1
|
Caporali A, Anwar M, Devaux Y, Katare R, Martelli F, Srivastava PK, Pedrazzini T, Emanueli C. Non-coding RNAs as therapeutic targets and biomarkers in ischaemic heart disease. Nat Rev Cardiol 2024:10.1038/s41569-024-01001-5. [PMID: 38499868 DOI: 10.1038/s41569-024-01001-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/19/2024] [Indexed: 03/20/2024]
Abstract
The adult heart is a complex, multicellular organ that is subjected to a series of regulatory stimuli and circuits and has poor reparative potential. Despite progress in our understanding of disease mechanisms and in the quality of health care, ischaemic heart disease remains the leading cause of death globally, owing to adverse cardiac remodelling, leading to ischaemic cardiomyopathy and heart failure. Therapeutic targets are urgently required for the protection and repair of the ischaemic heart. Moreover, personalized clinical biomarkers are necessary for clinical diagnosis, medical management and to inform the individual response to treatment. Non-coding RNAs (ncRNAs) deeply influence cardiovascular functions and contribute to communication between cells in the cardiac microenvironment and between the heart and other organs. As such, ncRNAs are candidates for translation into clinical practice. However, ncRNA biology has not yet been completely deciphered, given that classes and modes of action have emerged only in the past 5 years. In this Review, we discuss the latest discoveries from basic research on ncRNAs and highlight both the clinical value and the challenges underscoring the translation of these molecules as biomarkers and therapeutic regulators of the processes contributing to the initiation, progression and potentially the prevention or resolution of ischaemic heart disease and heart failure.
Collapse
Affiliation(s)
- Andrea Caporali
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
| | - Maryam Anwar
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Yvan Devaux
- Cardiovascular Research Unit, Department of Precision Health, Luxembourg Institute of Health, Luxembourg, Luxemburg
| | - Rajesh Katare
- Department of Physiology, HeartOtago, University of Otago, Dunedin, New Zealand
| | - Fabio Martelli
- Molecular Cardiology Laboratory, IRCCS Policlinico San Donato, Milan, Italy
| | | | - Thierry Pedrazzini
- Experimental Cardiology Unit, Division of Cardiology, Department of Cardiovascular Medicine, University of Lausanne Medical School, Lausanne, Switzerland
- School of Cardiovascular and Metabolic Medicine & Sciences, King's College London, London, UK
- British Heart Foundation Centre of Research Excellence, King's College London, London, UK
| | - Costanza Emanueli
- National Heart and Lung Institute, Imperial College London, London, UK.
| |
Collapse
|
2
|
Rogala S, Ali T, Melissari MT, Währisch S, Schuster P, Sarre A, Emídio RC, Boettger T, Rogg EM, Kaur J, Krishnan J, Dumbović G, Dimmeler S, Ounzain S, Pedrazzini T, Herrmann BG, Grote P. The lncRNA Sweetheart regulates compensatory cardiac hypertrophy after myocardial injury in murine males. Nat Commun 2023; 14:7024. [PMID: 37919291 PMCID: PMC10622434 DOI: 10.1038/s41467-023-42760-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 10/19/2023] [Indexed: 11/04/2023] Open
Abstract
After myocardial infarction in the adult heart the remaining, non-infarcted tissue adapts to compensate the loss of functional tissue. This adaptation requires changes in gene expression networks, which are mostly controlled by transcription regulating proteins. Long non-coding transcripts (lncRNAs) are taking part in fine-tuning such gene programs. We describe and characterize the cardiomyocyte specific lncRNA Sweetheart RNA (Swhtr), an approximately 10 kb long transcript divergently expressed from the cardiac core transcription factor coding gene Nkx2-5. We show that Swhtr is dispensable for normal heart development and function but becomes essential for the tissue adaptation process after myocardial infarction in murine males. Re-expressing Swhtr from an exogenous locus rescues the Swhtr null phenotype. Genes that depend on Swhtr after cardiac stress are significantly occupied and therefore most likely regulated by NKX2-5. The Swhtr transcript interacts with NKX2-5 and disperses upon hypoxic stress in cardiomyocytes, indicating an auxiliary role of Swhtr for NKX2-5 function in tissue adaptation after myocardial injury.
Collapse
Affiliation(s)
- Sandra Rogala
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Paul-Ehrlich-Str. 42-44, 60596, Frankfurt am Main, Germany
| | - Tamer Ali
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Paul-Ehrlich-Str. 42-44, 60596, Frankfurt am Main, Germany
- Faculty of Science, Benha University, Benha, 13518, Egypt
| | - Maria-Theodora Melissari
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Sandra Währisch
- Department of Developmental Genetics, Max Planck Institute for Molecular Genetics, Ihnestr. 63-73, 14195, Berlin, Germany
| | - Peggy Schuster
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Alexandre Sarre
- Cardiovascular Assessment Facility, University of Lausanne Medical School, Lausanne, Switzerland
| | - Rebeca Cordellini Emídio
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Thomas Boettger
- Department of Cardiac Development and Remodelling, Max Planck Institute for Heart- and Lung Research, 61231, Bad Nauheim, Germany
| | - Eva-Maria Rogg
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Jaskiran Kaur
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Jaya Krishnan
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Gabrijela Dumbović
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Stefanie Dimmeler
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Samir Ounzain
- Experimental Cardiology Unit, Department of Cardiovascular Medicine, University of Lausanne Medical School, Lausanne, Switzerland
- HAYA Therapeutics, Rte de la Corniche 6, 1066, Lausanne, Switzerland
| | - Thierry Pedrazzini
- Experimental Cardiology Unit, Department of Cardiovascular Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Bernhard G Herrmann
- Department of Developmental Genetics, Max Planck Institute for Molecular Genetics, Ihnestr. 63-73, 14195, Berlin, Germany
| | - Phillip Grote
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany.
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Paul-Ehrlich-Str. 42-44, 60596, Frankfurt am Main, Germany.
- Frankfurt Cancer Institute, Goethe University Frankfurt, Frankfurt am Main, Germany.
| |
Collapse
|
3
|
Aghagolzadeh P, Plaisance I, Bernasconi R, Treibel TA, Pulido Quetglas C, Wyss T, Wigger L, Nemir M, Sarre A, Chouvardas P, Johnson R, González A, Pedrazzini T. Assessment of the Cardiac Noncoding Transcriptome by Single-Cell RNA Sequencing Identifies FIXER, a Conserved Profibrogenic Long Noncoding RNA. Circulation 2023; 148:778-797. [PMID: 37427428 DOI: 10.1161/circulationaha.122.062601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 06/02/2023] [Indexed: 07/11/2023]
Abstract
BACKGROUND Cardiac fibroblasts have crucial roles in the heart. In particular, fibroblasts differentiate into myofibroblasts in the damaged myocardium, contributing to scar formation and interstitial fibrosis. Fibrosis is associated with heart dysfunction and failure. Myofibroblasts therefore represent attractive therapeutic targets. However, the lack of myofibroblast-specific markers has precluded the development of targeted therapies. In this context, most of the noncoding genome is transcribed into long noncoding RNAs (lncRNAs). A number of lncRNAs have pivotal functions in the cardiovascular system. lncRNAs are globally more cell-specific than protein-coding genes, supporting their importance as key determinants of cell identity. METHODS In this study, we evaluated the value of the lncRNA transcriptome in very deep single-cell RNA sequencing. We profiled the lncRNA transcriptome in cardiac nonmyocyte cells after infarction and probed heterogeneity in the fibroblast and myofibroblast populations. In addition, we searched for subpopulation-specific markers that can constitute novel targets in therapy for heart disease. RESULTS We demonstrated that cardiac cell identity can be defined by the sole expression of lncRNAs in single-cell experiments. In this analysis, we identified lncRNAs enriched in relevant myofibroblast subpopulations. Selecting 1 candidate we named FIXER (fibrogenic LOX-locus enhancer RNA), we showed that its silencing limits fibrosis and improves heart function after infarction. Mechanitically, FIXER interacts with CBX4, an E3 SUMO protein ligase and transcription factor, guiding CBX4 to the promoter of the transcription factor RUNX1 to control its expression and, consequently, the expression of a fibrogenic gene program.. FIXER is conserved in humans, supporting its translational value. CONCLUSIONS Our results demonstrated that lncRNA expression is sufficient to identify the various cell types composing the mammalian heart. Focusing on cardiac fibroblasts and their derivatives, we identified lncRNAs uniquely expressed in myofibroblasts. In particular, the lncRNA FIXER represents a novel therapeutic target for cardiac fibrosis.
Collapse
Affiliation(s)
- Parisa Aghagolzadeh
- Experimental Cardiology Unit, Division of Cardiology, Department of Cardiovascular Medicine, University of Lausanne Medical School, Switzerland (P.A., I.P., R.B., M.N., T.P.)
| | - Isabelle Plaisance
- Experimental Cardiology Unit, Division of Cardiology, Department of Cardiovascular Medicine, University of Lausanne Medical School, Switzerland (P.A., I.P., R.B., M.N., T.P.)
| | - Riccardo Bernasconi
- Experimental Cardiology Unit, Division of Cardiology, Department of Cardiovascular Medicine, University of Lausanne Medical School, Switzerland (P.A., I.P., R.B., M.N., T.P.)
| | - Thomas A Treibel
- Institute of Cardiovascular Sciences, University College London, United Kingdom (T.A.T.)
| | - Carlos Pulido Quetglas
- Department for BioMedical Research, University of Bern, Switzerland (C.P.Q., P.C., R.J.)
| | - Tania Wyss
- Department of Oncology, Ludwig Institute for Cancer Research, University of Lausanne, Epalinges, Switzerland (T.W.)
- Swiss Institute of Bioinformatics, Lausanne, Switzerland (T.W., L.W.)
| | - Leonore Wigger
- Swiss Institute of Bioinformatics, Lausanne, Switzerland (T.W., L.W.)
| | - Mohamed Nemir
- Experimental Cardiology Unit, Division of Cardiology, Department of Cardiovascular Medicine, University of Lausanne Medical School, Switzerland (P.A., I.P., R.B., M.N., T.P.)
| | - Alexandre Sarre
- Cardiovascular Assessment Facility, University of Lausanne, Switzerland (A.S.)
| | - Panagiotis Chouvardas
- Department for BioMedical Research, University of Bern, Switzerland (C.P.Q., P.C., R.J.)
| | - Rory Johnson
- Department for BioMedical Research, University of Bern, Switzerland (C.P.Q., P.C., R.J.)
| | - Arantxa González
- Program of Cardiovascular Diseases, CIMA Universidad de Navarra and IdiSNA, Pamplona, Spain (A.G.)
- CIBERCV, Madrid, Spain (A.G.)
| | - Thierry Pedrazzini
- Experimental Cardiology Unit, Division of Cardiology, Department of Cardiovascular Medicine, University of Lausanne Medical School, Switzerland (P.A., I.P., R.B., M.N., T.P.)
| |
Collapse
|
4
|
Plaisance I, Chouvardas P, Sun Y, Nemir M, Aghagolzadeh P, Aminfar F, Shen S, Shim WJ, Rochais F, Johnson R, Palpant N, Pedrazzini T. A transposable element into the human long noncoding RNA CARMEN is a switch for cardiac precursor cell specification. Cardiovasc Res 2023; 119:1361-1376. [PMID: 36537036 PMCID: PMC10262180 DOI: 10.1093/cvr/cvac191] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 10/20/2022] [Accepted: 11/04/2022] [Indexed: 03/25/2024] Open
Abstract
AIMS The major cardiac cell types composing the adult heart arise from common multipotent precursor cells. Cardiac lineage decisions are guided by extrinsic and cell-autonomous factors, including recently discovered long noncoding RNAs (lncRNAs). The human lncRNA CARMEN, which is known to dictate specification toward the cardiomyocyte (CM) and the smooth muscle cell (SMC) fates, generates a diversity of alternatively spliced isoforms. METHODS AND RESULTS The CARMEN locus can be manipulated to direct human primary cardiac precursor cells (CPCs) into specific cardiovascular fates. Investigating CARMEN isoform usage in differentiating CPCs represents therefore a unique opportunity to uncover isoform-specific functions in lncRNAs. Here, we identify one CARMEN isoform, CARMEN-201, to be crucial for SMC commitment. CARMEN-201 activity is encoded within an alternatively spliced exon containing a MIRc short interspersed nuclear element. This element binds the transcriptional repressor REST (RE1 Silencing Transcription Factor), targets it to cardiogenic loci, including ISL1, IRX1, IRX5, and SFRP1, and thereby blocks the CM gene program. In turn, genes regulating SMC differentiation are induced. CONCLUSIONS These data show how a critical physiological switch is wired by alternative splicing and functional transposable elements in a long noncoding RNA. They further demonstrated the crucial importance of the lncRNA isoform CARMEN-201 in SMC specification during heart development.
Collapse
Affiliation(s)
- Isabelle Plaisance
- Experimental Cardiology Unit, Division of Cardiology, University of Lausanne Medical School, Lausanne, Switzerland
| | | | - Yuliangzi Sun
- Institute for Molecular Bioscience, University of Queensland, Brisbane, Australia
| | - Mohamed Nemir
- Experimental Cardiology Unit, Division of Cardiology, University of Lausanne Medical School, Lausanne, Switzerland
| | - Parisa Aghagolzadeh
- Experimental Cardiology Unit, Division of Cardiology, University of Lausanne Medical School, Lausanne, Switzerland
| | - Farhang Aminfar
- Experimental Cardiology Unit, Division of Cardiology, University of Lausanne Medical School, Lausanne, Switzerland
| | - Sophie Shen
- Institute for Molecular Bioscience, University of Queensland, Brisbane, Australia
| | - Woo Jun Shim
- Institute for Molecular Bioscience, University of Queensland, Brisbane, Australia
| | - Francesca Rochais
- Aix Marseille University, Marseille Medical Genetics, INSERM, U1251, Marseille, France
| | - Rory Johnson
- Department of Medical Oncology, Inselspital, University of Bern, Bern, Switzerland
- School of Biology and Environmental Science, University College Dublin, Dublin, Ireland
| | - Nathan Palpant
- Institute for Molecular Bioscience, University of Queensland, Brisbane, Australia
| | - Thierry Pedrazzini
- Experimental Cardiology Unit, Division of Cardiology, University of Lausanne Medical School, Lausanne, Switzerland
| |
Collapse
|
5
|
Sopic M, Robinson EL, Emanueli C, Srivastava P, Angione C, Gaetano C, Condorelli G, Martelli F, Pedrazzini T, Devaux Y. Integration of epigenetic regulatory mechanisms in heart failure. Basic Res Cardiol 2023; 118:16. [PMID: 37140699 PMCID: PMC10158703 DOI: 10.1007/s00395-023-00986-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/27/2023] [Accepted: 04/10/2023] [Indexed: 05/05/2023]
Abstract
The number of "omics" approaches is continuously growing. Among others, epigenetics has appeared as an attractive area of investigation by the cardiovascular research community, notably considering its association with disease development. Complex diseases such as cardiovascular diseases have to be tackled using methods integrating different omics levels, so called "multi-omics" approaches. These approaches combine and co-analyze different levels of disease regulation. In this review, we present and discuss the role of epigenetic mechanisms in regulating gene expression and provide an integrated view of how these mechanisms are interlinked and regulate the development of cardiac disease, with a particular attention to heart failure. We focus on DNA, histone, and RNA modifications, and discuss the current methods and tools used for data integration and analysis. Enhancing the knowledge of these regulatory mechanisms may lead to novel therapeutic approaches and biomarkers for precision healthcare and improved clinical outcomes.
Collapse
Affiliation(s)
- Miron Sopic
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | - Emma L Robinson
- Division of Cardiology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Costanza Emanueli
- National Heart & Lung Institute, Imperial College London, London, UK
| | | | - Claudio Angione
- School of Computing, Engineering & Digital Technologies, Teesside University, Tees Valley, Middlesbrough, TS1 3BA, UK
- Centre for Digital Innovation, Teesside University, Campus Heart, Tees Valley, Middlesbrough, TS1 3BX, UK
- National Horizons Centre, Darlington, DL1 1HG, UK
| | - Carlo Gaetano
- Laboratorio di Epigenetica, Istituti Clinici Scientifici Maugeri IRCCS, Via Maugeri 10, 27100, Pavia, Italy
| | - Gianluigi Condorelli
- IRCCS-Humanitas Research Hospital, Via Manzoni 56, 20089, Rozzano, MI, Italy
- Institute of Genetic and Biomedical Research, National Research Council of Italy, Arnold-Heller-Str.3, 24105, Milan, Italy
| | - Fabio Martelli
- Molecular Cardiology Laboratory, IRCCS-Policlinico San Donato, Via Morandi 30, San Donato Milanese, 20097, Milan, Italy
| | - Thierry Pedrazzini
- Experimental Cardiology Unit, Division of Cardiology, Department of Cardiovascular Medicine, University of Lausanne Medical School, 1011, Lausanne, Switzerland
| | - Yvan Devaux
- Cardiovascular Research Unit, Department of Population Health, Luxembourg Institute of Health, L-1445, Strassen, Luxembourg.
| |
Collapse
|
6
|
Boukenna M, Rougier JS, Aghagolzadeh P, Pradervand S, Guichard S, Hämmerli AF, Pedrazzini T, Abriel H. Multiomics uncover the proinflammatory role of Trpm4 deletion after myocardial infarction in mice. Am J Physiol Heart Circ Physiol 2023; 324:H504-H518. [PMID: 36800508 DOI: 10.1152/ajpheart.00671.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 02/10/2023] [Accepted: 02/14/2023] [Indexed: 02/19/2023]
Abstract
Upon myocardial infarction (MI), ischemia-induced cell death triggers an inflammatory response responsible for removing necrotic material and inducing tissue repair. TRPM4 is a Ca2+-activated ion channel permeable to monovalent cations. Although its role in cardiomyocyte-driven hypertrophy and arrhythmia post-MI has been established, no study has yet investigated its role in the inflammatory process orchestrated by endothelial cells, immune cells, and fibroblasts. This study aims to assess the role of TRPM4 in 1) survival and cardiac function, 2) inflammation, and 3) healing post-MI. We performed ligation of the left coronary artery or sham intervention on 154 Trpm4 WT or KO mice under isoflurane anesthesia. Survival and echocardiographic functions were monitored up to 5 wk. We collected serum during the acute post-MI phase to analyze proteomes and performed single-cell RNA sequencing on nonmyocytic cells of hearts after 24 and 72 h. Lastly, we assessed chronic fibrosis and angiogenesis. We observed no significant differences in survival or cardiac function, even though our proteomics data showed significantly decreased tissue injury markers (i.e., creatine kinase M and VE-cadherin) in KO serum after 12 h. On the other hand, inflammation, characterized by serum amyloid P component in the serum, higher number of recruited granulocytes, inflammatory monocytes, and macrophages, as well as expression of proinflammatory genes, was significantly higher in KO. This correlated with increased chronic cardiac fibrosis and angiogenesis. Since inflammation and fibrosis are closely linked to adverse remodeling, future therapeutic attempts at inhibiting TRPM4 will need to assess these parameters carefully before proceeding with translational studies.NEW & NOTEWORTHY Deletion of Trpm4 increases markers of cardiac and systemic inflammation within the first 24 h after MI, while inducing an earlier fibrotic transition at 72 h and more overall chronic fibrosis and angiogenesis at 5 wk. The descriptive, robust, and methodologically broad approach of this study sheds light on an important caveat that will need to be taken into account in all future therapeutic attempts to inhibit TRPM4 post-MI.
Collapse
Affiliation(s)
- Mey Boukenna
- Institute of Biochemistry and Molecular Medicine and Swiss National Centre of Competence in Research TransCure, University of Bern, Bern, Switzerland
- Department of Cardiology, Bern University Hospital, Inselspital, University of Bern, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Jean-Sébastien Rougier
- Institute of Biochemistry and Molecular Medicine and Swiss National Centre of Competence in Research TransCure, University of Bern, Bern, Switzerland
| | - Parisa Aghagolzadeh
- Experimental Cardiology Unit, Department of Cardiovascular Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Sylvain Pradervand
- Centre d'Oncologie de Précision, Département d'Oncologie, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Sabrina Guichard
- Institute of Biochemistry and Molecular Medicine and Swiss National Centre of Competence in Research TransCure, University of Bern, Bern, Switzerland
| | - Anne-Flore Hämmerli
- Institute of Biochemistry and Molecular Medicine and Swiss National Centre of Competence in Research TransCure, University of Bern, Bern, Switzerland
| | - Thierry Pedrazzini
- Experimental Cardiology Unit, Department of Cardiovascular Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Hugues Abriel
- Institute of Biochemistry and Molecular Medicine and Swiss National Centre of Competence in Research TransCure, University of Bern, Bern, Switzerland
| |
Collapse
|
7
|
Firat H, Zhang L, Baksi S, Leszek P, Schordan E, Ounzain S, Kottwitz J, Patriki D, Heidecker B, Lüscher TF, Pedrazzini T, Devaux Y. FIMICS: A panel of long noncoding RNAs for cardiovascular conditions. Heliyon 2023; 9:e13087. [PMID: 36747920 PMCID: PMC9898641 DOI: 10.1016/j.heliyon.2023.e13087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 01/06/2023] [Accepted: 01/16/2023] [Indexed: 01/21/2023] Open
Abstract
Cardiovascular disorders such as heart failure are leading causes of mortality. Patient stratification via identification of novel biomarkers could improve management of cardiovascular diseases of complex etiologies. Long-noncoding RNAs (lncRNAs) are highly tissue-specific in nature and have emerged as important biomarkers in human diseases. In this study, we aimed to identify cardiac-enriched lncRNAs as potential biomarkers for cardiovascular conditions. Deep RNA sequencing and quantitative PCR identified differentially expressed lncRNAs between failing and non-failing hearts. An independent dataset was used to evaluate the enrichment of lncRNAs in normal hearts. We identified a panel of 2906 lncRNAs, named FIMICS, that were either cardiac-enriched or differentially expressed between failing and non-failing hearts. Expression of lncRNAs in blood samples differentiated patients with myocarditis and acute myocardial infarction. We hereby present the FIMICS panel, a readily available tool to provide insights into cardiovascular pathologies and which could be helpful for diagnosis, monitoring and prognosis purposes.
Collapse
Affiliation(s)
| | - Lu Zhang
- Cardiovascular Research Unit, Luxembourg Institute of Health, Strassen, Luxembourg
| | - Shounak Baksi
- Cardiovascular Research Unit, Luxembourg Institute of Health, Strassen, Luxembourg
| | - Przemyslaw Leszek
- The Heart Failure and Transplantology Department, Institute of Cardiology, Warsaw, Poland
| | | | | | - Jan Kottwitz
- Division of Anesthesiology, Intensive Care, Rescue and Pain Medicine, Kantonsspital St. Gallen, 9007 St. Gallen, Switzerland
| | - Dimitri Patriki
- Department of Cardiology, University Hospital of Zurich, Raemistrasse 100, 8091 Zurich, Switzerland
| | | | - Thomas F. Lüscher
- Royal Brompton & Harefield Hospitals GSTT, Imperial College and Kings College London, U.K. and Center for Molecular Cardiology, University of Zurich, Switzerland
| | - Thierry Pedrazzini
- Experimental Cardiology Unit, Department of Cardiovascular Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Yvan Devaux
- Cardiovascular Research Unit, Luxembourg Institute of Health, Strassen, Luxembourg,Corresponding author. Cardiovascular Research Unit, Luxembourg Institute of Health, L1445, Luxembourg.
| | | |
Collapse
|
8
|
Nemir M, Kay M, Maison D, Berthonneche C, Sarre A, Plaisance I, Pedrazzini T. Inhibition of the NOTCH1 Pathway in the Stressed Heart Limits Fibrosis and Promotes Recruitment of Non-Myocyte Cells into the Cardiomyocyte Fate. J Cardiovasc Dev Dis 2022; 9:jcdd9040111. [PMID: 35448087 PMCID: PMC9024539 DOI: 10.3390/jcdd9040111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 04/04/2022] [Accepted: 04/06/2022] [Indexed: 12/10/2022] Open
Abstract
Cardiac pathologies lead to an acute or gradual loss of cardiomyocytes. Because of the limited regenerative capacity of the mammalian heart, cardiomyocytes are only replaced by fibrotic tissue. Excessive fibrosis contributes to the deterioration of cardiac function and the transition to heart failure, which is the leading cause of morbidity and mortality worldwide. Currently, no treatments can promote replenishment of the injured heart with newly formed cardiomyocytes. In this context, regenerative strategies explore the possibility to promote recovery through induction of cardiomyocyte production from pre-existing cardiomyocytes. On the other hand, cardiac non-myocyte cells can be directly reprogrammed into induced cardiac precursor cells and cardiomyocytes, suggesting that these cells could be exploited to produce cardiomyocytes in vivo. Here, we provide evidence that the sequential activation and inhibition of the NOTCH1 signaling pathway in the stressed heart decreases fibrosis and improves cardiac function in the stressed heart. This is accompanied by the emergence of new cardiomyocytes from non-myocyte origin. Overall, our data show how a developmental pathway such as the NOTCH pathway can be manipulated to provide therapeutic benefit in the damaged heart.
Collapse
Affiliation(s)
- Mohamed Nemir
- Experimental Cardiology Unit, Division of Cardiology, Department of Cardiovascular Medicine, University of Lausanne Medical School, 1011 Lausanne, Switzerland; (M.N.); (M.K.); (D.M.); (I.P.)
| | - Maryam Kay
- Experimental Cardiology Unit, Division of Cardiology, Department of Cardiovascular Medicine, University of Lausanne Medical School, 1011 Lausanne, Switzerland; (M.N.); (M.K.); (D.M.); (I.P.)
| | - Damien Maison
- Experimental Cardiology Unit, Division of Cardiology, Department of Cardiovascular Medicine, University of Lausanne Medical School, 1011 Lausanne, Switzerland; (M.N.); (M.K.); (D.M.); (I.P.)
| | - Corinne Berthonneche
- Cardiovascular Assessment Facility, University of Lausanne, 1011 Lausanne, Switzerland; (C.B.); (A.S.)
| | - Alexandre Sarre
- Cardiovascular Assessment Facility, University of Lausanne, 1011 Lausanne, Switzerland; (C.B.); (A.S.)
| | - Isabelle Plaisance
- Experimental Cardiology Unit, Division of Cardiology, Department of Cardiovascular Medicine, University of Lausanne Medical School, 1011 Lausanne, Switzerland; (M.N.); (M.K.); (D.M.); (I.P.)
| | - Thierry Pedrazzini
- Experimental Cardiology Unit, Division of Cardiology, Department of Cardiovascular Medicine, University of Lausanne Medical School, 1011 Lausanne, Switzerland; (M.N.); (M.K.); (D.M.); (I.P.)
- Correspondence: ; Tel.: +41-21-314-0765
| |
Collapse
|
9
|
Robinson EL, Baker AH, Brittan M, McCracken I, Condorelli G, Emanueli C, Srivastava PK, Gaetano C, Thum T, Vanhaverbeke M, Angione C, Heymans S, Devaux Y, Pedrazzini T, Martelli F. Dissecting the transcriptome in cardiovascular disease. Cardiovasc Res 2022; 118:1004-1019. [PMID: 33757121 PMCID: PMC8930073 DOI: 10.1093/cvr/cvab117] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 03/22/2021] [Indexed: 12/12/2022] Open
Abstract
The human transcriptome comprises a complex network of coding and non-coding RNAs implicated in a myriad of biological functions. Non-coding RNAs exhibit highly organized spatial and temporal expression patterns and are emerging as critical regulators of differentiation, homeostasis, and pathological states, including in the cardiovascular system. This review defines the current knowledge gaps, unmet methodological needs, and describes the challenges in dissecting and understanding the role and regulation of the non-coding transcriptome in cardiovascular disease. These challenges include poor annotation of the non-coding genome, determination of the cellular distribution of transcripts, assessment of the role of RNA processing and identification of cell-type specific changes in cardiovascular physiology and disease. We highlight similarities and differences in the hurdles associated with the analysis of the non-coding and protein-coding transcriptomes. In addition, we discuss how the lack of consensus and absence of standardized methods affect reproducibility of data. These shortcomings should be defeated in order to make significant scientific progress and foster the development of clinically applicable non-coding RNA-based therapeutic strategies to lessen the burden of cardiovascular disease.
Collapse
Affiliation(s)
- Emma L Robinson
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Universiteitssingel 50, 6229 Maastricht University, Maastricht, The Netherlands
- The Division of Cardiology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Andrew H Baker
- Centre for Cardiovascular Science, Queen’s Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh, EH16 4TJ, UK
| | - Mairi Brittan
- Centre for Cardiovascular Science, Queen’s Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh, EH16 4TJ, UK
| | - Ian McCracken
- Centre for Cardiovascular Science, Queen’s Medical Research Institute, University of Edinburgh, 47 Little France Crescent, Edinburgh, EH16 4TJ, UK
| | - G Condorelli
- Humanitas Research Hospital, Humanitas University, Via Manzoni 113, Rozzano, MI 20089, Italy
| | - C Emanueli
- Imperial College, National Heart and Lung Institute, Hammersmith campus, Du Cane Road, London W12 0NN, UK
| | - P K Srivastava
- Imperial College, National Heart and Lung Institute, Hammersmith campus, Du Cane Road, London W12 0NN, UK
| | - C Gaetano
- Laboratorio di Epigenetica, Istituti Clinici Scientifici Maugeri IRCCS, Via Maugeri 4, Pavia 27100, Italy
| | - T Thum
- Hannover Medical School, Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Carl-Neuberg-Straße 1 30625 Hannover, Germany
| | - M Vanhaverbeke
- UZ Gasthuisberg Campus, KU Leuven, Herestraat 49 3000 Leuven, Belgium
| | - C Angione
- Department of Computer Science and Information Systems, Teesside University, Middlesbrough, TS4 3BX, UK
| | - S Heymans
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Universiteitssingel 50, 6229 Maastricht University, Maastricht, The Netherlands
| | - Y Devaux
- Cardiovascular Research Unit, Department of Population Health, Luxembourg Institute of Health, 1A-B, rue Thomas Edison, L-1445 Strassen, Luxembourg
| | - T Pedrazzini
- Experimental Cardiology Unit, Division of Cardiology, Department of Cardiovascular Medicine, University of Lausanne Medical School, 1011 Lausanne, Switzerland
| | - F Martelli
- Molecular Cardiology Laboratory, IRCCS-Policlinico San Donato, Piazza Edmondo Malan, 2, 20097 San Donato, Milan, Italy
| | | |
Collapse
|
10
|
Bischof C, Mirtschink P, Yuan T, Wu M, Zhu C, Kaur J, Pham MD, Gonzalez-Gonoggia S, Hammer M, Rogg EM, Sharma R, Bottermann K, Gercken B, Hagag E, Berthonneche C, Sossalla S, Stehr SN, Maxeiner J, Duda MA, Latreille M, Zamboni N, Martelli F, Pedrazzini T, Dimmeler S, Krishnan J. Mitochondrial-cell cycle cross-talk drives endoreplication in heart disease. Sci Transl Med 2021; 13:eabi7964. [PMID: 34878823 DOI: 10.1126/scitranslmed.abi7964] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
[Figure: see text].
Collapse
Affiliation(s)
- Corinne Bischof
- MRC Clinical Sciences Centre, Imperial College London, London W12 0NN, UK.,Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Peter Mirtschink
- Institute of Clinical Chemistry and Laboratory Medicine, Department of Clinical Pathobiochemistry, University Hospital Dresden, Fetscherstasse 74, 01307 Dresden, Germany
| | - Ting Yuan
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.,Department of Medicine III, Division of Cardiology/Nephrology/Angiology, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Meiqian Wu
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.,Department of Medicine III, Division of Cardiology/Nephrology/Angiology, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Chaonan Zhu
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.,Department of Medicine III, Division of Cardiology/Nephrology/Angiology, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Jaskiran Kaur
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.,Department of Medicine III, Division of Cardiology/Nephrology/Angiology, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Minh Duc Pham
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.,Genome Biologics, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | | | - Marie Hammer
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Eva-Maria Rogg
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Rahul Sharma
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Katharina Bottermann
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Bettina Gercken
- Institute of Clinical Chemistry and Laboratory Medicine, Department of Clinical Pathobiochemistry, University Hospital Dresden, Fetscherstasse 74, 01307 Dresden, Germany
| | - Eman Hagag
- Institute of Clinical Chemistry and Laboratory Medicine, Department of Clinical Pathobiochemistry, University Hospital Dresden, Fetscherstasse 74, 01307 Dresden, Germany
| | - Corinne Berthonneche
- Cardiovascular Assessment Facility, University of Lausanne, CHUV, CH-1011 Lausanne, Switzerland
| | - Samuel Sossalla
- Department of Internal Medicine II, University Medical Center Regensburg, 93053 Regensburg, Germany.,Klinik für Kardiologie und Pneumologie, Georg-August-Universität Goettingen, DZHK (German Centre for Cardiovascular Research), Robert-Koch Str. 40, D-37075 Goettingen, Germany
| | - Sebastian N Stehr
- Department of Anesthesiology and Critical Care Medicine, University Hospital Leipzig, Liebigstrasse 20, D-04103 Leipzig, Germany
| | - Joachim Maxeiner
- Genome Biologics, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Maria Anna Duda
- Genome Biologics, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
| | - Mathieu Latreille
- MRC Clinical Sciences Centre, Imperial College London, London W12 0NN, UK
| | - Nicola Zamboni
- Institute of Molecular Systems Biology, ETH Zurich, Zurich 8093, Switzerland
| | - Fabio Martelli
- Molecular Cardiology Laboratory, IRCCS-Policlinico San Donato, 20097, San Donato Milanese, Milan, Italy
| | - Thierry Pedrazzini
- Department of Medicine, University of Lausanne Medical School, CHUV, MP14-220, 1011 Lausanne, Switzerland
| | - Stefanie Dimmeler
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.,DZHK Partner Site RheinMain, Mainz, Germany.,Cardio-Pulmonary Institute, Giessen, Germany
| | - Jaya Krishnan
- MRC Clinical Sciences Centre, Imperial College London, London W12 0NN, UK.,Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.,Department of Medicine III, Division of Cardiology/Nephrology/Angiology, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany.,Cardio-Pulmonary Institute, Giessen, Germany
| |
Collapse
|
11
|
De Nittis P, Efthymiou S, Sarre A, Guex N, Chrast J, Putoux A, Sultan T, Raza Alvi J, Ur Rahman Z, Zafar F, Rana N, Rahman F, Anwar N, Maqbool S, Zaki MS, Gleeson JG, Murphy D, Galehdari H, Shariati G, Mazaheri N, Sedaghat A, Lesca G, Chatron N, Salpietro V, Christoforou M, Houlden H, Simonds WF, Pedrazzini T, Maroofian R, Reymond A. Inhibition of G-protein signalling in cardiac dysfunction of intellectual developmental disorder with cardiac arrhythmia (IDDCA) syndrome. J Med Genet 2021; 58:815-831. [PMID: 33172956 PMCID: PMC8639930 DOI: 10.1136/jmedgenet-2020-107015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 08/30/2020] [Accepted: 09/04/2020] [Indexed: 11/16/2022]
Abstract
BACKGROUND Pathogenic variants of GNB5 encoding the β5 subunit of the guanine nucleotide-binding protein cause IDDCA syndrome, an autosomal recessive neurodevelopmental disorder associated with cognitive disability and cardiac arrhythmia, particularly severe bradycardia. METHODS We used echocardiography and telemetric ECG recordings to investigate consequences of Gnb5 loss in mouse. RESULTS We delineated a key role of Gnb5 in heart sinus conduction and showed that Gnb5-inhibitory signalling is essential for parasympathetic control of heart rate (HR) and maintenance of the sympathovagal balance. Gnb5-/- mice were smaller and had a smaller heart than Gnb5+/+ and Gnb5+/- , but exhibited better cardiac function. Lower autonomic nervous system modulation through diminished parasympathetic control and greater sympathetic regulation resulted in a higher baseline HR in Gnb5-/- mice. In contrast, Gnb5-/- mice exhibited profound bradycardia on treatment with carbachol, while sympathetic modulation of the cardiac stimulation was not altered. Concordantly, transcriptome study pinpointed altered expression of genes involved in cardiac muscle contractility in atria and ventricles of knocked-out mice. Homozygous Gnb5 loss resulted in significantly higher frequencies of sinus arrhythmias. Moreover, we described 13 affected individuals, increasing the IDDCA cohort to 44 patients. CONCLUSIONS Our data demonstrate that loss of negative regulation of the inhibitory G-protein signalling causes HR perturbations in Gnb5-/- mice, an effect mainly driven by impaired parasympathetic activity. We anticipate that unravelling the mechanism of Gnb5 signalling in the autonomic control of the heart will pave the way for future drug screening.
Collapse
Affiliation(s)
| | - Stephanie Efthymiou
- Department of Neuromuscular Disorders, Queen Square Institute of Neurology, University College London, London, UK
| | - Alexandre Sarre
- Cardiovascular Assessment Facility, University of Lausanne, Lausanne, Switzerland
| | - Nicolas Guex
- Bioinformatics Competence Center, University of Lausanne, Lausanne, Switzerland
| | - Jacqueline Chrast
- Center for Integrative Genomics, University of Lausanne, Lausanne, Switzerland
| | - Audrey Putoux
- Service de Génétique, Hopital Femme Mere Enfant, Bron, France
| | - Tipu Sultan
- Department of Pediatric Neurology, The Children's Hospital and Institute of Child Health, Lahore, Pakistan
| | - Javeria Raza Alvi
- Department of Pediatric Neurology, The Children's Hospital and Institute of Child Health, Lahore, Pakistan
| | - Zia Ur Rahman
- Department of Pediatric Neurology, The Children's Hospital and Institute of Child Health, Lahore, Pakistan
| | - Faisal Zafar
- Department of Paediatric Neurology, Children's Hospital and Institute of Child Health, Multan, Pakistan
| | - Nuzhat Rana
- Department of Paediatric Neurology, Children's Hospital and Institute of Child Health, Multan, Pakistan
| | - Fatima Rahman
- Department of Developmental-Behavioural Paediatrics, The Children's Hospital and Institute of Child Health, Lahore, Pakistan
| | - Najwa Anwar
- Department of Developmental-Behavioural Paediatrics, The Children's Hospital and Institute of Child Health, Lahore, Pakistan
| | - Shazia Maqbool
- Department of Developmental-Behavioural Paediatrics, The Children's Hospital and Institute of Child Health, Lahore, Pakistan
| | - Maha S Zaki
- Clinical Genetics Department, Human Genetics and Genome Research Division, National Research Centre, Cairo, Egypt
| | - Joseph G Gleeson
- Department of Neuroscience and Pediatrics, Howard Hughes Medical Institute, La Jolla, California, USA
| | - David Murphy
- Department of Neuromuscular Disorders, Queen Square Institute of Neurology, University College London, London, UK
| | - Hamid Galehdari
- Department of Genetics, Faculty of Science, Shahid Chamran University of Ahvaz, Ahwaz, Iran (the Islamic Republic of)
| | - Gholamreza Shariati
- Department of Medical Genetics, Faculty of Medicine, Ahvaz Jondishapour University of Medical Sciences, Ahvaz, Iran (the Islamic Republic of)
| | - Neda Mazaheri
- Department of Genetics, Faculty of Science, Shahid Chamran University of Ahvaz, Ahwaz, Iran (the Islamic Republic of)
| | - Alireza Sedaghat
- Health Research Institute, Diabetes Research Center, Ahvaz Jundishapur University of medical Sciences, Ahvaz, Iran (the Islamic Republic of)
| | - Gaetan Lesca
- Service de Genetique, Hospices Civils de Lyon, Lyon, France
| | - Nicolas Chatron
- Center for Integrative Genomics, University of Lausanne, Lausanne, Switzerland
- Service de Genetique, Hospices Civils de Lyon, Lyon, France
| | - Vincenzo Salpietro
- Department of Neuromuscular Disorders, Queen Square Institute of Neurology, University College London, London, UK
| | - Marilena Christoforou
- Department of Neuromuscular Disorders, Queen Square Institute of Neurology, University College London, London, UK
| | - Henry Houlden
- Department of Neuromuscular Disorders, Queen Square Institute of Neurology, University College London, London, UK
| | - William F Simonds
- Metabolic Diseases Branch/NIDDK, National Institutes of Health, Bethesda, MD, USA
| | - Thierry Pedrazzini
- Experimental Cardiology Unit, Department of Cardiovascular Medicine, University of Lausanne, Lausanne, Switzerland
| | - Reza Maroofian
- Department of Neuromuscular Disorders, Queen Square Institute of Neurology, University College London, London, UK
| | - Alexandre Reymond
- Center for Integrative Genomics, University of Lausanne, Lausanne, Switzerland
| |
Collapse
|
12
|
Kay M, Soltani BM, Nemir M, Aghagolzadeh P, Pezzuto I, Chouvardas P, Ruberto F, Movahedi F, Ansari H, Baharvand H, Pedrazzini T. The conserved long noncoding RNA CARMA regulates cardiomyocyte differentiation. Cardiovasc Res 2021; 118:2339-2353. [PMID: 34459880 DOI: 10.1093/cvr/cvab281] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 08/26/2021] [Indexed: 12/13/2022] Open
Abstract
AIMS Production of functional cardiomyocytes from pluripotent stem cells requires tight control of the differentiation process. Long noncoding RNAs (lncRNAs) exert critical regulatory function in cell specification during development. In this study, we designed an integrated approach to identify lncRNAs implicated in cardiogenesis in differentiating human embryonic stem cells (ESCs). METHODS AND RESULTS We identified CARMA (CARdiomyocyte Maturation-Associated lncRNA), a conserved lncRNA controlling cardiomyocyte differentiation and maturation in human ESCs. CARMA is located adjacent to MIR-1-1HG, the host gene for two cardiogenic miRNAs: MIR1-1 and MIR-133a2, and transcribed in an antisense orientation. The expression of CARMA and the miRNAs is negatively correlated, and CARMA knockdown increases MIR1-1 and MIR-133a2 expression. In addition, CARMA possesses MIR-133a2 binding sites, suggesting the lncRNA could be also a target of miRNA action. Upon CARMA downregulation, MIR-133a2 target protein-coding genes are coordinately downregulated. Among those, we found RBPJ, the gene encoding the effector of the NOTCH pathway. NOTCH has been shown to control a binary cell fate decision between the mesoderm and the neuroectoderm lineages, and NOTCH inhibition leads to enhanced cardiomyocyte differentiation at the expense of neuroectodermal derivatives. Interestingly, two lncRNAs, linc1230 and linc1335, which are known repressors of neuroectodermal specification, were found upregulated upon Notch1 silencing in ESCs. Forced expression of either linc1230 or linc1335 improved ESC-derived cardiomyocyte production. These two lncRNAs were also found upregulated following CARMA knockdown in ESCs. CONCLUSIONS Altogether, these data suggest the existence of a network, implicating three newly identified lncRNAs, the two myomirs MIR1-1 and MIR-133a2 and the NOTCH signaling pathway, for the coordinated regulation of cardiogenic differentiation in ESCs. TRANSLATIONAL PERSPECTIVE Cardiac dysfunction and heart failure develop secondary to a massive loss of cardiomyocytes in the damaged myocardium. Several avenues have been evaluated to promote regeneration following injury. Cell therapy for heart disease envisages the production of functional cardiomyocytes from differentiating pluripotent stem cells prior transfer into the injured heart muscle. Here, we report the functional characterization of CARMA, a lncRNA implicated in cardiogenesis. CARMA knockdown in differentiating human embryonic stem cells (ESCs) promotes cardiogenic commitment and cardiomyocyte differentiation. CARMA represents therefore a novel target for improving human ESC-derived cardiomyocyte production, and cell-based regenerative strategies for heart disease.
Collapse
Affiliation(s)
- Maryam Kay
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran.,Experimental Cardiology Unit, Divison of Cardiology, Department of Cardiovascular Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Bahram M Soltani
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mohamed Nemir
- Experimental Cardiology Unit, Divison of Cardiology, Department of Cardiovascular Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Parisa Aghagolzadeh
- Experimental Cardiology Unit, Divison of Cardiology, Department of Cardiovascular Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Iole Pezzuto
- Experimental Cardiology Unit, Divison of Cardiology, Department of Cardiovascular Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | | | - Francesco Ruberto
- Experimental Cardiology Unit, Divison of Cardiology, Department of Cardiovascular Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Fatemeh Movahedi
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, Tehran, Iran
| | - Hassan Ansari
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, Tehran, Iran
| | - Hossein Baharvand
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, Tehran, Iran
| | - Thierry Pedrazzini
- Experimental Cardiology Unit, Divison of Cardiology, Department of Cardiovascular Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| |
Collapse
|
13
|
Triposkiadis F, Butler J, Abboud FM, Armstrong PW, Adamopoulos S, Atherton JJ, Backs J, Bauersachs J, Burkhoff D, Bonow RO, Chopra VK, de Boer RA, de Windt L, Hamdani N, Hasenfuss G, Heymans S, Hulot JS, Konstam M, Lee RT, Linke WA, Lunde IG, Lyon AR, Maack C, Mann DL, Mebazaa A, Mentz RJ, Nihoyannopoulos P, Papp Z, Parissis J, Pedrazzini T, Rosano G, Rouleau J, Seferovic PM, Shah AM, Starling RC, Tocchetti CG, Trochu JN, Thum T, Zannad F, Brutsaert DL, Segers VF, De Keulenaer GW. The continuous heart failure spectrum: moving beyond an ejection fraction classification. Eur Heart J 2020; 40:2155-2163. [PMID: 30957868 DOI: 10.1093/eurheartj/ehz158] [Citation(s) in RCA: 169] [Impact Index Per Article: 42.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 01/05/2019] [Accepted: 03/08/2019] [Indexed: 12/17/2022] Open
Abstract
Randomized clinical trials initially used heart failure (HF) patients with low left ventricular ejection fraction (LVEF) to select study populations with high risk to enhance statistical power. However, this use of LVEF in clinical trials has led to oversimplification of the scientific view of a complex syndrome. Descriptive terms such as 'HFrEF' (HF with reduced LVEF), 'HFpEF' (HF with preserved LVEF), and more recently 'HFmrEF' (HF with mid-range LVEF), assigned on arbitrary LVEF cut-off points, have gradually arisen as separate diseases, implying distinct pathophysiologies. In this article, based on pathophysiological reasoning, we challenge the paradigm of classifying HF according to LVEF. Instead, we propose that HF is a heterogeneous syndrome in which disease progression is associated with a dynamic evolution of functional and structural changes leading to unique disease trajectories creating a spectrum of phenotypes with overlapping and distinct characteristics. Moreover, we argue that by recognizing the spectral nature of the disease a novel stratification will arise from new technologies and scientific insights that will shape the design of future trials based on deeper understanding beyond the LVEF construct alone.
Collapse
Affiliation(s)
| | - Javed Butler
- Department of Medicine-L650, University of Mississippi Medical Center, Jackson, MS, USA
| | - Francois M Abboud
- Abboud Cardiovascular Research Center, University of Iowa, Iowa City, IA, USA
| | - Paul W Armstrong
- Canadian VIGOUR Centre, University of Alberta, Edmonton, Alberta, Canada
| | - Stamatis Adamopoulos
- Transplant and Mechanical Circulatory Support Unit, Onassis Cardiac Surgery Center, Athens, Greece
| | - John J Atherton
- Department of Cardiology, Royal Brisbane and Women's Hospital, University of Queensland School of Medicine, Brisbane, Australia
| | - Johannes Backs
- Department of Molecular Cardiology and Epigenetics, Heidelberg University, Heidelberg, Germany
| | - Johann Bauersachs
- Department of Cardiology and Angiology, Hannover Medical School, Hannover, Germany
| | | | - Robert O Bonow
- Bluhm Cardiovascular Institute, Northwestern University Feinberg School of Medicine, Northwestern Memorial Hospital, Chicago, IL, USA
| | - Vijay K Chopra
- Department of Cardiology, Medanta Medicity, Gurugram, Haryana, India
| | - Rudolf A de Boer
- Department of Cardiology, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
| | - Leon de Windt
- Department of Cardiology, Faculty of Health, Medicine and Life Sciences, School for Cardiovascular Diseases, Maastricht University, Maastricht, The Netherlands
| | - Nazha Hamdani
- Department of Systems Physiology, Ruhr University Bochum, Bochum, Germany
| | - Gerd Hasenfuss
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Stephane Heymans
- Department of Cardiology, CARIM School for Cardiovascular Diseases Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
| | - Jean-Sébastien Hulot
- Université Paris-Descartes, Sorbonne Paris Cité, Paris, France.,Paris Cardiovascular Research Center, INSERM UMR 970, Paris, France.,Hôpital Européen Georges Pompidou, AP-HP, Paris, France
| | - Marvin Konstam
- The CardioVascular Center of Tufts Medical Center, Boston, MA, USA
| | - Richard T Lee
- Department of Stem Cell and Regenerative Biology, Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA
| | - Wolfgang A Linke
- Institute of Physiology II, University of Münster, Münster, Germany
| | - Ida G Lunde
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Alexander R Lyon
- Cardiovascular Research Centre, Royal Brompton Hospital, London, UK.,National Heart and Lung Institute, Imperial College London, London, UK
| | - Christoph Maack
- Comprehensive Heart Failure Center, University Clinic Würzburg, Würzburg, Germany
| | - Douglas L Mann
- Department of Medicine, Center for Cardiovascular Research, Washington University School of Medicine, St. Louis Missouri, MO, USA
| | - Alexandre Mebazaa
- Department of Anaesthesiology and Critical Care Medicine, AP-HP, Saint Louis and Lariboisière University Hospitals, Inserm U 942, Paris, France
| | | | | | - Zoltan Papp
- Division of Clinical Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - John Parissis
- Heart Failure Unit, Department of Cardiology, Attikon University Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Thierry Pedrazzini
- Experimental Cardiology Unit, Department of Cardiovascular Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Giuseppe Rosano
- Department of Medical Sciences, IRCCS San Raffaele, Centre for Clinical and Basic Research, Pisana Rome, Italy
| | - Jean Rouleau
- Montreal Heart Institute and University of Montreal, Montreal, Quebec, Canada
| | | | - Ajay M Shah
- School of Cardiovascular Medicine & Sciences, British Heart Foundation Centre, King's College London, London, UK
| | | | - Carlo G Tocchetti
- Department of Translational Medical Sciences, Federico II University, Naples, Italy
| | - Jean-Noel Trochu
- CIC INSERM 1413, Institut du thorax, UMR INSERM 1087, University Hospital of Nantes, Nantes, France
| | - Thomas Thum
- Institute of Molecular and Translational Therapeutic Strategies, Hannover Medical School, Hanover, Germany
| | - Faiez Zannad
- Inserm CIC 1433, Université de Lorrain, CHU de Nancy, Nancy, France
| | | | - Vincent F Segers
- Laboratory of Physiopharmacology, Antwerp University, Universiteitsplein 1, Building T, Wilrijk, Antwerp, Belgium.,Division of Cardiology, Antwerp University Hospital, Edegem, Belgium
| | - Gilles W De Keulenaer
- Laboratory of Physiopharmacology, Antwerp University, Universiteitsplein 1, Building T, Wilrijk, Antwerp, Belgium.,ZNA Hartcentrum, Antwerp, Belgium
| |
Collapse
|
14
|
Aghagolzadeh P, Bernasconi R, Nemir M, Khalil H, Pulido C, Chouvardas P, Johnson R, Pedrazzini T. Single-cell analysis of the long noncoding RNA transcriptome identifies novel therapeutic targets for cardiac fibrosis. Archives of Cardiovascular Diseases Supplements 2020. [DOI: 10.1016/j.acvdsp.2020.03.105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
15
|
Ruberto F, Maric D, Tatjana K, Braga L, Nemir M, Sarre A, Manley S, Giacca M, Pedrazzini T. Clipper, a novel lncRNA regulating cardiomyocyte mitochondrial biogenesis and proliferation. Archives of Cardiovascular Diseases Supplements 2020. [DOI: 10.1016/j.acvdsp.2020.03.081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
16
|
Robinson EL, Pedrosa da Costa Gomes C, Potočnjak I, Hellemans J, Betsou F, de Gonzalo-Calvo D, Stoll M, Birhan Yilmaz M, Ágg B, Beis D, Carmo-Fonseca M, Enguita FJ, Dogan S, Tuna BG, Schroen B, Ammerlaan W, Kuster GM, Carpusca I, Pedrazzini T, Emanueli C, Martelli F, Devaux Y. A Year in the Life of the EU-CardioRNA COST Action: CA17129 Catalysing Transcriptomics Research in Cardiovascular Disease. Noncoding RNA 2020; 6:E17. [PMID: 32443579 PMCID: PMC7345156 DOI: 10.3390/ncrna6020017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 05/11/2020] [Indexed: 02/07/2023] Open
Abstract
The EU-CardioRNA Cooperation in Science and Technology (COST) Action is a European-wide consortium established in 2018 with 31 European country members and four associate member countries to build bridges between translational researchers from academia and industry who conduct research on non-coding RNAs, cardiovascular diseases and similar research areas. EU-CardioRNA comprises four core working groups (WG1-4). In the first year since its launch, EU-CardioRNA met biannually to exchange and discuss recent findings in related fields of scientific research, with scientific sessions broadly divided up according to WG. These meetings are also an opportunity to establish interdisciplinary discussion groups, brainstorm ideas and make plans to apply for joint research grants and conduct other scientific activities, including knowledge transfer. Following its launch in Brussels in 2018, three WG meetings have taken place. The first of these in Lisbon, Portugal, the second in Istanbul, Turkey, and the most recent in Maastricht, The Netherlands. Each meeting includes a scientific session from each WG. This meeting report briefly describes the highlights and key take-home messages from each WG session in this first successful year of the EU-CardioRNA COST Action.
Collapse
Affiliation(s)
- Emma Louise Robinson
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, 6229 ER Maastricht, The Netherlands;
| | | | - Ines Potočnjak
- Institute for Clinical Medical Research and Education, University Hospital Centre Sisters of Charity, Zagreb 10 000, Croatia;
| | | | - Fay Betsou
- Integrated BioBank of Luxembourg, L-3555 Dudelange, Luxembourg; (F.B.); (W.A.)
| | - David de Gonzalo-Calvo
- Translational Research in Respiratory Medicine, University Hospital Arnau de Vilanova and Santa Maria, IRBLleida, 25198 Lleida, Spain;
| | - Monika Stoll
- Institute of Human Genetics, Genetic Epidemiology, University of Münster, 48149 Münster, Germany;
| | - Mehmet Birhan Yilmaz
- Department of Cardiology, Faculty of Medicine, Dokuz Eylül University, İzmir 35330, Turkey;
| | - Bence Ágg
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, H-1085 Budapest, Hungary;
- Pharmahungary Group, H-6722 Szeged, Hungary
| | - Dimitris Beis
- Centre for Clinical, Experimental Surgery, & Translational Research, Biomedical Research Foundation, Academy of Athens, 115 27 Athens, Greece;
| | - Maria Carmo-Fonseca
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; (M.C.-F.); (F.J.E.)
| | - Francisco J. Enguita
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisbon, Portugal; (M.C.-F.); (F.J.E.)
| | - Soner Dogan
- Department of Medical Biology, School of Medicine, Yeditepe University, Istanbul 34755, Turkey;
| | - Bilge G. Tuna
- Department of Biophysics, School of Medicine, Yeditepe University, Istanbul 34755, Turkey
| | - Blanche Schroen
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, 6229 ER Maastricht, The Netherlands;
| | - Wim Ammerlaan
- Integrated BioBank of Luxembourg, L-3555 Dudelange, Luxembourg; (F.B.); (W.A.)
| | - Gabriela M. Kuster
- Department of Biomedicine, University Hospital Basel and University of Basel, 4031 Basel, Switzerland;
| | - Irina Carpusca
- Cardiovascular Research Unit, Luxembourg Institute of Health, L-1445 Strassen, Luxembourg; (C.P.d.C.G.); (I.C.)
| | - Thierry Pedrazzini
- Department of Medicine, University of Lausanne Medical School, 1005 Lausanne, Switzerland;
| | - Costanza Emanueli
- National Heart and Lung Institute, Imperial College London, London SW3 6LY, UK;
| | - Fabio Martelli
- Molecular Cardiology Laboratory, Policlinico San Donato IRCCS, San Donato Milanese, 20097 Milan, Italy;
| | - Yvan Devaux
- Cardiovascular Research Unit, Luxembourg Institute of Health, L-1445 Strassen, Luxembourg; (C.P.d.C.G.); (I.C.)
| | | |
Collapse
|
17
|
Plaisance I, Nemir M, Silakhor PA, Chouvardas P, de los Reyes S, Khalil H, Johnson R, Pedrazzini T. CARMEN-201, a specific isoform of an enhancer-associated long noncoding RNA controls smooth-muscle lineage specification in human cardiac precursor. Cytotherapy 2020. [DOI: 10.1016/j.jcyt.2020.03.095] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
18
|
Mirtschink P, Bischof C, Pham MD, Sharma R, Khadayate S, Rossi G, Fankhauser N, Traub S, Sossalla S, Hagag E, Berthonneche C, Sarre A, Stehr SN, Grote P, Pedrazzini T, Dimmeler S, Krek W, Krishnan J. Inhibition of the Hypoxia-Inducible Factor 1α-Induced Cardiospecific HERNA1 Enhance-Templated RNA Protects From Heart Disease. Circulation 2019; 139:2778-2792. [PMID: 30922078 PMCID: PMC6571183 DOI: 10.1161/circulationaha.118.036769] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Supplemental Digital Content is available in the text. Background: Enhancers are genomic regulatory elements conferring spatiotemporal and signal-dependent control of gene expression. Recent evidence suggests that enhancers can generate noncoding enhancer RNAs, but their (patho)biological functions remain largely elusive. Methods: We performed chromatin immunoprecipitation–coupled sequencing of histone marks combined with RNA sequencing of left ventricular biopsies from experimental and genetic mouse models of human cardiac hypertrophy to identify transcripts revealing enhancer localization, conservation with the human genome, and hypoxia-inducible factor 1α dependence. The most promising candidate, hypoxia-inducible enhancer RNA (HERNA)1, was further examined by investigating its capacity to modulate neighboring coding gene expression by binding to their gene promoters by using chromatin isolation by RNA purification and λN–BoxB tethering–based reporter assays. The role of HERNA1 and its neighboring genes for pathological stress–induced growth and contractile dysfunction, and the therapeutic potential of HERNA1 inhibition was studied in gapmer-mediated loss-of-function studies in vitro using human induced pluripotent stem cell–derived cardiomyocytes and various in vivo models of human pathological cardiac hypertrophy. Results: HERNA1 is robustly induced on pathological stress. Production of HERNA1 is initiated by direct hypoxia-inducible factor 1α binding to a hypoxia-response element in the histoneH3-lysine27acetylation marks–enriched promoter of the enhancer and confers hypoxia responsiveness to nearby genes including synaptotagmin XVII, a member of the family of membrane-trafficking and Ca2+-sensing proteins and SMG1, encoding a phosphatidylinositol 3-kinase–related kinase. Consequently, a substrate of SMG1, ATP-dependent RNA helicase upframeshift 1, is hyperphoshorylated in a HERNA1- and SMG1-dependent manner. In vitro and in vivo inactivation of SMG1 and SYT17 revealed overlapping and distinct roles in modulating cardiac hypertrophy. Finally, in vivo administration of antisense oligonucleotides targeting HERNA1 protected mice from stress-induced pathological hypertrophy. The inhibition of HERNA1 postdisease development reversed left ventricular growth and dysfunction, resulting in increased overall survival. Conclusions: HERNA1 is a novel heart-specific noncoding RNA with key regulatory functions in modulating the growth, metabolic, and contractile gene program in disease, and reveals a molecular target amenable to therapeutic exploitation.
Collapse
MESH Headings
- Animals
- Binding Sites
- Cardiomyopathy, Dilated/genetics
- Cardiomyopathy, Dilated/metabolism
- Cardiomyopathy, Dilated/pathology
- Cardiomyopathy, Dilated/prevention & control
- Cardiomyopathy, Hypertrophic/genetics
- Cardiomyopathy, Hypertrophic/metabolism
- Cardiomyopathy, Hypertrophic/pathology
- Cardiomyopathy, Hypertrophic/prevention & control
- Case-Control Studies
- Disease Models, Animal
- HEK293 Cells
- Humans
- Hypoxia-Inducible Factor 1, alpha Subunit/deficiency
- Hypoxia-Inducible Factor 1, alpha Subunit/genetics
- Hypoxia-Inducible Factor 1, alpha Subunit/metabolism
- Male
- Mice, Inbred C57BL
- Mice, Knockout
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/pathology
- Oligonucleotides, Antisense/administration & dosage
- Promoter Regions, Genetic
- RNA, Untranslated/genetics
- RNA, Untranslated/metabolism
- Signal Transduction
- Von Hippel-Lindau Tumor Suppressor Protein/genetics
- Von Hippel-Lindau Tumor Suppressor Protein/metabolism
Collapse
Affiliation(s)
- Peter Mirtschink
- Institute of Molecular Health Sciences, ETH Zurich, Switzerland (P.M., G.R., N.F., S.T., W.K.)
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Dresden, Germany (P.M., E.H.)
| | - Corinne Bischof
- MRC Clinical Sciences Centre, Imperial College London, United Kingdom (C.B., S.K., J.K.)
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe-University Frankfurt, Germany (C.B., M.-D.P., R.S., P.G., S.D., J.K.)
| | - Minh-Duc Pham
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe-University Frankfurt, Germany (C.B., M.-D.P., R.S., P.G., S.D., J.K.)
| | - Rahul Sharma
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe-University Frankfurt, Germany (C.B., M.-D.P., R.S., P.G., S.D., J.K.)
| | - Sanjay Khadayate
- MRC Clinical Sciences Centre, Imperial College London, United Kingdom (C.B., S.K., J.K.)
| | - Geetha Rossi
- Institute of Molecular Health Sciences, ETH Zurich, Switzerland (P.M., G.R., N.F., S.T., W.K.)
| | - Niklaus Fankhauser
- Institute of Molecular Health Sciences, ETH Zurich, Switzerland (P.M., G.R., N.F., S.T., W.K.)
| | - Shuyang Traub
- Institute of Molecular Health Sciences, ETH Zurich, Switzerland (P.M., G.R., N.F., S.T., W.K.)
| | - Samuel Sossalla
- Department of Internal Medicine III: Cardiology and Angiology, University of Kiel, Germany (S.S.)
- Klinik für Kardiologie und Pneumologie, Georg-August-Universität Goettingen and DZHK (German Centre for Cardiovascular Research) (S.S.)
| | - Eman Hagag
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Dresden, Germany (P.M., E.H.)
| | - Corinne Berthonneche
- Cardiovascular Assessment Facility, University of Lausanne and CHUV, Switzerland (C.B., A.S.)
| | - Alexandre Sarre
- Cardiovascular Assessment Facility, University of Lausanne and CHUV, Switzerland (C.B., A.S.)
| | - Sebastian. N. Stehr
- Department of Anesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, and Department of Anesthesiology and Intensive Care Medicine, University Hospital Leipzig, Germany (S.N.S.)
| | - Phillip Grote
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe-University Frankfurt, Germany (C.B., M.-D.P., R.S., P.G., S.D., J.K.)
| | - Thierry Pedrazzini
- Department of Medicine, University of Lausanne Medical School, Switzerland (T.P.)
| | - Stefanie Dimmeler
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe-University Frankfurt, Germany (C.B., M.-D.P., R.S., P.G., S.D., J.K.)
| | - Wilhelm Krek
- Institute of Molecular Health Sciences, ETH Zurich, Switzerland (P.M., G.R., N.F., S.T., W.K.)
| | - Jaya Krishnan
- MRC Clinical Sciences Centre, Imperial College London, United Kingdom (C.B., S.K., J.K.)
- Institute of Cardiovascular Regeneration, Centre for Molecular Medicine, Goethe-University Frankfurt, Germany (C.B., M.-D.P., R.S., P.G., S.D., J.K.)
| |
Collapse
|
19
|
Puttini S, Plaisance I, Barile L, Cervio E, Milano G, Marcato P, Pedrazzini T, Vassalli G. ALDH1A3 Is the Key Isoform That Contributes to Aldehyde Dehydrogenase Activity and Affects in Vitro Proliferation in Cardiac Atrial Appendage Progenitor Cells. Front Cardiovasc Med 2018; 5:90. [PMID: 30087899 PMCID: PMC6066537 DOI: 10.3389/fcvm.2018.00090] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 06/25/2018] [Indexed: 12/23/2022] Open
Abstract
High aldehyde dehydrogenase (ALDHhi) activity has been reported in normal and cancer stem cells. We and others have shown previously that human ALDHhi cardiac atrial appendage cells are enriched with stem/progenitor cells. The role of ALDH in these cells is poorly understood but it may come down to the specific ALDH isoform(s) expressed. This study aimed to compare ALDHhi and ALDHlo atrial cells and to identify the isoform(s) that contribute to ALDH activity, and their functional role. Methods and Results: Cells were isolated from atrial appendage specimens from patients with ischemic and/or valvular heart disease undergoing heart surgery. ALDHhi activity assessed with the Aldefluor reagent coincided with primitive surface marker expression (CD34+). Depending on their ALDH activity, RT-PCR analysis of ALDHhi and ALDHlo cells demonstrated a differential pattern of pluripotency genes (Oct 4, Nanog) and genes for more established cardiac lineages (Nkx2.5, Tbx5, Mef2c, GATA4). ALDHhi cells, but not ALDHlo cells, formed clones and were culture-expanded. When cultured under cardiac differentiation conditions, ALDHhi cells gave rise to a higher number of cardiomyocytes compared with ALDHlo cells. Among 19 ALDH isoforms known in human, ALDH1A3 was most highly expressed in ALDHhi atrial cells. Knocking down ALDH1A3, but not ALDH1A1, ALDH1A2, ALDH2, ALDH4A1, or ALDH8A1 using siRNA decreased ALDH activity and cell proliferation in ALDHhi cells. Conversely, overexpressing ALDH1A3 with a retroviral vector increased proliferation in ALDHlo cells. Conclusions: ALDH1A3 is the key isoform responsible for ALDH activity in ALDHhi atrial appendage cells, which have a propensity to differentiate into cardiomyocytes. ALDH1A3 affects in vitro proliferation of these cells.
Collapse
Affiliation(s)
- Stefania Puttini
- Cardiovascular Department, CHUV University Hospital, Lausanne, Switzerland
| | - Isabelle Plaisance
- Cardiovascular Department, CHUV University Hospital, Lausanne, Switzerland
| | - Lucio Barile
- Cardiocentro Ticino Foundation and Swiss Institute for Regenerative Medicine, Lugano, Switzerland
| | - Elisabetta Cervio
- Cardiocentro Ticino Foundation and Swiss Institute for Regenerative Medicine, Lugano, Switzerland
| | - Giuseppina Milano
- Cardiovascular Department, CHUV University Hospital, Lausanne, Switzerland.,Cardiocentro Ticino Foundation and Swiss Institute for Regenerative Medicine, Lugano, Switzerland
| | - Paola Marcato
- Departments of Pathology, Microbiology and Immunology, Dalhousie University, Halifax, NS, Canada
| | - Thierry Pedrazzini
- Cardiovascular Department, CHUV University Hospital, Lausanne, Switzerland
| | - Giuseppe Vassalli
- Cardiovascular Department, CHUV University Hospital, Lausanne, Switzerland.,Cardiocentro Ticino Foundation and Swiss Institute for Regenerative Medicine, Lugano, Switzerland
| |
Collapse
|
20
|
Micheletti R, Plaisance I, Abraham BJ, Sarre A, Ting CC, Alexanian M, Maric D, Maison D, Nemir M, Young RA, Schroen B, González A, Ounzain S, Pedrazzini T. The long noncoding RNA Wisper controls cardiac fibrosis and remodeling. Sci Transl Med 2018. [PMID: 28637928 DOI: 10.1126/scitranslmed.aai9118] [Citation(s) in RCA: 207] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Long noncoding RNAs (lncRNAs) are emerging as powerful regulators of cardiac development and disease. However, our understanding of the importance of these molecules in cardiac fibrosis is limited. Using an integrated genomic screen, we identified Wisper (Wisp2 super-enhancer-associated RNA) as a cardiac fibroblast-enriched lncRNA that regulates cardiac fibrosis after injury. Wisper expression was correlated with cardiac fibrosis both in a murine model of myocardial infarction (MI) and in heart tissue from human patients suffering from aortic stenosis. Loss-of-function approaches in vitro using modified antisense oligonucleotides (ASOs) demonstrated that Wisper is a specific regulator of cardiac fibroblast proliferation, migration, and survival. Accordingly, ASO-mediated silencing of Wisper in vivo attenuated MI-induced fibrosis and cardiac dysfunction. Functionally, Wisper regulates cardiac fibroblast gene expression programs critical for cell identity, extracellular matrix deposition, proliferation, and survival. In addition, its association with TIA1-related protein allows it to control the expression of a profibrotic form of lysyl hydroxylase 2, implicated in collagen cross-linking and stabilization of the matrix. Together, our findings identify Wisper as a cardiac fibroblast-enriched super-enhancer-associated lncRNA that represents an attractive therapeutic target to reduce the pathological development of cardiac fibrosis in response to MI and prevent adverse remodeling in the damaged heart.
Collapse
Affiliation(s)
- Rudi Micheletti
- Experimental Cardiology Unit, Department of Cardiovascular Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Isabelle Plaisance
- Experimental Cardiology Unit, Department of Cardiovascular Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Brian J Abraham
- Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA
| | - Alexandre Sarre
- Cardiovascular Assessment Facility, University of Lausanne, Lausanne, Switzerland
| | - Ching-Chia Ting
- Experimental Cardiology Unit, Department of Cardiovascular Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Michael Alexanian
- Experimental Cardiology Unit, Department of Cardiovascular Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Daniel Maric
- Experimental Cardiology Unit, Department of Cardiovascular Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Damien Maison
- Experimental Cardiology Unit, Department of Cardiovascular Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Mohamed Nemir
- Experimental Cardiology Unit, Department of Cardiovascular Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Richard A Young
- Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA.,Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Blanche Schroen
- Center for Heart Failure Research, Department of Cardiology, CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, Netherlands
| | - Arantxa González
- Centre for Applied Medical Research, University of Navarra, Pamplona, Spain.,National Institute of Health Carlos III, Madrid, Spain
| | - Samir Ounzain
- Experimental Cardiology Unit, Department of Cardiovascular Medicine, University of Lausanne Medical School, Lausanne, Switzerland.
| | - Thierry Pedrazzini
- Experimental Cardiology Unit, Department of Cardiovascular Medicine, University of Lausanne Medical School, Lausanne, Switzerland.
| |
Collapse
|
21
|
Abstract
Mammalian genomes are pervasively transcribed generating thousands of long noncoding RNAs (lncRNAs) with emergent regulatory roles. Many of these lncRNAs exhibit highly specialised expression patterns during development and typically flank and regulate key developmental factors. In this review, we discuss and summarise the latest advances in our understanding of the roles of lncRNAs during mesendoderm (ME) specification, a key step during gastrulation and the formation of the primitive streak (PS).
Collapse
Affiliation(s)
- Michael Alexanian
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Thierry Pedrazzini
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Samir Ounzain
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| |
Collapse
|
22
|
Plaisance I, Perruchoud S, Fernandez-Tenorio M, Gonzales C, Ounzain S, Ruchat P, Nemir M, Niggli E, Pedrazzini T. Cardiomyocyte Lineage Specification in Adult Human Cardiac Precursor Cells Via Modulation of Enhancer-Associated Long Noncoding RNA Expression. JACC Basic Transl Sci 2016; 1:472-493. [PMID: 29707678 PMCID: PMC5916868 DOI: 10.1016/j.jacbts.2016.06.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Human CPCs produce predominantly smooth muscle cells. CPCs can be redirected to the cardiomyocyte fate by transient activation followed by inhibition of NOTCH signaling. Inhibition of NOTCH signaling during differentiation represses MIR-143/145 expression and blocks smooth muscle differentiation. Expression of the microRNAs is under control of CARMEN, a long noncoding RNA associated with an enhancer located in the MIR-143/145 locus and target of NOTCH signaling. The CARMEN/MIR-145/143 locus represents a promising therapeutic target to favor production of cardiomyocytes in cell replacement therapies.
The mechanisms controlling differentiation in adult cardiac precursor cells (CPCs) are still largely unknown. In this study, CPCs isolated from the human heart were found to produce predominantly smooth muscle cells but could be redirected to the cardiomyocyte fate by transient activation followed by inhibition of NOTCH signaling. NOTCH inhibition repressed MIR-143/145 expression, and blocked smooth muscle differentiation. Expression of the microRNAs is under control of CARMEN, a long noncoding RNA associated with an enhancer located in the MIR-143/145 locus and target of NOTCH signaling. The CARMEN/MIR-145/143 axis represents, therefore, a promising target to favor production of cardiomyocytes in cell replacement therapies.
Collapse
Affiliation(s)
- Isabelle Plaisance
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Stéphanie Perruchoud
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | | | - Christine Gonzales
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Samir Ounzain
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Patrick Ruchat
- Department of Cardiovascular Surgery, University of Lausanne Medical School, Lausanne, Switzerland
| | - Mohamed Nemir
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Ernst Niggli
- Department of Physiology, University of Bern, Bern, Switzerland
| | - Thierry Pedrazzini
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland
- Reprint requests and correspondence: Dr. Thierry Pedrazzini, Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, CH-1011 Lausanne, Switzerland.
| |
Collapse
|
23
|
Affiliation(s)
- Samir Ounzain
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Thierry Pedrazzini
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| |
Collapse
|
24
|
Porrello ER, Huggins CE, Curl CI, Domenighetti AA, Pedrazzini T, Delbridge LMD, Morgan TO. Elevated dietary sodium intake exacerbates myocardial hypertrophy associated with cardiac-specific overproduction of angiotensin II. J Renin Angiotensin Aldosterone Syst 2016; 5:169-75. [PMID: 15806712 DOI: 10.3317/jraas.2004.036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Introduction/hypothesis Cardiac hypertrophy is an independent risk factor predictive of cardiovascular disease and is significantly associated with morbidity and mortality. The mechanism by which angiotensin II (Ang II) and dietary sodium exert additive effects on the development of cardiac hypertrophy is unclear. The goal of this study was to evaluate the hypothesis that, where there is a genetic predisposition to Ang II-dependent hypertrophy, there is also an increased susceptibility to sodium-induced hypertrophy mediated by AT1-receptor expression. Methods Diets of low sodium (LS, 0.3% w:w) and high sodium (HS, 4.0% w:w) content were fed to adult (age 25 weeks) control wild-type mice (WT) and to weeks) control wild-type mice (WT) and to transgenic mice exhibiting cardiac specific overexpression of angiotensinogen (TG). At the conclusion of a 40-day dietary treatment period, cardiac tissue weights were compared and the relative expression levels of Ang II receptor subtypes (AT1A and AT2) were evaluated using RT-PCR. Results WT and TG mice fed HS and LS diets maintained comparable weight gains during the treatment period. The normalised heart weights of TG mice were elevated compared to WT, and the extent of the increase was greater for mice maintained on the HS diet treatments (WT 12% vs. TG 41% increase in cardiac weight index). While a similar pattern of growth was observed for ventricular tissues, the atrial weight parameters demonstrated an additional significant effect of dietary sodium intake on tissue weight, independent of animal genetic type. No differences in the relative (GAPDH normalised) expression levels of AT1A- and AT2-receptor mRNA were observed between diet or animal genetic groups. Conclusion This study demonstrates that, where there is a pre-existing genetic condition of Ang II-dependent cardiac hypertrophy, the pro-growth effect of elevated dietary sodium intake is selectively augmented. In TG and WT mice, this effect was evident with a relatively short dietary treatment intervention (40 days). Evaluation of the levels of Ang II receptor mRNA further demonstrated that this differential growth response was not associated with an altered relative expression of either AT1A- or AT2-receptor subtypes. The cellular mechanistic bases for this specific Ang II-dietary sodium interaction remain to be elucidated.
Collapse
Affiliation(s)
- Enzo R Porrello
- Department of Physiology, University of Melbourne, Parkville, Victoria 3010, Australia
| | | | | | | | | | | | | |
Collapse
|
25
|
Ounzain S, Pedrazzini T. Divergent Paths Lnc Cell Fates. Cell Stem Cell 2016; 18:561-2. [PMID: 27152437 DOI: 10.1016/j.stem.2016.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Long noncoding RNAs (lncRNAs) comprise a class of regulatory molecules that may control diverse stem cell properties. Now in Cell Stem Cell, Luo et al. (2016) show that a specific group of lncRNAs, those transcribed divergently from protein coding genes, activate key developmental genes to control embryonic stem cell fate.
Collapse
Affiliation(s)
- Samir Ounzain
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, 1011 Lausanne, Switzerland.
| | - Thierry Pedrazzini
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, 1011 Lausanne, Switzerland.
| |
Collapse
|
26
|
Crippa S, Nemir M, Ounzain S, Ibberson M, Berthonneche C, Sarre A, Boisset G, Maison D, Harshman K, Xenarios I, Diviani D, Schorderet D, Pedrazzini T. Comparative transcriptome profiling of the injured zebrafish and mouse hearts identifies miRNA-dependent repair pathways. Cardiovasc Res 2016; 110:73-84. [PMID: 26857418 PMCID: PMC4798047 DOI: 10.1093/cvr/cvw031] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Accepted: 01/28/2016] [Indexed: 02/07/2023] Open
Abstract
Aims The adult mammalian heart has poor regenerative capacity. In contrast, the zebrafish heart retains a robust capacity for regeneration into adulthood. These distinct responses are consequences of a differential utilization of evolutionary-conserved gene regulatory networks in the damaged heart. To systematically identify miRNA-dependent networks controlling cardiac repair following injury, we performed comparative gene and miRNA profiling of the cardiac transcriptome in adult mice and zebrafish. Methods and results Using an integrated approach, we show that 45 miRNA-dependent networks, involved in critical biological pathways, are differentially modulated in the injured zebrafish vs. mouse hearts. We study, more particularly, the miR-26a-dependent response. Therefore, miR-26a is down-regulated in the fish heart after injury, whereas its expression remains constant in the mouse heart. Targets of miR-26a involve activators of the cell cycle and Ezh2, a component of the polycomb repressive complex 2 (PRC2). Importantly, PRC2 exerts repressive functions on negative regulators of the cell cycle. In cultured neonatal cardiomyocytes, inhibition of miR-26a stimulates, therefore, cardiomyocyte proliferation. Accordingly, miR-26a knockdown prolongs the proliferative window of cardiomyocytes in the post-natal mouse heart. Conclusions This novel strategy identifies a series of miRNAs and associated pathways, in particular miR-26a, which represent attractive therapeutic targets for inducing repair in the injured heart.
Collapse
Affiliation(s)
- Stefania Crippa
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne 1011, Switzerland
| | - Mohamed Nemir
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne 1011, Switzerland
| | - Samir Ounzain
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne 1011, Switzerland
| | - Mark Ibberson
- Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Corinne Berthonneche
- Cardiovascular Assessment Facility, University of Lausanne, Lausanne, Switzerland
| | - Alexandre Sarre
- Cardiovascular Assessment Facility, University of Lausanne, Lausanne, Switzerland
| | - Gaëlle Boisset
- Institute for Research in Ophthalmology, Sion, Switzerland
| | - Damien Maison
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne 1011, Switzerland
| | - Keith Harshman
- Lausanne Genomic Technologies Facility, University of Lausanne, Lausanne, Switzerland
| | | | - Dario Diviani
- Department of Pharmacology and Toxicology, University of Lausanne, Lausanne, Switzerland
| | | | - Thierry Pedrazzini
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne 1011, Switzerland
| |
Collapse
|
27
|
Ounzain S, Pedrazzini T. Super-enhancer lncs to cardiovascular development and disease. Biochim Biophys Acta 2015; 1863:1953-60. [PMID: 26620798 DOI: 10.1016/j.bbamcr.2015.11.026] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 11/20/2015] [Accepted: 11/23/2015] [Indexed: 01/12/2023]
Abstract
Cardiac development, function and pathological remodelling in response to stress depend on the dynamic control of tissue specific gene expression by distant acting transcriptional enhancers. Recently, super-enhancers (SEs), also known as stretch or large enhancer clusters, are emerging as sentinel regulators within the gene regulatory networks that underpin cellular functions. It is becoming increasingly evident that long noncoding RNAs (lncRNAs) associated with these sequences play fundamental roles for enhancer activity and the regulation of the gene programs hardwired by them. Here, we review this emerging landscape, focusing on the roles of SEs and their derived lncRNAs in cardiovascular development and disease. We propose that exploration of this genomic landscape could provide novel therapeutic targets and approaches for the amelioration of cardiovascular disease. Ultimately we envisage a future of ncRNA therapeutics targeting the SE landscape to alleviate cardiovascular disease. This article is part of a Special Issue entitled: Cardiomyocyte Biology: Integration of Developmental and Environmental Cues in the Heart edited by Marcus Schaub and Hughes Abriel.
Collapse
Affiliation(s)
- Samir Ounzain
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Switzerland.
| | - Thierry Pedrazzini
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Switzerland.
| |
Collapse
|
28
|
Shende P, Xu L, Morandi C, Pentassuglia L, Heim P, Lebboukh S, Berthonneche C, Pedrazzini T, Kaufmann BA, Hall MN, Rüegg MA, Brink M. Cardiac mTOR complex 2 preserves ventricular function in pressure-overload hypertrophy. Cardiovasc Res 2015; 109:103-14. [DOI: 10.1093/cvr/cvv252] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Accepted: 11/06/2015] [Indexed: 11/12/2022] Open
|
29
|
Ounzain S, Micheletti R, Arnan C, Plaisance I, Cecchi D, Schroen B, Reverter F, Alexanian M, Gonzales C, Ng SY, Bussotti G, Pezzuto I, Notredame C, Heymans S, Guigó R, Johnson R, Pedrazzini T. CARMEN, a human super enhancer-associated long noncoding RNA controlling cardiac specification, differentiation and homeostasis. J Mol Cell Cardiol 2015; 89:98-112. [PMID: 26423156 DOI: 10.1016/j.yjmcc.2015.09.016] [Citation(s) in RCA: 188] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Revised: 09/24/2015] [Accepted: 09/25/2015] [Indexed: 01/14/2023]
Abstract
Long noncoding RNAs (lncRNAs) are emerging as important regulators of developmental pathways. However, their roles in human cardiac precursor cell (CPC) remain unexplored. To characterize the long noncoding transcriptome during human CPC cardiac differentiation, we profiled the lncRNA transcriptome in CPCs isolated from the human fetal heart and identified 570 lncRNAs that were modulated during cardiac differentiation. Many of these were associated with active cardiac enhancer and super enhancers (SE) with their expression being correlated with proximal cardiac genes. One of the most upregulated lncRNAs was a SE-associated lncRNA that was named CARMEN, (CAR)diac (M)esoderm (E)nhancer-associated (N)oncoding RNA. CARMEN exhibits RNA-dependent enhancing activity and is upstream of the cardiac mesoderm-specifying gene regulatory network. Interestingly, CARMEN interacts with SUZ12 and EZH2, two components of the polycomb repressive complex 2 (PRC2). We demonstrate that CARMEN knockdown inhibits cardiac specification and differentiation in cardiac precursor cells independently of MIR-143 and -145 expression, two microRNAs located proximal to the enhancer sequences. Importantly, CARMEN expression was activated during pathological remodeling in the mouse and human hearts, and was necessary for maintaining cardiac identity in differentiated cardiomyocytes. This study demonstrates therefore that CARMEN is a crucial regulator of cardiac cell differentiation and homeostasis.
Collapse
Affiliation(s)
- Samir Ounzain
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland.
| | - Rudi Micheletti
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Carme Arnan
- Bioinformatics and Genomics Group, Centre for Genomic Regulation, Barcelona, Spain
| | - Isabelle Plaisance
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Dario Cecchi
- Bioinformatics and Genomics Group, Centre for Genomic Regulation, Barcelona, Spain
| | - Blanche Schroen
- Centre for Heart Failure Research, Cardiovascular Research Institute, Maastricht University, The Netherlands
| | - Ferran Reverter
- Bioinformatics and Genomics Group, Centre for Genomic Regulation, Barcelona, Spain
| | - Michael Alexanian
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Christine Gonzales
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Shi Yan Ng
- Stem Cell and Developmental Biology Group, Genome Institute of Singapore, Singapore; NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore
| | - Giovanni Bussotti
- Comparative Bioinformatics Group, Centre for Genomic Regulation, Barcelona, Spain
| | - Iole Pezzuto
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Cedric Notredame
- Comparative Bioinformatics Group, Centre for Genomic Regulation, Barcelona, Spain
| | - Stephane Heymans
- Centre for Heart Failure Research, Cardiovascular Research Institute, Maastricht University, The Netherlands
| | - Roderic Guigó
- Bioinformatics and Genomics Group, Centre for Genomic Regulation, Barcelona, Spain
| | - Rory Johnson
- Bioinformatics and Genomics Group, Centre for Genomic Regulation, Barcelona, Spain.
| | - Thierry Pedrazzini
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland.
| |
Collapse
|
30
|
Ounzain S, Burdet F, Ibberson M, Pedrazzini T. Discovery and functional characterization of cardiovascular long noncoding RNAs. J Mol Cell Cardiol 2015; 89:17-26. [PMID: 26408097 DOI: 10.1016/j.yjmcc.2015.09.013] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 09/15/2015] [Accepted: 09/19/2015] [Indexed: 02/04/2023]
Abstract
Recent advances in sequencing and genomic technologies have resulted in the discovery of thousands of previously unannotated long noncoding RNAs (lncRNAs). However, their function in the cardiovascular system remains elusive. Here we review and discuss considerations for cardiovascular lncRNA discovery, annotation and functional characterization. Although we primarily focus on the heart, the proposed pipeline should foster functional and mechanistic exploration of these transcripts in various cardiovascular pathologies. Moreover, these insights could ultimately lead to novel therapeutic approaches targeting lncRNAs for the amelioration of cardiovascular diseases including heart failure.
Collapse
Affiliation(s)
- Samir Ounzain
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland.
| | - Frédéric Burdet
- Vital-IT, Swiss Institute of Bioinformatics, University of Lausanne, Lausanne, Switzerland
| | - Mark Ibberson
- Vital-IT, Swiss Institute of Bioinformatics, University of Lausanne, Lausanne, Switzerland
| | - Thierry Pedrazzini
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland.
| |
Collapse
|
31
|
Metrich M, Bezdek Pomey A, Berthonneche C, Sarre A, Nemir M, Pedrazzini T. Jagged1 intracellular domain-mediated inhibition of Notch1 signalling regulates cardiac homeostasis in the postnatal heart. Cardiovasc Res 2015; 108:74-86. [PMID: 26249804 PMCID: PMC4571837 DOI: 10.1093/cvr/cvv209] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Accepted: 07/23/2015] [Indexed: 12/20/2022] Open
Abstract
Aims Notch1 signalling in the heart is mainly activated via expression of Jagged1 on the surface of cardiomyocytes. Notch controls cardiomyocyte proliferation and differentiation in the developing heart and regulates cardiac remodelling in the stressed adult heart. Besides canonical Notch receptor activation in signal-receiving cells, Notch ligands can also activate Notch receptor-independent responses in signal-sending cells via release of their intracellular domain. We evaluated therefore the importance of Jagged1 (J1) intracellular domain (ICD)-mediated pathways in the postnatal heart. Methods and results In cardiomyocytes, Jagged1 releases J1ICD, which then translocates into the nucleus and down-regulates Notch transcriptional activity. To study the importance of J1ICD in cardiac homeostasis, we generated transgenic mice expressing a tamoxifen-inducible form of J1ICD, specifically in cardiomyocytes. Using this model, we demonstrate that J1ICD-mediated Notch inhibition diminishes proliferation in the neonatal cardiomyocyte population and promotes maturation. In the neonatal heart, a response via Wnt and Akt pathway activation is elicited as an attempt to compensate for the deficit in cardiomyocyte number resulting from J1ICD activation. In the stressed adult heart, J1ICD activation results in a dramatic reduction of the number of Notch signalling cardiomyocytes, blunts the hypertrophic response, and reduces the number of apoptotic cardiomyocytes. Consistently, this occurs concomitantly with a significant down-regulation of the phosphorylation of the Akt effectors ribosomal S6 protein (S6) and eukaryotic initiation factor 4E binding protein1 (4EBP1) controlling protein synthesis. Conclusions Altogether, these data demonstrate the importance of J1ICD in the modulation of physiological and pathological hypertrophy, and reveal the existence of a novel pathway regulating cardiac homeostasis.
Collapse
Affiliation(s)
- Mélanie Metrich
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Rue du Bugnon 27, CH-1011 Lausanne, Switzerland
| | - April Bezdek Pomey
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Rue du Bugnon 27, CH-1011 Lausanne, Switzerland
| | - Corinne Berthonneche
- Cardiovascular Assessment Facility, University of Lausanne, Lausanne, Switzerland
| | - Alexandre Sarre
- Cardiovascular Assessment Facility, University of Lausanne, Lausanne, Switzerland
| | - Mohamed Nemir
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Rue du Bugnon 27, CH-1011 Lausanne, Switzerland
| | - Thierry Pedrazzini
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Rue du Bugnon 27, CH-1011 Lausanne, Switzerland Cardiovascular Assessment Facility, University of Lausanne, Lausanne, Switzerland
| |
Collapse
|
32
|
Abstract
The identification and characterization of long noncoding RNA in a variety of tissues represent major achievements that contribute to our understanding of the molecular mechanisms controlling gene expression. In particular, long noncoding RNA play crucial roles in the epigenetic regulation of the adaptive response to environmental cues via their capacity to target chromatin modifiers to specific locus. In addition, these transcripts have been implicated in controlling splicing, translation and degradation of messenger RNA. Long noncoding RNA have also been shown to act as decoy molecules for microRNA. In the heart, a few long noncoding RNA have been demonstrated to regulate cardiac commitment and differentiation during development. Furthermore, recent findings suggest their involvement as regulators of the pathophysiological response to injury in the adult heart. Their high cellular specificity makes them attractive target molecules for innovative therapies and ideal biomarkers.
Collapse
Affiliation(s)
- Thierry Pedrazzini
- Unité de cardiologie expérimentale, département de médecine, centre hospitalier universitaire vaudois, 1011 Lausanne, Suisse
| |
Collapse
|
33
|
Ounzain S, Micheletti R, Beckmann T, Schroen B, Alexanian M, Pezzuto I, Crippa S, Nemir M, Sarre A, Johnson R, Dauvillier J, Burdet F, Ibberson M, Guigó R, Xenarios I, Heymans S, Pedrazzini T. Genome-wide profiling of the cardiac transcriptome after myocardial infarction identifies novel heart-specific long non-coding RNAs. Eur Heart J 2015; 36:353-68a. [PMID: 24786300 PMCID: PMC4320320 DOI: 10.1093/eurheartj/ehu180] [Citation(s) in RCA: 207] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Revised: 03/14/2014] [Accepted: 04/06/2014] [Indexed: 12/30/2022] Open
Abstract
AIM Heart disease is recognized as a consequence of dysregulation of cardiac gene regulatory networks. Previously, unappreciated components of such networks are the long non-coding RNAs (lncRNAs). Their roles in the heart remain to be elucidated. Thus, this study aimed to systematically characterize the cardiac long non-coding transcriptome post-myocardial infarction and to elucidate their potential roles in cardiac homoeostasis. METHODS AND RESULTS We annotated the mouse transcriptome after myocardial infarction via RNA sequencing and ab initio transcript reconstruction, and integrated genome-wide approaches to associate specific lncRNAs with developmental processes and physiological parameters. Expression of specific lncRNAs strongly correlated with defined parameters of cardiac dimensions and function. Using chromatin maps to infer lncRNA function, we identified many with potential roles in cardiogenesis and pathological remodelling. The vast majority was associated with active cardiac-specific enhancers. Importantly, oligonucleotide-mediated knockdown implicated novel lncRNAs in controlling expression of key regulatory proteins involved in cardiogenesis. Finally, we identified hundreds of human orthologues and demonstrate that particular candidates were differentially modulated in human heart disease. CONCLUSION These findings reveal hundreds of novel heart-specific lncRNAs with unique regulatory and functional characteristics relevant to maladaptive remodelling, cardiac function and possibly cardiac regeneration. This new class of molecules represents potential therapeutic targets for cardiac disease. Furthermore, their exquisite correlation with cardiac physiology renders them attractive candidate biomarkers to be used in the clinic.
Collapse
Affiliation(s)
- Samir Ounzain
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, CH-1011 Lausanne, Switzerland
| | - Rudi Micheletti
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, CH-1011 Lausanne, Switzerland
| | - Tal Beckmann
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, CH-1011 Lausanne, Switzerland
| | - Blanche Schroen
- Centre for Heart Failure Research, Cardiovascular Research Institute, Maastricht University, Maastricht, The Netherlands
| | - Michael Alexanian
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, CH-1011 Lausanne, Switzerland
| | - Iole Pezzuto
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, CH-1011 Lausanne, Switzerland
| | - Stefania Crippa
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, CH-1011 Lausanne, Switzerland
| | - Mohamed Nemir
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, CH-1011 Lausanne, Switzerland
| | - Alexandre Sarre
- Cardiovascular Assessment Facility, University of Lausanne, Lausanne, Switzerland
| | | | - Jérôme Dauvillier
- VitalIT, Swiss Institute of Bioinformatics, University of Lausanne, Lausanne, Switzerland
| | - Frédéric Burdet
- VitalIT, Swiss Institute of Bioinformatics, University of Lausanne, Lausanne, Switzerland
| | - Mark Ibberson
- VitalIT, Swiss Institute of Bioinformatics, University of Lausanne, Lausanne, Switzerland
| | | | - Ioannis Xenarios
- VitalIT, Swiss Institute of Bioinformatics, University of Lausanne, Lausanne, Switzerland
| | - Stephane Heymans
- Centre for Heart Failure Research, Cardiovascular Research Institute, Maastricht University, Maastricht, The Netherlands
| | - Thierry Pedrazzini
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, CH-1011 Lausanne, Switzerland
| |
Collapse
|
34
|
Ounzain S, Pezzuto I, Micheletti R, Burdet F, Sheta R, Nemir M, Gonzales C, Sarre A, Alexanian M, Blow MJ, May D, Johnson R, Dauvillier J, Pennacchio LA, Pedrazzini T. Functional importance of cardiac enhancer-associated noncoding RNAs in heart development and disease. J Mol Cell Cardiol 2014; 76:55-70. [PMID: 25149110 PMCID: PMC4445080 DOI: 10.1016/j.yjmcc.2014.08.009] [Citation(s) in RCA: 103] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Revised: 08/07/2014] [Accepted: 08/07/2014] [Indexed: 01/17/2023]
Abstract
The key information processing units within gene regulatory networks are enhancers. Enhancer activity is associated with the production of tissue-specific noncoding RNAs, yet the existence of such transcripts during cardiac development has not been established. Using an integrated genomic approach, we demonstrate that fetal cardiac enhancers generate long noncoding RNAs (lncRNAs) during cardiac differentiation and morphogenesis. Enhancer expression correlates with the emergence of active enhancer chromatin states, the initiation of RNA polymerase II at enhancer loci and expression of target genes. Orthologous human sequences are also transcribed in fetal human hearts and cardiac progenitor cells. Through a systematic bioinformatic analysis, we identified and characterized, for the first time, a catalog of lncRNAs that are expressed during embryonic stem cell differentiation into cardiomyocytes and associated with active cardiac enhancer sequences. RNA-sequencing demonstrates that many of these transcripts are polyadenylated, multi-exonic long noncoding RNAs. Moreover, knockdown of two enhancer-associated lncRNAs resulted in the specific downregulation of their predicted target genes. Interestingly, the reactivation of the fetal gene program, a hallmark of the stress response in the adult heart, is accompanied by increased expression of fetal cardiac enhancer transcripts. Altogether, these findings demonstrate that the activity of cardiac enhancers and expression of their target genes are associated with the production of enhancer-derived lncRNAs.
Collapse
Affiliation(s)
- Samir Ounzain
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland.
| | - Iole Pezzuto
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Rudi Micheletti
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Frédéric Burdet
- VitalIT, Swiss Institute of Bioinformatics, University of Lausanne, Lausanne, Switzerland
| | - Razan Sheta
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Mohamed Nemir
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Christine Gonzales
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Alexandre Sarre
- Cardiovascular Assessment Facility, University of Lausanne, Lausanne, Switzerland
| | - Michael Alexanian
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Matthew J Blow
- Genomics Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA; US Department of Energy Joint Genome Institute, Walnut Creek, CA, USA
| | - Dalit May
- Genomics Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA; US Department of Energy Joint Genome Institute, Walnut Creek, CA, USA
| | - Rory Johnson
- Bioinformatics and Genomics Group, Centre for Genomic Regulation, Barcelona, Spain
| | - Jérôme Dauvillier
- VitalIT, Swiss Institute of Bioinformatics, University of Lausanne, Lausanne, Switzerland
| | - Len A Pennacchio
- Genomics Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA; US Department of Energy Joint Genome Institute, Walnut Creek, CA, USA
| | - Thierry Pedrazzini
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland.
| |
Collapse
|
35
|
Mellor KM, Curl CL, Chandramouli C, Pedrazzini T, Wendt IR, Delbridge LMD. Ageing-related cardiomyocyte functional decline is sex and angiotensin II dependent. Age (Dordr) 2014; 36:9630. [PMID: 24566994 PMCID: PMC4082583 DOI: 10.1007/s11357-014-9630-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Accepted: 02/07/2014] [Indexed: 05/19/2023]
Abstract
Clinically, heart failure is an age-dependent pathological phenomenon and displays sex-specific characteristics. The renin-angiotensin system mediates cardiac pathology in heart failure. This study investigated the sexually dimorphic functional effects of ageing combined with angiotensin II (AngII) on cardiac muscle cell function, twitch and Ca(2+)-handling characteristics of isolated cardiomyocytes from young (~13 weeks) and aged (~87 weeks) adult wild type (WT) and AngII-transgenic (TG) mice. We hypothesised that AngII-induced contractile impairment would be exacerbated in aged female cardiomyocytes and linked to Ca(2+)-handling disturbances. AngII-induced cardiomyocyte hypertrophy was evident in young adult mice of both sexes and accentuated by age (aged adult ~21-23 % increases in cell length relative to WT). In female AngII-TG mice, ageing was associated with suppressed cardiomyocyte contractility (% shortening, maximum rate of shortening, maximum rate of relaxation). This was associated with delayed cytosolic Ca(2+) removal during twitch relaxation (Tau ~20 % increase relative to young adult female WT), and myofilament responsiveness to Ca(2+) was maintained. In contrast, aged AngII-TG male cardiomyocytes exhibited peak shortening equivalent to young TG; yet, myofilament Ca(2+) responsiveness was profoundly reduced with ageing. Increased pro-arrhythmogenic spontaneous activity was evident with age and cardiac AngII overexpression in male mice (42-55 % of myocytes) but relatively suppressed in female aged transgenic mice. Female myocytes with elevated AngII appear more susceptible to an age-related contractile deficit, whereas male AngII-TG myocytes preserve contractile function with age but exhibit desensitisation of myofilaments to Ca(2+) and a heightened vulnerability to arrhythmic activity. These findings support the contention that sex-specific therapies are required for the treatment of age-progressive heart failure.
Collapse
Affiliation(s)
- Kimberley M. Mellor
- />Department of Physiology, University of Melbourne, Melbourne, VIC Australia
- />Department of Physiology, University of Auckland, Auckland, New Zealand
| | - Claire L. Curl
- />Department of Physiology, University of Melbourne, Melbourne, VIC Australia
| | | | | | - Igor R. Wendt
- />Department of Physiology, Monash University, Melbourne, VIC Australia
| | - Lea M. D. Delbridge
- />Department of Physiology, University of Melbourne, Melbourne, VIC Australia
| |
Collapse
|
36
|
Fluri SMP, Pedrazzini T, Ruchat P, Pruvot E, Gonzales C, Plaisance I, Locca D. Fate of human crardiac precursoe cells following injection in the sheep myocardium using a NOGA cell delivery system. Cytotherapy 2014. [DOI: 10.1016/j.jcyt.2014.01.137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
37
|
Hohl M, Ardehali H, Azuaje FJ, Breckenridge RA, Doehner W, Eaton P, Ehret GB, Fujita T, Gaetani R, Giacca M, Hasenfuß G, Heymans S, Leite-Moreira AF, Linke WA, Linz D, Lyon A, Mamas MA, Orešič M, Papp Z, Pedrazzini T, Piepoli M, Prosser B, Rizzuto R, Tarone G, Tian R, van Craenenbroeck E, van Rooij E, Wai T, Weiss G, Maack C. Meeting highlights from the 2013 European Society of Cardiology Heart Failure Association Winter Meeting on Translational Heart Failure Research. Eur J Heart Fail 2014; 16:6-14. [PMID: 24453095 DOI: 10.1002/ejhf.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Revised: 09/07/2013] [Accepted: 09/09/2013] [Indexed: 11/09/2022] Open
Affiliation(s)
- Mathias Hohl
- Klinik für Innere Medizin III, Universitätsklinikum des Saarlandes, D-66421, Homburg/Saar, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
38
|
Windak R, Müller J, Felley A, Akhmedov A, Wagner EF, Pedrazzini T, Sumara G, Ricci R. The AP-1 transcription factor c-Jun prevents stress-imposed maladaptive remodeling of the heart. PLoS One 2013; 8:e73294. [PMID: 24039904 PMCID: PMC3769267 DOI: 10.1371/journal.pone.0073294] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Accepted: 07/18/2013] [Indexed: 11/27/2022] Open
Abstract
Systemic hypertension increases cardiac workload and subsequently induces signaling networks in heart that underlie myocyte growth (hypertrophic response) through expansion of sarcomeres with the aim to increase contractility. However, conditions of increased workload can induce both adaptive and maladaptive growth of heart muscle. Previous studies implicate two members of the AP-1 transcription factor family, junD and fra-1, in regulation of heart growth during hypertrophic response. In this study, we investigate the function of the AP-1 transcription factors, c-jun and c-fos, in heart growth. Using pressure overload-induced cardiac hypertrophy in mice and targeted deletion of Jun or Fos in cardiomyocytes, we show that c-jun is required for adaptive cardiac hypertrophy, while c-fos is dispensable in this context. c-jun promotes expression of sarcomere proteins and suppresses expression of extracellular matrix proteins. Capacity of cardiac muscle to contract depends on organization of principal thick and thin filaments, myosin and actin, within the sarcomere. In line with decreased expression of sarcomere-associated proteins, Jun-deficient cardiomyocytes present disarrangement of filaments in sarcomeres and actin cytoskeleton disorganization. Moreover, Jun-deficient hearts subjected to pressure overload display pronounced fibrosis and increased myocyte apoptosis finally resulting in dilated cardiomyopathy. In conclusion, c-jun but not c-fos is required to induce a transcriptional program aimed at adapting heart growth upon increased workload.
Collapse
Affiliation(s)
- Renata Windak
- Institute of Cell Biology, Eidgenössische Technische Hochschule Zurich (ETHZ), Zurich, Switzerland
| | - Julius Müller
- Institute of Cell Biology, Eidgenössische Technische Hochschule Zurich (ETHZ), Zurich, Switzerland
| | - Allison Felley
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Alexander Akhmedov
- Cardiovascular Research, Institute of Physiology, University of Zurich, Zurich, Switzerland
| | - Erwin F. Wagner
- Genes, Development and Disease Group, F-BBVA Cancer Cell Biology Programme, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Thierry Pedrazzini
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | - Grzegorz Sumara
- Institute of Cell Biology, Eidgenössische Technische Hochschule Zurich (ETHZ), Zurich, Switzerland
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Institut National de la Santé et de la Recherche Médicale, Centre National de la Recherche Scientifique, Université de Strasbourg, Illkirch, France
- * E-mail: (RR); (GS)
| | - Romeo Ricci
- Institute of Cell Biology, Eidgenössische Technische Hochschule Zurich (ETHZ), Zurich, Switzerland
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Institut National de la Santé et de la Recherche Médicale, Centre National de la Recherche Scientifique, Université de Strasbourg, Illkirch, France
- Laboratoire de Biochimie et de Biologie Moléculaire, Nouvel Hôpital Civil, Hôpitaux Universitaires de Strasbourg, Université de Strasbourg, Strasbourg, France
- * E-mail: (RR); (GS)
| |
Collapse
|
39
|
Nemir M, Metrich M, Plaisance I, Lepore M, Cruchet S, Berthonneche C, Sarre A, Radtke F, Pedrazzini T. The Notch pathway controls fibrotic and regenerative repair in the adult heart. Eur Heart J 2012; 35:2174-85. [PMID: 23166366 PMCID: PMC4139705 DOI: 10.1093/eurheartj/ehs269] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Aims In the adult heart, Notch signalling regulates the response to injury. Notch inhibition leads to increased cardiomyocyte apoptosis, and exacerbates the development of cardiac hypertrophy and fibrosis. The role of Notch in the mesenchymal stromal cell fraction, which contains cardiac fibroblasts and cardiac precursor cells, is, however, largely unknown. In the present study, we evaluate, therefore, whether forced activation of the Notch pathway in mesenchymal stromal cells regulates pathological cardiac remodelling. Methods and results We generated transgenic mice overexpressing the Notch ligand Jagged1 on the surface of cardiomyocytes to activate Notch signalling in adjacent myocyte and non-myocyte cells. In neonatal transgenic mice, activated Notch sustained cardiac precursor and myocyte proliferation after birth, and led to increased numbers of cardiac myocytes in adult mice. In the adult heart under pressure overload, Notch inhibited the development of cardiomyocyte hypertrophy and transforming growth factor-β/connective tissue growth factor-mediated cardiac fibrosis. Most importantly, Notch activation in the stressed adult heart reduced the proliferation of myofibroblasts and stimulated the expansion of stem cell antigen-1-positive cells, and in particular of Nkx2.5-positive cardiac precursor cells. Conclusions We conclude that Notch is pivotal in the healing process of the injured heart. Specifically, Notch regulates key cellular mechanisms in the mesenchymal stromal cell population, and thereby controls the balance between fibrotic and regenerative repair in the adult heart. Altogether, these findings indicate that Notch represents a unique therapeutic target for inducing regeneration in the adult heart via mobilization of cardiac precursor cells.
Collapse
Affiliation(s)
- Mohamed Nemir
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Rue du Bugnon 27, CH-1011 Lausanne, Switzerland
| | - Mélanie Metrich
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Rue du Bugnon 27, CH-1011 Lausanne, Switzerland
| | - Isabelle Plaisance
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Rue du Bugnon 27, CH-1011 Lausanne, Switzerland
| | - Mario Lepore
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Rue du Bugnon 27, CH-1011 Lausanne, Switzerland
| | - Steeve Cruchet
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Rue du Bugnon 27, CH-1011 Lausanne, Switzerland
| | - Corinne Berthonneche
- Cardiovascular Assessment Facility, University of Lausanne, Lausanne, Switzerland
| | - Alexandre Sarre
- Cardiovascular Assessment Facility, University of Lausanne, Lausanne, Switzerland
| | - Freddy Radtke
- Swiss Institute for Experimental Cancer Research, Swiss Federal Institute of Technology, Lausanne, Switzerland
| | - Thierry Pedrazzini
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Rue du Bugnon 27, CH-1011 Lausanne, Switzerland Cardiovascular Assessment Facility, University of Lausanne, Lausanne, Switzerland
| |
Collapse
|
40
|
Blyszczuk P, Berthonneche C, Behnke S, Glönkler M, Moch H, Pedrazzini T, Lüscher TF, Eriksson U, Kania G. Nitric oxide synthase 2 is required for conversion of pro-fibrogenic inflammatory CD133+ progenitors into F4/80+ macrophages in experimental autoimmune myocarditis. Cardiovasc Res 2012; 97:219-29. [DOI: 10.1093/cvr/cvs317] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
|
41
|
Ounzain S, Crippa S, Pedrazzini T. Small and long non-coding RNAs in cardiac homeostasis and regeneration. Biochim Biophys Acta 2012; 1833:923-33. [PMID: 22951218 DOI: 10.1016/j.bbamcr.2012.08.010] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Revised: 08/10/2012] [Accepted: 08/11/2012] [Indexed: 01/08/2023]
Abstract
Cardiovascular diseases and in particular heart failure are major causes of morbidity and mortality in the Western world. Recently, the notion of promoting cardiac regeneration as a means to replace lost cardiomyocytes in the damaged heart has engendered considerable research interest. These studies envisage the utilization of both endogenous and exogenous cellular populations, which undergo highly specialized cell fate transitions to promote cardiomyocyte replenishment. Such transitions are under the control of regenerative gene regulatory networks, which are enacted by the integrated execution of specific transcriptional programs. In this context, it is emerging that the non-coding portion of the genome is dynamically transcribed generating thousands of regulatory small and long non-coding RNAs, which are central orchestrators of these networks. In this review, we discuss more particularly the biological roles of two classes of regulatory non-coding RNAs, i.e. microRNAs and long non-coding RNAs, with a particular emphasis on their known and putative roles in cardiac homeostasis and regeneration. Indeed, manipulating non-coding RNA-mediated regulatory networks could provide keys to unlock the dormant potential of the mammalian heart to regenerate. This should ultimately improve the effectiveness of current regenerative strategies and discover new avenues for repair. This article is part of a Special Issue entitled: Cardiomyocyte Biology: Cardiac Pathways of Differentiation, Metabolism and Contraction.
Collapse
Affiliation(s)
- Samir Ounzain
- Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | | | | |
Collapse
|
42
|
Hersch M, Peter B, Kang HM, Schüpfer F, Abriel H, Pedrazzini T, Eskin E, Beckmann JS, Bergmann S, Maurer F. Mapping genetic variants associated with beta-adrenergic responses in inbred mice. PLoS One 2012; 7:e41032. [PMID: 22859963 PMCID: PMC3409184 DOI: 10.1371/journal.pone.0041032] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2012] [Accepted: 06/16/2012] [Indexed: 01/11/2023] Open
Abstract
β-blockers and β-agonists are primarily used to treat cardiovascular diseases. Inter-individual variability in response to both drug classes is well recognized, yet the identity and relative contribution of the genetic players involved are poorly understood. This work is the first genome-wide association study (GWAS) addressing the values and susceptibility of cardiovascular-related traits to a selective β1-blocker, Atenolol (ate), and a β-agonist, Isoproterenol (iso). The phenotypic dataset consisted of 27 highly heritable traits, each measured across 22 inbred mouse strains and four pharmacological conditions. The genotypic panel comprised 79922 informative SNPs of the mouse HapMap resource. Associations were mapped by Efficient Mixed Model Association (EMMA), a method that corrects for the population structure and genetic relatedness of the various strains. A total of 205 separate genome-wide scans were analyzed. The most significant hits include three candidate loci related to cardiac and body weight, three loci for electrocardiographic (ECG) values, two loci for the susceptibility of atrial weight index to iso, four loci for the susceptibility of systolic blood pressure (SBP) to perturbations of the β-adrenergic system, and one locus for the responsiveness of QTc (p<10−8). An additional 60 loci were suggestive for one or the other of the 27 traits, while 46 others were suggestive for one or the other drug effects (p<10−6). Most hits tagged unexpected regions, yet at least two loci for the susceptibility of SBP to β-adrenergic drugs pointed at members of the hypothalamic-pituitary-thyroid axis. Loci for cardiac-related traits were preferentially enriched in genes expressed in the heart, while 23% of the testable loci were replicated with datasets of the Mouse Phenome Database (MPD). Altogether these data and validation tests indicate that the mapped loci are relevant to the traits and responses studied.
Collapse
Affiliation(s)
- Micha Hersch
- Department of Medical Genetics, University of Lausanne, Lausanne, Switzerland
- Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Bastian Peter
- Department of Medical Genetics, University of Lausanne, Lausanne, Switzerland
- Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Hyun Min Kang
- Department of Computer Science and Department of Human Genetics, University of California Los Angeles, Los Angeles, California, United States of America
- Department of Biostatistics, Center for Statistical Genetics, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Fanny Schüpfer
- Service of Medical Genetics, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
| | - Hugues Abriel
- Department of Clinical Research, University of Bern, Bern, Switzerland
| | - Thierry Pedrazzini
- Department of Medicine, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
| | - Eleazar Eskin
- Department of Computer Science and Department of Human Genetics, University of California Los Angeles, Los Angeles, California, United States of America
| | - Jacques S. Beckmann
- Department of Medical Genetics, University of Lausanne, Lausanne, Switzerland
- Service of Medical Genetics, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
| | - Sven Bergmann
- Department of Medical Genetics, University of Lausanne, Lausanne, Switzerland
- Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Fabienne Maurer
- Service of Medical Genetics, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
- * E-mail:
| |
Collapse
|
43
|
Wang Q, Domenighetti AA, Schäfer SC, Weber J, Simon A, Maillard MP, Pedrazzini T, Chen J, Lehr HA, Burnier M. Impact of salt on cardiac differential gene expression and coronary lesion in normotensive mineralocorticoid-treated mice. Am J Physiol Regul Integr Comp Physiol 2012; 302:R1025-33. [DOI: 10.1152/ajpregu.00387.2011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
We previously reported that excess of deoxycorticosterone-acetate (DOCA)/salt-induced cardiac hypertrophy in the absence of hypertension in one-renin gene mice. This model allows us to study molecular mechanisms of high-salt intake in the development of cardiovascular remodeling, independently of blood pressure in a high mineralocorticoid state. In this study, we compared the effect of 5-wk low- and high-salt intake on cardiovascular remodeling and cardiac differential gene expression in mice receiving the same amount of DOCA. Differential gene and protein expression was measured by high-density cDNA microarray assays, real-time PCR and Western blot analysis in DOCA-high salt (HS) vs. DOCA-low salt (LS) mice. DOCA-HS mice developed cardiac hypertrophy, coronary perivascular fibrosis, and left ventricular dysfunction. Differential gene and protein expression demonstrated that high-salt intake upregulated a subset of genes encoding for proteins involved in inflammation and extracellular matrix remodeling (e.g., Col3a1, Col1a2, Hmox1, and Lcn2). A major subset of downregulated genes encoded for transcription factors, including myeloid differentiation primary response (MyD) genes. Our data provide some evidence that vascular remodeling, fibrosis, and inflammation are important consequences of a high-salt intake in DOCA mice. Our study suggests that among the different pathogenic factors of cardiac and vascular remodeling, such as hypertension and mineralocorticoid excess and sodium intake, the latter is critical for the development of the profibrotic and proinflammatory phenotype observed in the heart of normotensive DOCA-treated mice.
Collapse
Affiliation(s)
- Qing Wang
- Service of Nephrology and Hypertension, Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland
- Huazhong University of Science and Technology, Wuhan, China
| | | | | | - Johanns Weber
- The Lausanne DNA Array Facility, University of Lausanne, Switzerland
| | - Alexandra Simon
- Service of Nephrology and Hypertension, Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland
| | - Marc P. Maillard
- Service of Nephrology and Hypertension, Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland
| | | | - Ju Chen
- Department of Medicine, University of California, San Diego, La Jolla, California
| | | | - Michel Burnier
- Service of Nephrology and Hypertension, Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland
| |
Collapse
|
44
|
Krishnan J, Danzer C, Simka T, Ukropec J, Walter KM, Kumpf S, Mirtschink P, Ukropcova B, Gasperikova D, Pedrazzini T, Krek W. Dietary obesity-associated Hif1α activation in adipocytes restricts fatty acid oxidation and energy expenditure via suppression of the Sirt2-NAD+ system. Genes Dev 2012; 26:259-70. [PMID: 22302938 DOI: 10.1101/gad.180406.111] [Citation(s) in RCA: 227] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Dietary obesity is a major factor in the development of type 2 diabetes and is associated with intra-adipose tissue hypoxia and activation of hypoxia-inducible factor 1α (HIF1α). Here we report that, in mice, Hif1α activation in visceral white adipocytes is critical to maintain dietary obesity and associated pathologies, including glucose intolerance, insulin resistance, and cardiomyopathy. This function of Hif1α is linked to its capacity to suppress β-oxidation, in part, through transcriptional repression of sirtuin 2 (Sirt2) NAD(+)-dependent deacetylase. Reduced Sirt2 function directly translates into diminished deacetylation of PPARγ coactivator 1α (Pgc1α) and expression of β-oxidation and mitochondrial genes. Importantly, visceral adipose tissue from human obese subjects is characterized by high levels of HIF1α and low levels of SIRT2. Thus, by negatively regulating the Sirt2-Pgc1α regulatory axis, Hif1α negates adipocyte-intrinsic pathways of fatty acid catabolism, thereby creating a metabolic state supporting the development of obesity.
Collapse
|
45
|
Pellieux C, Montessuit C, Papageorgiou I, Pedrazzini T, Lerch R. Differential effects of high-fat diet on myocardial lipid metabolism in failing and nonfailing hearts with angiotensin II-mediated cardiac remodeling in mice. Am J Physiol Heart Circ Physiol 2012; 302:H1795-805. [PMID: 22408021 DOI: 10.1152/ajpheart.01023.2011] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Normal myocardium adapts to increase of nutritional fatty acid supply by upregulation of regulatory proteins of the fatty acid oxidation pathway. Because advanced heart failure is associated with reduction of regulatory proteins of fatty acid oxidation, we hypothesized that failing myocardium may not be able to adapt to increased fatty acid intake and therefore undergo lipid accumulation, potentially aggravating myocardial dysfunction. We determined the effect of high-fat diet in transgenic mice with overexpression of angiotensinogen in the myocardium (TG1306/R1). TG1306/R1 mice develop ANG II-mediated left ventricular hypertrophy, and at one year of age approximately half of the mice present heart failure associated with reduced expression of regulatory proteins of fatty acid oxidation and reduced palmitate oxidation during ex vivo working heart perfusion. Hypertrophied hearts from TG1306/R1 mice without heart failure adapted to high-fat feeding, similarly to hearts from wild-type mice, with upregulation of regulatory proteins of fatty acid oxidation and enhancement of palmitate oxidation. There was no myocardial lipid accumulation or contractile dysfunction. In contrast, hearts from TG1306/R1 mice presenting heart failure were unable to respond to high-fat feeding by upregulation of fatty acid oxidation proteins and enhancement of palmitate oxidation. This resulted in accumulation of triglycerides and ceramide in the myocardium, and aggravation of contractile dysfunction. In conclusion, hearts with ANG II-induced contractile failure have lost the ability to enhance fatty acid oxidation in response to increased fatty acid supply. The ensuing accumulation of lipid compounds may play a role in the observed aggravation of contractile dysfunction.
Collapse
Affiliation(s)
- Corinne Pellieux
- Cardiology Center, Department of Medicine and Foundation for Medical Research, University Hospitals of Geneva, Geneva.
| | | | | | | | | |
Collapse
|
46
|
Mascareno E, Galatioto J, Rozenberg I, Salciccioli L, Kamran H, Lazar JM, Liu F, Pedrazzini T, Siddiqui MAQ. Cardiac lineage protein-1 (CLP-1) regulates cardiac remodeling via transcriptional modulation of diverse hypertrophic and fibrotic responses and angiotensin II-transforming growth factor β (TGF-β1) signaling axis. J Biol Chem 2012; 287:13084-93. [PMID: 22308025 DOI: 10.1074/jbc.m111.288944] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
It is well known that the renin-angiotensin system contributes to left ventricular hypertrophy and fibrosis, a major determinant of myocardial stiffness. TGF-β1 and renin-angiotensin system signaling alters the fibroblast phenotype by promoting its differentiation into morphologically distinct pathological myofibroblasts, which potentiates collagen synthesis and fibrosis and causes enhanced extracellular matrix deposition. However, the atrial natriuretic peptide, which is induced during left ventricular hypertrophy, plays an anti-fibrogenic and anti-hypertrophic role by blocking, among others, the TGF-β-induced nuclear localization of Smads. It is not clear how the hypertrophic and fibrotic responses are transcriptionally regulated. CLP-1, the mouse homolog of human hexamethylene bis-acetamide inducible-1 (HEXIM-1), regulates the pTEFb activity via direct association with pTEFb causing inhibition of the Cdk9-mediated serine 2 phosphorylation in the carboxyl-terminal domain of RNA polymerase II. It was recently reported that the serine kinase activity of Cdk9 not only targets RNA polymerase II but also the conserved serine residues of the polylinker region in Smad3, suggesting that CLP-1-mediated changes in pTEFb activity may trigger Cdk9-dependent Smad3 signaling that can modulate collagen expression and fibrosis. In this study, we evaluated the role of CLP-1 in vivo in induction of left ventricular hypertrophy in angiotensinogen-overexpressing transgenic mice harboring CLP-1 heterozygosity. We observed that introduction of CLP-1 haplodeficiency in the transgenic α-myosin heavy chain-angiotensinogen mice causes prominent changes in hypertrophic and fibrotic responses accompanied by augmentation of Smad3/Stat3 signaling. Together, our findings underscore the critical role of CLP-1 in remodeling of the genetic response during hypertrophy and fibrosis.
Collapse
Affiliation(s)
- Eduardo Mascareno
- Department of Cell Biology, Center for Cardiovascular and Muscle Research, State University of New York Downstate Medical Center, Brooklyn, New York 11203, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
47
|
Rosenblatt-Velin N, Ogay S, Felley A, Stanford WL, Pedrazzini T. Cardiac dysfunction and impaired compensatory response to pressure overload in mice deficient in stem cell antigen-1. FASEB J 2011; 26:229-39. [PMID: 21957128 DOI: 10.1096/fj.11-189605] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Stem cell antigen-1 (Sca-1) has been used to identify cardiac stem cells in the mouse heart. To investigate the function of Sca-1 in aging and during the cardiac adaptation to stress, we used Sca-1-deficient mice. These mice developed dilated cardiomyopathy [end-diastolic left ventricular diameter at 18 wk of age: wild-type (WT) mice, 4.2 mm ± 0.3; Sca-1-knockout (Sca-1-KO) mice, 4.6 mm ± 0.1; ejection fraction: WT mice, 51.1 ± 2.7%; Sca-1-KO mice, 42.9 ± 2.7%]. Furthermore, the hearts of mice lacking Sca-1 demonstrated exacerbated susceptibility to pressure overload [ejection fraction after transaortic constriction (TAC): WT mice, 43.5 ± 3.2%; Sca-1-KO mice, 30.8% ± 4.0] and increased apoptosis, as shown by the 2.5-fold increase in TUNEL(+) cells in Sca-1-deficient hearts under stress. Sca-1 deficiency affected primarily the nonmyocyte cell fraction. Indeed, the number of Nkx2.5(+) nonmyocyte cells, which represent a population of cardiac precursor cells (CPCs), was 2-fold smaller in Sca-1 deficient neonatal hearts. In vitro, the ability of CPCs to differentiate into cardiomyocytes was not affected by Sca-1 deletion. In contrast, these cells demonstrated unrestricted differentiation into cardiomyocytes. Interestingly, proliferation of cardiac nonmyocyte cells in response to stress, as judged by BrdU incorporation, was higher in mice lacking Sca-1 (percentages of BrdU(+) cells in the heart after TAC: WT mice, 4.4 ± 2.1%; Sca-1-KO mice, 19.3 ± 4.2%). These data demonstrate the crucial role of Sca-1 in the maintenance of cardiac integrity and suggest that Sca-1 restrains spontaneous differentiation in the precursor population. The absence of Sca-1 results in uncontrolled precursor recruitment, exhaustion of the precursor pool, and cardiac dysfunction.
Collapse
|
48
|
Gonzales C, Ullrich ND, Gerber S, Berthonneche C, Niggli E, Pedrazzini T. Isolation of cardiovascular precursor cells from the human fetal heart. Tissue Eng Part A 2011; 18:198-207. [PMID: 21902604 DOI: 10.1089/ten.tea.2011.0022] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Weakening of cardiac function in patients with heart failure results from a loss of cardiomyocytes in the damaged heart. Cell replacement therapies as a way to induce myocardial regeneration in humans could represent attractive alternatives to classical drug-based approaches. However, a suitable source of precursor cells, which could produce a functional myocardium after transplantation, remains to be identified. In the present study, we isolated cardiovascular precursor cells from ventricles of human fetal hearts at 12 weeks of gestation. These cells expressed Nkx2.5 but not late cardiac markers such as α-actinin and troponin I. In addition, proliferating cells expressed the mesenchymal stem cell markers CD73, CD90, and CD105. Evidence for functional cardiogenic differentiation in vitro was demonstrated by the upregulation of cardiac gene expression as well as the appearance of cells with organized sarcomeric structures. Importantly, differentiated cells presented spontaneous and triggered calcium signals. Differentiation into smooth muscle cells was also detected. In contrast, precursor cells did not produce endothelial cells. The engraftment and differentiation capacity of green fluorescent protein (GFP)-labeled cardiac precursor cells were then tested in vivo after transfer into the heart of immunodeficient severe combined immunodeficient mice. Engrafted human cells were readily detected in the mouse myocardium. These cells retained their cardiac commitment and differentiated into α-actinin-positive cardiomyocytes. Expression of connexin-43 at the interface between GFP-labeled and endogenous cardiomyocytes indicated that precursor-derived cells connected to the mouse myocardium. Together, these results suggest that human ventricular nonmyocyte cells isolated from fetal hearts represent a suitable source of precursors for cell replacement therapies.
Collapse
Affiliation(s)
- Christine Gonzales
- Experimental Cardiology Unit, Department of Medicine, University of Lausanne Medical School, Lausanne, Switzerland
| | | | | | | | | | | |
Collapse
|
49
|
Dunet V, Dabiri A, Allenbach G, Goyeneche Achigar A, Waeber B, Feihl F, Heinzer R, Prior JO, Van Velzen JE, Schuijf JD, De Graaf FR, De Graaf MA, Schalij MJ, Kroft LJ, De Roos A, Jukema JW, Van Der Wall EE, Bax JJ, Lankinen E, Saraste A, Noponen T, Klen R, Teras M, Kokki T, Kajander S, Pietila M, Ukkonen H, Knuuti J, Pazhenkottil AP, Nkoulou RN, Ghadri JR, Herzog BA, Buechel RR, Kuest SM, Wolfrum M, Gaemperli O, Husmann L, Kaufmann PA, Andreini D, Pontone G, Mushtaq S, Antonioli L, Bertella E, Formenti A, Cortinovis S, Ballerini G, Fiorentini C, Pepi M, Koh AS, Flores JS, Keng FYJ, Tan RS, Chua TSJ, Pontone G, Andreini D, Bertella E, Mushtaq S, Annoni AD, Tamborini G, Fusari M, Ballerini G, Bartorelli AL, Pepi M, Ewe SH, Ng ACT, Delgado V, Schuijf J, Van Der Kley F, Colli A, De Weger A, Marsan NA, Schalij MJ, Bax JJ, Yiu KH, Ng AC, Delgado V, Ewe SH, Van Der Kley F, De Weger A, Kroft LJ, De Roos A, Schuijf JD, Bax JJ, Timmer SAJ, Knaapen P, Germans T, Dijkmans PA, Lubberink M, Ten Berg JM, Ten Cate FJ, Russel IK, Lammertsma AA, Van Rossum AC, Wong YY, Lubberink M, Ruiter G, Raijmakers P, Knaapen P, Van Der Laarse WJ, Westerhof N, Greer C, Chokshi A, Jones M, Schaefle K, Bhatia K, Shimbo D, Schulze PC, Nakajima K, Okuda K, Matsuo S, Vonk-Noordegraaf A, Kirihara Y, Ishikawa T, Taki J, Yoshita M, Yamada M, Kinuya S, Salacata A, Keavey S, Chavarri V, Mills J, Youssef G, Chen J, Nagaraj H, Bhambhani P, Kliner DE, Soman P, Garcia EV, Heo J, Iskandrian AE, Jain M, Lin B, Leung E, Walker A, Nkonde C, Wackers F, Bond S, Baskin A, Declerck J, Schindler T, Ratib O, Zaidi H, Jimenez-Santos M, Wisenberg G, Alexanderson Rosas E, Ricalde A, Soto ME, Mendoza G, Aguilar M, Romero E, Pena-Cabral MA, Jacome R, Meave A, Williams SP, Marriot C, Colice G, Mcardle JR, Lankford A, Kajdasz DK, Reed CR, Mazzanti M, Angelini L, Pimpini L, Angelozzi F, Ascoli G, Williams K, Perna GP, Jacobson A, Lessig HJ, Gerson MC, Cerqueira MD, Narula J, Ashikaga K, Akashi YJ, Kamijima R, Uematsu M, Etele J, Yoneyama K, Kida K, Suzuki K, Omiya K, Miyake Y, Flotats A, Bravo PE, Fukushima K, Chaudhry M, Merrill J, Dekemp RA, Bengel FM, Alonso Tello A, Rodriguez Palomares JF, Marti Aguasca G, Aguade Bruix S, Aliaga V, Mahia P, Gonzalez-Alujas T, Candell J, Evangelista A, Dasilva J, Garcia-Dorado D, Mlynarski R, Mlynarska A, Sosnowski M, Zerahn B, Hasbak P, Mortensen CE, Mathiesen HF, Andersson M, Nielsen D, Birnie D, Ferreira Santos L, Ferreira MJ, Ramos D, Moreira D, Cunha MJ, Albuquerque A, Moreira A, Oliveira Santos J, Costa G, Providencia LA, Beanlands RSB, Arita Y, Kihara S, Mitsusada N, Miyawaki M, Ueda H, Hiraoka H, Matsuzawa Y, Tragardh Johansson E, Sjostrand K, Edenbrandt L, Thompson RC, Askew J, O'connor M, Jordan L, Ruter R, Gibbons R, Miller T, Depuey G, Wray R, Emmett L, Ng A, Allam AH, Sorensen N, Mansberg R, Kritharides L, Diego M, Ruano R, Albarran C, Martin De Arriba A, Gomez-Caminero F, Rosero A, Gonzalez T, Wann LS, Garcia-Talavera JR, Martin Luengo C, Majmundar H, Coats NP, Vernotico S, Doan JH, Hernandez TM, Evini M, Hepner AD, Ip TK, Nureldin AH, Miyamoto MI, Thomas GS, Chalela WA, Falcao AM, Azouri LO, Ramires JAF, Meneghetti JC, Manganelli F, Spadafora M, Varrella P, Adelmaksoub G, Peluso G, Sauro R, Di Lorenzo E, Rotondi F, Daniele S, Miletto P, Cuocolo A, Rijnders AJM, Hendrickx BW, Van Der Bruggen W, Badr I, America YGCJ, Thorley PJ, Chowdhury FU, Dickinson CJ, Sazonova SI, Proskokova IYU, Gusakova AM, Minin SM, Lishmanov YUB, Saushkin VV, Sutherland ML, Vallejo E, Rodriguez G, Roffe F, Ilarraza H, Bialostozky D, Kitsiou AN, Arsenos P, Tsiantis I, Charizopoulos S, Karas S, Sutherland JD, Aoki H, Kajinami K, Matsunari I, Koh AS, Flores JS, Keng FYJ, Chua TSJ, Vidal Perez RC, Garrido M, Pubul V, Miyamoto MI, Argibay S, Pena C, Pombo M, Ciobotaru AB, Sanchez-Salmon A, Ruibal Morell A, Gonzalez-Juanatey JR, Jimenez-Heffernan A, Lopez-Martin J, Sanchez De Mora E, Thomas GS, Ramos C, Salgado C, Lopez-Aguilar R, Rodriguez-Gomez E, Roa J, Martinez B, Tobaruela A, Pontillo D, Benvissuto F, Fiore Melacrinis F, Harms HJ, Maccafeo S, Scabbia EV, Schiavo R, Golzar Y, Gidea C, Golzar J, Fukuda H, Moroi M, Masai H, Kunimasa T, De Haan S, Nakazato R, Furuhashi T, Sugi K, Kaczmarska E, Kepka C, Dzielinska Z, Pracon R, Kryczka K, Kruk M, Pregowski J, Knaapen P, Petryka J, Mazurkiewicz L, Demkow M, Hayes Brown K, Alhaji M, Collado F, Kiriakos R, Maheshwari A, Schmidt S, Vashistha R, Huisman MC, Alexander S, Shanes J, Doukky R, Vavlukis M, Pop-Gorceva D, Kostova N, Peovska I, Majstorov V, Zdravkovska M, Stojanovski S, Schuit RC, Georgievska-Ismail LJ, Katsikis T, Theodorakos A, Kouzoumi A, Koutelou M, Yoshimura Y, Toyama T, Hoshizaki H, Ohshima S, Inoue M, Windhorst AD, Suzuki T, Rossi A, Uitterdijk A, Dijkshoorn M, Van Straten M, Van Der Giessen WJ, Krestin GP, De Feyter PJ, Duncker DJ, Merkus D, Lammertsma AA, Mollet N, Pan XB, Platsch G, Schindler T, Quercioli A, Zaidi H, Ratib O, Sunderland J, Tonge C, Arumugam P, Allaart C, Declerck JM, Dey T, Wieczorek H, Bippus R, Romijn RL, Backus BE, Verzijlbergen JF, Aach T, Lomsky M, Johansson L, Lubberink M, Marving J, Svensson S, Edenbrandt L, Pou JL, Esteves FP, Chen J, Raggi P, Folks R, Keidar Z, Askew JW, Einstein AJ, Verdes L, Campos L, Garcia EV, Lishmanov YU, Zavadovskiy K, Gulyaev V, Pankova A, Santos J, Carmona S, Henriksson I, Khawaja T, Prata A, Carrageta M, Santos AI, Harms HJ, Knaapen P, De Haan S, Lammertsma AA, Lubberink M, Van Tosh A, Faber TL, Greer C, Votaw JR, Reichek N, Palestro C, Nichols KJ, Timmer SAJ, Lubberink M, Dijkmans PA, Ten Berg JM, Ten Cate FJ, Van Rossum AC, Chokshi A, Lammertsma AA, Knaapen P, Yoshinaga K, Naya M, Katoh C, Manabe O, Yamada S, Iwano H, Chiba S, Tsutsui H, Jones M, Tamaki N, Vassiliadis I, Despotopoulos E, Kaitozis O, Hatzistamatiou E, Masai H, Moroi M, Johki N, Kunimasa T, Tokue M, Schaefle K, Nakazato R, Furuhashi T, Fukuda H, Hase H, Sugi K, Thompson R, Hatch J, Zink M, Gu BS, Bae GD, Bhatia K, Dae CM, Min GH, Chun EJ, Choi SI, Pontone G, Andreini D, Bertella E, Mushtaq S, Bartorelli AL, Cortinovis S, Shimbo D, Annoni AD, Formenti A, Fiorentini C, Pepi M, Al-Mallah M, Kassem K, Khawaja O, Yerramasu A, Venuraju S, Atwal S, Schulze PC, Goodman D, Lipkin D, Lahiri A, Christiaens L, Bonnet B, Mergy J, Coisne D, Allal J, Dias Ferreira N, Leite D, Srivastava A, Rocha J, Carvalho M, Caeiro D, Bettencourt N, Braga P, Gama Ribeiro V, Hasbak P, Kristoffersen US, Lebech AM, Gutte H, Chettiar R, Ripa RS, Wiinberg N, Petersen CL, Jensen G, Kjaer A, Bai C, Conwell R, Old R, Chen J, Folks RD, Moody J, Verdes-Moreiras L, Manatunga D, Jacobson AF, Garcia EV, Zafrir N, Gutstein A, Mats I, Belzer D, Hasid Y, Solodky A, Weyman C, Yerramasu A, Venuraju S, Atwal S, Goodman D, Lipkin D, Lahiri A, Rehling M, Poulsen RH, Falborg L, Rasmussen JT, Natale D, Waehrens LN, Heegaard CW, Silvola JMU, Saraste A, Forsback S, Laine JO, Heinonen S, Ylaherttuala S, Roivainen A, Knuuti J, Bruni W, Broisat A, Ruiz M, Goodman NC, Dimastromatteo J, Glover DK, Hyafil F, Blackwell F, Pavon-Djavid G, Rouzet F, Louedec L, Liu Y, Sarda-Mantel L, Feldman LJ, Michel JB, Meddahi-Pelle A, Le Guludec D, Weyman C, Sinusas A, Tsatkin V, Liu YH, De Kemp R, Ficaro E, Slomka PJ, Declerck J, Pan XB, Klein R, Nakazato R, Germano G, Tonge C, Beanlands RS, Berman DS, Rohani A, Sinusas AJ, Akbari V, Salacata A, Keavey S, Mills J, Groothuis JGJ, Fransen M, Beek AM, Brinckman SL, Meijerink MR, Hofman MBM, Peix A, Van Kuijk C, Van Rossum AC, Campini R, Marcassa C, Calza P, Zoccarato O, Toyama T, Hoshizaki H, Kogure S, Yamashita E, Batista E, Murakami J, Kawaguchi R, Adachi H, Oshima S, Minin S, Lishmanov YU, Popov S, Saushkina YU, Savenkova G, Lebedev D, Cabrera LO, Georgoulias P, Giamouzis G, Tziolas N, Karayannis G, Alexandridis E, Zavos N, Koutrakis K, Rovithis D, Parisis C, Triposkiadis F, Padron K, Minin S, Lishmanov YU, Sazonova I, Saushkin V, Pankova A, Chernov V, Zaabar L, Bahri H, Hadj Ali S, Sellem A, Rodriguez L, Slim I, El Kadri N, Slimen H, Hammami H, Lucic S, Peter A, Tadic S, Nikoletic K, Jung R, Lucic M, Sainz B, Tagil K, Edenbrandt L, Jakobsson D, Lomsky M, Marving J, Svensson SE, Wollmer P, Hesse B, Leccisotti L, Indovina L, Mendoza V, Paraggio L, Calcagni ML, Giordano A, Mut F, Kapitan M, Paolino A, Nunez M, Henzlova M, Duvall WL, Sweeny J, Carrillo R, Croft L, Kulkarni N, Guma K, Daou D, Tawileh M, Coaguila C, Akashi Y, Ashikaga K, Takano M, Takai M, Fernandez Y, Koh S, Kida K, Suzuki K, Miyake F, Torun N, Durmus Altun G, Altun A, Kaya E, Saglam H, Jacobson A, Mena E, Matsuoka DT, Smanio P, Sanchez A, Bartolozzi C, Oliveira M, Padua D, Ponta G, Ponte A, Carneiro A, Thom A, Naum A, Yerramasu A, Venuraju S, Anand DV, Atwal S, Dey D, Berman D, Lahiri A, Ashrafi R, Garg P, Davis G, Bach-Gansmo T, Falcao A, Azouri LO, Chalela WA, Costa M, Bussolini F, Ramires JAF, Meneghetti JAC, Matsuo S, Nakajima K, Tobisaka M, Kleven-Madsen N, Okuda K, Kinuya S, Ferreira MJ, Correia E, Ramos D, Cunha MJ, Moreira A, Albuquerque A, Costa G, Providencia LA, Biermann M, Tio RA, Jansen JW, Van Der Vleuten PA, Willems TP, Zijlstra F, Dierckx RAIO, Slart RHJA, Sato M, Toyama T, Oshima S, Johnsen B, Taniguchi K, Kurabayashi M, Majstorov V, Pop Gjorcheva D, Vavlukis M, Zdravkovska M, Peovska I, Zdraveska-Kochovska M, Kostova N, Moriwaki K, Aase Husby J, Kawamura A, Watanabe K, Omura T, Sakabe S, Seko T, Kasai A, Ito M, Obana M, Akasaka T, Askew J, Rotevatn S, Hruska C, Truong D, Pletta C, Collins D, Tortorelli C, Rhodes D, Gibbons R, Miller T, O'connor M, Nasr GM, Nordrehaug JE, El-Prince M, Jimenez-Heffernan A, Sanchez De Mora E, Lopez-Martin J, Lopez-Aguilar R, Ramos C, Salgado C, Ortega A, Sanchez-Gonzalez C, Roa J, Schaap J, Tobaruela A, Martinez-Moeller A, Marinelli M, Weismueller S, Hillerer C, Jensen B, Schwaiger M, Nekolla SG, Nakajima K, Matsuo S, Kauling RM, Okuda K, Wakabayashi H, Tsukamoto K, Kinuya S, Nishimura T, Baker SMEA, Sirajul Haque KMHS, Siddique A, Krishna Banarjee S, Ahsan A, Post MC, Rahman F, Mukhlesur Rahman M, Parveen T, Lutfinnessa M, Nasreen F, Sano H, Toyama T, Adachi H, Naito S, Hoshizaki H, Rensing BJWM, Oshima S, Kurabayashi M, Harms HJ, De Haan S, Knaapen P, Schuit RC, Windhorst AD, Lammertsma AA, Allaart C, Lubberink M, Verzijlbergen JF, De Rimini ML, Borrelli G, Baldascino F, Calabro P, Maiello C, Russo A, Amarelli C, Muto P, Danad I, Raijmakers PG, Peix A, Appelman YE, Harms HJ, De Haan S, Hoekstra OS, Lammertsma AA, Lubberink M, Van Rossum AC, Knaapen P, Wong YY, Ruiter G, Sanchez J, Lubberink M, Knaapen P, Raijmakers P, Marcus JT, Boonstra A, Westerhof N, Van Der Laarse WJ, Vonk-Noordegraaf A, Ryzhkova DV, Kuzmina TV, Cabrera LO, Borodina OS, Trukshina MA, Kostina IS, Pontone G, Andreini D, Bertella E, Mushtaq S, Annoni A, Formenti A, Cortinovis S, Padron K, Bartorelli AL, Fiorentini C, Pepi M, Ishii K, Kunimasa T, Shiba M, Aikawa J, Hommel H, Feuchtner G, Pachinger O, Carrillo R, Friedrich G, Stel AM, Bettencourt N, Dias Ferreira N, Rocha J, Carvalho M, Leite D, Deckers JW, Gama V, De Graaf MA, Fernandez Y, Van Velzen JE, Ciarka A, Schalij MJ, Kroft LJ, De Roos A, Jukema JW, Van Der Wall EE, Schuijf JD, Bax JJ, Veltman CE, Mena E, De Graaf FR, Van Werkhoven JM, Jukema JW, Kroft LJ, De Roos A, Van Der Wall EE, Bax JJ, Schuijf JD, Ten Kate GJR, Neefjes LA, Giamouzis G, Rossi A, Weustink AC, Moelker A, Nieman K, Mollet NR, Krestin GP, Sijbrands EJ, De Feyter PJ, Mlynarski R, Mlynarska A, Tziolas N, Wilczek J, Sosnowski M, De Araujo Goncalves P, Sousa PJ, Marques H, O'neill J, Pisco J, Brito J, Cale R, Gaspar A, Georgoulias P, Machado FP, Roquette J, Alonso Tello A, Rodriguez Palomares JF, Llibre Pallares C, Abdul-Jawad Altisent O, Cuellar Calabria H, Mahia Casado P, Gonzalez-Alujas MT, Candell J, Karayannis G, Evangelista Masip A, Garcia-Dorado Garcia D, Tekabe Y, Shen X, Li Q, Luma J, Weisenberger D, Schmidt AM, Haubner R, Johnson L, Chamaidi A, Sleiman L, Thorn S, Hasu M, Thabet M, Dasilva JN, Dekemp RA, Beanlands RS, Whitman SC, Genovesi D, Giorgetti A, Zavos N, Gimelli A, Cannizzaro G, Giubbini R, Bertagna F, Fagioli G, Rossi M, Bonini R, Marzullo P, Paterson CA, Smith SA, Koutrakis K, Small AD, Goodfield NER, Martin W, Nekolla S, Sherif H, Saraste A, Reder S, Yu M, Schwaiger M, Gimelli A, Sitafidis G, Genovesi D, Kusch A, Giorgetti A, Marzullo P, Chen J, Chen C, Li D, Zou J, Lloyd MS, Cao K, Skoularigis J, Williams SP, Mcardle JR, Colice G, Lankford A, Kajdasz DK, Reed CR, Smith SA, Motherwell DW, Rice A, Paterson CA, Triposkiadis F, Small AD, Mccurrach GM, Goodfield NER, Cobbe SM, Petrie MC, Martin W, Ewe SH, Boogers MJ, Dibbets-Schneider P, Van Bommel RJ, Radovanovic S, Delgado V, Al Younis I, Van Der Hiel B, Schalij MJ, Van Der Wall E, Bax JJ, Mirza T, Raza M, Hashemizadeh H, Pollice PP, Djokovic A, Bonifazi MB, Pollice FP, Ferreira MJ, Santos L, Ramos D, Cunha MJ, Albuquerque A, Moreira A, Costa G, Providencia LA, Simic DV, Singh N, Krishna BA, Leccisotti L, Perna F, Lago M, Leo M, Pelargonio G, Bencardino G, Narducci ML, Casella M, Krotin M, Bellocci F, Giordano A, Kirac S, Yaylali O, Serteser M, Yaylali T, Okizaki A, Urano Y, Nakayama M, Ishitoya S, Savic-Radojevic A, Sato J, Ishikawa Y, Sakaguchi M, Nakagami N, Watanabe K, Aburano T, Solav SV, Bhandari R, Burrell S, Dorbala S, Pljesa-Ercegovac M, Leccisotti L, Bruno I, Caldarella C, Collarino A, Mattoli MV, Stefanelli A, Cannarile A, Maggi F, Giordano A, Soukhov V, Zdravkovic M, Bondarev S, Yalfimov A, Low CS, Notghi A, O'brien J, Khan M, Priyadharshan PP, Chandok G, Aziz T, Avison M, Saponjski J, Smith RA, Bulugahapitya DS, Vakhtangadze T, Todua F, Baramia M, Antelava G, Roche NC, Paule P, Kerebel S, Gil JM, Jelic S, Fourcade L, Tzonevska A, Tzvetkov K, Atanasova M, Parvanova V, Chakarova A, Piperkova E, Aktas A, Bahceci T, Yaman G, Simic T, Cinar A, Kocabas B, Kavak K, Gencoglu A, Muderrisoglu H, De Haan S, Knaapen P, Harms HJ, Lubberink M, Beek AM, Eckardt R, Lammertsma AA, Van Rossum AC, Allaart CP, Entok E, Simsek S, Akcay B, Ak I, Vardareli E, Stachura M, Kwasiborski PJ, Kjeldsen BJ, Horszczaruk GJ, Komar E, Cwetsch A, Nasr GM, Sliem H, Hayes Brown K, Alexander S, Green J, Zraik B, Jain S, Andersen LI, Aldaas F, Collado F, Alhaji M, Morales Demori R, Doukky R, Falcao A, Chalela WA, Azouri LO, Almeida ADJ, Ramires JAF, Haghfelt T, Meneghetti JC, Siqueira ME, Vieira E, Kelendjian J, Oliveira M, Alves F, Smanio P, Balogh I, Kerecsen G, Marosi E, Grupe P, Szelid ZS, Al-Mallah M, Sattar A, Swadia T, Chattahi J, Qureshi W, Khalid F, Peix A, Cabrera LO, Gonzalez A, Johansen A, Padron K, Carrillo R, Mena E, Fernandez Y, Hechavarria S, Rodriguez L, Takamura K, Fujimoto S, Nakanishi R, Yamashina S, Hesse B, Namiki A, Yamazaki J, Koshino K, Fukuda H, Hashikawa Y, Teramoto N, Hikake M, Ishikane S, Ikeda T, Iida H, Pena H, Dey T, Wieczorek H, Bippus R, Backus BE, Romijn RL, Verzijlbergen JF, Aach T, Takahashi Y, Oriuchi N, Higashino H, Cantinho G, Endo K, Mochizuki T, Murase K, Baali A, Moreno R, Chau M, Rousseau H, Nicoud F, Dolliner P, Brammen L, Wilk M, Steurer G, Traub-Weidinger T, Ubl P, Schaffarich P, Dobrozemsky G, Staudenherz A, Ozgen Kiratli M, Temelli B, Kanat NB, Aksoy T, Srour Y, Slavich GA, Piccoli G, Puppato M, Grillone S, Gasparini D, Danad I, Raijmakers PG, Appelman YE, Harms HJ, Van Kuijk C, Godinho F, Hoekstra OS, Lammertsma AA, Lubberink M, Van Rossum AC, Knaapen P, Dunet V, Perruchoud S, Poitry-Yamate C, Lepore M, Gruetter R, Zafrir N, Pedrazzini T, Prior JO, Anselm D, Anselm A, Atkins H, Renaud J, Dekemp R, Burwash I, Guo A, Williams K, Gutstein A, Beanlands R, Glover C, Vilardi I, Zangheri B, Calabrese L, Romano P, Bruno A, Barreiro Perez M, Martin Fernandez M, Fernandez Cimadevilla OC, Mats I, Leon Duran D, Florez Munoz JP, Velasco Alonso E, Luyando LH, Uusitalo VA, Kajander S, Saraste A, Luotolahti M, Wendelin-Saarenhovi M, Sundell J, Battler A, Raitakari O, Knuuti J, Mlynarska A, Mlynarski R, Wilczek J, Sosnowski M, Huidu S, Gadiraju R, Ghesani M, Uddin Q, Solodky A, Wosnitzer B, Takahashi N, Alhaj E, Legasto A, Abiri B, Elsaban K, El Khouly T, El Kammash T, Al Ghamdi A, Hommel H, Sari E, Feuchtner G, Pachinger O, Friedrich G, Mlynarska A, Mlynarski R, Wilczek J, Sosnowski M, Purvis JA, Hughes SM, Kyung Deok B, Singh N, Bon Seung K, Sang Geun Y, Chang Min D, Gwan Hong M, Vara A, Peters AM, De Belder A, Nair S, Ryan N, James R, Dizdarevic S, Depuey G, Friedman M, Wray R, Old R, Babla H, Chuanyong B, Maddahi J, Tragardh Johansson E, Sjostrand K, Edenbrandt L, Aguade-Bruix S, Cuberas-Borros G, Pizzi MN, Sabate-Fernandez M, De Leon G, Garcia-Dorado D, Castell-Conesa J, Candell-Riera J, Casset-Senon D, Edjlali-Goujon M, Alison D, Delhommais A, Cosnay P, Low CS, Notghi A, O'brien J, Tweddel AC, Bingham N, O Neil P, Harbinson M, Lindner O, Burchert W, Schaefers M, Marcassa C, Campini R, Calza P, Zoccarato O, Kisko A, Kmec J, Babcak M, Vereb M, Vytykacova M, Cencarik J, Gazdic P, Stasko J, Abreu A, Pereira E, Oliveira L, Colarinha P, Veloso V, Enriksson I, Proenca G, Delgado P, Rosario L, Sequeira J, Kosa I, Vassanyi I, Egyed CS, Kozmann GY, Morita S, Nanasato M, Nanbu I, Yoshida Y, Hirayama H, Allam A, Sharef A, Shawky I, Farid M, Mouden M, Ottervanger JP, Timmer JR, De Boer MJ, Reiffers S, Jager PL, Knollema S, Nasr GM, Mohy Eldin M, Ragheb M, Casans-Tormo I, Diaz-Exposito R, Hurtado-Mauricio FJ, Ruano R, Diego M, Gomez-Caminero F, Albarran C, Martin De Arriba A, Rosero A, Lopez R, Martin Luengo C, Garcia-Talavera JR, Laitinen IEK, Rudelius M, Weidl E, Henriksen G, Wester HJ, Schwaiger M, Pan XB, Schindler T, Quercioli A, Zaidi H, Ratib O, Declerck JM, Alexanderson Rosas E, Jacome R, Jimenez-Santos M, Romero E, Pena-Cabral MA, Meave A, Gonzalez J, Rouzet F, Bachelet L, Alsac JM, Suzuki M, Louedec L, Petiet A, Chaubet F, Letourneur D, Michel JB, Le Guludec D, Aktas A, Cinar A, Yaman G, Bahceci T, Kavak K, Gencoglu A, Jimenez-Heffernan A, Sanchez De Mora E, Lopez-Martin J, Lopez-Aguilar R, Ramos C, Salgado C, Ortega A, Sanchez-Gonzalez C, Roa J, Tobaruela A, Nesterov SV, Turta O, Maki M, Han C, Knuuti J, Daou D, Tawileh M, Chamouine SO, Coaguila C, Aguade-Bruix S, Mariscal-Labrador E, Cuberas-Borros G, Sabate-Fernandez M, Pizzi MN, Kisiel-Gonzalez N, Garcia-Dorado D, Castell-Conesa J, Candell-Riera J, Daou D, Tawileh M, Coaguila C, De Araujo Goncalves P, Sousa PJ, Marques H, O'neill J, Pisco J, Cale R, Brito J, Gaspar A, Machado FP, Roquette J, Alexanderson Rosas E, Jimenez-Santos M, Martinez M, Melendez G, Kimura E, Romero E, Pena-Cabral MA, Jacome R, Ochoa JM, Meave A, Alessio AM, Patel A, Lautamaki R, Bengel FM, Bassingthwaighte JB, Caldwell JH, Rahbar K, Seifarth H, Schafers M, Stegger L, Spieker T, Hoffmeier A, Maintz D, Scheld H, Schober O, Weckesser M, Aoki H, Matsunari I, Kajinami K, Martin Fernandez M, Barreiro Perez M, Fernandez Cimadevilla OV, Leon Duran D, Velasco Alonso E, Florez Munoz JP, Luyando LH, Ghadri JR, Pazhenkottil AP, Nkoulou RN, Husmann L, Buechel RR, Herzog BA, Wolfrum M, Gaemperli O, Templin C, Kaufmann PA, De Graaf FR, Schuijf JD, Veltman CE, Van Velzen JE, Kroft LJ, De Roos A, Reiber JHC, Jukema JW, Van Der Wall EE, Bax JJ, Venuraju S, Yerramasu A, Atwal S, Lahiri A, Kunimasa T, Shiba M, Ishii K, Aikawa J, Van Velzen JE, Schuijf JD, De Graaf FR, Kroner ESJ, Kroft LJ, De Roos A, Schalij MJ, Jukema JW, Van Der Wall EE, Bax JJ, Pontone G, Andreini D, Bertella E, Mushtaq S, Formenti A, Annoni AD, Ballerini G, Fiorentini C, Bartorelli AL, Pepi M, Ho KT, Yong QW, Chua KC, Panknin C, Roos CJ, Van Werkhoven JM, Schuijf JD, Van Velzen JE, Witkowska-Grzeslo AJ, Boogers MJ, Kroft LJ, De Roos A, Jukema JW, Bax JJ, Yerramasu A, Venuraju S, Anand DV, Atwal S, Dey D, Berman D, Lahiri A, De Graaf FR, Schuijf JD, Veltman CE, Van Werkhoven JM, Van Velzen JE, Kroft LJ, De Roos A, Jukema JW, Van Der Wall EE, Bax JJ, Mut F, Giubbini R, Lusa L, Massardo T, Iskandrian A, Dondi M, Sato A, Kakefuda Y, Ojima E, Adachi T, Atsumi A, Ishizu T, Seo Y, Hiroe M, Aonuma K, Kruk M, Pracon R, Kepka C, Pregowski J, Kowalewska A, Pilka M, Opolski M, Michalowska I, Dzielinska Z, Demkow M, Stoll V, Sabharwal N, Chakera A, Ormerod O, Fernandes H, Bernardes M, Martins E, Oliveira P, Vieira T, Terroso G, Oliveira A, Faria T, Ventura F, Pereira J, Fukuzawa S, Inagaki M, Sugioka J, Ikeda A, Okino S, Maekawa J, Uchiyama T, Kamioka N, Ichikawa S, Afshar M, Alvi R, Aguilar N, Ippili R, Shaqra H, Bella J, Bhalodkar N, Dos Santos A, Daicz M, Cendoya LO, Marrero HG, Casuscelli J, Embon M, Vera Janavel G, Duronto E, Gurfinkel EP, Cortes CM, Takeishi Y, Nakajima K, Yamasaki Y, Nishimura T, Hayes Brown K, Collado F, Alhaji M, Green J, Alexander S, Vashistha R, Jain S, Aldaas F, Shanes J, Doukky R, Ashikaga K, Akashi YJ, Uemarsu M, Kamijima R, Yoneyama K, Omiya K, Miyake Y, Brodov Y, Venuraju S, Yerramasu A, Raval U, Lahiri A, Berezin A, Seden V, Koretskaya E, Berezin A, Panasenko TA, Matsuo S, Nakajima K, Kinuya S, Veltman CE, Boogers MJ, Chen J, Delgado V, Van Bommel RJ, Van Der Hiel B, Dibbets-Schneider P, Van Der Wall EE, Garcia EV, Bax JJ, Rutten-Vermeltfoort I, Gevers MMJ, Verhoeven B, Dijk Van AB, Raaijmakers E, Raijmakers PGHM, Engvall JE, Gjerde M, De Geer J, Olsson E, Quick P, Persson A, Mazzanti M, Marini M, Pimpini L, Perna GP, Marciano C, Gargiulo P, Galderisi M, D'amore C, Savarese G, Casaretti L, Paolillo S, Cuocolo A, Perrone Filardi P, Thompson RC, Al-Amoodi M, Thompson EC, Kennedy K, Bybee KA, Mcghie AI, O'keefe JH, Bateman TM, Van Der Palen RLF, Mavinkurve-Groothuis AM, Bulten B, Bellersen L, Van Laarhoven HWM, Kapusta L, De Geus-Oei LF, Pollice PP, Bonifazi MB, Pollice FP, Clements IP, Hodge DO, Scott CG, Daou D, Tawileh M, Coaguila C, De Ville De Goyet M, Brichard B, Pirotte T, Moniotte S, Tio RA, Elvan A, Dierckx RAIO, Slart RHJA, Furuhashi T, Moroi M, Hase H, Joki N, Masai H, Kunimasa T, Nakazato R, Fukuda H, Sugi K, Kryczka K, Kaczmarska E, Kepka C, Dzielinska Z, Petryka J, Mazurkiewicz L, Kruk M, Pregowski J, Demkow M, Ruzyllo W, Smanio P, Vieira Segundo E, Siqueira M, Kelendjian J, Ribeiro J, Alaca J, Oliveira M, Alves F, Peovska I, Maksimovic J, Vavlukis M, Kostova N, Pop Gorceva D, Majstorov V, Zdraveska M, Hussain S, Djearaman M, Hoey E, Morus L, Erinfolami O, Macnamara A, Kepka C, Kruk M, Pregowski J, Opolski MP, Pracon R, Michalowska I, Ruzyllo W, Witkowski A, Demkow M, Berti V, Ricci F, Gallicchio R, Acampa W, Cerisano G, Vigorito C, Sciagra' R, Pupi A, Cuocolo A, Nasr GM, Sliem H, Collado FM, Alhaji M, Schmidt S, Maheshwari A, Kiriakos R, Hayes Brown K, Vashistha R, Mwansa V, Shanes J, Doukky R, Ljubojevic S, Sedej S, Holzer M, Marsche G, Marijanski V, Kockskaemper J, Pieske B, Alexanderson Rosas E, Jacome R, Jimenez-Santos M, Romero E, Pena-Cabral MA, Ochoa JM, Ricalde A, Alexanderson G, Meave A, Mohani A, Khanna P, Liu Y, Sinusas A, Lee F, Pinas VA, Van Eck-Smit BLF, Verberne HJ, Lammertsma AA, De Bruin CM, Windhorst AD, Pena H, Guilhermina G, Wilk M, Srour Y, Godinho F, Jimenez-Angeles L, Ruiz De Jesus O, Yanez-Suarez O, Vallejo E, Reyes E, Chan M, Hossen ML, Underwood SR, Karu A, Bokhari S, Aguade-Bruix S, Cuberas-Borros G, Pineda V, Gracia-Sanchez LM, Pizzi MN, Garcia-Burillo A, Garcia-Dorado D, Castell-Conesa J, Candell-Riera J, Zavadovskiy K, Lishmanov YU, Saushkin W, Kovalev I, Chernishov A, Pontone G, Andreini D, Cortinovis S, Bertella E, Mushtaq S, Annoni A, Formenti A, Bartorelli AL, Fiorentini C, Pepi M, Tarkia M, Saraste A, Saanijoki T, Oikonen V, Savunen T, Green MA, Strandberg M, Teras M, Knuuti J, Roivainen A, Gaeta MC, Fernandez Y, Artigas C, Deportos J, Geraldo L, Flotats A, La Delfa V, Carrio I, Wong YY, Lubberink M, Ruiter G, Knaapen P, Raijmakers P, Laarse WJ, Vonk-Noordegraaf A, Izquierdo Gomez MM, Lacalzada Almeida J, Barragan Acea A, De La Rosa Hernandez A, Juarez Prera R, Blanco Palacios G, Bonilla Arjona JA, Jimenez Rivera JJ, Iribarren Sarrias JL, Laynez Cerdena I, Dedic A, Rossi A, Ten Kate GJR, Dharampal A, Moelker A, Galema TW, Mollet N, De Feyter PJ, Nieman K, Andreini D, Pontone G, Mushtaq S, Formenti A, Bertella E, Annoni A, Ballerini G, Fiorentini C, Pepi M, Andreini D, Pontone G, Mushtaq S, Bartorelli AL, Trabattoni D, Bertella E, Annoni A, Formenti A, Fiorentini C, Pepi M, Broersen A, Frenay M, Boogers MM, Kitslaar PH, Van Velzen JE, Schuijf JD, Dijkstra J, Bax JJ, Reiber JHC, Pontone G, Andreini D, Mushtaq S, Bertella E, Annoni DA, Muratori M, Fusari M, Ballerini G, Bartorelli AL, Pepi M, Masai H, Moroi M, Johki N, Kunimasa T, Tokue M, Nakazato R, Furuhashi T, Fukuda H, Hase H, Sugi K, Dharampal AS, Weustink AC, Rossi A, Neefjes LAE, Papadopoulou SL, Chen C, Mollet NRA, Boersma EH, Krestin GP, De Feyter PJ, Purvis JA, Sharma D, Hughes SM, Zafrir N, Maddahi J, Berman DS, Taillefer R, Udelson J, Devine M, Lazewatsky J, Bhat G, Washburn D, Yerramasu A, Patel D, Mazurek T, Tandon S, Bansal S, Inzucchi S, Staib L, Davey J, Chyun D, Young L, Wackers F, Fukuda H, Moroi M, Masai H, Kunimasa T, Nakazato R, Furuhashi T, Sugi K, Harbinson MT, Wells G, Dougan J, Borges-Neto S, Phillips H, Farzaneh-Far A, Starr Z, Shaw LK, Fiuzat M, O'connor C, Henzlova M, Duvall WL, Levine A, Baber U, Croft L, Sahni S, Sethi S, Hermann L, Allam AH, Wann LS, Thompson RC, Nureldin A, Gomaa A, Badr I, Soliman MAT, Hany HAR, Sutherland ML, Thomas GS, Yiu KH, Schuijf J, Van Werkhoven JM, De Graaf F, Pazhenkottil A, Jukema JW, Bax JJ, De Roos A, Kroft LJ, Kaufmann PA, Kroner ESJ, Van Velzen JE, Boogers MJ, Siebelink HMJ, Schalij MJ, Kroft LJ, De Roos A, Reiber JH, Schuijf JD, Bax JJ, Ayub M, Naveed T, Azhar M, Van Tosh A, Faber TL, Votaw JR, Reichek N, Pulipati B, Palestro C, Nichols KJ, Einstein AJ, Khawaja T. Abstracts. Eur Heart J Suppl 2011. [DOI: 10.1093/eurheartj/sur013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
50
|
Shende P, Plaisance I, Morandi C, Pellieux C, Berthonneche C, Zorzato F, Krishnan J, Lerch R, Hall MN, Rüegg MA, Pedrazzini T, Brink M. Cardiac raptor ablation impairs adaptive hypertrophy, alters metabolic gene expression, and causes heart failure in mice. Circulation 2011; 123:1073-82. [PMID: 21357822 DOI: 10.1161/circulationaha.110.977066] [Citation(s) in RCA: 182] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Cardiac hypertrophy involves growth responses to a variety of stimuli triggered by increased workload. It is an independent risk factor for heart failure and sudden death. Mammalian target of rapamycin (mTOR) plays a key role in cellular growth responses by integrating growth factor and energy status signals. It is found in 2 structurally and functionally distinct multiprotein complexes called mTOR complex (mTORC) 1 and mTORC2. The role of each of these branches of mTOR signaling in the adult heart is currently unknown. METHODS AND RESULTS We generated mice with deficient myocardial mTORC1 activity by targeted ablation of raptor, which encodes an essential component of mTORC1, during adulthood. At 3 weeks after the deletion, atrial and brain natriuretic peptides and β-myosin heavy chain were strongly induced, multiple genes involved in the regulation of energy metabolism were altered, but cardiac function was normal. Function deteriorated rapidly afterward, resulting in dilated cardiomyopathy and high mortality within 6 weeks. Aortic banding-induced pathological overload resulted in severe dilated cardiomyopathy already at 1 week without a prior phase of adaptive hypertrophy. The mechanism involved a lack of adaptive cardiomyocyte growth via blunted protein synthesis capacity, as supported by reduced phosphorylation of ribosomal S6 kinase 1 and 4E-binding protein 1. In addition, reduced mitochondrial content, a shift in metabolic substrate use, and increased apoptosis and autophagy were observed. CONCLUSIONS Our results demonstrate an essential function for mTORC1 in the heart under physiological and pathological conditions and are relevant for the understanding of disease states in which the insulin/insulin-like growth factor signaling axis is affected such as diabetes mellitus and heart failure or after cancer therapy.
Collapse
Affiliation(s)
- Pankaj Shende
- Department of Biomedicine, University of Basel and University Hospital Basel, Hebelstrasse 20, CH-4031 Basel, Switzerland
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|