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Nagy RN, Makkos A, Baranyai T, Giricz Z, Szabó M, Kravcsenko-Kiss B, Bereczki Z, Ágg B, Puskás LG, Faragó N, Schulz R, Gyöngyösi M, Lukovic D, Varga ZV, Görbe A, Ferdinandy P. Cardioprotective microRNAs (protectomiRs) in a pig model of acute myocardial infarction and cardioprotection by ischaemic conditioning: MiR-450a. Br J Pharmacol 2024. [PMID: 39294819 DOI: 10.1111/bph.17313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 06/05/2024] [Accepted: 07/04/2024] [Indexed: 09/21/2024] Open
Abstract
BACKGROUND AND PURPOSE Cardioprotective miRNAs (protectomiRs) are promising therapeutic tools. Here, we aimed to identify protectomiRs in a translational porcine model of acute myocardial infarction (AMI) and to validate their cardiocytoprotective effect. EXPERIMENTAL APPROACH ProtectomiR candidates were selected after systematic analysis of miRNA expression changes in cardiac tissue samples from a closed-chest AMI model in pigs subjected to sham operation, AMI and ischaemic preconditioning, postconditioning or remote preconditioning, respectively. Cross-species orthologue protectomiR candidates were validated in simulated ischaemia-reperfusion injury (sI/R) model of isolated rat ocardiomyocytes and in human AC16 cells as well. For miR-450a, we performed target prediction and analysed the potential mechanisms of action by GO enrichment and KEGG pathway analysis. KEY RESULTS Out of the 220 detected miRNAs, four were up-regulated and 10 were down-regulated due to all three conditionings versus AMI. MiR-450a and miR-451 mimics at 25 nM were protective in rat cardiomyocytes, and miR-450a showed protection in human cardiomyocytes as well. MiR-450a has 3987 predicted mRNA targets in pigs, 4279 in rats and 8328 in humans. Of these, 607 genes are expressed in all three species. A total of 421 common enriched GO terms were identified in all three species, whereas KEGG pathway analysis revealed 13 common pathways. CONCLUSION AND IMPLICATIONS This is the first demonstration that miR-450a is associated with cardioprotection by ischaemic conditioning in a clinically relevant porcine model and shows cardiocytoprotective effect in human cardiomyocytes, making it a promising drug candidate. The mechanism of action of miR-450a involves multiple cardioprotective pathways.
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Grants
- OTKA ANN 107803 Hungarian Scientific Research Fund
- OTKA K-105555 Hungarian Scientific Research Fund
- 2018-1.3.1-VKE-2018-00024 National Research, Development and Innovation Office
- NVKP-16-1-2016-0017 National Heart Program National Research, Development and Innovation Office
- OTKA-FK 134751 National Research, Development and Innovation Office
- TKP/ITM/NFKIH National Research, Development and Innovation Office
- OTKAK21-139105 National Research, Development and Innovation Office
- RRF-2.3.1-21-2022-00003 European Union
- EU COST Action CardioRNA.eu, Cardioprotection.eu
- 88öu1 Austrian-Hungarian Action Scholarship
- 739593 European Union's Horizon 2020
- 2019-1.1.1-PIACI-KFI-2019-00367 National Research, Development and Innovation Fund
- 2020-1.1.5-GYORSÍTÓSÁV-2021-00011 National Research, Development and Innovation Fund
- ÚNKP-20-5 National Research, Development and Innovation Fund
- ÚNKP-23-4-II-SE-34 National Research, Development and Innovation Fund
- János Bolyai Research Scholarship of Hungarian Academy of Sciences
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Affiliation(s)
- Regina N Nagy
- Cardiometabolic and HUN-REN-SU System Pharmacology Research Group, Center for Pharmacology and Drug Research & Development, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - András Makkos
- Cardiometabolic and HUN-REN-SU System Pharmacology Research Group, Center for Pharmacology and Drug Research & Development, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Tamás Baranyai
- Cardiometabolic and HUN-REN-SU System Pharmacology Research Group, Center for Pharmacology and Drug Research & Development, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Zoltán Giricz
- Cardiometabolic and HUN-REN-SU System Pharmacology Research Group, Center for Pharmacology and Drug Research & Development, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
- Pharmahungary Group, Szeged, Hungary
| | - Márta Szabó
- Cardiometabolic and HUN-REN-SU System Pharmacology Research Group, Center for Pharmacology and Drug Research & Development, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Bernadett Kravcsenko-Kiss
- Cardiometabolic and HUN-REN-SU System Pharmacology Research Group, Center for Pharmacology and Drug Research & Development, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Zoltán Bereczki
- Cardiometabolic and HUN-REN-SU System Pharmacology Research Group, Center for Pharmacology and Drug Research & Development, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Bence Ágg
- Cardiometabolic and HUN-REN-SU System Pharmacology Research Group, Center for Pharmacology and Drug Research & Development, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
- Pharmahungary Group, Szeged, Hungary
| | - László G Puskás
- Laboratory of Functional Genomics, Biological Research Centre, Szeged, Hungary
| | - Nóra Faragó
- Laboratory of Functional Genomics, Biological Research Centre, Szeged, Hungary
| | - Rainer Schulz
- Institute of Physiology, Justus-Liebig University of Giessen, Giessen, Germany
| | - Mariann Gyöngyösi
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, Vienna, Austria
| | - Dominika Lukovic
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, Vienna, Austria
| | - Zoltán V Varga
- Cardiometabolic and HUN-REN-SU System Pharmacology Research Group, Center for Pharmacology and Drug Research & Development, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
- HCEMM-SU Cardiometabolic Immunology Research Group, Semmelweis University, Budapest, Hungary
| | - Anikó Görbe
- Cardiometabolic and HUN-REN-SU System Pharmacology Research Group, Center for Pharmacology and Drug Research & Development, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
- Pharmahungary Group, Szeged, Hungary
| | - Péter Ferdinandy
- Cardiometabolic and HUN-REN-SU System Pharmacology Research Group, Center for Pharmacology and Drug Research & Development, Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
- Pharmahungary Group, Szeged, Hungary
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2
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Keles M, Grein S, Froese N, Wirth D, Trogisch FA, Wardman R, Hemanna S, Weinzierl N, Koch PS, Uhlig S, Lomada S, Dittrich GM, Szaroszyk M, Haustein R, Hegermann J, Martin-Garrido A, Bauersachs J, Frank D, Frey N, Bieback K, Cordero J, Dobreva G, Wieland T, Heineke J. Endothelial derived, secreted long non-coding RNAs Gadlor1 and Gadlor2 aggravate cardiac remodeling. MOLECULAR THERAPY. NUCLEIC ACIDS 2024; 35:102306. [PMID: 39281699 PMCID: PMC11402397 DOI: 10.1016/j.omtn.2024.102306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 08/12/2024] [Indexed: 09/18/2024]
Abstract
Pathological cardiac remodeling predisposes individuals to developing heart failure. Here, we investigated two co-regulated long non-coding RNAs (lncRNAs), termed Gadlor1 and Gadlor2, which are upregulated in failing hearts of patients and mice. Cardiac overexpression of Gadlor1 and Gadlor2 aggravated myocardial dysfunction and enhanced hypertrophic and fibrotic remodeling in mice exposed to pressure overload. Compound Gadlor1/2 knockout (KO) mice showed markedly reduced myocardial hypertrophy, fibrosis, and dysfunction, while exhibiting increased angiogenesis during short and prolonged periods of pressure overload. Paradoxically, Gadlor1/2 KO mice suffered from sudden death during prolonged overload, possibly due to cardiac arrhythmia. Gadlor1 and Gadlor2, which are mainly expressed in endothelial cells (ECs) in the heart, where they inhibit pro-angiogenic gene expression, are strongly secreted within extracellular vesicles (EVs). These EVs transfer Gadlor lncRNAs to cardiomyocytes, where they bind and activate calmodulin-dependent kinase II, and impact pro-hypertrophic gene expression and calcium homeostasis. Therefore, we reveal a crucial lncRNA-based mechanism of EC-cardiomyocyte crosstalk during heart failure, which could be specifically modified in the future for therapeutic purposes.
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Affiliation(s)
- Merve Keles
- ECAS (European Center for Angioscience), Department of Cardiovascular Physiology, Medical Faculty Mannheim of Heidelberg University, 68167 Mannheim, Germany
- CFPM (Core Facility Platform Mannheim), Cardiac Imaging Center, Medical Faculty Mannheim of Heidelberg University, 68167 Mannheim, Germany
- DZHK (German Center for Cardiovascular Research), partner site Heidelberg/Mannheim, 69120 Heidelberg, Germany
| | - Steve Grein
- ECAS (European Center for Angioscience), Department of Cardiovascular Physiology, Medical Faculty Mannheim of Heidelberg University, 68167 Mannheim, Germany
- DZHK (German Center for Cardiovascular Research), partner site Heidelberg/Mannheim, 69120 Heidelberg, Germany
| | - Natali Froese
- Department of Cardiology and Angiology, Hannover Medical School, 30625 Hannover, Germany
| | - Dagmar Wirth
- Helmholtz Center for Infection Research, Model Systems for Infection and Immunity, 38124 Braunschweig, Germany
| | - Felix A Trogisch
- ECAS (European Center for Angioscience), Department of Cardiovascular Physiology, Medical Faculty Mannheim of Heidelberg University, 68167 Mannheim, Germany
- CFPM (Core Facility Platform Mannheim), Cardiac Imaging Center, Medical Faculty Mannheim of Heidelberg University, 68167 Mannheim, Germany
- DZHK (German Center for Cardiovascular Research), partner site Heidelberg/Mannheim, 69120 Heidelberg, Germany
| | - Rhys Wardman
- ECAS (European Center for Angioscience), Department of Cardiovascular Physiology, Medical Faculty Mannheim of Heidelberg University, 68167 Mannheim, Germany
- DZHK (German Center for Cardiovascular Research), partner site Heidelberg/Mannheim, 69120 Heidelberg, Germany
| | - Shruthi Hemanna
- ECAS (European Center for Angioscience), Department of Cardiovascular Physiology, Medical Faculty Mannheim of Heidelberg University, 68167 Mannheim, Germany
- DZHK (German Center for Cardiovascular Research), partner site Heidelberg/Mannheim, 69120 Heidelberg, Germany
| | - Nina Weinzierl
- ECAS (European Center for Angioscience), Department of Cardiovascular Physiology, Medical Faculty Mannheim of Heidelberg University, 68167 Mannheim, Germany
| | - Philipp-Sebastian Koch
- Department of Dermatology, Venereology and Allergology, University Medical Center and Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany
| | - Stefanie Uhlig
- CFPM, FlowCore, Medical Faculty Mannheim of Heidelberg University, 68167 Mannheim, Germany
| | - Santosh Lomada
- DZHK (German Center for Cardiovascular Research), partner site Heidelberg/Mannheim, 69120 Heidelberg, Germany
- ECAS, Department of Experimental Pharmacology, Medical Faculty Mannheim of Heidelberg University, 68167 Mannheim, Germany
| | - Gesine M Dittrich
- ECAS (European Center for Angioscience), Department of Cardiovascular Physiology, Medical Faculty Mannheim of Heidelberg University, 68167 Mannheim, Germany
- DZHK (German Center for Cardiovascular Research), partner site Heidelberg/Mannheim, 69120 Heidelberg, Germany
| | - Malgorzata Szaroszyk
- Department of Cardiology and Angiology, Hannover Medical School, 30625 Hannover, Germany
| | - Ricarda Haustein
- Department of Cardiology and Angiology, Hannover Medical School, 30625 Hannover, Germany
| | - Jan Hegermann
- Institute of Functional and Applied Anatomy, Core Unit Electron Microscopy, Hannover Medical School, 30625 Hannover, Germany
| | - Abel Martin-Garrido
- ECAS (European Center for Angioscience), Department of Cardiovascular Physiology, Medical Faculty Mannheim of Heidelberg University, 68167 Mannheim, Germany
| | - Johann Bauersachs
- Department of Cardiology and Angiology, Hannover Medical School, 30625 Hannover, Germany
| | - Derk Frank
- Department of Internal Medicine III, University Hospital Schleswig-Holstein, 24105 Kiel, Germany
- DZHK, partner site Hamburg/Kiel/Lübeck, 20246 Hamburg, Germany
| | - Norbert Frey
- DZHK (German Center for Cardiovascular Research), partner site Heidelberg/Mannheim, 69120 Heidelberg, Germany
- Department of Internal Medicine III, Medical Faculty Heidelberg, Heidelberg University, 69120 Heidelberg, Germany
| | - Karen Bieback
- CFPM, FlowCore, Medical Faculty Mannheim of Heidelberg University, 68167 Mannheim, Germany
| | - Julio Cordero
- ECAS, Department of Cardiovascular Genomics and Epigenomics, Medical Faculty Mannheim of Heidelberg University, 68167 Mannheim, Germany
| | - Gergana Dobreva
- DZHK (German Center for Cardiovascular Research), partner site Heidelberg/Mannheim, 69120 Heidelberg, Germany
- ECAS, Department of Cardiovascular Genomics and Epigenomics, Medical Faculty Mannheim of Heidelberg University, 68167 Mannheim, Germany
| | - Thomas Wieland
- DZHK (German Center for Cardiovascular Research), partner site Heidelberg/Mannheim, 69120 Heidelberg, Germany
- ECAS, Department of Experimental Pharmacology, Medical Faculty Mannheim of Heidelberg University, 68167 Mannheim, Germany
| | - Joerg Heineke
- ECAS (European Center for Angioscience), Department of Cardiovascular Physiology, Medical Faculty Mannheim of Heidelberg University, 68167 Mannheim, Germany
- CFPM (Core Facility Platform Mannheim), Cardiac Imaging Center, Medical Faculty Mannheim of Heidelberg University, 68167 Mannheim, Germany
- DZHK (German Center for Cardiovascular Research), partner site Heidelberg/Mannheim, 69120 Heidelberg, Germany
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3
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Sleiman Y, Reisqs JB, Boutjdir M. Differentiation of Sinoatrial-like Cardiomyocytes as a Biological Pacemaker Model. Int J Mol Sci 2024; 25:9155. [PMID: 39273104 PMCID: PMC11394733 DOI: 10.3390/ijms25179155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2024] [Revised: 08/16/2024] [Accepted: 08/18/2024] [Indexed: 09/15/2024] Open
Abstract
Human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) are widely used for disease modeling and pharmacological screening. However, their application has mainly focused on inherited cardiopathies affecting ventricular cardiomyocytes, leading to extensive knowledge on generating ventricular-like hiPSC-CMs. Electronic pacemakers, despite their utility, have significant disadvantages, including lack of hormonal responsiveness, infection risk, limited battery life, and inability to adapt to changes in heart size. Therefore, developing an in vitro multiscale model of the human sinoatrial node (SAN) pacemaker using hiPSC-CM and SAN-like cardiomyocyte differentiation protocols is essential. This would enhance the understanding of SAN-related pathologies and support targeted therapies. Generating SAN-like cardiomyocytes offers the potential for biological pacemakers and specialized conduction tissues, promising significant benefits for patients with conduction system defects. This review focuses on arrythmias related to pacemaker dysfunction, examining protocols' advantages and drawbacks for generating SAN-like cardiomyocytes from hESCs/hiPSCs, and discussing therapeutic approaches involving their engraftment in animal models.
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Affiliation(s)
- Yvonne Sleiman
- Cardiovascular Research Program, VA New York Harbor Healthcare System, New York, NY 11209, USA
| | - Jean-Baptiste Reisqs
- Cardiovascular Research Program, VA New York Harbor Healthcare System, New York, NY 11209, USA
| | - Mohamed Boutjdir
- Cardiovascular Research Program, VA New York Harbor Healthcare System, New York, NY 11209, USA
- Department of Medicine, Cell Biology and Pharmacology, State University of New York Downstate Health Sciences University, New York, NY 11203, USA
- Department of Medicine, New York University Grossman School of Medicine, New York, NY 10016, USA
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4
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Golubeva VA, Das AS, Rabolli CP, Dorn LE, van Berlo JH, Accornero F. YTHDF1 is pivotal for maintenance of cardiac homeostasis. J Mol Cell Cardiol 2024; 193:25-35. [PMID: 38768805 DOI: 10.1016/j.yjmcc.2024.05.008] [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] [Received: 01/17/2024] [Revised: 04/30/2024] [Accepted: 05/15/2024] [Indexed: 05/22/2024]
Abstract
The YTH-domain family (YTHDF) of RNA binding proteins can control gene expression at the post-transcriptional level by regulating mRNAs with N6-methyladenosine (m6A) modifications. Despite the established importance of m6A in the heart, the cardiac role of specific m6A-binding proteins remains unclear. Here, we characterized the function of YTHDF1 in cardiomyocytes using a newly generated cardiac-restricted mouse model. Deletion of YTHDF1 in adult cardiomyocytes led to hypertrophy, fibrosis, and dysfunction. Using mass spectrometry, we identified the necessity of YTHDF1 for the expression of cardiomyocyte membrane raft proteins. Specifically, YTHDF1 bound to m6A-modified Caveolin 1 (Cav1) mRNA and favored its translation. We further demonstrated that YTHDF1 regulates downstream ERK signaling. Altogether, our findings highlight a novel role for YTHDF1 as a post-transcriptional regulator of caveolar proteins which is necessary for the maintenance of cardiac function.
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Affiliation(s)
- Volha A Golubeva
- Department of Physiology & Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH, USA
| | - Anindhya Sundar Das
- Department of Physiology & Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH, USA; Department of Molecular Biology, Cell Biology & Biochemistry, Brown University, Providence, RI, USA
| | - Charles P Rabolli
- Department of Physiology & Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH, USA
| | - Lisa E Dorn
- Department of Physiology & Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH, USA
| | - Jop H van Berlo
- Cardiovascular Division, Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Federica Accornero
- Department of Physiology & Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH, USA; Department of Molecular Biology, Cell Biology & Biochemistry, Brown University, Providence, RI, USA.
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5
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Querio G, Antoniotti S, Levi R, Fleischmann BK, Gallo MP, Malan D. Insulin-Activated Signaling Pathway and GLUT4 Membrane Translocation in hiPSC-Derived Cardiomyocytes. Int J Mol Sci 2024; 25:8197. [PMID: 39125765 PMCID: PMC11312081 DOI: 10.3390/ijms25158197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 07/17/2024] [Accepted: 07/23/2024] [Indexed: 08/12/2024] Open
Abstract
Human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CM) are a cell model now widely used to investigate pathophysiological features of cardiac tissue. Given the invaluable contribution hiPSC-CM could make for studies on cardio-metabolic disorders by defining a postnatal metabolic phenotype, our work herein focused on monitoring the insulin response in CM derived from the hiPSC line UKBi015-B. Western blot analysis on total cell lysates obtained from hiPSC-CM showed increased phosphorylation of both AKT and AS160 following insulin treatment, but failed to highlight any changes in the expression dynamics of the glucose transporter GLUT4. By contrast, the Western blot analysis of membrane fractions, rather than total lysates, revealed insulin-induced plasma membrane translocation of GLUT4, which is known to also occur in postnatal CM. Thus, these findings suggest that hiPSC-derived CMs exhibit an insulin response reminiscent to that of adult CMs regarding intracellular signaling and GLUT4 translocation to the plasma membrane, representing a suitable cellular model in the cardio-metabolic research field. Moreover, our studies also demonstrate the relevance of analyzing membrane fractions rather than total lysates in order to monitor GLUT4 dynamics in response to metabolic regulators in hiPSC-CMs.
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Affiliation(s)
- Giulia Querio
- Department of Clinical and Biological Sciences, University of Turin, Regione Gonzole 10, 10043 Orbassano, Italy;
| | - Susanna Antoniotti
- Department of Life Sciences and Systems Biology, University of Turin, Via Accademia Albertina 13, 10123 Turin, Italy; (S.A.); (R.L.)
| | - Renzo Levi
- Department of Life Sciences and Systems Biology, University of Turin, Via Accademia Albertina 13, 10123 Turin, Italy; (S.A.); (R.L.)
| | - Bernd K. Fleischmann
- Institute of Physiology I, Medical Faculty, University of Bonn, 53127 Bonn, Germany; (B.K.F.); (D.M.)
| | - Maria Pia Gallo
- Department of Life Sciences and Systems Biology, University of Turin, Via Accademia Albertina 13, 10123 Turin, Italy; (S.A.); (R.L.)
| | - Daniela Malan
- Institute of Physiology I, Medical Faculty, University of Bonn, 53127 Bonn, Germany; (B.K.F.); (D.M.)
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6
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Cao J, Chen H, Song Q, Sun H, Yang H, Bai Y. Isolation and identification of primary cells: A comprehensive primary cell culture experiment for graduate students. BIOCHEMISTRY AND MOLECULAR BIOLOGY EDUCATION : A BIMONTHLY PUBLICATION OF THE INTERNATIONAL UNION OF BIOCHEMISTRY AND MOLECULAR BIOLOGY 2024. [PMID: 39016079 DOI: 10.1002/bmb.21852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 06/21/2024] [Accepted: 07/09/2024] [Indexed: 07/18/2024]
Abstract
Experimental teaching is an important part of postgraduate training in basic and clinical medicine. While primary cell isolation and identification are among the most important research techniques for medical graduate students, most graduate students do not understand and master these techniques before starting their research experience. In particular, many students lack training in this field, and high-quality teaching and learning materials are still very sparse. Here, we designed a practical experiment course for graduate students engaged in research. The target students usually have research projects involving primary cell culture in their future research, making the course highly applicable for the students. The lab exercise focused on the methods of primary cell isolation (including mechanical grinding method, explant culture method and enzymatic digestion method) and identification (including flow cytometry, immunofluorescence, and periodic acid-Schiff (PAS) staining). It aimed to help students master the conceptual, principle, technical, operation, and analytical skills related to primary cell culture and contributed to their foundation for future research. Students generally reflect that they have initially mastered the isolation and identification of primary cell culture as a result of the course. Student feedback also indicates significantly increased confidence in the practical application of primary cell culture in the future. Here, we provide our experience for others who may want to implement similar courses.
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Affiliation(s)
- Jixiang Cao
- Department of Cell Biology, Peking University Health Science Center, Beijing, China
| | - Hao Chen
- Department of Biochemistry and Biophysics, Peking University Health Science Center, Beijing, China
| | - Qing Song
- Department of Cell Biology, Peking University Health Science Center, Beijing, China
| | - Hong Sun
- Office of Scientific Research and Graduate Studies, Peking University Health Science Center, Beijing, China
| | - Hua Yang
- Department of Cell Biology, Peking University Health Science Center, Beijing, China
| | - Yun Bai
- Department of Cell Biology, Peking University Health Science Center, Beijing, China
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7
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Mensah IK, Gowher H. Signaling Pathways Governing Cardiomyocyte Differentiation. Genes (Basel) 2024; 15:798. [PMID: 38927734 PMCID: PMC11202427 DOI: 10.3390/genes15060798] [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: 05/24/2024] [Revised: 06/13/2024] [Accepted: 06/13/2024] [Indexed: 06/28/2024] Open
Abstract
Cardiomyocytes are the largest cell type that make up the heart and confer beating activity to the heart. The proper differentiation of cardiomyocytes relies on the efficient transmission and perception of differentiation cues from several signaling pathways that influence cardiomyocyte-specific gene expression programs. Signaling pathways also mediate intercellular communications to promote proper cardiomyocyte differentiation. We have reviewed the major signaling pathways involved in cardiomyocyte differentiation, including the BMP, Notch, sonic hedgehog, Hippo, and Wnt signaling pathways. Additionally, we highlight the differences between different cardiomyocyte cell lines and the use of these signaling pathways in the differentiation of cardiomyocytes from stem cells. Finally, we conclude by discussing open questions and current gaps in knowledge about the in vitro differentiation of cardiomyocytes and propose new avenues of research to fill those gaps.
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Affiliation(s)
| | - Humaira Gowher
- Department of Biochemistry, Purdue University, West Lafayette, IN 47907, USA
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8
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Chen T, Ellman DG, Fang S, Bak ST, Nørgård MØ, Svenningsen P, Andersen DC. Transfer of cardiomyocyte-derived extracellular vesicles to neighboring cardiac cells requires tunneling nanotubes during heart development. Theranostics 2024; 14:3843-3858. [PMID: 38994028 PMCID: PMC11234280 DOI: 10.7150/thno.91604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 05/26/2024] [Indexed: 07/13/2024] Open
Abstract
Rationale: Extracellular vesicles (EVs) are thought to mediate intercellular communication during development and disease. Yet, biological insight to intercellular EV transfer remains elusive, also in the heart, and is technically challenging to demonstrate. Here, we aimed to investigate biological transfer of cardiomyocyte-derived EVs in the neonatal heart. Methods: We exploited CD9 as a marker of EVs, and generated two lines of cardiomyocyte specific EV reporter mice: Tnnt2-Cre; double-floxed inverted CD9/EGFP and αMHC-MerCreMer; double-floxed inverted CD9/EGFP. The two mouse lines were utilized to determine whether developing cardiomyocytes transfer EVs to other cardiac cells (non-myocytes and cardiomyocytes) in vitro and in vivo and investigate the intercellular transport pathway of cardiomyocyte-derived EVs. Results: Genetic tagging of cardiomyocytes was confirmed in both reporter mouse lines and proof of concept in the postnatal heart showed that, a fraction of EGFP+/MYH1- non-myocytes exist firmly demonstrating in vivo cardiomyocyte-derived EV transfer. However, two sets of direct and indirect EGFP +/- cardiac cell co-cultures showed that cardiomyocyte-derived EGFP+ EV transfer requires cell-cell contact and that uptake of EGFP+ EVs from the medium is limited. The same was observed when co-cultiring with mouse macrophages. Further mechanistic insight showed that cardiomyocyte EV transfer occurs through type I tunneling nanotubes. Conclusion: While the current notion assumes that EVs are transferred through secretion to the surroundings, our data show that cardiomyocyte-derived EV transfer in the developing heart occurs through nanotubes between neighboring cells. Whether these data are fundamental and relate to adult hearts and other organs remains to be determined, but they imply that the normal developmental process of EV transfer goes through cell-cell contact rather than through the extracellular compartment.
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Affiliation(s)
- Ting Chen
- Andersen Group, Department of Clinical Biochemistry, Odense University Hospital, Odense, Denmark
- Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
- Department of Urology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Ditte Gry Ellman
- Andersen Group, Department of Clinical Biochemistry, Odense University Hospital, Odense, Denmark
- Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Shu Fang
- Andersen Group, Department of Clinical Biochemistry, Odense University Hospital, Odense, Denmark
- Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Sara Thornby Bak
- Andersen Group, Department of Clinical Biochemistry, Odense University Hospital, Odense, Denmark
- Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Mikkel Ørnfeldt Nørgård
- Department of Molecular Medicine, Unit of Cardiovascular and Renal Research, University of Southern Denmark, Odense, Denmark
| | - Per Svenningsen
- Department of Molecular Medicine, Unit of Cardiovascular and Renal Research, University of Southern Denmark, Odense, Denmark
| | - Ditte Caroline Andersen
- Andersen Group, Department of Clinical Biochemistry, Odense University Hospital, Odense, Denmark
- Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
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9
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Sikder K, Phillips E, Zhong Z, Wang N, Saunders J, Mothy D, Kossenkov A, Schneider T, Nichtova Z, Csordas G, Margulies KB, Choi JC. Perinuclear damage from nuclear envelope deterioration elicits stress responses that contribute to LMNA cardiomyopathy. SCIENCE ADVANCES 2024; 10:eadh0798. [PMID: 38718107 PMCID: PMC11078192 DOI: 10.1126/sciadv.adh0798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 04/03/2024] [Indexed: 05/12/2024]
Abstract
Mutations in the LMNA gene encoding lamins A/C cause an array of tissue-selective diseases, with the heart being the most commonly affected organ. Despite progress in understanding the perturbations emanating from LMNA mutations, an integrative understanding of the pathogenesis underlying cardiac dysfunction remains elusive. Using a novel conditional deletion model capable of translatome profiling, we observed that cardiomyocyte-specific Lmna deletion in adult mice led to rapid cardiomyopathy with pathological remodeling. Before cardiac dysfunction, Lmna-deleted cardiomyocytes displayed nuclear abnormalities, Golgi dilation/fragmentation, and CREB3-mediated stress activation. Translatome profiling identified MED25 activation, a transcriptional cofactor that regulates Golgi stress. Autophagy is disrupted in the hearts of these mice, which can be recapitulated by disrupting the Golgi. Systemic administration of modulators of autophagy or ER stress significantly delayed cardiac dysfunction and prolonged survival. These studies support a hypothesis wherein stress responses emanating from the perinuclear space contribute to the LMNA cardiomyopathy development.
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Affiliation(s)
- Kunal Sikder
- Center for Translational Medicine, Department of Medicine, Thomas Jefferson University, Philadelphia PA, USA
| | - Elizabeth Phillips
- Center for Translational Medicine, Department of Medicine, Thomas Jefferson University, Philadelphia PA, USA
| | - Zhijiu Zhong
- Translational Research and Pathology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Nadan Wang
- Center for Translational Medicine, Department of Medicine, Thomas Jefferson University, Philadelphia PA, USA
| | - Jasmine Saunders
- Center for Translational Medicine, Department of Medicine, Thomas Jefferson University, Philadelphia PA, USA
| | - David Mothy
- Center for Translational Medicine, Department of Medicine, Thomas Jefferson University, Philadelphia PA, USA
| | - Andrew Kossenkov
- Bioinformatics Facility, The Wistar Institute Cancer Center, Philadelphia, PA, USA
| | - Timothy Schneider
- Mitocare, Department of Pathology, Anatomy, and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Zuzana Nichtova
- Mitocare, Department of Pathology, Anatomy, and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Gyorgy Csordas
- Mitocare, Department of Pathology, Anatomy, and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Kenneth B. Margulies
- Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Jason C. Choi
- Center for Translational Medicine, Department of Medicine, Thomas Jefferson University, Philadelphia PA, USA
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10
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Ruud M, Frisk M, Melleby AO, Norseng PA, Mohamed BA, Li J, Aronsen JM, Setterberg IE, Jakubiczka J, van Hout I, Coffey S, Shen X, Nygård S, Lunde IG, Tønnessen T, Jones PP, Sjaastad I, Gullestad L, Toischer K, Dahl CP, Christensen G, Louch WE. Regulation of cardiomyocyte t-tubule structure by preload and afterload: Roles in cardiac compensation and decompensation. J Physiol 2024. [PMID: 38686538 DOI: 10.1113/jp284566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 04/02/2024] [Indexed: 05/02/2024] Open
Abstract
Mechanical load is a potent regulator of cardiac structure and function. Although high workload during heart failure is associated with disruption of cardiomyocyte t-tubules and Ca2+ homeostasis, it remains unclear whether changes in preload and afterload may promote adaptive t-tubule remodelling. We examined this issue by first investigating isolated effects of stepwise increases in load in cultured rat papillary muscles. Both preload and afterload increases produced a biphasic response, with the highest t-tubule densities observed at moderate loads, whereas excessively low and high loads resulted in low t-tubule levels. To determine the baseline position of the heart on this bell-shaped curve, mice were subjected to mildly elevated preload or afterload (1 week of aortic shunt or banding). Both interventions resulted in compensated cardiac function linked to increased t-tubule density, consistent with ascension up the rising limb of the curve. Similar t-tubule proliferation was observed in human patients with moderately increased preload or afterload (mitral valve regurgitation, aortic stenosis). T-tubule growth was associated with larger Ca2+ transients, linked to upregulation of L-type Ca2+ channels, Na+-Ca2+ exchanger, mechanosensors and regulators of t-tubule structure. By contrast, marked elevation of cardiac load in rodents and patients advanced the heart down the declining limb of the t-tubule-load relationship. This bell-shaped relationship was lost in the absence of electrical stimulation, indicating a key role of systolic stress in controlling t-tubule plasticity. In conclusion, modest augmentation of workload promotes compensatory increases in t-tubule density and Ca2+ cycling, whereas this adaptation is reversed in overloaded hearts during heart failure progression. KEY POINTS: Excised papillary muscle experiments demonstrated a bell-shaped relationship between cardiomyocyte t-tubule density and workload (preload or afterload), which was only present when muscles were electrically stimulated. The in vivo heart at baseline is positioned on the rising phase of this curve because moderate increases in preload (mice with brief aortic shunt surgery, patients with mitral valve regurgitation) resulted in t-tubule growth. Moderate increases in afterload (mice and patients with mild aortic banding/stenosis) similarly increased t-tubule density. T-tubule proliferation was associated with larger Ca2+ transients, with upregulation of the L-type Ca2+ channel, Na+-Ca2+ exchanger, mechanosensors and regulators of t-tubule structure. By contrast, marked elevation of cardiac load in rodents and patients placed the heart on the declining phase of the t-tubule-load relationship, promoting heart failure progression. The dependence of t-tubule structure on preload and afterload thus enables both compensatory and maladaptive remodelling, in rodents and humans.
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Affiliation(s)
- Marianne Ruud
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- K.G. Jebsen Centre for Cardiac Research, University of Oslo, Oslo, Norway
| | - Michael Frisk
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- K.G. Jebsen Centre for Cardiac Research, University of Oslo, Oslo, Norway
| | - Arne Olav Melleby
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- K.G. Jebsen Centre for Cardiac Research, University of Oslo, Oslo, Norway
| | - Per Andreas Norseng
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- K.G. Jebsen Centre for Cardiac Research, University of Oslo, Oslo, Norway
| | - Belal A Mohamed
- Department of Cardiology and Pneumology, Georg-August-University, Göttingen, Germany
| | - Jia Li
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- K.G. Jebsen Centre for Cardiac Research, University of Oslo, Oslo, Norway
| | - Jan Magnus Aronsen
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Ingunn E Setterberg
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- K.G. Jebsen Centre for Cardiac Research, University of Oslo, Oslo, Norway
| | - Joanna Jakubiczka
- Department of Cardiology and Pneumology, Georg-August-University, Göttingen, Germany
| | - Isabelle van Hout
- Department of Physiology, School of Biomedical Sciences and HeartOtago, University of Otago, Dunedin, New Zealand
| | - Sean Coffey
- Department of Medicine and HeartOtago, Dunedin School of Medicine, Dunedin Hospital, Dunedin, New Zealand
| | - Xin Shen
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- K.G. Jebsen Centre for Cardiac Research, University of Oslo, Oslo, Norway
| | - Ståle Nygård
- Department of Informatics, University of Oslo, Oslo, Norway
| | - Ida G Lunde
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- K.G. Jebsen Centre for Cardiac Research, University of Oslo, Oslo, Norway
| | - Theis Tønnessen
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- K.G. Jebsen Centre for Cardiac Research, University of Oslo, Oslo, Norway
- Department of Cardiothoracic Surgery, Oslo University Hospital, Oslo, Norway
| | - Peter P Jones
- Department of Physiology, School of Biomedical Sciences and HeartOtago, University of Otago, Dunedin, New Zealand
| | - Ivar Sjaastad
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- K.G. Jebsen Centre for Cardiac Research, University of Oslo, Oslo, Norway
| | - Lars Gullestad
- Department of Cardiology, Oslo University Hospital, Oslo, Norway
| | - Karl Toischer
- Department of Cardiology and Pneumology, Georg-August-University, Göttingen, Germany
| | - Cristen P Dahl
- Department of Cardiology, Oslo University Hospital, Oslo, Norway
| | - Geir Christensen
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- K.G. Jebsen Centre for Cardiac Research, University of Oslo, Oslo, Norway
| | - William E Louch
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- K.G. Jebsen Centre for Cardiac Research, University of Oslo, Oslo, Norway
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11
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Garg A, Lavine KJ, Greenberg MJ. Assessing Cardiac Contractility From Single Molecules to Whole Hearts. JACC Basic Transl Sci 2024; 9:414-439. [PMID: 38559627 PMCID: PMC10978360 DOI: 10.1016/j.jacbts.2023.07.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 07/14/2023] [Accepted: 07/14/2023] [Indexed: 04/04/2024]
Abstract
Fundamentally, the heart needs to generate sufficient force and power output to dynamically meet the needs of the body. Cardiomyocytes contain specialized structures referred to as sarcomeres that power and regulate contraction. Disruption of sarcomeric function or regulation impairs contractility and leads to cardiomyopathies and heart failure. Basic, translational, and clinical studies have adapted numerous methods to assess cardiac contraction in a variety of pathophysiological contexts. These tools measure aspects of cardiac contraction at different scales ranging from single molecules to whole organisms. Moreover, these studies have revealed new pathogenic mechanisms of heart disease leading to the development of novel therapies targeting contractility. In this review, the authors explore the breadth of tools available for studying cardiac contractile function across scales, discuss their strengths and limitations, highlight new insights into cardiac physiology and pathophysiology, and describe how these insights can be harnessed for therapeutic candidate development and translational.
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Affiliation(s)
- Ankit Garg
- Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St. Louis, Missouri, USA
- Center for Cardiovascular Research, Division of Cardiology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Kory J. Lavine
- Center for Cardiovascular Research, Division of Cardiology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Michael J. Greenberg
- Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St. Louis, Missouri, USA
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12
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Wegener JW, Mitronova GY, ElShareif L, Quentin C, Belov V, Pochechueva T, Hasenfuss G, Ackermann L, Lehnart SE. A dual-targeted drug inhibits cardiac ryanodine receptor Ca 2+ leak but activates SERCA2a Ca 2+ uptake. Life Sci Alliance 2024; 7:e202302278. [PMID: 38012000 PMCID: PMC10681910 DOI: 10.26508/lsa.202302278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 11/16/2023] [Accepted: 11/17/2023] [Indexed: 11/29/2023] Open
Abstract
In the heart, genetic or acquired mishandling of diastolic [Ca2+] by ryanodine receptor type 2 (RyR2) overactivity correlates with risks of arrhythmia and sudden cardiac death. Strategies to avoid these risks include decrease of Ca2+ release by drugs modulating RyR2 activity or increase in Ca2+ uptake by drugs modulating SR Ca2+ ATPase (SERCA2a) activity. Here, we combine these strategies by developing experimental compounds that act simultaneously on both processes. Our screening efforts identified the new 1,4-benzothiazepine derivative GM1869 as a promising compound. Consequently, we comparatively studied the effects of the known RyR2 modulators Dantrolene and S36 together with GM1869 on RyR2 and SERCA2a activity in cardiomyocytes from wild type and arrhythmia-susceptible RyR2R2474S/+ mice by confocal live-cell imaging. All drugs reduced RyR2-mediated Ca2+ spark frequency but only GM1869 accelerated SERCA2a-mediated decay of Ca2+ transients in murine and human cardiomyocytes. Our data indicate that S36 and GM1869 are more suitable than dantrolene to directly modulate RyR2 activity, especially in RyR2R2474S/+ mice. Remarkably, GM1869 may represent a new dual-acting lead compound for maintenance of diastolic [Ca2+].
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Affiliation(s)
- Jörg W Wegener
- Department of Cardiology and Pulmonology, Heart Research Center Göttingen, University Medical Center of Göttingen (UMG), Göttingen, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Gyuzel Y Mitronova
- Department of NanoBiophotonics, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Lina ElShareif
- Department of Cardiology and Pulmonology, Heart Research Center Göttingen, University Medical Center of Göttingen (UMG), Göttingen, Germany
| | - Christine Quentin
- Department of NanoBiophotonics, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Vladimir Belov
- Department of NanoBiophotonics, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Tatiana Pochechueva
- Department of Cardiology and Pulmonology, Heart Research Center Göttingen, University Medical Center of Göttingen (UMG), Göttingen, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Gerd Hasenfuss
- Department of Cardiology and Pulmonology, Heart Research Center Göttingen, University Medical Center of Göttingen (UMG), Göttingen, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Lutz Ackermann
- Georg-August University of Göttingen, Institute of Organic and Biomolecular Chemistry, Göttingen, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Stephan E Lehnart
- Department of Cardiology and Pulmonology, Heart Research Center Göttingen, University Medical Center of Göttingen (UMG), Göttingen, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
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13
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Hall LG, Czeczor JK, Connor T, Botella J, De Jong KA, Renton MC, Genders AJ, Venardos K, Martin SD, Bond ST, Aston-Mourney K, Howlett KF, Campbell JA, Collier GR, Walder KR, McKenzie M, Ziemann M, McGee SL. Amyloid beta 42 alters cardiac metabolism and impairs cardiac function in male mice with obesity. Nat Commun 2024; 15:258. [PMID: 38225272 PMCID: PMC10789867 DOI: 10.1038/s41467-023-44520-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 12/15/2023] [Indexed: 01/17/2024] Open
Abstract
There are epidemiological associations between obesity and type 2 diabetes, cardiovascular disease and Alzheimer's disease. The role of amyloid beta 42 (Aβ42) in these diverse chronic diseases is obscure. Here we show that adipose tissue releases Aβ42, which is increased from adipose tissue of male mice with obesity and is associated with higher plasma Aβ42. Increasing circulating Aβ42 levels in male mice without obesity has no effect on systemic glucose homeostasis but has obesity-like effects on the heart, including reduced cardiac glucose clearance and impaired cardiac function. The closely related Aβ40 isoform does not have these same effects on the heart. Administration of an Aβ-neutralising antibody prevents obesity-induced cardiac dysfunction and hypertrophy. Furthermore, Aβ-neutralising antibody administration in established obesity prevents further deterioration of cardiac function. Multi-contrast transcriptomic analyses reveal that Aβ42 impacts pathways of mitochondrial metabolism and exposure of cardiomyocytes to Aβ42 inhibits mitochondrial complex I. These data reveal a role for systemic Aβ42 in the development of cardiac disease in obesity and suggest that therapeutics designed for Alzheimer's disease could be effective in combating obesity-induced heart failure.
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Affiliation(s)
- Liam G Hall
- Institute for Mental and Physical Health and Clinical Translation, Metabolic Research Unit, School of Medicine, Deakin University, Geelong, Australia
- Department of Cellular and Physiological Sciences, Faculty of Medicine, The University of British Columbia, Vancouver, Canada
| | - Juliane K Czeczor
- Institute for Mental and Physical Health and Clinical Translation, Metabolic Research Unit, School of Medicine, Deakin University, Geelong, Australia
- Becton Dickinson GmbH, Medical Affairs, 69126, Heidelberg, Germany
| | - Timothy Connor
- Institute for Mental and Physical Health and Clinical Translation, Metabolic Research Unit, School of Medicine, Deakin University, Geelong, Australia
| | - Javier Botella
- Institute for Mental and Physical Health and Clinical Translation, Metabolic Research Unit, School of Medicine, Deakin University, Geelong, Australia
| | - Kirstie A De Jong
- Institute for Mental and Physical Health and Clinical Translation, Metabolic Research Unit, School of Medicine, Deakin University, Geelong, Australia
- Institute of Experimental Cardiovascular Research, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Mark C Renton
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
| | - Amanda J Genders
- Institute for Mental and Physical Health and Clinical Translation, Metabolic Research Unit, School of Medicine, Deakin University, Geelong, Australia
- Department of Nutrition, Dietetics and Food, School of Clinical Sciences and Victorian Heart Institute, Monash University, Melbourne, Australia
| | - Kylie Venardos
- Institute for Mental and Physical Health and Clinical Translation, Metabolic Research Unit, School of Medicine, Deakin University, Geelong, Australia
| | - Sheree D Martin
- Institute for Mental and Physical Health and Clinical Translation, Metabolic Research Unit, School of Medicine, Deakin University, Geelong, Australia
| | - Simon T Bond
- Institute for Mental and Physical Health and Clinical Translation, Metabolic Research Unit, School of Medicine, Deakin University, Geelong, Australia
- Baker Heart and Diabetes Institute, Melbourne, Australia
| | - Kathryn Aston-Mourney
- Institute for Mental and Physical Health and Clinical Translation, Metabolic Research Unit, School of Medicine, Deakin University, Geelong, Australia
| | - Kirsten F Howlett
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
| | | | | | - Ken R Walder
- Institute for Mental and Physical Health and Clinical Translation, Metabolic Research Unit, School of Medicine, Deakin University, Geelong, Australia
| | - Matthew McKenzie
- School of Life and Environmental Science, Deakin University, Geelong, Australia
| | - Mark Ziemann
- School of Life and Environmental Science, Deakin University, Geelong, Australia
| | - Sean L McGee
- Institute for Mental and Physical Health and Clinical Translation, Metabolic Research Unit, School of Medicine, Deakin University, Geelong, Australia.
- Ambetex Pty Ltd, Geelong, Australia.
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14
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Batista Napotnik T, Kos B, Jarm T, Miklavčič D, O'Connor RP, Rems L. Genetically engineered HEK cells as a valuable tool for studying electroporation in excitable cells. Sci Rep 2024; 14:720. [PMID: 38184741 PMCID: PMC10771480 DOI: 10.1038/s41598-023-51073-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 12/30/2023] [Indexed: 01/08/2024] Open
Abstract
Electric pulses used in electroporation-based treatments have been shown to affect the excitability of muscle and neuronal cells. However, understanding the interplay between electroporation and electrophysiological response of excitable cells is complex, since both ion channel gating and electroporation depend on dynamic changes in the transmembrane voltage (TMV). In this study, a genetically engineered human embryonic kidney cells expressing NaV1.5 and Kir2.1, a minimal complementary channels required for excitability (named S-HEK), was characterized as a simple cell model used for studying the effects of electroporation in excitable cells. S-HEK cells and their non-excitable counterparts (NS-HEK) were exposed to 100 µs pulses of increasing electric field strength. Changes in TMV, plasma membrane permeability, and intracellular Ca2+ were monitored with fluorescence microscopy. We found that a very mild electroporation, undetectable with the classical propidium assay but associated with a transient increase in intracellular Ca2+, can already have a profound effect on excitability close to the electrostimulation threshold, as corroborated by multiscale computational modelling. These results are of great relevance for understanding the effects of pulse delivery on cell excitability observed in context of the rapidly developing cardiac pulsed field ablation as well as other electroporation-based treatments in excitable tissues.
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Affiliation(s)
- Tina Batista Napotnik
- University of Ljubljana, Faculty of Electrical Engineering, Tržaška Cesta 25, 1000, Ljubljana, Slovenia
| | - Bor Kos
- University of Ljubljana, Faculty of Electrical Engineering, Tržaška Cesta 25, 1000, Ljubljana, Slovenia
| | - Tomaž Jarm
- University of Ljubljana, Faculty of Electrical Engineering, Tržaška Cesta 25, 1000, Ljubljana, Slovenia
| | - Damijan Miklavčič
- University of Ljubljana, Faculty of Electrical Engineering, Tržaška Cesta 25, 1000, Ljubljana, Slovenia
| | - Rodney P O'Connor
- École des Mines de Saint-Étienne, Department of Bioelectronics, Georges Charpak Campus, Centre Microélectronique de Provence, 880 Route de Mimet, 13120, Gardanne, France
| | - Lea Rems
- University of Ljubljana, Faculty of Electrical Engineering, Tržaška Cesta 25, 1000, Ljubljana, Slovenia.
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15
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Chen X, Liu S, Han M, Long M, Li T, Hu L, Wang L, Huang W, Wu Y. Engineering Cardiac Tissue for Advanced Heart-On-A-Chip Platforms. Adv Healthc Mater 2024; 13:e2301338. [PMID: 37471526 DOI: 10.1002/adhm.202301338] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 07/17/2023] [Accepted: 07/17/2023] [Indexed: 07/22/2023]
Abstract
Cardiovascular disease is a major cause of mortality worldwide, and current preclinical models including traditional animal models and 2D cell culture models have limitations in replicating human native heart physiology and response to drugs. Heart-on-a-chip (HoC) technology offers a promising solution by combining the advantages of cardiac tissue engineering and microfluidics to create in vitro 3D cardiac models, which can mimic key aspects of human microphysiological systems and provide controllable microenvironments. Herein, recent advances in HoC technologies are introduced, including engineered cardiac microtissue construction in vitro, microfluidic chip fabrication, microenvironmental stimulation, and real-time feedback systems. The development of cardiac tissue engineering methods is focused for 3D microtissue preparation, advanced strategies for HoC fabrication, and current applications of these platforms. Major challenges in HoC fabrication are discussed and the perspective on the potential for these platforms is provided to advance research and clinical applications.
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Affiliation(s)
- Xinyi Chen
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Sitian Liu
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Mingying Han
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou, 510515, China
| | - Meng Long
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Ting Li
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Lanlan Hu
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Ling Wang
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou, 510515, China
| | - Wenhua Huang
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Yaobin Wu
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
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16
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Peng Y, Liao B, Zhou Y, Zeng W. Ginsenoside Rb2 improves heart failure by down-regulating miR-216a-5p to promote autophagy and inhibit apoptosis and oxidative stress. J Appl Biomed 2023; 21:180-192. [PMID: 38112457 DOI: 10.32725/jab.2023.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 12/05/2023] [Indexed: 12/21/2023] Open
Abstract
BACKGROUND Ginsenoside Rb2 is beneficial in cardiovascular disease treatment, yet its role in heart failure (HF) is obscure. This study aimed to investigate the effect and mechanism of ginsenoside Rb2 on HF. METHODS The left anterior descending branch-ligated HF rat model and oxygen-glucose deprivation/reoxygenation (OGD/R) H9c2 cell model were constructed. Ginsenoside Rb2 were applied for intervention. Heart function indexes, miR-216a-5p expression, autophagy, oxidative stress, apoptosis, cell morphology, and proliferation were detected to explore the effect of ginsenoside Rb2 on HF. Overexpression of miR-216a-5p was employed to explore the specific mechanism of ginsenoside Rb2 on HF. RESULTS Ginsenoside Rb2 improved the heart function of HF rats, including the reduction of heart rate, LVEDP, and heart weight/body weight ratio, and the increase of LVSP, +dP/dtmax, -dP/dtmax, LVEF, and LVFS. It also down-regulated miR-216a-5p expression and enhanced OGD/R-induced cardiomyocyte viability. Ginsenoside Rb2 up-regulated Bcl2, LC3B II/I, and Beclin1, and down-regulated Bax, Caspase-3, and p62 in the myocardium of HF rats and OGD/R-induced H9c2 cells. Moreover, ginsenoside Rb2 increased the levels of SOD and CAT, but decreased the levels of MDA and ROS in the myocardium of HF rats and OGD/R-induced H9c2 cells. However, overexpression of miR-216a-5p promoted the apoptosis and oxidative stress of cardiomyocytes and inhibited autophagy, thus reversing the therapeutic effect of ginsenoside Rb2 on HF in vivo and in vitro. CONCLUSION Ginsenoside Rb2 demonstrated potential as a therapeutic intervention for HF by enhancing autophagy and reducing apoptosis and oxidative stress through miR-216a-5p downregulation. Further research could explore its application in clinical trials and investigate the complex mechanism networks underlying its effects.
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Affiliation(s)
- You Peng
- The First Affiliated Hospital of Hunan Normal University, Hunan Provincial People's Hospital, Center of Geriatric, Changsha, Hunan, China
- Hunan Research Institute of Geriatrics, Changsha, Hunan, China
- Major Chronic Disease Research Center of Hunan Provincial Geriatric Institute, Changsha, Hunan, China
| | - Bin Liao
- The First Affiliated Hospital of Hunan Normal University, Hunan Provincial People's Hospital, Center of Geriatric, Changsha, Hunan, China
| | - Yan Zhou
- The First Affiliated Hospital of Hunan Normal University, Hunan Provincial People's Hospital, Center of Geriatric, Changsha, Hunan, China
| | - Wei Zeng
- The First Affiliated Hospital of Hunan Normal University, Hunan Provincial People's Hospital, Center of Geriatric, Changsha, Hunan, China
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17
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Costa ADS, Ghouri I, Johnston A, McGlynn K, McNair A, Bowman P, Malik N, Hurren J, Bingelis T, Dunne M, Smith GL, Kemi OJ. Electrically stimulated in vitro heart cell mimic of acute exercise reveals novel immediate cellular responses to exercise: Reduced contractility and metabolism, but maintained calcium cycling and increased myofilament calcium sensitivity. Cell Biochem Funct 2023; 41:1147-1161. [PMID: 37665041 PMCID: PMC10947300 DOI: 10.1002/cbf.3847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 08/14/2023] [Accepted: 08/21/2023] [Indexed: 09/05/2023]
Abstract
Cardiac cellular responses to acute exercise remain undescribed. We present a model for mimicking acute aerobic endurance exercise to freshly isolated cardiomyocytes by evoking exercise-like contractions over prolonged periods of time with trains of electrical twitch stimulations. We then investigated immediate contractile, Ca2+ , and metabolic responses to acute exercise in perfused freshly isolated left ventricular rat cardiomyocytes, after a matrix-design optimized protocol and induced a mimic for acute aerobic endurance exercise by trains of prolonged field twitch stimulations. Acute exercise decreased cardiomyocyte fractional shortening 50%-80% (p < .01). This was not explained by changes to intracellular Ca2+ handling (p > .05); rather, we observed a weak insignificant Ca2+ transient increase (p = .11), while myofilament Ca2+ sensitivity increased 20%-70% (p < .05). Acidic pH 6.8 decreased fractional shortening 20%-70% (p < .05) because of 20%-30% decreased Ca2+ transients (p < .05), but no difference occurred between control and acute exercise (p > .05). Addition of 1 or 10 mM La- increased fractional shortening in control (1 mM La- : no difference, p > .05; 10 mM La- : 20%-30%, p < .05) and acute exercise (1 mM La- : 40%-90%, p < .01; 10 mM La- : 50%-100%, p < .01) and rendered acute exercise indifferent from control (p > .05). Intrinsic autofluorescence showed a resting NADstate of 0.59 ± 0.04 and FADstate of 0.17 ± 0.03, while acute exercise decreased NADH/FAD ratio 8% (p < .01), indicating intracellular oxidation. In conclusion, we show a novel approach for studying immediate acute cardiomyocyte responses to aerobic endurance exercise. We find that acute exercise in cardiomyocytes decreases contraction, but Ca2+ handling and myofilament Ca2+ sensitivity compensate for this, while acidosis and reduced energy substrate and mitochondrial ATP generation explain this.
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Affiliation(s)
- Ana Da Silva Costa
- School of Cardiovascular and Metabolic Health, College of Medical, Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
- Graduate School, College of Medical, Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| | - Iffath Ghouri
- School of Cardiovascular and Metabolic Health, College of Medical, Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
- Wellcome Centre for Mitochondrial Research, Translational and Clinical Research Institute, Faculty of Medical SciencesNewcastle UniversityNewcastle upon TyneUK
| | - Alexander Johnston
- School of Cardiovascular and Metabolic Health, College of Medical, Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| | - Karen McGlynn
- School of Cardiovascular and Metabolic Health, College of Medical, Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| | - Andrew McNair
- School of Cardiovascular and Metabolic Health, College of Medical, Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| | - Peter Bowman
- School of Cardiovascular and Metabolic Health, College of Medical, Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| | - Natasha Malik
- School of Cardiovascular and Metabolic Health, College of Medical, Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| | - Johanne Hurren
- School of Cardiovascular and Metabolic Health, College of Medical, Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| | - Tomas Bingelis
- School of Cardiovascular and Metabolic Health, College of Medical, Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| | - Michael Dunne
- School of Cardiovascular and Metabolic Health, College of Medical, Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| | - Godfrey L. Smith
- School of Cardiovascular and Metabolic Health, College of Medical, Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| | - Ole J. Kemi
- School of Cardiovascular and Metabolic Health, College of Medical, Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
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18
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Sannino A, Velarte A, Otín A, Artigas JI, Oliván-Viguera A. A Flexible PDMS-Based Optical Biosensor for Stretch Monitoring in Cardiac Tissue Samples. SENSORS (BASEL, SWITZERLAND) 2023; 23:9454. [PMID: 38067829 PMCID: PMC10708643 DOI: 10.3390/s23239454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 11/17/2023] [Accepted: 11/23/2023] [Indexed: 12/18/2023]
Abstract
Cardiotoxicity, characterized by adverse impacts on normal heart function due to drug exposure, is a significant concern due to the potentially serious side effects associated with various pharmaceuticals. It is essential to detect the cardiotoxicity of a drug as early as possible in the testing phase of a medical composite. Therefore, there is a pressing need for more reliable in vitro models that accurately mimic the in vivo conditions of cardiac biopsies. In a functional beating heart, cardiac muscle cells are under the effect of static and cyclic stretches. It has been demonstrated that cultured cardiac biopsies can benefit from external mechanical loads that resemble the in vivo condition, increasing the probability of cardiotoxicity detection in the early testing stages. In this work, a biosensor is designed and fabricated to allow for stretch monitoring in biopsies and tissue cultures using an innovative sensing mechanism. The detection setup is based on a biocompatible, thin, flexible membrane-where the samples are attached-which is used as an optical waveguide to detect pressure-caused shape changes and stretches. Various prototypes have been fabricated with a cost-effective process, and different measurements have been carried out to experimentally validate the proposed measurement technique. From these evaluations, stretches of up to 1.5% have been measured, but the performed simulations point towards the possibility of expanding the considered technique up to 10-30% stretches.
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Affiliation(s)
- Andrea Sannino
- Group of Power Electronics and Microelectronics, Aragon Institute for Engineering Research, University of Zaragoza, 50018 Zaragoza, Spain; (A.O.); (J.I.A.)
| | - Antonio Velarte
- Biomedical Signal Interpretation and Computational Simulation Group, Aragon Institute for Engineering Research, Aragon Health Research Institute, University of Zaragoza, 50018 Zaragoza, Spain;
| | - Aránzazu Otín
- Group of Power Electronics and Microelectronics, Aragon Institute for Engineering Research, University of Zaragoza, 50018 Zaragoza, Spain; (A.O.); (J.I.A.)
| | - José Ignacio Artigas
- Group of Power Electronics and Microelectronics, Aragon Institute for Engineering Research, University of Zaragoza, 50018 Zaragoza, Spain; (A.O.); (J.I.A.)
| | - Aida Oliván-Viguera
- CIBER-BBN, Biomedical Signal Interpretation and Computational Simulation Group, Aragon Institute for Engineering Research, Aragon Health Research Institute, University of Zaragoza, 50018 Zaragoza, Spain;
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19
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Chen Y, Huang S, Cui Z, Sun X, Tang Y, Zhang H, Chen Z, Jiang R, Zhang W, Li X, Chen J, Liu B, Jiang Y, Wei K, Mao Z. Impaired end joining induces cardiac atrophy in a Hutchinson-Gilford progeria mouse model. Proc Natl Acad Sci U S A 2023; 120:e2309200120. [PMID: 37967221 PMCID: PMC10666128 DOI: 10.1073/pnas.2309200120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 10/14/2023] [Indexed: 11/17/2023] Open
Abstract
Patients with Hutchinson-Gilford progeria syndrome (HGPS) present with a number of premature aging phenotypes, including DNA damage accumulation, and many of them die of cardiovascular complications. Although vascular pathologies have been reported, whether HGPS patients exhibit cardiac dysfunction and its underlying mechanism is unclear, rendering limited options for treating HGPS-related cardiomyopathy. In this study, we reported a cardiac atrophy phenotype in the LmnaG609G/G609G mice (hereafter, HGPS mice). Using a GFP-based reporter system, we demonstrated that the efficiency of nonhomologous end joining (NHEJ) declined by 50% in HGPS cardiomyocytes in vivo, due to the attenuated interaction between γH2AX and Progerin, the causative factor of HGPS. As a result, genomic instability in cardiomyocytes led to an increase of CHK2 protein level, promoting the LKB1-AMPKα interaction and AMPKα phosphorylation, which further led to the activation of FOXO3A-mediated transcription of atrophy-related genes. Moreover, inhibiting AMPK enlarged cardiomyocyte sizes both in vitro and in vivo. Most importantly, our proof-of-concept study indicated that isoproterenol treatment significantly reduced AMPKα and FOXO3A phosphorylation in the heart, attenuated the atrophy phenotype, and extended the mean lifespan of HGPS mice by ~21%, implying that targeting cardiac atrophy may be an approach to HGPS treatment.
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Affiliation(s)
- Yu Chen
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, China
- Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, China
| | - Shiqi Huang
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Institute of Stem Cell Research and Clinical Translation, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, China
| | - Zhen Cui
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, China
- Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, China
| | - Xiaoxiang Sun
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, China
- Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, China
| | - Yansong Tang
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Institute of Stem Cell Research and Clinical Translation, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, China
| | - Hongjie Zhang
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Institute of Stem Cell Research and Clinical Translation, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, China
| | - Zhixi Chen
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, China
- Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, China
| | - Rui Jiang
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Institute of Stem Cell Research and Clinical Translation, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, China
| | - Weina Zhang
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, China
- Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, China
| | - Xue Li
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Institute of Stem Cell Research and Clinical Translation, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, China
| | - Jiayu Chen
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, China
- Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, China
| | - Baohua Liu
- National Engineering Research Center for Biotechnology (Shenzhen), Carson International Cancer Center, Medical Research Center, Shenzhen University Health Science Center, Shenzhen518055, China
| | - Ying Jiang
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, China
- Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, China
| | - Ke Wei
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Institute of Stem Cell Research and Clinical Translation, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, China
| | - Zhiyong Mao
- Shanghai Key Laboratory of Maternal Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, China
- Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai200092, China
- Tsingtao Advanced Research Institute, Tongji University, Qingdao266071, China
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20
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Pittman LA, Whittaker P, Milne ML, Chung CS. Collagenase treatment reduces the anisotropy of ultrasonic backscatter in rat myocardium by reducing collagen crosslinks. Physiol Rep 2023; 11:e15849. [PMID: 37960992 PMCID: PMC10643982 DOI: 10.14814/phy2.15849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/19/2023] [Accepted: 10/19/2023] [Indexed: 11/15/2023] Open
Abstract
Dysregulation of collagen deposition, degradation, and crosslinking in the heart occur in response to increased physiological stress. Collagen content has been associated with ultrasonic backscatter (brightness), and we have shown that the anisotropy of backscatter can be used to measure myofiber alignment, that is, variation in the brightness of a left ventricular short-axis ultrasound. This study investigated collagen's role in anisotropy of ultrasonic backscatter; female Sprague-Dawley rat hearts were treated with a collagenase-containing solution, for either 10 or 30 min, or control solution for 30 min. Serial ultrasound images were acquired at 2.5-min intervals throughout collagenase treatment. Ultrasonic backscatter was assessed from anterior and posterior walls, where collagen fibrils are predominately aligned perpendicular to the angle of insonification, and the lateral and septal walls, where collagen is predominately aligned parallel to the angle of insonification. Collagenase digestion reduced backscatter anisotropy within the myocardium. Collagen remains present in the myocardium throughout collagenase treatment, but crosslinking is altered within 10 min. These data suggest that crosslinking of collagen modulates the anisotropy of ultrasonic backscatter. An Anisotropy Index, derived from differences in backscatter from parallel and perpendicularly aligned fibers, may provide a noninvasive index to monitor the progression and state of myocardial fibrosis.
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Affiliation(s)
| | | | - Michelle L. Milne
- Department of PhysicsSt Mary's College of MarylandSt Mary's CityMarylandUSA
| | - Charles S. Chung
- Department of PhysiologyWayne State UniversityDetroitMichiganUSA
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21
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Kim J, Shanmugasundaram A, Kim DS, Jeong YJ, Kanade PP, Kim ES, Lee BK, Lee DW. Quantitative assessment of cardiomyocyte mechanobiology through high-throughput cantilever-based functional well plate systems. Analyst 2023; 148:5133-5143. [PMID: 37695027 DOI: 10.1039/d3an01286g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Proper regulation of the in vitro cell culture environment is essential for disease modelling and drug toxicity screening. The main limitation of well plates used for cell culture is that they cannot accurately maintain energy sources and compounds needed during cell growth. Herein, to understand the importance of perfusion in cardiomyocyte culture, changes in contractile force and heart rate during cardiomyocyte growth are systematically investigated, and the results are compared with those of a perfusion-free system. The proposed perfusion system consists of a Peltier refrigerator, a peristaltic pump, and a functional well plate. A functional well plate with 12 wells is made through injection moulding, with two tubes integrated in the cover for each well to continuously circulate the culture medium. The contractile force of cardiomyocytes growing on the cantilever surface is analysed through changes in cantilever displacement. The maturation of cardiomyocytes is evaluated through fluorescence staining and western blot; cardiomyocytes cultured in the perfusion system show greater maturity than those cultured in a manually replaced culture medium. The pH of the culture medium manually replaced at intervals of 3 days decreases to 6.8, resulting in an abnormal heartbeat, while cardiomyocytes cultured in the perfusion system maintained at pH 7.4 show improved contractility and a uniform heart rate. Two well-known ion channel blockers, verapamil and quinidine, are used to measure changes in the contractile force of cardiomyocytes from the two systems. Cardiomyocytes in the perfusion system show greater stability during drug toxicity screening, proving that the perfusion system provides a better environment for cell growth.
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Affiliation(s)
- Jongyun Kim
- MEMS and Nanotechnology Laboratory, School of Mechanical Engineering, Chonnam National University, Gwangju 61186, Republic of Korea.
- Advanced Medical Device Research Center for Cardiovascular Disease, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Arunkumar Shanmugasundaram
- MEMS and Nanotechnology Laboratory, School of Mechanical Engineering, Chonnam National University, Gwangju 61186, Republic of Korea.
- Advanced Medical Device Research Center for Cardiovascular Disease, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Dong-Su Kim
- MEMS and Nanotechnology Laboratory, School of Mechanical Engineering, Chonnam National University, Gwangju 61186, Republic of Korea.
- Advanced Medical Device Research Center for Cardiovascular Disease, Chonnam National University, Gwangju 61186, Republic of Korea
- Green Energy & Nano Technology R&D Group, Korea Institute of Industrial Technology (KITECH), Gwangju, 61012, Republic of Korea
| | - Yun-Jin Jeong
- MEMS and Nanotechnology Laboratory, School of Mechanical Engineering, Chonnam National University, Gwangju 61186, Republic of Korea.
- Advanced Medical Device Research Center for Cardiovascular Disease, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Pooja P Kanade
- MEMS and Nanotechnology Laboratory, School of Mechanical Engineering, Chonnam National University, Gwangju 61186, Republic of Korea.
- Advanced Medical Device Research Center for Cardiovascular Disease, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Eung-Sam Kim
- Department of Biological Sciences, Chonnam National University, Gwangju, 61186, Republic of Korea
- Center for Next-Generation Sensor Research and Development, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Bong-Kee Lee
- MEMS and Nanotechnology Laboratory, School of Mechanical Engineering, Chonnam National University, Gwangju 61186, Republic of Korea.
- Center for Next-Generation Sensor Research and Development, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Dong-Weon Lee
- MEMS and Nanotechnology Laboratory, School of Mechanical Engineering, Chonnam National University, Gwangju 61186, Republic of Korea.
- Center for Next-Generation Sensor Research and Development, Chonnam National University, Gwangju 61186, Republic of Korea
- Advanced Medical Device Research Center for Cardiovascular Disease, Chonnam National University, Gwangju 61186, Republic of Korea
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22
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Bottermann K, Spychala A, Eliacik A, Amin E, Moussavi-Torshizi SE, Klöcker N, Gödecke A, Heinen A. Extracellular flux analysis in intact cardiac tissue slices-A novel tool to investigate cardiac substrate metabolism in mouse myocardium. Acta Physiol (Oxf) 2023; 239:e14004. [PMID: 37227741 DOI: 10.1111/apha.14004] [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: 02/06/2023] [Revised: 05/17/2023] [Accepted: 05/21/2023] [Indexed: 05/26/2023]
Abstract
AIM Cardiac pathologies are accompanied by alterations in substrate metabolism, and extracellular flux analysis is a standard tool to investigate metabolic disturbances, especially in immortalized cell lines. However, preparations of primary cells, such as adult cardiomyocytes require enzymatic dissociation and cultivation affecting metabolism. Therefore, we developed a flux analyzer-based method for the assessment of substrate metabolism in intact vibratome-sliced mouse heart tissue. METHODS Oxygen consumption rates were determined using a Seahorse XFe24-analyzer and "islet capture plates." We demonstrate that tissue slices are suitable for extracellular flux analysis and metabolize both free fatty acids (FFA) and glucose/glutamine. Functional integrity of tissue slices was proven by optical mapping-based assessment of action potentials. In a proof-of-principle approach, the sensitivity of the method was tested by analyzing substrate metabolism in the remote myocardium after myocardial infarction (I/R). RESULTS Here, I/R increased uncoupled OCR compared with sham animals indicating a stimulated metabolic capacity. This increase was caused by a higher glucose/glutamine metabolism, whereas FFA oxidation was unchanged. CONCLUSION In conclusion, we describe a novel method to analyze cardiac substrate metabolism in intact cardiac tissue slices by extracellular flux analysis. The proof-of-principle experiment demonstrated that this approach has a sensitivity allowing the investigation of pathophysiologically relevant disturbances in cardiac substrate metabolism.
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Affiliation(s)
- Katharina Bottermann
- Institute for Pharmacology, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - Andre Spychala
- Institute for Cardiovascular Physiology, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - Asena Eliacik
- Institute for Cardiovascular Physiology, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - Ehsan Amin
- Institute of Neural und Sensory Physiology, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - S Erfan Moussavi-Torshizi
- Institute of Neural und Sensory Physiology, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - Nikolaj Klöcker
- Institute of Neural und Sensory Physiology, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - Axel Gödecke
- Institute for Cardiovascular Physiology, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - Andre Heinen
- Institute for Cardiovascular Physiology, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
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23
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Serio S, Pagiatakis C, Musolino E, Felicetta A, Carullo P, Laura Frances J, Papa L, Rozzi G, Salvarani N, Miragoli M, Gornati R, Bernardini G, Condorelli G, Papait R. Cardiac Aging Is Promoted by Pseudohypoxia Increasing p300-Induced Glycolysis. Circ Res 2023; 133:687-703. [PMID: 37681309 DOI: 10.1161/circresaha.123.322676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 08/30/2023] [Indexed: 09/09/2023]
Abstract
BACKGROUND Heart failure is typical in the elderly. Metabolic remodeling of cardiomyocytes underlies inexorable deterioration of cardiac function with aging: glycolysis increases at the expense of oxidative phosphorylation, causing an energy deficit contributing to impaired contractility. Better understanding of the mechanisms of this metabolic switching could be critical for reversing the condition. METHODS To investigate the role of 3 histone modifications (H3K27ac, H3K27me3, and H3K4me1) in the metabolic remodeling occurring in the aging heart, we cross-compared epigenomic, transcriptomic, and metabolomic data from mice of different ages. In addition, the role of the transcriptional coactivator p300 (E1A-associated binding protein p300)/CBP (CREB binding protein) in cardiac aging was investigated using a specific inhibitor of this histone acetyltransferase enzyme. RESULTS We report a set of species-conserved enhancers associated with transcriptional changes underlying age-related metabolic remodeling in cardiomyocytes. Activation of the enhancer region of Hk2-a key glycolysis pathway gene-was fostered in old age-onset mouse heart by pseudohypoxia, wherein hypoxia-related genes are expressed under normal O2 levels, via increased activity of P300/CBP. Pharmacological inhibition of this transcriptional coactivator before the onset of cardiac aging led to a more aerobic, less glycolytic, metabolic state, improved heart contractility, and overall blunting of cardiac decline. CONCLUSIONS Taken together, our results suggest how epigenetic dysregulation of glycolysis pathway enhancers could potentially be targeted to treat heart failure in the elderly.
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Affiliation(s)
- Simone Serio
- Department of Cardiovascular Medicine, IRCCS Humanitas Research Hospital, via Manzoni 56, 20089 Rozzano (MI), Italy (S.S., C.P., A.F., P.C., J.L.F., L.P., G.R., N.S., M.M., G.C., R.P.)
- Department of Biomedical Sciences, Humanitas University, via Rita Levi Montalcini 4, 20072 Pieve Emanuele, Milan, Italy (S.S., G.C.)
| | - Christina Pagiatakis
- Department of Cardiovascular Medicine, IRCCS Humanitas Research Hospital, via Manzoni 56, 20089 Rozzano (MI), Italy (S.S., C.P., A.F., P.C., J.L.F., L.P., G.R., N.S., M.M., G.C., R.P.)
- Department of Biotechnology and Life Sciences, University of Insubria, via J.H. Dunant 3, 21100, Varese, Italy (C.P., E.M., R.G., G.B., R.P.)
| | - Elettra Musolino
- Department of Biotechnology and Life Sciences, University of Insubria, via J.H. Dunant 3, 21100, Varese, Italy (C.P., E.M., R.G., G.B., R.P.)
| | - Arianna Felicetta
- Department of Cardiovascular Medicine, IRCCS Humanitas Research Hospital, via Manzoni 56, 20089 Rozzano (MI), Italy (S.S., C.P., A.F., P.C., J.L.F., L.P., G.R., N.S., M.M., G.C., R.P.)
| | - Pierluigi Carullo
- Department of Cardiovascular Medicine, IRCCS Humanitas Research Hospital, via Manzoni 56, 20089 Rozzano (MI), Italy (S.S., C.P., A.F., P.C., J.L.F., L.P., G.R., N.S., M.M., G.C., R.P.)
| | - Javier Laura Frances
- Department of Cardiovascular Medicine, IRCCS Humanitas Research Hospital, via Manzoni 56, 20089 Rozzano (MI), Italy (S.S., C.P., A.F., P.C., J.L.F., L.P., G.R., N.S., M.M., G.C., R.P.)
| | - Laura Papa
- Department of Cardiovascular Medicine, IRCCS Humanitas Research Hospital, via Manzoni 56, 20089 Rozzano (MI), Italy (S.S., C.P., A.F., P.C., J.L.F., L.P., G.R., N.S., M.M., G.C., R.P.)
| | - Giacomo Rozzi
- Department of Cardiovascular Medicine, IRCCS Humanitas Research Hospital, via Manzoni 56, 20089 Rozzano (MI), Italy (S.S., C.P., A.F., P.C., J.L.F., L.P., G.R., N.S., M.M., G.C., R.P.)
| | - Nicolò Salvarani
- Department of Cardiovascular Medicine, IRCCS Humanitas Research Hospital, via Manzoni 56, 20089 Rozzano (MI), Italy (S.S., C.P., A.F., P.C., J.L.F., L.P., G.R., N.S., M.M., G.C., R.P.)
- Institute of Genetic and Biomedical Research, UOS of Milan, National Research Council of Italy (N.S.)
| | - Michele Miragoli
- Department of Cardiovascular Medicine, IRCCS Humanitas Research Hospital, via Manzoni 56, 20089 Rozzano (MI), Italy (S.S., C.P., A.F., P.C., J.L.F., L.P., G.R., N.S., M.M., G.C., R.P.)
- Department of Medicine and Surgery, University of Parma, Italy (M.M.)
| | - Rosalba Gornati
- Department of Biotechnology and Life Sciences, University of Insubria, via J.H. Dunant 3, 21100, Varese, Italy (C.P., E.M., R.G., G.B., R.P.)
| | - Giovanni Bernardini
- Department of Biotechnology and Life Sciences, University of Insubria, via J.H. Dunant 3, 21100, Varese, Italy (C.P., E.M., R.G., G.B., R.P.)
| | - Gianluigi Condorelli
- Department of Cardiovascular Medicine, IRCCS Humanitas Research Hospital, via Manzoni 56, 20089 Rozzano (MI), Italy (S.S., C.P., A.F., P.C., J.L.F., L.P., G.R., N.S., M.M., G.C., R.P.)
- Department of Biomedical Sciences, Humanitas University, via Rita Levi Montalcini 4, 20072 Pieve Emanuele, Milan, Italy (S.S., G.C.)
| | - Roberto Papait
- Department of Cardiovascular Medicine, IRCCS Humanitas Research Hospital, via Manzoni 56, 20089 Rozzano (MI), Italy (S.S., C.P., A.F., P.C., J.L.F., L.P., G.R., N.S., M.M., G.C., R.P.)
- Department of Biotechnology and Life Sciences, University of Insubria, via J.H. Dunant 3, 21100, Varese, Italy (C.P., E.M., R.G., G.B., R.P.)
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Golubeva VA, Dorn LE, Gilbert CJ, Rabolli CP, Das AS, Wanasinghe VS, Veress R, Terentyev D, Accornero F. Loss of YTHDF2 Alters the Expression of m 6A-Modified Myzap and Causes Adverse Cardiac Remodeling. JACC Basic Transl Sci 2023; 8:1180-1194. [PMID: 37791304 PMCID: PMC10543918 DOI: 10.1016/j.jacbts.2023.03.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 03/06/2023] [Accepted: 03/07/2023] [Indexed: 10/05/2023]
Abstract
How post-transcriptional regulation of gene expression, such as through N6-methyladenosine (m6A) messenger RNA methylation, impacts heart function is not well understood. We found that loss of the m6A binding protein YTHDF2 in cardiomyocytes of adult mice drove cardiac dysfunction. By proteomics, we found myocardial zonula adherens protein (MYZAP) within the top up-regulated proteins in knockout cardiomyocytes. We further demonstrated that YTHDF2 binds m6A-modified Myzap messenger RNA and controls its stability. Cardiac overexpression of MYZAP has been associated with cardiomyopathy. Thus, our findings provide an important new mechanism for the YTHDF2-dependent regulation of this target and therein its novel role in the maintenance of cardiac homeostasis.
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Affiliation(s)
- Volha A. Golubeva
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Lisa E. Dorn
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Christopher J. Gilbert
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Charles P. Rabolli
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Anindhya Sundar Das
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Vishmi S. Wanasinghe
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Roland Veress
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Dmitry Terentyev
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Federica Accornero
- Department of Physiology and Cell Biology, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio, USA
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25
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Algül S, Schuldt M, Manders E, Jansen V, Schlossarek S, de Goeij-de Haas R, Henneman AA, Piersma SR, Jimenez CR, Michels M, Carrier L, Helmes M, van der Velden J, Kuster DWD. EGFR/IGF1R Signaling Modulates Relaxation in Hypertrophic Cardiomyopathy. Circ Res 2023; 133:387-399. [PMID: 37477020 DOI: 10.1161/circresaha.122.322133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 07/14/2023] [Indexed: 07/22/2023]
Abstract
BACKGROUND Diastolic dysfunction is central to diseases such as heart failure with preserved ejection fraction and hypertrophic cardiomyopathy (HCM). However, therapies that improve cardiac relaxation are scarce, partly due to a limited understanding of modulators of cardiomyocyte relaxation. We hypothesized that cardiac relaxation is regulated by multiple unidentified proteins and that dysregulation of kinases contributes to impaired relaxation in patients with HCM. METHODS We optimized and increased the throughput of unloaded shortening measurements and screened a kinase inhibitor library in isolated adult cardiomyocytes from wild-type mice. One hundred fifty-seven kinase inhibitors were screened. To assess which kinases are dysregulated in patients with HCM and could contribute to impaired relaxation, we performed a tyrosine and global phosphoproteomics screen and integrative inferred kinase activity analysis using HCM patient myocardium. Identified hits from these 2 data sets were validated in cardiomyocytes from a homozygous MYBPC3c.2373insG HCM mouse model. RESULTS Screening of 157 kinase inhibitors in wild-type (N=33) cardiomyocytes (n=24 563) resulted in the identification of 17 positive inotropes and 21 positive lusitropes, almost all of them novel. The positive lusitropes formed 3 clusters: cell cycle, EGFR (epidermal growth factor receptor)/IGF1R (insulin-like growth factor 1 receptor), and a small Akt (α-serine/threonine protein kinase) signaling cluster. By performing phosphoproteomic profiling of HCM patient myocardium (N=24 HCM and N=8 donors), we demonstrated increased activation of 6 of 8 proteins from the EGFR/IGFR1 cluster in HCM. We validated compounds from this cluster in mouse HCM (N=12) cardiomyocytes (n=2023). Three compounds from this cluster were able to improve relaxation in HCM cardiomyocytes. CONCLUSIONS We showed the feasibility of screening for functional modulators of cardiomyocyte relaxation and contraction, parameters that we observed to be modulated by kinases involved in EGFR/IGF1R, Akt, cell cycle signaling, and FoxO (forkhead box class O) signaling, respectively. Integrating the screening data with phosphoproteomics analysis in HCM patient tissue indicated that inhibition of EGFR/IGF1R signaling is a promising target for treating impaired relaxation in HCM.
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Affiliation(s)
- Sila Algül
- Department of Physiology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Cardiovascular Sciences, the Netherlands (S.A., M.S., E.M., V.J., M.H., J.v.d.V., D.W.D.K.)
| | - Maike Schuldt
- Department of Physiology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Cardiovascular Sciences, the Netherlands (S.A., M.S., E.M., V.J., M.H., J.v.d.V., D.W.D.K.)
| | - Emmy Manders
- Department of Physiology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Cardiovascular Sciences, the Netherlands (S.A., M.S., E.M., V.J., M.H., J.v.d.V., D.W.D.K.)
- CytoCypher BV, Wageningen, the Netherlands (E.M., M.H.)
| | - Valentijn Jansen
- Department of Physiology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Cardiovascular Sciences, the Netherlands (S.A., M.S., E.M., V.J., M.H., J.v.d.V., D.W.D.K.)
| | - Saskia Schlossarek
- Institute of Experimental Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Germany (S.S., L.C.)
- German Centre for Cardiovascular Research, Partner Site Hamburg/Kiel/Lübeck, Germany (S.S., L.C.)
| | - Richard de Goeij-de Haas
- Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam UMC and Vrije Universiteit Amsterdam, the Netherlands (R.d.G.-d.H., A.A.H., S.R.P., C.R.J.)
| | - Alex A Henneman
- Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam UMC and Vrije Universiteit Amsterdam, the Netherlands (R.d.G.-d.H., A.A.H., S.R.P., C.R.J.)
| | - Sander R Piersma
- Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam UMC and Vrije Universiteit Amsterdam, the Netherlands (R.d.G.-d.H., A.A.H., S.R.P., C.R.J.)
| | - Connie R Jimenez
- Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam UMC and Vrije Universiteit Amsterdam, the Netherlands (R.d.G.-d.H., A.A.H., S.R.P., C.R.J.)
| | - Michelle Michels
- Department of Cardiology, Thoraxcenter, Erasmus Medical Center Rotterdam, the Netherlands (M.M.)
| | - Lucie Carrier
- Institute of Experimental Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Germany (S.S., L.C.)
- German Centre for Cardiovascular Research, Partner Site Hamburg/Kiel/Lübeck, Germany (S.S., L.C.)
| | - Michiel Helmes
- Department of Physiology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Cardiovascular Sciences, the Netherlands (S.A., M.S., E.M., V.J., M.H., J.v.d.V., D.W.D.K.)
- CytoCypher BV, Wageningen, the Netherlands (E.M., M.H.)
| | - Jolanda van der Velden
- Department of Physiology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Cardiovascular Sciences, the Netherlands (S.A., M.S., E.M., V.J., M.H., J.v.d.V., D.W.D.K.)
| | - Diederik W D Kuster
- Department of Physiology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Cardiovascular Sciences, the Netherlands (S.A., M.S., E.M., V.J., M.H., J.v.d.V., D.W.D.K.)
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Mao H, Angelini A, Li S, Wang G, Li L, Patterson C, Pi X, Xie L. CRAT links cholesterol metabolism to innate immune responses in the heart. Nat Metab 2023; 5:1382-1394. [PMID: 37443356 PMCID: PMC10685850 DOI: 10.1038/s42255-023-00844-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 06/13/2023] [Indexed: 07/15/2023]
Abstract
Chronic inflammation is associated with increased risk and poor prognosis of heart failure; however, the precise mechanism that provokes sustained inflammation in the failing heart remains elusive. Here we report that depletion of carnitine acetyltransferase (CRAT) promotes cholesterol catabolism through bile acid synthesis pathway in cardiomyocytes. Intracellular accumulation of bile acid or intermediate, 7α-hydroxyl-3-oxo-4-cholestenoic acid, induces mitochondrial DNA stress and triggers cGAS-STING-dependent type I interferon responses. Furthermore, type I interferon responses elicited by CRAT deficiency substantially increase AIM2 expression and AIM2-dependent inflammasome activation. Genetic deletion of cardiomyocyte CRAT in mice of both sexes results in myocardial inflammation and dilated cardiomyopathy, which can be reversed by combined depletion of caspase-1, cGAS or AIM2. Collectively, we identify a mechanism by which cardiac energy metabolism, cholesterol homeostasis and cardiomyocyte-intrinsic innate immune responses are interconnected via a CRAT-mediated bile acid synthesis pathway, which contributes to chronic myocardial inflammation and heart failure progression.
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Affiliation(s)
- Hua Mao
- Department of Medicine, Section of Cardiovascular Research, Baylor College of Medicine, Houston, TX, USA
- Cardiovascular Research Institute, Baylor College of Medicine, Houston, TX, USA
| | - Aude Angelini
- Department of Medicine, Section of Cardiovascular Research, Baylor College of Medicine, Houston, TX, USA
- Cardiovascular Research Institute, Baylor College of Medicine, Houston, TX, USA
| | - Shengyu Li
- Center for Cardiovascular Regeneration, Houston Methodist Research Institute, Houston, TX, USA
- Department of Cardiothoracic Surgery, Weill Cornell Medicine, Cornell University, New York, NY, USA
| | - Guangyu Wang
- Center for Cardiovascular Regeneration, Houston Methodist Research Institute, Houston, TX, USA
- Department of Cardiothoracic Surgery, Weill Cornell Medicine, Cornell University, New York, NY, USA
| | - Luge Li
- Department of Medicine, Section of Cardiovascular Research, Baylor College of Medicine, Houston, TX, USA
- Cardiovascular Research Institute, Baylor College of Medicine, Houston, TX, USA
| | - Cam Patterson
- University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Xinchun Pi
- Department of Medicine, Section of Cardiovascular Research, Baylor College of Medicine, Houston, TX, USA
- Cardiovascular Research Institute, Baylor College of Medicine, Houston, TX, USA
| | - Liang Xie
- Department of Medicine, Section of Cardiovascular Research, Baylor College of Medicine, Houston, TX, USA.
- Cardiovascular Research Institute, Baylor College of Medicine, Houston, TX, USA.
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27
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Coelho PM, Simmer LM, da Silva DS, Dos Santos MC, Kitagawa RR, Pezzin MF, Correa CR, Leite JG, Leopoldo AS, Lima-Leopoldo AP. Type 2 diabetes mellitus in obesity promotes prolongation of cardiomyocyte contractile function, impaired Ca 2+ handling and protein carbonylation damage. J Diabetes Complications 2023; 37:108559. [PMID: 37480704 DOI: 10.1016/j.jdiacomp.2023.108559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 06/26/2023] [Accepted: 07/15/2023] [Indexed: 07/24/2023]
Abstract
AIMS To investigate whether the obesity associated to T2DM presented cardiomyocyte myocardial contractility dysfunction due to damage in Ca2+ handling, concomitantly with increased biomarkers of oxidative stress. METHODS Male Wistar rats were randomized into two groups: control (C): fed with standard diet; and obese (Ob) that fed a saturated high-fat. After the characterization of obesity (12 weeks), the Ob animals were submitted to T2DM induction with a single dose of intraperitoneal (i.p.) injection of streptozotocin (30 mg/kg). Thus, remained Ob rats that were characterized as to the presence (T2DMOb; n = 8) and/or absence (Ob; n = 10) of T2DM. Cardiac remodeling was measured by post-mortem morphological, isolated cardiomyocyte contractile function, as well as by intracellular Ca2+-handling analysis. RESULTS T2DMOb presented a significant reduction of all fat pads, total body fat and adiposity index. T2DMOb group presented a significant increase in protein carbonylation and superoxide dismutase (SOD) activity, respectively. T2DMOb promoted elevations in fractional shortening (15.6 %) and time to 50 % shortening (5.8 %), respectively. Time to 50 % Ca2+ decay was prolonged in T2DMOb, suggesting a possible impairment in Ca2+recapture and/or removal. CONCLUSION Type 2 diabetes mellitus in obesity promotes prolongation of cardiomyocyte contractile function with protein carbonylation damage and impaired Ca2+ handling.
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Affiliation(s)
- Priscila M Coelho
- Postgraduate Program in Nutrition and Health, Center of Health Sciences, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Luísa M Simmer
- Center of Health Sciences, Department of Integrated Health Education, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Daniel S da Silva
- Department of Sports, Center of Physical Education and Sports, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Matheus C Dos Santos
- Postgraduate Program in Physiological Sciences, Center of Health Sciences, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Rodrigo R Kitagawa
- Center of Health Sciences, Department of Pharmaceutical Sciences, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Mateus F Pezzin
- Center of Health Sciences, Department of Pharmaceutical Sciences, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Camila R Correa
- Medical School, Botucatu, São Paulo State University (UNESP), Brazil
| | - Jéssica G Leite
- Medical School, Botucatu, São Paulo State University (UNESP), Brazil
| | - André S Leopoldo
- Postgraduate Program in Nutrition and Health, Center of Health Sciences, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil; Department of Sports, Center of Physical Education and Sports, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil; Postgraduate Program in Physiological Sciences, Center of Health Sciences, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Ana Paula Lima-Leopoldo
- Postgraduate Program in Nutrition and Health, Center of Health Sciences, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil; Department of Sports, Center of Physical Education and Sports, Federal University of Espírito Santo, Vitória, Espírito Santo, Brazil.
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Watanabe M, Yano T, Sato T, Umetsu A, Higashide M, Furuhashi M, Ohguro H. mTOR Inhibitors Modulate the Physical Properties of 3D Spheroids Derived from H9c2 Cells. Int J Mol Sci 2023; 24:11459. [PMID: 37511214 PMCID: PMC10380298 DOI: 10.3390/ijms241411459] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 07/03/2023] [Accepted: 07/12/2023] [Indexed: 07/30/2023] Open
Abstract
To establish an appropriate in vitro model for the local environment of cardiomyocytes, three-dimensional (3D) spheroids derived from H9c2 cardiomyoblasts were prepared, and their morphological, biophysical phase contrast and biochemical characteristics were evaluated. The 3D H9c2 spheroids were successfully obtained, the sizes of the spheroids decreased, and they became stiffer during 3-4 days. In contrast to the cell multiplication that occurs in conventional 2D planar cell cultures, the 3D H9c2 spheroids developed into a more mature form without any cell multiplication being detected. qPCR analyses of the 3D H9c2 spheroids indicated that the production of collagen4 (COL4) and fibronectin (FN), connexin43 (CX43), β-catenin, N-cadherin, STAT3, and HIF1 molecules had increased and that the production of COL6 and α-smooth muscle actin (α-SMA) molecules had decreased as compared to 2D cultured cells. In addition, treatment with rapamycin (Rapa), an mTOR complex (mTORC) 1 inhibitor, and Torin 1, an mTORC1/2 inhibitor, resulted in significantly decreased cell densities of the 2D cultured H9c2 cells, but the size and stiffness of the H9c2 cells within the 3D spheroids were reduced with the gene expressions of several of the above several factors being reduced. The metabolic responses to mTOR modulators were also different between the 2D and 3D cultures. These results suggest that as unique aspects of the local environments of the 3D spheroids, the spontaneous expression of GJ-related molecules and hypoxia within the core may be associated with their maturation, suggesting that this may become a useful in vitro model that replicates the local environment of cardiomyocytes.
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Affiliation(s)
- Megumi Watanabe
- Department of Ophthalmology, School of Medicine, Sapporo Medical University, Sapporo 060-8556, Japan; (M.W.); (A.U.); (M.H.)
| | - Toshiyuki Yano
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University, Sapporo 060-8556, Japan; (T.Y.); (T.S.); (M.F.)
| | - Tatsuya Sato
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University, Sapporo 060-8556, Japan; (T.Y.); (T.S.); (M.F.)
- Department of Cellular Physiology and Signal Transduction, Sapporo Medical University, Sapporo 060-8556, Japan
| | - Araya Umetsu
- Department of Ophthalmology, School of Medicine, Sapporo Medical University, Sapporo 060-8556, Japan; (M.W.); (A.U.); (M.H.)
| | - Megumi Higashide
- Department of Ophthalmology, School of Medicine, Sapporo Medical University, Sapporo 060-8556, Japan; (M.W.); (A.U.); (M.H.)
| | - Masato Furuhashi
- Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo Medical University, Sapporo 060-8556, Japan; (T.Y.); (T.S.); (M.F.)
| | - Hiroshi Ohguro
- Department of Ophthalmology, School of Medicine, Sapporo Medical University, Sapporo 060-8556, Japan; (M.W.); (A.U.); (M.H.)
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Velez Rueda AJ, Gonano LA, Smith AG, Parisi G, Fornasari MS, Sommese LM. CardIAP: calcium transients confocal image analysis tool. FRONTIERS IN BIOINFORMATICS 2023; 3:1137815. [PMID: 37521316 PMCID: PMC10381969 DOI: 10.3389/fbinf.2023.1137815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 06/23/2023] [Indexed: 08/01/2023] Open
Abstract
One of the main topics of cardiovascular research is the study of calcium (Ca2+) handling, as even small changes in Ca2+ concentration can alter cell functionality (Bers, Annu Rev Physiol, 2014, 76, 107-127). Ionic calcium (Ca2+) plays the role of a second messenger in eukaryotic cells, associated with cellular functions such as cell cycle regulation, transport, motility, gene expression, and regulation. The use of fluorometric techniques in isolated cells loaded with Ca2+-sensitive fluorescent probes allows quantitative measurement of dynamic events occurring in living, functioning cells. The Cardiomyocytes Images Analyzer Python (CardIAP) application addresses the need to analyze and retrieve information from confocal microscopy images systematically, accurately, and rapidly. Here we present CardIAP, an open-source tool developed entirely in Python, freely available and useable in an interactive web application. In addition, CardIAP can be used as a standalone Python library and freely installed via PIP, making it easy to integrate into biomedical imaging pipelines. The images that can be generated in the study of the heart have the particularity of requiring both spatial and temporal analysis. CardIAP aims to open the field of cardiomyocytes and intact hearts image processing. The improvement in the extraction of information from the images will allow optimizing the usage of resources and animals. With CardIAP, users can run the analysis to both, the complete image, and portions of it in an easy way, and replicate it on a series of images. This analysis provides users with information on the spatial and temporal changes in calcium releases and characterizes them. The web application also allows users to extract calcium dynamics data in downloadable tables, simplifying the calculation of alternation and discordance indices and their classification. CardIAP aims to provide a tool that could assist biomedical researchers in studying the underlying mechanisms of anomalous calcium release phenomena.
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Affiliation(s)
- Ana Julia Velez Rueda
- Departamento de Ciencia y Tecnología, CONICET, Universidad Nacional de Quilmes, Bernal, Argentina
| | - Luis Alberto Gonano
- Centro de Investigaciones Cardiovasculares, Facultad de Medicina, CONICET, Universidad Nacional de La Plata, La Plata, Argentina
| | - Agustín García Smith
- Departamento de Ciencia y Tecnología, CONICET, Universidad Nacional de Quilmes, Bernal, Argentina
| | - Gustavo Parisi
- Departamento de Ciencia y Tecnología, CONICET, Universidad Nacional de Quilmes, Bernal, Argentina
| | - María Silvina Fornasari
- Departamento de Ciencia y Tecnología, CONICET, Universidad Nacional de Quilmes, Bernal, Argentina
| | - Leandro Matías Sommese
- Departamento de Ciencia y Tecnología, CONICET, Universidad Nacional de Quilmes, Bernal, Argentina
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Aalikhani M, Alikhani M, Khajeniazi S, Khosravi A, Bazi Z, Kianmehr A. Positive effect of miR-2392 on fibroblast to cardiomyocyte-like cell fate transition: an in silico and in vitro study. Gene 2023; 879:147598. [PMID: 37393060 DOI: 10.1016/j.gene.2023.147598] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 06/13/2023] [Accepted: 06/27/2023] [Indexed: 07/03/2023]
Abstract
INTRODUCTION Somatic cell fate transition is now gained great importance in tissue regeneration. Currently, research is focused on heart tissue regeneration by reprogramming diverse cells into cardiomyocyte-like cells. Here, we examined the possible effect of miRNAs on the transdifferentiation of fibroblasts into cardiomyocyte-like cells. METHODS First heart-specific miRNAs were identified by comparing the gene expression profiles of heart tissue to other body tissues using bioinformatic techniques. After identifying heart-specific miRNAs, their cellular and molecular functions were studied using the miRWalk and miRBase databases. Then the candidate miRNA was cloned into a lentiviral vector. Following, human dermal fibroblasts were cultured and treated with compounds forskolin, valproic acid, and CHIR99021. After 24 h, the lentivector harboring miRNA gene was transfected into the cells to initiate the transdifferentiation process. Finally, after a two-week treatment period, the efficiency of transdifferentiation was examined by inspecting the appearance of the cells and measuring the expression levels of cardiac genes and proteins using RT-qPCR and immunocytochemistry techniques. RESULTS Nine miRNAs were identified with higher expression in the heart. The miR-2392 was nominated as the candidate miRNA due to its function and specific expression in the heart. This miRNA has a direct connection with genes involved in cell growth and differentiation; e.g., MAPK and Wnt signaling pathways. According to in vitro results cardiac genes and proteins demonstrated an increase in expression in the fibroblasts that simultaneously received the three chemicals and miR-2392. CONCLUSION Considering the ability of miR-2392 to induce the expression of cardiac genes and proteins in fibroblast cells, it can induce fibroblasts to differentiate into cardiomyocyte-like cells. Therefore, miR-2392 could be further optimized for cardiomyocyte regeneration, tissue repair, and drug design studies.
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Affiliation(s)
- Mahdi Aalikhani
- Department of Medical Biotechnology, Faculty of Advanced Medical Technologies, Golestan University of Medical Sciences, Gorgan, Iran
| | - Mehrdad Alikhani
- Department of Cardiology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Safoura Khajeniazi
- Department of Biochemistry, Faculty of Medicine, Golestan University of Medical Sciences, Gorgan, Iran; Stem Cell Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Ayyoob Khosravi
- Stem Cell Research Center, Golestan University of Medical Sciences, Gorgan, Iran; Department of Molecular Medicine, Faculty of Advanced Medical Technologies, Golestan University of Medical Sciences, Gorgan, Iran
| | - Zahra Bazi
- Department of Medical Biotechnology, Faculty of Advanced Medical Technologies, Golestan University of Medical Sciences, Gorgan, Iran; Stem Cell Research Center, Golestan University of Medical Sciences, Gorgan, Iran.
| | - Anvarsadat Kianmehr
- Department of Medical Biotechnology, Faculty of Advanced Medical Technologies, Golestan University of Medical Sciences, Gorgan, Iran; Stem Cell Research Center, Golestan University of Medical Sciences, Gorgan, Iran.
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Sikder K, Phillips E, Zhong Z, Wang N, Saunders J, Mothy D, Kossenkov A, Schneider T, Nichtova Z, Csordas G, Margulies KB, Choi JC. Perinuclear damage from nuclear envelope deterioration elicits stress responses that contribute to LMNA cardiomyopathy. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.14.528563. [PMID: 36824975 PMCID: PMC9949050 DOI: 10.1101/2023.02.14.528563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Mutations in the LMNA gene encoding nuclear lamins A/C cause a diverse array of tissue-selective diseases, with the heart being the most commonly affected organ. Despite progress in understanding the molecular perturbations emanating from LMNA mutations, an integrative understanding of the pathogenesis leading to cardiac dysfunction remains elusive. Using a novel cell-type specific Lmna deletion mouse model capable of translatome profiling, we found that cardiomyocyte-specific Lmna deletion in adult mice led to rapid cardiomyopathy with pathological remodeling. Prior to the onset of cardiac dysfunction, lamin A/C-depleted cardiomyocytes displayed nuclear envelope deterioration, golgi dilation/fragmentation, and CREB3-mediated golgi stress activation. Translatome profiling identified upregulation of Med25, a transcriptional co-factor that can selectively dampen UPR axes. Autophagy is disrupted in the hearts of these mice, which can be recapitulated by disrupting the golgi or inducing nuclear damage by increased matrix stiffness. Systemic administration of pharmacological modulators of autophagy or ER stress significantly improved the cardiac function. These studies support a hypothesis wherein stress responses emanating from the perinuclear space contribute to the development of LMNA cardiomyopathy. Teaser Interplay of stress responses underlying the development of LMNA cardiomyopathy.
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32
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Zhang C, Sun Y, Chen Z. An Efficient and Reproducible Method for the Isolation and Culture of Primary Cardiomyocytes from Adult Zebrafish. Zebrafish 2023. [PMID: 37262192 DOI: 10.1089/zeb.2023.0015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023] Open
Abstract
Zebrafish is a popular animal model in regeneration studies due to their ability to regenerate the heart. Primary cardiomyocytes could be an alternative tool for studying the intrinsic mechanisms of cardiovascular disease in vitro. Thus, our objective is to develop an efficient protocol to isolate primary cardiomyocytes from zebrafish hearts. Low concentration of digestive enzyme (0.5 mg/mL collagenase type II) was utilized in our protocol to obtain single-cell suspension. The ventricles were fragmented, mechanically pipetted, and constantly shaken to ensure adequate contact between the tissues and the enzyme. Preplating the cell suspension onto culture plates for 2 h helped remove cardiac fibroblasts. The purity of isolated cells was validated by flow cytometry analysis of transgenic zebrafish with cardiomyocyte-specific expression of enhanced green fluorescent protein (EGFP) or endothelial cell-specific expression of mCherry. Quantitative real-time PCR analysis revealed a high level of the purity, with cardiac fibroblasts, endothelial cells, and epicardial cell markers scarcely detected in the purified cells. Altogether, this study established a reproducible protocol for isolating primary cardiomyocytes with high purity and activity from adult zebrafish hearts that can be cultured in vitro for up to 4 weeks. This protocol provides a valuable tool for studying the intrinsic mechanisms of cardiovascular disease in vitro using primary cardiomyocytes.
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Affiliation(s)
- Chunyan Zhang
- Department of Cardiovascular Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yanyi Sun
- Department of Cardiovascular Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhenyue Chen
- Department of Cardiovascular Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Martinez VR, Martins Lima A, Stergiopulos N, Velez Rueda JO, Islas MS, Griera M, Calleros L, Rodriguez Puyol M, Jaquenod de Giusti C, Portiansky EL, Ferrer EG, De Giusti V, Williams PAM. Effect of the structural modification of Candesartan with Zinc on hypertension and left ventricular hypertrophy. Eur J Pharmacol 2023; 946:175654. [PMID: 36930883 DOI: 10.1016/j.ejphar.2023.175654] [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: 10/31/2022] [Revised: 02/25/2023] [Accepted: 03/09/2023] [Indexed: 03/17/2023]
Abstract
Hypertension is the most common cause of left ventricular hypertrophy, contributing to heart failure progression. Candesartan (Cand) is an angiotensin receptor antagonist widely used for hypertension treatment. Structural modifications were previously performed by our group using Zinc (ZnCand) as a strategy for improving its pharmacological properties. The measurements showed that ZnCand exerts a stronger interaction with the angiotensin II receptor, type 1 (AT1 receptor), reducing oxidative stress and intracellular calcium flux, a mechanism implied in cell contraction. These results were accompanied by the reduction of the contractile capacity of mesangial cells. In vivo experiments showed that the complex causes a significant decrease in systolic blood pressure after 8 weeks of treatment in spontaneously hypertensive rats (SHR). The reduction of heart hypertrophy was evidenced by echocardiography, the histologic cross-sectional area of cardiomyocytes, collagen content, the B-type natriuretic peptide (BNP) marker and connective tissue growth factor (CTGF) and the matrix metalloproteinase 2 (MMP-2) expression. Besides, the complex restored the redox status. In this study, we demonstrated that the complexation with Zn(II) improves the antihypertensive and cardiac effects of the parental drug.
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Affiliation(s)
- Valeria R Martinez
- CEQUINOR-CONICET-CICPBA-UNLP, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv. 120 N◦ 1465, 1900, La Plata, Argentina; CIC-CONICET-UNLP, Facultad de Médicas, Universidad Nacional de La Plata, 60 y 120, 1900, La Plata, Argentina
| | - Augusto Martins Lima
- Laboratory of Hemodynamics & Cardiovascular Technology (LHTC), Institute of Bioengineering (Bâtiment MED), Station 9, École Polytechnique Fédérale de Lausanne, 1015, Lausanne, Switzerland
| | - Nikolaous Stergiopulos
- Laboratory of Hemodynamics & Cardiovascular Technology (LHTC), Institute of Bioengineering (Bâtiment MED), Station 9, École Polytechnique Fédérale de Lausanne, 1015, Lausanne, Switzerland
| | - Jorge O Velez Rueda
- CIC-CONICET-UNLP, Facultad de Médicas, Universidad Nacional de La Plata, 60 y 120, 1900, La Plata, Argentina
| | - Maria S Islas
- Departamento de Química y Bioquímica, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, 7600, Mar del Plata, Argentina
| | - Mercedes Griera
- Departamento de Fisiología, Universidad de Alcalá, Campus Universitario, 28871, Alcalá de Henares, Madrid, Spain
| | - Laura Calleros
- Departamento de Fisiología, Universidad de Alcalá, Campus Universitario, 28871, Alcalá de Henares, Madrid, Spain
| | - Manuel Rodriguez Puyol
- Departamento de Fisiología, Universidad de Alcalá, Campus Universitario, 28871, Alcalá de Henares, Madrid, Spain
| | - Carolina Jaquenod de Giusti
- CIC-CONICET-UNLP, Facultad de Médicas, Universidad Nacional de La Plata, 60 y 120, 1900, La Plata, Argentina
| | - Enrique L Portiansky
- Laboratorio de Análisis de Imágenes-UNLP, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, 60 y 118, 1900, La Plata, Argentina
| | - Evelina G Ferrer
- CEQUINOR-CONICET-CICPBA-UNLP, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv. 120 N◦ 1465, 1900, La Plata, Argentina
| | - Verónica De Giusti
- CIC-CONICET-UNLP, Facultad de Médicas, Universidad Nacional de La Plata, 60 y 120, 1900, La Plata, Argentina.
| | - Patricia A M Williams
- CEQUINOR-CONICET-CICPBA-UNLP, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv. 120 N◦ 1465, 1900, La Plata, Argentina.
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Vaparanta K, Jokilammi A, Paatero I, Merilahti JA, Heliste J, Hemanthakumar KA, Kivelä R, Alitalo K, Taimen P, Elenius K. STAT5b is a key effector of NRG-1/ERBB4-mediated myocardial growth. EMBO Rep 2023; 24:e56689. [PMID: 37009825 PMCID: PMC10157316 DOI: 10.15252/embr.202256689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 03/07/2023] [Accepted: 03/10/2023] [Indexed: 04/04/2023] Open
Abstract
The growth factor Neuregulin-1 (NRG-1) regulates myocardial growth and is currently under clinical investigation as a treatment for heart failure. Here, we demonstrate in several in vitro and in vivo models that STAT5b mediates NRG-1/EBBB4-stimulated cardiomyocyte growth. Genetic and chemical disruption of the NRG-1/ERBB4 pathway reduces STAT5b activation and transcription of STAT5b target genes Igf1, Myc, and Cdkn1a in murine cardiomyocytes. Loss of Stat5b also ablates NRG-1-induced cardiomyocyte hypertrophy. Dynamin-2 is shown to control the cell surface localization of ERBB4 and chemical inhibition of Dynamin-2 downregulates STAT5b activation and cardiomyocyte hypertrophy. In zebrafish embryos, Stat5 is activated during NRG-1-induced hyperplastic myocardial growth, and chemical inhibition of the Nrg-1/Erbb4 pathway or Dynamin-2 leads to loss of myocardial growth and Stat5 activation. Moreover, CRISPR/Cas9-mediated knockdown of stat5b results in reduced myocardial growth and cardiac function. Finally, the NRG-1/ERBB4/STAT5b signaling pathway is differentially regulated at mRNA and protein levels in the myocardium of patients with pathological cardiac hypertrophy as compared to control human subjects, consistent with a role of the NRG-1/ERBB4/STAT5b pathway in myocardial growth.
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Affiliation(s)
- Katri Vaparanta
- Turku Bioscience CentreUniversity of Turku and Åbo Akademi UniversityTurkuFinland
- Medicity Research LaboratoriesUniversity of TurkuTurkuFinland
- Institute of BiomedicineUniversity of TurkuTurkuFinland
| | - Anne Jokilammi
- Turku Bioscience CentreUniversity of Turku and Åbo Akademi UniversityTurkuFinland
- Medicity Research LaboratoriesUniversity of TurkuTurkuFinland
- Institute of BiomedicineUniversity of TurkuTurkuFinland
| | - Ilkka Paatero
- Turku Bioscience CentreUniversity of Turku and Åbo Akademi UniversityTurkuFinland
| | - Johannes A Merilahti
- Turku Bioscience CentreUniversity of Turku and Åbo Akademi UniversityTurkuFinland
| | - Juho Heliste
- Turku Bioscience CentreUniversity of Turku and Åbo Akademi UniversityTurkuFinland
- Medicity Research LaboratoriesUniversity of TurkuTurkuFinland
- Institute of BiomedicineUniversity of TurkuTurkuFinland
| | - Karthik Amudhala Hemanthakumar
- Wihuri Research InstituteHelsinkiFinland
- Translational Cancer Biology Program, Research Programs Unit, Faculty of MedicineUniversity of HelsinkiHelsinkiFinland
| | - Riikka Kivelä
- Wihuri Research InstituteHelsinkiFinland
- Translational Cancer Biology Program, Research Programs Unit, Faculty of MedicineUniversity of HelsinkiHelsinkiFinland
- Faculty of Sport and Health SciencesUniversity of JyväskyläJyväskyläFinland
| | - Kari Alitalo
- Wihuri Research InstituteHelsinkiFinland
- Translational Cancer Biology Program, Research Programs Unit, Faculty of MedicineUniversity of HelsinkiHelsinkiFinland
| | - Pekka Taimen
- Institute of Biomedicine and FICAN West Cancer CentreUniversity of TurkuTurkuFinland
- Department of PathologyTurku University HospitalTurkuFinland
| | - Klaus Elenius
- Turku Bioscience CentreUniversity of Turku and Åbo Akademi UniversityTurkuFinland
- Medicity Research LaboratoriesUniversity of TurkuTurkuFinland
- Institute of BiomedicineUniversity of TurkuTurkuFinland
- Department of OncologyTurku University HospitalTurkuFinland
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Tsui H, van Kampen SJ, Han SJ, Meraviglia V, van Ham WB, Casini S, van der Kraak P, Vink A, Yin X, Mayr M, Bossu A, Marchal GA, Monshouwer-Kloots J, Eding J, Versteeg D, de Ruiter H, Bezstarosti K, Groeneweg J, Klaasen SJ, van Laake LW, Demmers JAA, Kops GJPL, Mummery CL, van Veen TAB, Remme CA, Bellin M, van Rooij E. Desmosomal protein degradation as an underlying cause of arrhythmogenic cardiomyopathy. Sci Transl Med 2023; 15:eadd4248. [PMID: 36947592 DOI: 10.1126/scitranslmed.add4248] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 03/01/2023] [Indexed: 03/24/2023]
Abstract
Arrhythmogenic cardiomyopathy (ACM) is an inherited progressive cardiac disease. Many patients with ACM harbor mutations in desmosomal genes, predominantly in plakophilin-2 (PKP2). Although the genetic basis of ACM is well characterized, the underlying disease-driving mechanisms remain unresolved. Explanted hearts from patients with ACM had less PKP2 compared with healthy hearts, which correlated with reduced expression of desmosomal and adherens junction (AJ) proteins. These proteins were also disorganized in areas of fibrotic remodeling. In vitro data from human-induced pluripotent stem cell-derived cardiomyocytes and microtissues carrying the heterozygous PKP2 c.2013delC pathogenic mutation also displayed impaired contractility. Knockin mice carrying the equivalent heterozygous Pkp2 c.1755delA mutation recapitulated changes in desmosomal and AJ proteins and displayed cardiac dysfunction and fibrosis with age. Global proteomics analysis of 4-month-old heterozygous Pkp2 c.1755delA hearts indicated involvement of the ubiquitin-proteasome system (UPS) in ACM pathogenesis. Inhibition of the UPS in mutant mice increased area composita proteins and improved calcium dynamics in isolated cardiomyocytes. Additional proteomics analyses identified lysine ubiquitination sites on the desmosomal proteins, which were more ubiquitinated in mutant mice. In summary, we show that a plakophilin-2 mutation can lead to decreased desmosomal and AJ protein expression through a UPS-dependent mechanism, which preceded cardiac remodeling. These findings suggest that targeting protein degradation and improving desmosomal protein stability may be a potential therapeutic strategy for the treatment of ACM.
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Affiliation(s)
- Hoyee Tsui
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, 3584 CT, Netherlands
| | - Sebastiaan Johannes van Kampen
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, 3584 CT, Netherlands
| | - Su Ji Han
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, 3584 CT, Netherlands
| | - Viviana Meraviglia
- Department of Anatomy and Embryology, University Medical Center, Leiden, 2333 ZA, Netherlands
| | - Willem B van Ham
- Department of Medical Physiology, University Medical Center Utrecht, 3584 CM, Netherlands
| | - Simona Casini
- Department of Clinical and Experimental Cardiology, University Medical Center Amsterdam, 1105 AZ, Netherlands
| | - Petra van der Kraak
- Department of Pathology, University Medical Center Utrecht, 3584 CX, Netherlands
| | - Aryan Vink
- Department of Pathology, University Medical Center Utrecht, 3584 CX, Netherlands
| | - Xiaoke Yin
- James Black Centre, King's College, University of London, WC2R 2LS London, UK
| | - Manuel Mayr
- James Black Centre, King's College, University of London, WC2R 2LS London, UK
| | - Alexandre Bossu
- Department of Medical Physiology, University Medical Center Utrecht, 3584 CM, Netherlands
| | - Gerard A Marchal
- Department of Clinical and Experimental Cardiology, University Medical Center Amsterdam, 1105 AZ, Netherlands
| | - Jantine Monshouwer-Kloots
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, 3584 CT, Netherlands
| | - Joep Eding
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, 3584 CT, Netherlands
| | - Danielle Versteeg
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, 3584 CT, Netherlands
| | - Hesther de Ruiter
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, 3584 CT, Netherlands
| | - Karel Bezstarosti
- Proteomics Center, Erasmus Medical Center Rotterdam, 3015 CN, Netherlands
| | - Judith Groeneweg
- Department of Cardiology, University Medical Center Utrecht, 3584 CX, Netherlands
| | - Sjoerd J Klaasen
- Oncode Institute, Hubrecht Institute, Royal Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, 3584 CT, Netherlands
| | - Linda W van Laake
- Department of Cardiology, University Medical Center Utrecht, 3584 CX, Netherlands
| | - Jeroen A A Demmers
- Proteomics Center, Erasmus Medical Center Rotterdam, 3015 CN, Netherlands
| | - Geert J P L Kops
- Oncode Institute, Hubrecht Institute, Royal Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, 3584 CT, Netherlands
| | - Christine L Mummery
- Department of Anatomy and Embryology, University Medical Center, Leiden, 2333 ZA, Netherlands
| | - Toon A B van Veen
- Department of Medical Physiology, University Medical Center Utrecht, 3584 CM, Netherlands
| | - Carol Ann Remme
- Department of Clinical and Experimental Cardiology, University Medical Center Amsterdam, 1105 AZ, Netherlands
| | - Milena Bellin
- Department of Anatomy and Embryology, University Medical Center, Leiden, 2333 ZA, Netherlands
| | - Eva van Rooij
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, 3584 CT, Netherlands
- Department of Cardiology, University Medical Center Utrecht, 3584 CX, Netherlands
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36
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Yang R, Zhang X, Zhang Y, Wang Y, Li M, Meng Y, Wang J, Wen X, Yu J, Chang P. Grpel2 maintains cardiomyocyte survival in diabetic cardiomyopathy through DLST-mediated mitochondrial dysfunction: a proof-of-concept study. J Transl Med 2023; 21:200. [PMID: 36927450 PMCID: PMC10021968 DOI: 10.1186/s12967-023-04049-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 03/08/2023] [Indexed: 03/18/2023] Open
Abstract
BACKGROUND Diabetic cardiomyopathy (DCM) has been considered as a major threat to health in individuals with diabetes. GrpE-like 2 (Grpel2), a nucleotide exchange factor, has been shown to regulate mitochondrial import process to maintain mitochondrial homeostasis. However, the effect and mechanism of Grpel2 in DCM remain unknown. METHODS The streptozotocin (STZ)-induced DCM mice model and high glucose (HG)-treated cardiomyocytes were established. Overexpression of cardiac-specific Grpel2 was performed by intramyocardial injection of adeno-associated virus serotype 9 (AAV9). Bioinformatics analysis, co-immunoprecipitation (co-IP), transcriptomics profiling and functional experiments were used to explore molecular mechanism of Grpel2 in DCM. RESULTS Here, we found that Grpel2 was decreased in DCM induced by STZ. Overexpression of cardiac-specific Grpel2 alleviated cardiac dysfunction and structural remodeling in DCM. In both diabetic hearts and HG-treated cardiomyocytes, Grpel2 overexpression attenuated apoptosis and mitochondrial dysfunction, including decreased mitochondrial ROS production, increased mitochondrial respiratory capacities and increased mitochondrial membrane potential. Mechanistically, Grpel2 interacted with dihydrolipoyl succinyltransferase (DLST), which positively mediated the import process of DLST into mitochondria under HG conditions. Furthermore, the protective effects of Grpel2 overexpression on mitochondrial function and cell survival were blocked by siRNA knockdown of DLST. Moreover, Nr2f6 bond to the Grpel2 promoter region and positively regulated its transcription. CONCLUSION Our study provides for the first time evidence that Grpel2 overexpression exerts a protective effect against mitochondrial dysfunction and apoptosis in DCM by maintaining the import of DLST into mitochondria. These findings suggest that targeting Grpel2 might be a promising therapeutic strategy for the treatment of patients with DCM.
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Affiliation(s)
- Rongjin Yang
- Department of Cardiology, The Second Affiliated Hospital of Xi'an Medical University, Xi'an, 710038, Shaanxi, China.,Department of Cardiology, The 989th Hospital of the People's Liberation Army Joint Logistic Support Force, 2 Huaxia West Road, Luoyang, 471000, China
| | - Xiaomeng Zhang
- Department of Cardiology, Xijing Hospital, Air Force Medical University, 169 Changle West Road, Xi'an, 710032, China
| | - Yunyun Zhang
- Department of Cardiology, Xijing Hospital, Air Force Medical University, 169 Changle West Road, Xi'an, 710032, China
| | - Yingfan Wang
- Department of Cardiology, The Second Affiliated Hospital of Xi'an Medical University, Xi'an, 710038, Shaanxi, China
| | - Man Li
- Department of Cardiology, The Second Affiliated Hospital of Xi'an Medical University, Xi'an, 710038, Shaanxi, China
| | - Yuancui Meng
- Department of Cardiology, The Second Affiliated Hospital of Xi'an Medical University, Xi'an, 710038, Shaanxi, China
| | - Jianbang Wang
- Department of Cardiology, The Second Affiliated Hospital of Xi'an Medical University, Xi'an, 710038, Shaanxi, China
| | - Xue Wen
- Department of Cardiology, The 989th Hospital of the People's Liberation Army Joint Logistic Support Force, 2 Huaxia West Road, Luoyang, 471000, China
| | - Jun Yu
- Clinical Experimental Center, The Affiliated Xi'an International Medical Center Hospital, Northwest University, Xi'an, 710100, China.
| | - Pan Chang
- Department of Cardiology, The Second Affiliated Hospital of Xi'an Medical University, Xi'an, 710038, Shaanxi, China.
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Bukowski MJ, Cavanaugh B, Abbo A, Chung CS. Mechanical Control of Relaxation using Intact Cardiac Trabeculae. J Vis Exp 2023:10.3791/64879. [PMID: 36876939 PMCID: PMC10690804 DOI: 10.3791/64879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023] Open
Abstract
Diastolic dysfunction is a common phenotype across cardiovascular disease presentations. In addition to elevated cardiac stiffness (elevated left ventricular end-diastolic pressure), impaired cardiac relaxation is a key diagnostic indicator of diastolic dysfunction. While relaxation requires the removal of cytosolic calcium and deactivation of sarcomeric thin filaments, targeting such mechanisms has yet to provide effective treatments. Mechanical mechanisms, such as blood pressure (i.e., afterload), have been theorized to modify relaxation. Recently, we showed that modifying the strain rate of a stretch, not afterload, was both necessary and sufficient to modify the subsequent relaxation rate of myocardial tissue. The strain rate dependence of relaxation, called the mechanical control of relaxation (MCR), can be assessed using intact cardiac trabeculae. This protocol describes the preparation of a small animal model, experimental system and chamber, isolation of the heart and subsequent isolation of a trabecula, preparation of the experimental chamber, and experimental and analysis protocols. Evidence for lengthening strains in the intact heart suggests that MCR might provide new arenas for better characterization of pharmacological treatments, along with a method to assess myofilament kinetics in intact muscles. Therefore, studying the MCR may elucidate a path to novel approaches and new frontiers in the treatment of heart failure.
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Affiliation(s)
| | - Benjamin Cavanaugh
- School of Medicine, Michigan State University-Macomb and Department of Physiology, Wayne State University
| | - Anita Abbo
- Department of Physiology, Wayne State University
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38
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Paz-Artigas L, Montero-Calle P, Iglesias-García O, Mazo MM, Ochoa I, Ciriza J. Current approaches for the recreation of cardiac ischaemic environment in vitro. Int J Pharm 2023; 632:122589. [PMID: 36623742 DOI: 10.1016/j.ijpharm.2023.122589] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 12/14/2022] [Accepted: 01/04/2023] [Indexed: 01/09/2023]
Abstract
Myocardial ischaemia is one of the leading dead causes worldwide. Although animal experiments have historically provided a wealth of information, animal models are time and money consuming, and they usually miss typical human patient's characteristics associated with ischemia prevalence, including aging and comorbidities. Generating reliable in vitro models that recapitulate the human cardiac microenvironment during an ischaemic event can boost the development of new drugs and therapeutic strategies, as well as our understanding of the underlying cellular and molecular events, helping the optimization of therapeutic approaches prior to animal and clinical testing. Although several culture systems have emerged for the recreation of cardiac physiology, mimicking the features of an ischaemic heart tissue in vitro is challenging and certain aspects of the disease process remain poorly addressed. Here, current in vitro cardiac culture systems used for modelling cardiac ischaemia, from self-aggregated organoids to scaffold-based constructs and heart-on-chip platforms are described. The advantages of these models to recreate ischaemic hallmarks such as oxygen gradients, pathological alterations of mechanical strength or fibrotic responses are highlighted. The new models represent a step forward to be considered, but unfortunately, we are far away from recapitulating all complexity of the clinical situations.
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Affiliation(s)
- Laura Paz-Artigas
- Tissue Microenvironment (TME) Lab, Aragón Institute of Engineering Research (I3A), University of Zaragoza, 50018 Zaragoza, Spain; Institute for Health Research Aragón (IIS Aragón), 50009 Zaragoza, Spain
| | - Pilar Montero-Calle
- Regenerative Medicine Program, Cima Universidad de Navarra, and Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona, Spain
| | - Olalla Iglesias-García
- Regenerative Medicine Program, Cima Universidad de Navarra, and Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona, Spain
| | - Manuel M Mazo
- Regenerative Medicine Program, Cima Universidad de Navarra, and Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona, Spain; Hematology and Cell Therapy, Clínica Universidad de Navarra, and Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona, Spain
| | - Ignacio Ochoa
- Tissue Microenvironment (TME) Lab, Aragón Institute of Engineering Research (I3A), University of Zaragoza, 50018 Zaragoza, Spain; Institute for Health Research Aragón (IIS Aragón), 50009 Zaragoza, Spain; CIBER-BBN, ISCIII, Zaragoza, Spain.
| | - Jesús Ciriza
- Tissue Microenvironment (TME) Lab, Aragón Institute of Engineering Research (I3A), University of Zaragoza, 50018 Zaragoza, Spain; Institute for Health Research Aragón (IIS Aragón), 50009 Zaragoza, Spain; CIBER-BBN, ISCIII, Zaragoza, Spain.
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39
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Haustein R, Trogisch FA, Keles M, Hille S, Fuhrmann M, Weinzierl N, Hemanna S, Thackeray J, Dou Y, Zwadlo C, Froese N, Cordero J, Bengel F, Müller OJ, Bauersachs J, Dobreva G, Heineke J. C1q and Tumor Necrosis Factor Related Protein 9 Protects from Diabetic Cardiomyopathy by Alleviating Cardiac Insulin Resistance and Inflammation. Cells 2023; 12:cells12030443. [PMID: 36766785 PMCID: PMC9914367 DOI: 10.3390/cells12030443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/24/2023] [Accepted: 01/25/2023] [Indexed: 02/03/2023] Open
Abstract
(1) Background: Diabetic cardiomyopathy is a major health problem worldwide. CTRP9, a secreted glycoprotein, is mainly expressed in cardiac endothelial cells and becomes downregulated in mouse models of diabetes mellitus; (2) Methods: In this study, we investigated the impact of CTRP9 on early stages of diabetic cardiomyopathy induced by 12 weeks of high-fat diet; (3) Results: While the lack of CTRP9 in knock-out mice aggravated insulin resistance and triggered diastolic left ventricular dysfunction, AAV9-mediated cardiac CTRP9 overexpression ameliorated cardiomyopathy under these conditions. At this early disease state upon high-fat diet, no fibrosis, no oxidative damage and no lipid deposition were identified in the myocardium of any of the experimental groups. Mechanistically, we found that CTRP9 is required for insulin-dependent signaling, cardiac glucose uptake in vivo and oxidative energy production in cardiomyocytes. Extensive RNA sequencing from myocardial tissue of CTRP9-overexpressing and knock-out as well as respective control mice revealed that CTRP9 acts as an anti-inflammatory mediator in the myocardium. Hence, CTRP9 knock-out exerted more, while CTRP9-overexpressing mice showed less leukocytes accumulation in the heart during high-fat diet; (4) Conclusions: In summary, endothelial-derived CTRP9 plays a prominent paracrine role to protect against diabetic cardiomyopathy and might constitute a therapeutic target.
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Affiliation(s)
- Ricarda Haustein
- Department of Cardiology and Angiology, Hannover Medical School, 30625 Hannover, Germany
| | - Felix A. Trogisch
- Department of Cardiovascular Physiology, European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany
| | - Merve Keles
- Department of Cardiovascular Physiology, European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany
| | - Susanne Hille
- Department of Internal Medicine III, University Hospital Schleswig-Holstein, 24105 Kiel, Germany
| | - Manuela Fuhrmann
- Department of Cardiovascular Physiology, European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany
| | - Nina Weinzierl
- Department of Cardiovascular Physiology, European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany
| | - Shruthi Hemanna
- Department of Cardiovascular Physiology, European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany
| | - James Thackeray
- Department of Nuclear Medicine, Hannover Medical School, 30625 Hannover, Germany
| | - Yanliang Dou
- Cardiovascular Genomics and Epigenomics, ECAS, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany
| | - Carolin Zwadlo
- Department of Cardiology and Angiology, Hannover Medical School, 30625 Hannover, Germany
| | - Natali Froese
- Department of Cardiology and Angiology, Hannover Medical School, 30625 Hannover, Germany
| | - Julio Cordero
- Cardiovascular Genomics and Epigenomics, ECAS, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany
| | - Frank Bengel
- Department of Nuclear Medicine, Hannover Medical School, 30625 Hannover, Germany
| | - Oliver J. Müller
- Department of Internal Medicine III, University Hospital Schleswig-Holstein, 24105 Kiel, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Partner Site Hamburg/Kiel/Lübeck, 24105 Kiel, Germany
| | - Johann Bauersachs
- Department of Cardiology and Angiology, Hannover Medical School, 30625 Hannover, Germany
| | - Gergana Dobreva
- Cardiovascular Genomics and Epigenomics, ECAS, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany
- DZHK, Partner Site Heidelberg/Mannheim, 69120 Heidelberg, Germany
| | - Joerg Heineke
- Department of Cardiovascular Physiology, European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany
- DZHK, Partner Site Heidelberg/Mannheim, 69120 Heidelberg, Germany
- Correspondence:
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Laura Francés J, Musolino E, Papait R, Pagiatakis C. Non-Coding RNAs in Cell-to-Cell Communication: Exploiting Physiological Mechanisms as Therapeutic Targets in Cardiovascular Pathologies. Int J Mol Sci 2023; 24:ijms24032205. [PMID: 36768528 PMCID: PMC9916956 DOI: 10.3390/ijms24032205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/10/2023] [Accepted: 01/14/2023] [Indexed: 01/24/2023] Open
Abstract
Cardiovascular disease, the leading cause of death worldwide, has been characterized at the molecular level by alterations in gene expression that contribute to the etiology of the disease. Such alterations have been shown to play a critical role in the development of atherosclerosis, cardiac remodeling, and age-related heart failure. Although much is now known about the cellular and molecular mechanisms in this context, the role of epigenetics in the onset of cardiovascular disease remains unclear. Epigenetics, a complex network of mechanisms that regulate gene expression independently of changes to the DNA sequence, has been highly implicated in the loss of homeostasis and the aberrant activation of a myriad of cellular pathways. More specifically, non-coding RNAs have been gaining much attention as epigenetic regulators of various pathologies. In this review, we will provide an overview of the ncRNAs involved in cell-to-cell communication in cardiovascular disease, namely atherosclerosis, cardiac remodeling, and cardiac ageing, and the potential use of epigenetic drugs as novel therapeutic targets.
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Affiliation(s)
| | - Elettra Musolino
- Department of Biotechnology and Life Sciences, University of Insubria, 21100 Varese, Italy
| | - Roberto Papait
- IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy
- Department of Biotechnology and Life Sciences, University of Insubria, 21100 Varese, Italy
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Tam E, Sung HK, Lam NH, You S, Cho S, Ahmed SM, Abdul-Sater AA, Sweeney G. Role of Mitochondrial Iron Overload in Mediating Cell Death in H9c2 Cells. Cells 2022; 12:cells12010118. [PMID: 36611912 PMCID: PMC9818517 DOI: 10.3390/cells12010118] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/07/2022] [Accepted: 12/21/2022] [Indexed: 12/29/2022] Open
Abstract
Iron overload (IO) is associated with cardiovascular diseases, including heart failure. Our study's aim was to examine the mechanism by which IO triggers cell death in H9c2 cells. IO caused accumulation of intracellular and mitochondrial iron as shown by the use of iron-binding fluorescent reporters, FerroOrange and MitoFerroFluor. Expression of cytosolic and mitochondrial isoforms of Ferritin was also induced by IO. IO-induced iron accumulation and cellular ROS was rapid and temporally linked. ROS accumulation was detected in the cytosol and mitochondrial compartments with CellROX, DCF-DA and MitoSOX fluorescent dyes and partly reversed by the general antioxidant N-acetyl cysteine or the mitochondrial antioxidant SkQ1. Antioxidants also reduced the downstream activation of apoptosis and lytic cell death quantified by Caspase 3 cleavage/activation, mitochondrial Cytochrome c release, Annexin V/Propidium iodide staining and LDH release of IO-treated cells. Finally, overexpression of MitoNEET, an outer mitochondrial membrane protein involved in the transfer of Fe-S clusters between mitochondrial and cytosol, was observed to lower iron and ROS accumulation in the mitochondria. These alterations were correlated with reduced IO-induced cell death by apoptosis in MitoNEET-overexpressing cells. In conclusion, IO mediates H9c2 cell death by causing mitochondrial iron accumulation and subsequent general and mitochondrial ROS upregulation.
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Affiliation(s)
- Eddie Tam
- Department of Biology, York University, Toronto, ON M3J 1P3, Canada
| | - Hye Kyoung Sung
- Department of Biology, York University, Toronto, ON M3J 1P3, Canada
| | - Nhat Hung Lam
- Department of Biology, York University, Toronto, ON M3J 1P3, Canada
| | - Sally You
- Department of Biology, York University, Toronto, ON M3J 1P3, Canada
| | - Sungji Cho
- Department of Biology, York University, Toronto, ON M3J 1P3, Canada
| | - Saher M. Ahmed
- Department of Biology, York University, Toronto, ON M3J 1P3, Canada
| | - Ali A. Abdul-Sater
- Muscle Health Research Centre, School of Kinesiology and Health Science, York University, Toronto, ON M3J 1P3, Canada
| | - Gary Sweeney
- Department of Biology, York University, Toronto, ON M3J 1P3, Canada
- Correspondence: ; Tel.: +1-416-736-2100 (ext. 66635)
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Cattaneo P, Hayes MGB, Baumgarten N, Hecker D, Peruzzo S, Aslan GS, Kunderfranco P, Larcher V, Zhang L, Contu R, Fonseca G, Spinozzi S, Chen J, Condorelli G, Dimmeler S, Schulz MH, Heinz S, Guimarães-Camboa N, Evans SM. DOT1L regulates chamber-specific transcriptional networks during cardiogenesis and mediates postnatal cell cycle withdrawal. Nat Commun 2022; 13:7444. [PMID: 36460641 PMCID: PMC9718823 DOI: 10.1038/s41467-022-35070-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 11/17/2022] [Indexed: 12/03/2022] Open
Abstract
Mechanisms by which specific histone modifications regulate distinct gene networks remain little understood. We investigated how H3K79me2, a modification catalyzed by DOT1L and previously considered a general transcriptional activation mark, regulates gene expression during cardiogenesis. Embryonic cardiomyocyte ablation of Dot1l revealed that H3K79me2 does not act as a general transcriptional activator, but rather regulates highly specific transcriptional networks at two critical cardiogenic junctures: embryonic cardiogenesis, where it was particularly important for left ventricle-specific genes, and postnatal cardiomyocyte cell cycle withdrawal, with Dot1L mutants having more mononuclear cardiomyocytes and prolonged cardiomyocyte cell cycle activity. Mechanistic analyses revealed that H3K79me2 in two distinct domains, gene bodies and regulatory elements, synergized to promote expression of genes activated by DOT1L. Surprisingly, H3K79me2 in specific regulatory elements also contributed to silencing genes usually not expressed in cardiomyocytes. These results reveal mechanisms by which DOT1L successively regulates left ventricle specification and cardiomyocyte cell cycle withdrawal.
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Affiliation(s)
- Paola Cattaneo
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, 92093, La Jolla, CA, USA.
- Institute of Genetic and Biomedical Research (IRGB), Milan Unit, National Research Council of Italy, 20138, Milan, Italy.
- Institute of Cardiovascular Regeneration, Center of Molecular Medicine, Goethe University, 60590, Frankfurt am Main, Germany.
- German Center for Cardiovascular Research (DZHK), Partner Site Rhein Main, 60590, Frankfurt am Main, Germany.
- Cardiopulmonary Institute, Goethe University Frankfurt, 60590, Frankfurt am Main, Germany.
| | - Michael G B Hayes
- Department of Medicine, University of California San Diego, 92093, La Jolla, CA, USA
| | - Nina Baumgarten
- Institute of Cardiovascular Regeneration, Center of Molecular Medicine, Goethe University, 60590, Frankfurt am Main, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhein Main, 60590, Frankfurt am Main, Germany
| | - Dennis Hecker
- Institute of Cardiovascular Regeneration, Center of Molecular Medicine, Goethe University, 60590, Frankfurt am Main, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhein Main, 60590, Frankfurt am Main, Germany
| | - Sofia Peruzzo
- Institute of Cardiovascular Regeneration, Center of Molecular Medicine, Goethe University, 60590, Frankfurt am Main, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhein Main, 60590, Frankfurt am Main, Germany
- Cardiopulmonary Institute, Goethe University Frankfurt, 60590, Frankfurt am Main, Germany
| | - Galip S Aslan
- Institute of Cardiovascular Regeneration, Center of Molecular Medicine, Goethe University, 60590, Frankfurt am Main, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhein Main, 60590, Frankfurt am Main, Germany
- Cardiopulmonary Institute, Goethe University Frankfurt, 60590, Frankfurt am Main, Germany
- Faculty of Biological Sciences, Goethe University, 60590, Frankfurt am Main, Germany
| | | | - Veronica Larcher
- Institute of Cardiovascular Regeneration, Center of Molecular Medicine, Goethe University, 60590, Frankfurt am Main, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhein Main, 60590, Frankfurt am Main, Germany
- Cardiopulmonary Institute, Goethe University Frankfurt, 60590, Frankfurt am Main, Germany
| | - Lunfeng Zhang
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, 92093, La Jolla, CA, USA
| | - Riccardo Contu
- Department of Medicine, University of California San Diego, 92093, La Jolla, CA, USA
| | - Gregory Fonseca
- Department of Medicine, Meakins-Christie Laboratories, McGill University, H4A 3J1, Montreal, QC, Canada
| | - Simone Spinozzi
- Department of Medicine, University of California San Diego, 92093, La Jolla, CA, USA
| | - Ju Chen
- Department of Medicine, University of California San Diego, 92093, La Jolla, CA, USA
| | - Gianluigi Condorelli
- Institute of Genetic and Biomedical Research (IRGB), Milan Unit, National Research Council of Italy, 20138, Milan, Italy
- IRCCS Humanitas Research Hospital, 20089, Rozzano (MI), Italy
- Department of Biomedical Sciences, Humanitas University, 20090, Pieve Emanuele (MI), Italy
| | - Stefanie Dimmeler
- Institute of Cardiovascular Regeneration, Center of Molecular Medicine, Goethe University, 60590, Frankfurt am Main, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhein Main, 60590, Frankfurt am Main, Germany
- Cardiopulmonary Institute, Goethe University Frankfurt, 60590, Frankfurt am Main, Germany
| | - Marcel H Schulz
- Institute of Cardiovascular Regeneration, Center of Molecular Medicine, Goethe University, 60590, Frankfurt am Main, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhein Main, 60590, Frankfurt am Main, Germany
- Cardiopulmonary Institute, Goethe University Frankfurt, 60590, Frankfurt am Main, Germany
| | - Sven Heinz
- Department of Medicine, University of California San Diego, 92093, La Jolla, CA, USA
| | - Nuno Guimarães-Camboa
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, 92093, La Jolla, CA, USA
- Institute of Cardiovascular Regeneration, Center of Molecular Medicine, Goethe University, 60590, Frankfurt am Main, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhein Main, 60590, Frankfurt am Main, Germany
- Cardiopulmonary Institute, Goethe University Frankfurt, 60590, Frankfurt am Main, Germany
| | - Sylvia M Evans
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, 92093, La Jolla, CA, USA.
- Department of Medicine, University of California San Diego, 92093, La Jolla, CA, USA.
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Yoshida A, Sekine W, Homma J, Sekine H, Itoyama YY, Sasaki D, Matsuura K, Kobayashi E, Shimizu T. Development of appropriate fatty acid formulations to raise the contractility of constructed myocardial tissues. Regen Ther 2022; 21:413-423. [PMID: 36248630 PMCID: PMC9525806 DOI: 10.1016/j.reth.2022.09.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 09/02/2022] [Accepted: 09/16/2022] [Indexed: 10/31/2022] Open
Abstract
Introduction Methods Results Conclusions
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Lunde IG, Aronsen JM, Melleby AO, Strand ME, Skogestad J, Bendiksen BA, Ahmed MS, Sjaastad I, Attramadal H, Carlson CR, Christensen G. Cardiomyocyte-specific overexpression of syndecan-4 in mice results in activation of calcineurin-NFAT signalling and exacerbated cardiac hypertrophy. Mol Biol Rep 2022; 49:11795-11809. [PMID: 36205855 PMCID: PMC9712407 DOI: 10.1007/s11033-022-07985-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 09/24/2022] [Indexed: 02/01/2023]
Abstract
BACKGROUND Cardiomyocyte hypertrophy is a hallmark of cardiac dysfunction in patients with aortic stenosis (AS), and can be triggered by left ventricular (LV) pressure overload in mice by aortic banding (AB). Syndecan-4 is a transmembrane heparan sulphate proteoglycan which is found increased in the myocardium of AS patients and AB mice. The role of syndecan-4 in cardiomyocyte hypertrophy is not well understood. PURPOSE OF THE STUDY We developed mice with cardiomyocyte-specific overexpression of syndecan-4 (Sdc4-Tg) and subjected these to AB to examine the role of syndecan-4 in hypertrophy and activation of the pro-hypertrophic calcineurin-NFAT signalling pathway. METHODS AND RESULTS Sdc4-Tg mice showed exacerbated cardiac remodelling upon AB compared to wild type (WT). At 2-6 weeks post-AB, Sdc4-Tg and WT mice showed similar hypertrophic growth, while at 20 weeks post-AB, exacerbated hypertrophy and dysfunction were evident in Sdc4-Tg mice. After cross-breeding of Sdc4-Tg mice with NFAT-luciferase reporter mice, we found increased NFAT activation in Sdc4-Tg hearts after AB. Immunoprecipitation showed that calcineurin bound to syndecan-4 in Sdc4-Tg hearts. Isolated cardiomyocytes from Sdc4-Tg mice showed alterations in Ca2+ fluxes, suggesting that syndecan-4 regulated Ca2+ levels, and thereby, activating the syndecan-4-calcineurin complex resulting in NFAT activation and hypertrophic growth. Similarly, primary cardiomyocyte cultures from neonatal rats showed increased calcineurin-NFAT-dependent hypertrophic growth upon viral Sdc4 overexpression. CONCLUSION Our study of mice with cardiomyocyte-specific overexpression of Sdc4 have revealed that syndecan-4 is important for activation of the Ca2+-dependent calcineurin-NFAT signalling pathway, hypertrophic remodelling and dysfunction in cardiomyocytes in response to pressure overload.
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Affiliation(s)
- Ida G Lunde
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway.
- KG Jebsen Center for Cardiac Research, University of Oslo, Oslo, Norway.
- Division of Diagnostics and Technology, Akershus University Hospital, Lørenskog, Norway.
- Institute for Experimental Medical Research (IEMR), Oslo University Hospital Ullevaal, Building 7, 4th floor, Kirkeveien 166, 0407, Oslo, Norway.
| | - J Magnus Aronsen
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- Institute for Medical Biosciences, University of Oslo, Oslo, Norway
| | - A Olav Melleby
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- Institute for Medical Biosciences, University of Oslo, Oslo, Norway
| | - Mari E Strand
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Center for Cardiac Research, University of Oslo, Oslo, Norway
| | - Jonas Skogestad
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- Institute for Medical Biosciences, University of Oslo, Oslo, Norway
| | - Bård A Bendiksen
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Center for Cardiac Research, University of Oslo, Oslo, Norway
| | - M Shakil Ahmed
- Institute for Surgical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Ivar Sjaastad
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Center for Cardiac Research, University of Oslo, Oslo, Norway
| | - Håvard Attramadal
- Institute for Surgical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Cathrine R Carlson
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Center for Cardiac Research, University of Oslo, Oslo, Norway
| | - Geir Christensen
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- KG Jebsen Center for Cardiac Research, University of Oslo, Oslo, Norway
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Li C, Qin D, Hu J, Yang Y, Hu D, Yu B. Inflamed adipose tissue: A culprit underlying obesity and heart failure with preserved ejection fraction. Front Immunol 2022; 13:947147. [PMID: 36483560 PMCID: PMC9723346 DOI: 10.3389/fimmu.2022.947147] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 11/03/2022] [Indexed: 11/23/2022] Open
Abstract
The incidence of heart failure with preserved ejection fraction is increasing in patients with obesity, diabetes, hypertension, and in the aging population. However, there is a lack of adequate clinical treatment. Patients with obesity-related heart failure with preserved ejection fraction display unique pathophysiological and phenotypic characteristics, suggesting that obesity could be one of its specific phenotypes. There has been an increasing recognition that overnutrition in obesity causes adipose tissue expansion and local and systemic inflammation, which consequently exacerbates cardiac remodeling and leads to the development of obese heart failure with preserved ejection fraction. Furthermore, overnutrition leads to cellular metabolic reprogramming and activates inflammatory signaling cascades in various cardiac cells, thereby promoting maladaptive cardiac remodeling. Growing evidence indicates that the innate immune response pathway from the NLRP3 inflammasome, to interleukin-1 to interleukin-6, is involved in the generation of obesity-related systemic inflammation and heart failure with preserved ejection fraction. This review established the existence of obese heart failure with preserved ejection fraction based on structural and functional changes, elaborated the inflammation mechanisms of obese heart failure with preserved ejection fraction, proposed that NLRP3 inflammasome activation may play an important role in adiposity-induced inflammation, and summarized the potential therapeutic approaches.
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Affiliation(s)
- Chenyu Li
- Department of Cardiovascular Medicine, the Second Xiangya Hospital, Research Institute of Blood Lipid and Atherosclerosis, Central South University, Changsha, Hunan, China
| | - Donglu Qin
- Department of Cardiovascular Medicine, the Second Xiangya Hospital, Research Institute of Blood Lipid and Atherosclerosis, Central South University, Changsha, Hunan, China
| | - Jiarui Hu
- Department of Spine Surgery, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yang Yang
- Department of Cardiovascular Medicine, the Second Xiangya Hospital, Research Institute of Blood Lipid and Atherosclerosis, Central South University, Changsha, Hunan, China
| | - Die Hu
- Department of Cardiovascular Medicine, the Second Xiangya Hospital, Research Institute of Blood Lipid and Atherosclerosis, Central South University, Changsha, Hunan, China
| | - Bilian Yu
- Department of Cardiovascular Medicine, the Second Xiangya Hospital, Research Institute of Blood Lipid and Atherosclerosis, Central South University, Changsha, Hunan, China,*Correspondence: Bilian Yu,
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Peyronnet R, Desai A, Edelmann JC, Cameron BA, Emig R, Kohl P, Dean D. Simultaneous assessment of radial and axial myocyte mechanics by combining atomic force microscopy and carbon fibre techniques. Philos Trans R Soc Lond B Biol Sci 2022; 377:20210326. [PMID: 36189808 PMCID: PMC9527909 DOI: 10.1098/rstb.2021.0326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 07/21/2022] [Indexed: 11/12/2022] Open
Abstract
Cardiomyocytes sense and shape their mechanical environment, contributing to its dynamics by their passive and active mechanical properties. While axial forces generated by contracting cardiomyocytes have been amply investigated, the corresponding radial mechanics remain poorly characterized. Our aim is to simultaneously monitor passive and active forces, both axially and radially, in cardiomyocytes freshly isolated from adult mouse ventricles. To do so, we combine a carbon fibre (CF) set-up with a custom-made atomic force microscope (AFM). CF allows us to apply stretch and to record passive and active forces in the axial direction. The AFM, modified for frontal access to fit in CF, is used to characterize radial cell mechanics. We show that stretch increases the radial elastic modulus of cardiomyocytes. We further find that during contraction, cardiomyocytes generate radial forces that are reduced, but not abolished, when cells are forced to contract near isometrically. Radial forces may contribute to ventricular wall thickening during contraction, together with the dynamic re-orientation of cells and sheetlets in the myocardium. This new approach for characterizing cell mechanics allows one to obtain a more detailed picture of the balance of axial and radial mechanics in cardiomyocytes at rest, during stretch, and during contraction. This article is part of the theme issue 'The cardiomyocyte: new revelations on the interplay between architecture and function in growth, health, and disease'.
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Affiliation(s)
- Rémi Peyronnet
- Institute for Experimental Cardiovascular Medicine, University Heart Center Freiburg – Bad Krozingen, University of Freiburg, 79110 Freiburg, Germany
- Faculty of Medicine, University of Freiburg, 79110 Freiburg, Germany
- National Heart and Lung Institute, Imperial College London, London, UK
| | | | | | - Breanne A. Cameron
- Institute for Experimental Cardiovascular Medicine, University Heart Center Freiburg – Bad Krozingen, University of Freiburg, 79110 Freiburg, Germany
- Faculty of Medicine, University of Freiburg, 79110 Freiburg, Germany
| | - Ramona Emig
- Institute for Experimental Cardiovascular Medicine, University Heart Center Freiburg – Bad Krozingen, University of Freiburg, 79110 Freiburg, Germany
- Faculty of Medicine, University of Freiburg, 79110 Freiburg, Germany
- CIBSS Centre for Integrative Biological Signalling Studies, University of Freiburg, 79104 Freiburg, Germany
| | - Peter Kohl
- Institute for Experimental Cardiovascular Medicine, University Heart Center Freiburg – Bad Krozingen, University of Freiburg, 79110 Freiburg, Germany
- Faculty of Medicine, University of Freiburg, 79110 Freiburg, Germany
- National Heart and Lung Institute, Imperial College London, London, UK
- CIBSS Centre for Integrative Biological Signalling Studies, University of Freiburg, 79104 Freiburg, Germany
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Hu CC, Wei X, Liu JM, Han LL, Xia CK, Wu J, You T, Zhu AF, Yao SL, Yuan SY, Xu HD, Xia ZY, Wang TT, Mao WK. Cardiac-targeted PIASy gene silencing mediates deSUMOylation of caveolin-3 and prevents ischemia/reperfusion-induced Na v1.5 downregulation and ventricular arrhythmias. Mil Med Res 2022; 9:58. [PMID: 36229865 PMCID: PMC9563440 DOI: 10.1186/s40779-022-00415-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Accepted: 09/07/2022] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND Abnormal myocardial Nav1.5 expression and function cause lethal ventricular arrhythmias during myocardial ischemia-reperfusion (I/R). Protein inhibitor of activated STAT Y (PIASy)-mediated caveolin-3 (Cav-3) SUMO modification affects Cav-3 binding to the voltage-gated sodium channel 1.5 (Nav1.5). PIASy activity is increased after myocardial I/R, but it is unclear whether this is attributable to plasma membrane Nav1.5 downregulation and ventricular arrhythmias. METHODS Using recombinant adeno-associated virus subtype 9 (AAV9), rat cardiac PIASy was silenced using intraventricular injection of PIASy short hairpin RNA (shRNA). After two weeks, rat hearts were subjected to I/R and electrocardiography was performed to assess malignant arrhythmias. Tissues from peri-infarct areas of the left ventricle were collected for molecular biological measurements. RESULTS PIASy was upregulated by I/R (P < 0.01), with increased SUMO2/3 modification of Cav-3 and reduced membrane Nav1.5 density (P < 0.01). AAV9-PIASy shRNA intraventricular injection into the rat heart downregulated PIASy after I/R, at both mRNA and protein levels (P < 0.05 vs. Scramble-shRNA + I/R group), decreased SUMO-modified Cav-3 levels, enhanced Cav-3 binding to Nav1.5, and prevented I/R-induced decrease of Nav1.5 and Cav-3 co-localization in the intercalated disc and lateral membrane. PIASy silencing in rat hearts reduced I/R-induced fatal arrhythmias, which was reflected by a modest decrease in the duration of ventricular fibrillation (VF; P < 0.05 vs. Scramble-shRNA + I/R group) and a significantly reduced arrhythmia score (P < 0.01 vs. Scramble-shRNA + I/R group). The anti-arrhythmic effects of PIASy silencing were also evidenced by decreased episodes of ventricular tachycardia (VT), sustained VT and VF, especially at the time 5-10 min after ischemia (P < 0.05 vs. Scramble-shRNA + IR group). Using in vitro human embryonic kidney 293 T (HEK293T) cells and isolated adult rat cardiomyocyte models exposed to hypoxia/reoxygenation (H/R), we confirmed that increased PIASy promoted Cav-3 modification by SUMO2/3 and Nav1.5/Cav-3 dissociation after H/R. Mutation of SUMO consensus lysine sites in Cav-3 (K38R or K144R) altered the membrane expression levels of Nav1.5 and Cav-3 before and after H/R in HEK293T cells. CONCLUSIONS I/R-induced cardiac PIASy activation increased Cav-3 SUMOylation by SUMO2/3 and dysregulated Nav1.5-related ventricular arrhythmias. Cardiac-targeted PIASy silencing mediated Cav-3 deSUMOylation and partially prevented I/R-induced Nav1.5 downregulation in the plasma membrane of cardiomyocytes, and subsequent ventricular arrhythmias in rats. PIASy was identified as a potential therapeutic target for life-threatening arrhythmias in patients with ischemic heart diseases.
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Affiliation(s)
- Chen-Chen Hu
- Department of Anesthesiology, Institute of Anesthesiology and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xin Wei
- Department of Anesthesiology, Institute of Anesthesiology and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jin-Min Liu
- Department of Anesthesiology, Institute of Anesthesiology and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Lin-Lin Han
- Department of Anesthesiology, Institute of Anesthesiology and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Cheng-Kun Xia
- Department of Anesthesiology, Institute of Anesthesiology and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jing Wu
- Department of Anesthesiology, Institute of Anesthesiology and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Tao You
- Department of Cardiology, the Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
| | - A-Fang Zhu
- Department of Anesthesiology, Peking Union Medical College Hospital, CAMS and PUMC, Beijing, 100730, China
| | - Shang-Long Yao
- Department of Anesthesiology, Institute of Anesthesiology and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Shi-Ying Yuan
- Department of Anesthesiology, Institute of Anesthesiology and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Hao-Dong Xu
- Department of Pathology, University of Washington, Seattle, WA, 98195, USA
| | - Zheng-Yuan Xia
- State Key Laboratory of Pharmaceutical Biotechnology, the University of Hong Kong, Hong Kong, 999077, China.,Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524000, Guangdong, China
| | - Ting-Ting Wang
- Department of Anesthesiology, Institute of Anesthesiology and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Wei-Ke Mao
- Department of Anesthesiology, Institute of Anesthesiology and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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Scott L, Elídóttir K, Jeevaratnam K, Jurewicz I, Lewis R. Electrical stimulation through conductive scaffolds for cardiomyocyte tissue engineering: Systematic review and narrative synthesis. Ann N Y Acad Sci 2022; 1515:105-119. [PMID: 35676231 PMCID: PMC9796457 DOI: 10.1111/nyas.14812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Electrical conductivity is of great significance to cardiac tissue engineering and permits the use of electrical stimulation in mimicking cardiac pacing. The development of biomaterials for tissue engineering can incorporate physical properties that are uncommon to standard cell culture and can facilitate improved cardiomyocyte function. In this review, the PICOT question asks, "How has the application of external electrical stimulation in conductive scaffolds for tissue engineering affected cardiomyocyte behavior in in vitro cell culture?" The Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines, with predetermined inclusion and quality appraisal criteria, were used to assess publications from PubMed, Web of Science, and Scopus. Results revealed carbon nanotubes to be the most common conductive agent in biomaterials and rodent-sourced cell types as the most common cardiomyocytes used. To assess cardiomyocytes, immunofluorescence was used most often, utilizing proteins, such as connexin 43, cardiac α-actinin, and cardiac troponins. It was determined that the modal average stimulation protocol comprised 1-3 V square biphasic 50-ms pulses at 1 Hz, applied toward the end of cell culture. The addition of electrical stimulation to in vitro culture has exemplified it as a powerful tool for cardiac tissue engineering and brings researchers closer to creating optimal artificial cardiac tissue constructs.
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Affiliation(s)
- Louie Scott
- School of Veterinary MedicineUniversity of SurreyGuildfordUK
| | | | | | | | - Rebecca Lewis
- School of Veterinary MedicineUniversity of SurreyGuildfordUK
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Current knowledge of pyroptosis in heart diseases. J Mol Cell Cardiol 2022; 171:81-89. [PMID: 35868567 DOI: 10.1016/j.yjmcc.2022.07.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 06/22/2022] [Accepted: 07/13/2022] [Indexed: 10/17/2022]
Abstract
Pyroptosis is a form of pro-inflammatory, necrotic cell death mediated by proteins of the gasdermin family. Various heart diseases, including myocardial ischemia/reperfusion injury, myocardial infarction, and heart failure, involve cardiomyocyte and non-myocyte pyroptosis. Cardiomyocyte pyroptosis also causes the release of pro-inflammatory cytokines. Recent studies have confirmed that pyroptosis is predominantly triggered by both the canonical and non-canonical inflammasome pathways, which independently facilitate caspase-1 or caspase-11/4/5 activation and gasdermin D (GSDMD) cleavage. Cardiac fibroblast and myeloid cell pyroptosis also contributes to the pathogenesis and development of heart diseases. This review summarizes the recent studies on pyroptosis in heart diseases and discusses the associated therapeutic targets.
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Chen Y, Chan JPY, Wu J, Li R, Santerre JP. Compatibility and function of human induced pluripotent stem cell derived cardiomyocytes on an electrospun nanofibrous scaffold, generated from an ionomeric polyurethane composite. J Biomed Mater Res A 2022; 110:1932-1943. [PMID: 35851742 DOI: 10.1002/jbm.a.37428] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 06/27/2022] [Accepted: 07/01/2022] [Indexed: 11/06/2022]
Abstract
Synthetic scaffolds are needed for generating organized neo-myocardium constructs to promote functional tissue repair. This study investigated the biocompatibility of an elastomeric electrospun degradable polar/hydrophobic/ionic polyurethane (D-PHI) composite scaffold with human-induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs). The composite material was electrospun to generate scaffolds, with nanofibres oriented in aligned or random directions. These features enabled the authors to evaluate the effect of characteristic elements which mimic that of the native extracellular matrix (alignment, chemical heterogeneity, and fiber topography) on hiPSC-CMs activity. The functional nature of the hiPSC-CM cultured on gelatin and Matrigel-coated scaffolds were assessed, investigating the influence of protein interactions with the synthetic substrate on subsequent cell phenotype. After 7 days of culture, high hiPSC-CM viability was observed on the scaffolds. The cells on the aligned scaffold were elongated and demonstrated aligned sarcomeres that oriented parallel to the direction of the fibers, while the cells on random scaffolds and a tissue culture polystyrene (TCPS) control did not exhibit such an organized morphology. The hiPSC-CMs cultured on the scaffolds and TCPS expressed similar levels of cardiac troponin-T, but there was a higher expression of ventricular myosin light chain-2 on the D-PHI composite scaffolds versus TCPS, indicating a higher proportion of hiPSC-CM exhibiting a ventricular cardiomyocyte like phenotype. Within 7 days, the hiPSC-CMs on aligned scaffolds and TCPS beat synchronously and had similar conductive velocities. These preliminary results show that aligned D-PHI elastomeric scaffolds allow hiPSC-CMs to demonstrate important cardiomyocytes characteristics, critical to enabling their future potential use for cardiac tissue regeneration.
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Affiliation(s)
- Yizhou Chen
- Institute of Biomedical Engineering, University of Toronto Toronto Ontario Canada
- Translational Biology and Engineering Program, Ted Rogers Centre for Heart Research University of Toronto Toronto Ontario Canada
| | - Jennifer P. Y. Chan
- Institute of Biomedical Engineering, University of Toronto Toronto Ontario Canada
- Translational Biology and Engineering Program, Ted Rogers Centre for Heart Research University of Toronto Toronto Ontario Canada
- Baylis Medical Mississauga Ontario Canada
| | - Jun Wu
- Toronto General Hospital Research Institute, University Health Network Toronto Ontario Canada
| | - Ren‐Ke Li
- Toronto General Hospital Research Institute, University Health Network Toronto Ontario Canada
| | - J. Paul Santerre
- Institute of Biomedical Engineering, University of Toronto Toronto Ontario Canada
- Translational Biology and Engineering Program, Ted Rogers Centre for Heart Research University of Toronto Toronto Ontario Canada
- Toronto General Hospital Research Institute, University Health Network Toronto Ontario Canada
- Faculty of Dentistry University of Toronto Toronto Ontario Canada
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