in the right compared to the left ventricle (p<0.001), whereas no significant differences in the number of granulocytes based on the anaesthetic regime or the different tissue areas were found. We conclude that xenon, in the early phase of ischaemia and reperfusion, induces a significant increase in apoptosis compared to isoflurane. Therefore, clinical use of this anaesthetic in cardiocompromised patients should be taken with care until more long-term studies have been carried out. The increased neutrophilic infiltration in the right vs. the left ventricle indicates the right ventricle being more susceptible to ischaemia-reperfusion injury.
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Affiliation(s)
- Sasa Sopka
- Department of Anaesthesiology, RWTH Aachen University, Pauwelsstraße 30, 52074 Aachen, Germany
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Carvalheiro T, Velada I, Valado A, Mendes F, Martinho A, António N, Gonçalves L, Providência L, Pais ML, Paiva A. Phenotypic and functional alterations on inflammatory peripheral blood cells after acute myocardial infarction. J Cardiovasc Transl Res 2012; 5:309-20. [PMID: 22528677 DOI: 10.1007/s12265-012-9365-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Accepted: 04/04/2012] [Indexed: 01/25/2023]
Abstract
The frequency and function of T cells, monocytes, and dendritic cell subsets were investigated in 12 patients after acute myocardial infarction (AMI)-(T0), 1 month after the episode (T1), and in 12 healthy individuals (HG). The cell characterization and the functional studies were performed by flow cytometry and by RT-PCR, after cell sorting. The most important findings at T0 moment, when compared with T1 and HG, were: a decrease in the frequency of IL-2-producing T cells; a lower frequency of TNF-α- and IL-6-producing monocytes, myeloid dendritic cells, and CD14(-/low)CD16(+)DCs; and a lower TNF-α mRNA expression, after sorting these cells. Moreover, the regulatory function of Treg cells, at T0 moment, was upregulated, based on the FoxP3, CTLA-4, and TGF-β mRNA expression increase. The majority of these phenotypic and functional alterations disappeared at T1. Our data demonstrate that AMI induces a significant change in the immune system homeostasis.
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Affiliation(s)
- Tiago Carvalheiro
- Histocompatibility Centre of Coimbra, Edifício São Jerónimo, 4° Piso, Praceta Mota Pinto, 3001-301 Coimbra, Portugal
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Wan LH, Chen J, Li L, Xiong WB, Zhou LM. Protective effects of Carthamus tinctorius injection on isoprenaline-induced myocardial injury in rats. PHARMACEUTICAL BIOLOGY 2011; 49:1204-1209. [PMID: 22014268 DOI: 10.3109/13880209.2011.576348] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
CONTEXT Carthamus tinctorius injection (CTI) is a traditional Chinese medicine (TCM) specifically used for the treatment of cerebral ischemia and myocardial ischemia. OBJECTIVE This study evaluated the protective effects of CTI on isoprenaline-induced acute myocardial ischemia (AMI) in rats and explored the underlying mechanisms. MATERIALS AND METHODS (i) Sprague-Dawley rats were randomly divided into 5 groups: control, myocardial ischemia model, and high-, low-dose of CTI groups (2.5 and 0.625 g/kg, respectively, i.p. for 5 days), and Xiang-Dan (20 g/kg) group (n = 10 in each group). AMI was induced by isoproterenol (5 mg/kg) by intraperitoneal injection. Assessment of electrocardiograms (ECG) was carried out. (ii) Another 40 rats were randomly divided into 5 groups, the concentration of IL-6 and TNF-α in serum were measured by radioimmunological assay; Bcl-2 and Bax protein expression were measured by immunohistochemistry. RESULTS CTI (2.5 and 0.625 g/kg) significantly inhibited the typical ECG S-T segment elevation, reduced concentration of IL-6 and TNF-α in serum, suppressed overexpression of Bax protein and also inhibited the reduction of Bcl-2 expression and markedly depressed the Bax/Bcl-2 ratio. DISCUSSION AND CONCLUSION These findings demonstrate that CTI is cardioprotective against AMI in rats and is likely to related to decrease inflammatory response mediated by TNF-α and IL-6, down-regulate protein level of Bax and up-regulate that of Bcl-2 in the heart tissue.
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Affiliation(s)
- Li-Hong Wan
- Department of Pharmacology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, China
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Naringenin more effectively inhibits inducible nitric oxide synthase and cyclooxygenase-2 expression in macrophages than in microglia. Nutr Res 2011; 30:858-64. [PMID: 21147369 DOI: 10.1016/j.nutres.2010.10.011] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2010] [Revised: 10/08/2010] [Accepted: 10/15/2010] [Indexed: 12/22/2022]
Abstract
Macrophages and microglia are thought to account for initial disease progression in acute myocardial infarction and acute ischemic stroke. Before our study, the inhibitory effects of naringenin, a flavonoid, on lipopolysaccharide (LPS)-induced inflammation in macrophages and microglia have not been fully reported and compared. We hypothesized that naringenin can effectively inhibit LPS-induced inflammation of macrophages and microglia at different concentrations, the range of which is broader, with the lowest concentration more easily achieved in macrophages. In this study, we compared the anti-inflammatory effects of naringenin on LPS-stimulated RAW 274.6 macrophages and BV2 microglia and the suppression effects of naringenin and vitamin C (a well-known anti-inflammatory agent) on LPS-induced nitrite production. The results show that macrophages could maintain cell viability at higher naringenin concentrations and were more easily activated by LPS in comparison to microglia (200 vs 100 μmol/L; 0.1 vs 1 μg/mL). Under LPS (1 μg/mL) stimulation in both cell types, naringenin (up to 200 μmol/L in macrophages and 100 μmol/L in microglia) inhibited nitrite production and inducible nitric oxide synthase and cyclooxygenase-2 expression in a dose-dependent manner. The range of naringenin concentrations for inhibition was broader, and the lowest concentration was more easily achieved in macrophages; the lowest effective concentrations of naringenin to achieve constant suppression effect were 50 μmol/L in macrophages and 100 μmol/L in microglia, respectively. Vitamin C (100 μmol/L), compared with naringenin (100 μmol/L), had less and no suppression effect on LPS (1 μg/mL)-induced nitrite production in macrophages and microglia, respectively. In conclusion, naringenin more effectively inhibits the LPS-induced inflammatory status, including nitrite production and inducible nitric oxide synthase and cyclooxygenase-2 expression, in macrophages than in microglia. The findings of the present study suggest that consumption of naringenin-containing flavonoids might be beneficial to the cardiovascular and cerebrovascular inflammatory process.
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Pro/Anti-inflammatory cytokine imbalance in postischemic left ventricular remodeling. Mediators Inflamm 2010; 2010:974694. [PMID: 20467464 PMCID: PMC2866240 DOI: 10.1155/2010/974694] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2010] [Accepted: 02/15/2010] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVES Cytokines play an important role in left ventricular remodeling consequent to myocardial ischemia. The aim of this study was to correlate cytokine production and lymphocyte apoptosis to post-ischemic left ventricular remodeling in patients affected by acute myocardial infarction (AMI) undergoing primary cutaneous angioplasty (PCI). METHODS In 40 patients, affected by AMI and undergoing PCI, we evaluated peripheral blood mononuclear cells (PBMCs), tumor necrosis factor-alpha (TNF-alpha) and interleukin 10 (IL10) production and apoptosis on day 1, day 3, day 7, 1 month and 6 months after PCI. Patients were divided into two subgroups of remodeling or not remodeling by echocardiographic criteria. RESULTS In the subgroup of remodeling patients, at each timepoint TNF-alpha production was increased significantly in comparison with the subgroup of not remodeling patients. IL10 production was statistically lower in remodeling subjects than in not remodeling ones 1 and 6 months after reperfusion. There were no differences between the two groups as regards lymphomonocyte apoptosis. CONCLUSIONS We found an increased production of pro-inflammatory cytokine TNF-alpha and a corresponding decrease of anti-inflammatory/regulatory cytokine IL10 in remodeling patients and we concluded that this cytokine imbalance resulted in pro-inflammatory effects which might contribute to the progression of left ventricular remodeling.
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Corallini F, Secchiero P, Beltrami AP, Cesselli D, Puppato E, Ferrari R, Beltrami CA, Zauli G. TNF-alpha modulates the migratory response of mesenchymal stem cells to TRAIL. Cell Mol Life Sci 2010; 67:1307-14. [PMID: 20063037 PMCID: PMC11115625 DOI: 10.1007/s00018-009-0246-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2009] [Revised: 12/01/2009] [Accepted: 12/22/2009] [Indexed: 01/10/2023]
Abstract
The number of circulating mesenchymal stem cells (MSC), analyzed after acute myocardial infarction (AMI), was lower in AMI patients who developed heart failure (HF) in the follow-up. Conversely, the circulating levels of tumor necrosis factor (TNF)-alpha, and osteoprotegerin (OPG) were higher in AMI patients who developed HF with respect to the patients who did not develop HF. In vitro exposure to TNF-alpha enhanced the migration of MSC in response to TNF-related apoptosis-inducing ligand (TRAIL) and significantly increased the release of OPG by endothelial cells. On the contrary, OPG dose-dependently neutralized the in vitro pro-migratory activity of TRAIL. Thus, TNF-alpha exhibits opposite effects on MSC migration driven by TRAIL: it is capable of potentiating MSC migration as well as of inhibiting MSC migration as an indirect consequence of OPG induction, which might result in a suboptimal recruitment of circulating MSC after AMI in those patients who develop HF in the follow-up.
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Affiliation(s)
- Federica Corallini
- Department of Morphology and Embryology, University of Ferrara, Via Fossato di Mortara 66, 44100 Ferrara, Italy
| | - Paola Secchiero
- Department of Morphology and Embryology, University of Ferrara, Via Fossato di Mortara 66, 44100 Ferrara, Italy
| | | | - Daniela Cesselli
- Interdepartmental Center of Regenerative Medicine, University of Udine, Udine, Italy
| | - Elisa Puppato
- Interdepartmental Center of Regenerative Medicine, University of Udine, Udine, Italy
| | - Roberto Ferrari
- Cardiovascular Institute, Azienda Ospedaliera-Universitaria S. Anna, Ferrara, Italy
| | | | - Giorgio Zauli
- Department of Morphology and Embryology, University of Ferrara, Via Fossato di Mortara 66, 44100 Ferrara, Italy
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Hoetzenecker K, Adlbrecht C, Lichtenauer M, Hacker S, Hoetzenecker W, Mangold A, Nickl S, Mitterbauer A, Zimmermann M, Lang IM, Klepetko W, Ankersmit HJ. Levels of sCD40, sCD40L, TNFα, and TNF-RI in the Culprit Coronary Artery During Myocardial Infarction. Lab Med 2009. [DOI: 10.1309/lm09wfbq5iqapamr] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Ørn S, Breland UM, Mollnes TE, Manhenke C, Dickstein K, Aukrust P, Ueland T. The chemokine network in relation to infarct size and left ventricular remodeling following acute myocardial infarction. Am J Cardiol 2009; 104:1179-83. [PMID: 19840558 DOI: 10.1016/j.amjcard.2009.06.028] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2009] [Revised: 06/11/2009] [Accepted: 06/11/2009] [Indexed: 11/27/2022]
Abstract
Increased circulating chemokines have been reported during acute myocardial infarction and might give prognostic information about future ischemic events. However, data on the chemokine network in relation to infarct size and measures of left ventricular remodeling after successful percutaneous coronary intervention (PCI) are lacking. A total of 42 patients with first-time ST-segment elevation acute myocardial infarction with a single occluded vessel were recruited, and cardiac magnetic resonance was used for serial assessment (2, 7, and 60 days) of infarct size and left ventricular remodeling. The chemokines were analyzed before and after PCI. After PCI, high levels of CCL4, CXCL16, CXCL10, and, in particular, CXCL8 within the first week after PCI correlated positively with the degree of myocardial damage, as reflected by correlations with the maximum troponin T levels and infarct size after 2 months, as assessed by cardiac magnetic resonance, and with impaired myocardial function after 2 months as assessed by cardiac magnetic resonance and neurohormonal methods. In contrast, the plasma levels of CCL3 and CXCL7 during the first week correlated negatively with myocardial dysfunction after 2 months. In conclusion, our findings suggest a role for chemokines in both adaptive and maladaptive responses after myocardial infarction and might support a role for CCL4, CXCL16, CXCL10, and, in particular, CXCL8 in postmyocardial infarction reperfusion and remodeling.
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Park M, Shen YT, Gaussin V, Heyndrickx GR, Bartunek J, Resuello RRG, Natividad FF, Kitsis RN, Vatner DE, Vatner SF. Apoptosis predominates in nonmyocytes in heart failure. Am J Physiol Heart Circ Physiol 2009; 297:H785-91. [PMID: 19465551 DOI: 10.1152/ajpheart.00310.2009] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The goal of this investigation was to determine the distribution of myocardial apoptosis in myocytes and nonmyocytes in primates and patients with heart failure (HF). Almost all clinical cardiologists and cardiovascular investigators believe that myocyte apoptosis is considered to be a cardinal sign of HF and a major factor in its pathogenesis. However, with the knowledge that 75% of the number of cells in the heart are nonmyocytes, it is important to determine whether the apoptosis in HF is occurring in myocytes or in nonmyocytes. We studied both a nonhuman primate model of chronic HF, induced by rapid pacing 2-6 mo after myocardial infarction (MI), and biopsies from patients with ischemic cardiomyopathy. Dual labeling with a cardiac muscle marker was used to discriminate apoptosis in myocytes versus nonmyocytes. Left ventricular ejection fraction decreased following MI (from 78% to 60%) and further with HF (35%, P < 0.05). As expected, total apoptosis was increased in the myocardium following recovery from MI (0.62 cells/mm(2)) and increased further with the development of HF (1.91 cells/mm(2)). Surprisingly, the majority of apoptotic cells in MI and MI + HF, and in both the adjacent and remote areas, were nonmyocytes. This was also observed in myocardial biopsies from patients with ischemic cardiomyopathy. We found that macrophages contributed the largest fraction of apoptotic nonmyocytes (41% vs. 18% neutrophils, 16% fibroblast, and 25% endothelial and other cells). Although HF in the failing human and monkey heart is characterized by significant apoptosis, in contrast to current concepts, the apoptosis in nonmyocytes was eight- to ninefold greater than in myocytes.
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Affiliation(s)
- Misun Park
- Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, University of Medicineand Dentistry of New Jersey, New Jersey Medical School, Newark, New Jersey 07103, USA
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Wernli G, Hasan W, Bhattacherjee A, van Rooijen N, Smith PG. Macrophage depletion suppresses sympathetic hyperinnervation following myocardial infarction. Basic Res Cardiol 2009; 104:681-93. [PMID: 19437062 DOI: 10.1007/s00395-009-0033-3] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2008] [Revised: 04/24/2009] [Accepted: 04/29/2009] [Indexed: 01/16/2023]
Abstract
Myocardial infarction induces sympathetic axon sprouting adjacent to the necrotic region, and this has been implicated in the etiology of arrhythmias resulting in sudden cardiac death. Previous studies show that nerve growth factor (NGF) is essential for enhanced post-infarct sympathetic sprouting, but the cell types necessary to supply this neurotrophic protein are unknown. The objective of the present study was to determine whether macrophages, which are known to synthesize NGF, are necessary for post-infarct cardiac sympathetic sprouting. Ovariectomized female rats received left coronary artery ligation or sham operation, followed by intravenous injection of liposomes containing saline vehicle or clodronate, which kills macrophages. Sham-operated myocardium contained some sympathetic axons, few myofibroblasts and T cells and no CD-68-positive macrophages. In rats receiving saline liposomes through 7 days post-ligation, the posterolateral infarct border contained numerous myofibroblasts, macrophages and T cells, and sympathetic innervation was increased twofold. Treatment with clodronate liposomes reduced macrophage numbers by 69%, while myofibroblast area was reduced by 23% and T cell number was unaffected. Clodronate liposome treatment reduced sympathetic axon density to levels comparable to the uninfarcted heart. NGF protein content measured in western blots was reduced to 33% of that present in infarcts where rats received saline-containing liposomes. Tissue morphometry confirmed that NGF immunostaining was dramatically reduced, and this was attributable primarily to reduced macrophage content. These results show that macrophage destruction markedly reduces post-infarction levels of NGF and that the presence of elevated numbers of macrophages is obligatory for development of sympathetic hyperinnervation following myocardial infarction.
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Affiliation(s)
- Gwenaelle Wernli
- Department of Molecular and Integrative Physiology, Kansas Intellectual and Developmental Disabilities Research Center, University of Kansas Medical Center, Mail Stop 3051, 3901 Rainbow Boulevard, Kansas City, KS 66160, USA
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Inflammatory responses after intracoronary mononuclear BM cell therapy in swine. Bone Marrow Transplant 2009; 44:427-31. [DOI: 10.1038/bmt.2009.52] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Schneider C, Krause K, Jaquet K, Geidel S, Malisius R, Boczor S, Rau T, Zienkiewicz T, Hennig D, Kuck KH. Intramyocardial transplantation of bone marrow-derived stem cells: ultrasonic strain rate imaging in a model of hibernating myocardium. J Card Fail 2008; 14:861-72. [PMID: 19041051 DOI: 10.1016/j.cardfail.2008.08.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2008] [Revised: 06/16/2008] [Accepted: 08/12/2008] [Indexed: 11/26/2022]
Abstract
BACKGROUND The aim of this study was to evaluate potential cardioprotective effects of bone marrow-derived stem cells in chronic ischemic myocardium regarding strain rate parameters during dobutamine stress echocardiography. METHODS An ameroid constrictor was placed around the circumflex artery in 23 pigs to induce hibernating myocardium. Pigs received autologous mesenchymal stem cells (auto MSCs), allogeneic MSC (allo MSC), autologous mononuclear cells (auto MNCs), or placebo injections into the ischemic region. During dobutamine stress echocardiography, peak systolic strain rates (SR(sys)) and systolic and postsystolic strain values (epsilon(sys), epsilon(ps)) were determined. The animals were evaluated regarding myocardial fibrosis, neovascularization, apoptosis, and myocardial beta-adrenergic receptor density. RESULTS The median ejection fraction was reduced in the control group compared with the auto MSC-, allo MSC-, and auto MNC-treated pigs (36.5% vs 46.0% vs 46.0% vs 41.5%; P = .001, respectively). Histopathology revealed a decreased myocardial fibrosis in auto MSC- (16.3%), allo MSC- (11.3%), and auto MNC- (16.7%) treated pigs compared with controls (31.0%; P = .004). The fibrosis and echocardiographic deformation data correlated in the posterior walls: rest peak SR(sys)r = -0.92; epsilon(sys)r = -0.86; 10 microg dobutamine stimulation peak SR(sys)r = -0.88, epsilon(sys), r = -0.87 (P = .0001). CONCLUSION Endocardial injection of stem cells may induce cardioprotective effects in chronic ischemic myocardium and helps to keep the ischemic myocardium viable.
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de Jager SCA, Kraaijeveld AO, Grauss RW, de Jager W, Liem SS, van der Hoeven BL, Prakken BJ, Putter H, van Berkel TJC, Atsma DE, Schalij MJ, Jukema JW, Biessen EAL. CCL3 (MIP-1 alpha) levels are elevated during acute coronary syndromes and show strong prognostic power for future ischemic events. J Mol Cell Cardiol 2008; 45:446-52. [PMID: 18619972 DOI: 10.1016/j.yjmcc.2008.06.003] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2008] [Accepted: 06/10/2008] [Indexed: 10/21/2022]
Abstract
As chemokines are considered instrumental in thrombotic plaque rupture and erosion as well as in ischemia-reperfusion injury processes, we aimed to identify previously unknown chemokines associated with acute coronary syndromes. Plasma of 44 patients with acute myocardial infarction (AMI) and 22 controls were profiled for a panel of chemokines by multiplex analysis. Levels of CCL3 were prospectively verified in 54 patients with unstable angina pectoris (UAP). An AMI mouse model was used to assess the relationship between differentially expressed chemokines and myocardial ischemia. CCL3 levels were significantly elevated in AMI vs. controls (P=0.02) albeit, that adjustment for confounding factors attenuated this association. In support of a direct association with cardiac ischemia CCL3 levels were also seen to be elevated in patients with UAP at baseline and significantly down-regulated after 180 days (P<0.001). Importantly, baseline upper quartile levels were strongly correlated with future acute coronary syndromes (Likelihood Ratio 11.5; P<0.01). Furthermore circulating levels of CCL3 were significantly enhanced after AMI in mice (P=0.02), while CCR5(+) T-cell numbers were increased as well, suggestive of CCL3 driven T-cell homing towards the ischemic area. CCL3 levels are elevated during ACS and released upon ischemia. Since CCL3 specifically predicts future cardiovascular events, it may serve as a predictive biomarker.
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Affiliation(s)
- Saskia C A de Jager
- Division of Biopharmaceutics, Leiden Amsterdam Center for Drug Research, Gorlaeus Laboratories, Leiden University, Einsteinweg 55, PO Box 9502, 2300 RA Leiden, Leiden, The Netherlands.
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Ciulla MM, Montelatici E, Ferrero S, Braidotti P, Paliotti R, Annoni G, De Camilli E, Busca G, Chiappa L, Rebulla P, Magrini F, Lazzari L. Potential advantages of cell administration on the inflammatory response compared to standard ACE inhibitor treatment in experimental myocardial infarction. J Transl Med 2008; 6:30. [PMID: 18549470 PMCID: PMC2435101 DOI: 10.1186/1479-5876-6-30] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2008] [Accepted: 06/12/2008] [Indexed: 01/13/2023] Open
Abstract
Background Bone Marrow (BM) progenitor cells can target the site of myocardial injury, contributing to tissue repair by neovascolarization and/or by a possible direct paracrine effect on the inflammatory cascade. Angiotensin Converting Enzyme inhibitors (ACE-I) are effective in reducing mortality and preventing left ventricular (LV) function deterioration after myocardial infarction. Methods We investigated the short term effects of BM mononuclear cells (BMMNCs) therapy on the pro-inflammatory cytokines (pro-CKs) and on LV remodelling and compared these effects over a standard ACE-I therapy in a rat model of myocardial cryodamage. Forty two adult inbread Fisher-F344 rats were randomized into three groups: untreated (UT; n = 12), pharmacological therapy (ACE-I; n = 14, receiving quinapril), and cellular therapy (BMMNCs; n = 16, receiving BMMNCs infusion). Rats underwent to a standard echocardiogram in the acute setting and 14 days after the damage, before the sacrifice. Pro-CKs analysis (interleukin (IL)1β, IL-6, tumor necrosis factor (TNF)α was performed (multiplex proteome arrays) on blood samples obtained by direct aorta puncture before the sacrifice; a control group of 6 rats was considered as reference. Results Concerning the extension of the infarcted area as well as the LV dimensions, no differences were observed among the animal groups; treated rats had lower left atrial diameters and higher indexes of LV function. Pro-Cks were increased in infarcted-UT rats if compared with controls, and significantly reduced by BMMNCs and ACE-I ; TNFα inversely correlated with LV fractional shortening. Conclusion After myocardial infarction, both BMMNCs and ACE-I reduce the pattern of pro-Ck response, probably contributing to prevent the deterioration of LV function observed in UT rats.
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Affiliation(s)
- Michele M Ciulla
- Istituto di Medicina Cardiovascolare, Centro di Fisiologia Clinica e Ipertensione, University of Milan, Italy.
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French BA, Kramer CM. Mechanisms of Post-Infarct Left Ventricular Remodeling. ACTA ACUST UNITED AC 2007; 4:185-196. [PMID: 18690295 DOI: 10.1016/j.ddmec.2007.12.006] [Citation(s) in RCA: 115] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Heart failure secondary to myocardial infarction (MI) remains a major source of morbidity and mortality. Long-term outcome after MI can be largely be defined in terms of its impact on the size and shape of the left ventricle (i.e., LV remodeling). Three major mechanisms contribute to LV remodeling: 1) early infarct expansion, 2) subsequent infarct extension into adjacent noninfarcted myocardium, and 3) late hypertrophy in the remote LV. Future developments in preventing post-MI heart failure will depend not only on identifying drugs targeting each of these individual mechanisms, but also on diagnostic techniques capable of assessing efficacy against each mechanism.
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Affiliation(s)
- Brent A French
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA 22908
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Klusa V, Pupure J, Isajevs S, Rumaks J, Gordjushina V, Kratovska A, Taivans I, Svirskis S, Viksna L, Kalvinsh I. Protection of azidothymidine-induced cardiopathology in mice by mildronate, a mitochondria-targeted drug. Basic Clin Pharmacol Toxicol 2007; 99:323-8. [PMID: 17040219 DOI: 10.1111/j.1742-7843.2006.pto_543.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Azidothymidine, a nucleoside-analogue reverse transcriptase inhibitor (NRTI), is a commonly used antiretroviral drug in AIDS treatment, however its use is limited by severe toxic side effects due to its influence on mitochondria that result in myopathy, particularly affecting the cardiac muscle. We suggest that effective protection of azidothymidine-induced cardiopathology can be expected from drugs that are capable of targeting mitochondria. Therefore the present study in mice was carried out with mildronate, a cardioprotective drug of the aza-butyrobetaine class, which previously has been shown to act as a highly potent protector of mitochondrial processes. In our study, saline (control), azidothymidine (50 mg/kg), mildronate (50, 100 and 200 mg/kg), and azidothymidine + mildronate (at the doses mentioned) were injected intraperitoneally daily in separate groups of mice for two weeks. At the termination of the experiment, mice were sacrificed, the hearts were removed and cardiac tissue was examined morphologically and immunohistochemically. It was found that azidothymidine, compared to control and mildronate groups, induced major morphologic changes in cardiac tissue, which were manifestated as degeneration and inflammation. These changes were prevented when mildronate was co-administered with azidothymidine. Mildronate also reduced the azidothymidine-induced expression of nuclear factor kappaBp65 (NF-kappaBp65). The obtained data demonstrate a high ability of mildronate of preventing azidothymidine-induced cardiopathologic changes, and suggest mildronate's indirect action on azidothymidine-caused oxidative stress reactions leading to mitochondrial dysfunction. This offers a rational combination of mildronate with azidothymidine or other anti-HIV drugs for beneficial application in AIDS therapy.
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Affiliation(s)
- Vija Klusa
- Department of Pharmacology, Faculty of Medicine, University of Latvia, Riga, Latvia.
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