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Abstract
Maturation is the last phase of heart development that prepares the organ for strong, efficient, and persistent pumping throughout the mammal's lifespan. This process is characterized by structural, gene expression, metabolic, and functional specializations in cardiomyocytes as the heart transits from fetal to adult states. Cardiomyocyte maturation gained increased attention recently due to the maturation defects in pluripotent stem cell-derived cardiomyocyte, its antagonistic effect on myocardial regeneration, and its potential contribution to cardiac disease. Here, we review the major hallmarks of ventricular cardiomyocyte maturation and summarize key regulatory mechanisms that promote and coordinate these cellular events. With advances in the technical platforms used for cardiomyocyte maturation research, we expect significant progress in the future that will deepen our understanding of this process and lead to better maturation of pluripotent stem cell-derived cardiomyocyte and novel therapeutic strategies for heart disease.
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Affiliation(s)
- Yuxuan Guo
- Department of Cardiology, Boston Children’s Hospital, Boston, MA 02115, USA
| | - William Pu
- Department of Cardiology, Boston Children’s Hospital, Boston, MA 02115, USA
- Harvard Stem Cell Institute, Cambridge, MA 02138, USA
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Cardiac regeneration as an environmental adaptation. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2020; 1867:118623. [DOI: 10.1016/j.bbamcr.2019.118623] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 12/02/2019] [Accepted: 12/10/2019] [Indexed: 12/15/2022]
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Nakao S, Tsukamoto T, Ueyama T, Kawamura T. STAT3 for Cardiac Regenerative Medicine: Involvement in Stem Cell Biology, Pathophysiology, and Bioengineering. Int J Mol Sci 2020; 21:ijms21061937. [PMID: 32178385 PMCID: PMC7139789 DOI: 10.3390/ijms21061937] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 03/07/2020] [Accepted: 03/10/2020] [Indexed: 12/28/2022] Open
Abstract
Heart disease is the most common cause of death in developed countries, but the medical treatments for heart failure remain limited. In this context, the development of cardiac regeneration therapy for severe heart failure is important. Owing to their unique characteristics, including multiple differentiation and infinitive self-renewal, pluripotent stem cells can be considered as a novel source for regenerative medicine. Janus kinase/signal transducer and activator of transcription 3 (JAK/STAT3) signaling plays critical roles in the induction, maintenance, and differentiation of pluripotent stem cells. In the heart, JAK/STAT3 signaling has diverse cellular functions, including myocardial differentiation, cell cycle re-entry of matured myocyte after injury, and anti-apoptosis in pathological conditions. Therefore, regulating STAT3 activity has great potential as a strategy of cardiac regeneration therapy. In this review, we summarize the current understanding of STAT3, focusing on stem cell biology and pathophysiology, as they contribute to cardiac regeneration therapy. We also introduce a recently reported therapeutic strategy for myocardial regeneration that uses engineered artificial receptors that trigger endogenous STAT3 signal activation.
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Affiliation(s)
- Shu Nakao
- Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, Japan; (S.N.); (T.T.); (T.U.)
- Ritsumeikan Global Innovation Research Institute, Ritsumeikan University, Kusatsu 525-8577, Japan
| | - Tasuku Tsukamoto
- Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, Japan; (S.N.); (T.T.); (T.U.)
- Ritsumeikan Global Innovation Research Institute, Ritsumeikan University, Kusatsu 525-8577, Japan
| | - Tomoe Ueyama
- Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, Japan; (S.N.); (T.T.); (T.U.)
- Ritsumeikan Global Innovation Research Institute, Ritsumeikan University, Kusatsu 525-8577, Japan
| | - Teruhisa Kawamura
- Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University, Kusatsu 525-8577, Japan; (S.N.); (T.T.); (T.U.)
- Ritsumeikan Global Innovation Research Institute, Ritsumeikan University, Kusatsu 525-8577, Japan
- Correspondence: ; Tel.: +81-75-599-4327
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Zlatanova I, Pinto C, Bonnin P, Mathieu JRR, Bakker W, Vilar J, Lemitre M, Voehringer D, Vaulont S, Peyssonnaux C, Silvestre JS. Iron Regulator Hepcidin Impairs Macrophage-Dependent Cardiac Repair After Injury. Circulation 2019; 139:1530-1547. [PMID: 30586758 DOI: 10.1161/circulationaha.118.034545] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
BACKGROUND Defective systemic and local iron metabolism correlates with cardiac disorders. Hepcidin, a master iron sensor, actively tunes iron trafficking. We hypothesized that hepcidin could play a key role to locally regulate cardiac homeostasis after acute myocardial infarction. METHODS Cardiac repair was analyzed in mice harboring specific cardiomyocyte or myeloid cell deficiency of hepcidin and challenged with acute myocardial infarction. RESULTS We found that the expression of hepcidin was elevated after acute myocardial infarction and the specific deletion of hepcidin in cardiomyocytes failed to improve cardiac repair and function. However, transplantation of bone marrow-derived cells from hepcidin-deficient mice ( Hamp-/-) or from mice with specific deletion of hepcidin in myeloid cells (LysMCRE/+/ Hampf/f) improved cardiac function. This effect was associated with a robust reduction in the infarct size and tissue fibrosis in addition to favoring cardiomyocyte renewal. Macrophages lacking hepcidin promoted cardiomyocyte proliferation in a prototypic model of apical resection-induced cardiac regeneration in neonatal mice. Interleukin (IL)-6 increased hepcidin levels in inflammatory macrophages. Hepcidin deficiency enhanced the number of CD45+/CD11b+/F4/80+/CD64+/MHCIILow/chemokine (C-C motif) receptor 2 (CCR2)+ inflammatory macrophages and fostered signal transducer and activator of transcription factor-3 (STAT3) phosphorylation, an instrumental step in the release of IL-4 and IL-13. The combined genetic suppression of hepcidin and IL-4/IL-13 in macrophages failed to improve cardiac function in both adult and neonatal injured hearts. CONCLUSIONS Hepcidin refrains macrophage-induced cardiac repair and regeneration through modulation of IL-4/IL-13 pathways.
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Affiliation(s)
- Ivana Zlatanova
- Institut National de la Santé et de la Recherche Médicale, UMRS-970, Paris Centre de Recherche Cardiovasculaire, Université Paris Descartes, Sorbonne Paris Cité, France (I.Z., C.P., W.B., J.V., M.L., J.-S-.S.)
| | - Cristina Pinto
- Institut National de la Santé et de la Recherche Médicale, UMRS-970, Paris Centre de Recherche Cardiovasculaire, Université Paris Descartes, Sorbonne Paris Cité, France (I.Z., C.P., W.B., J.V., M.L., J.-S-.S.)
| | - Philippe Bonnin
- Institut National de la Santé et de la Recherche Médicale, Unit 965, Départment de physiologie Clinique, Assistance Publique Hôpitaux de Paris, Hôpital Lariboisière, France (P.B.)
| | - Jacques R R Mathieu
- Institut National de la Santé et de la Recherche Médicale U1016, CNRS UMR 8104, Institut Cochin, Université Paris Descartes, Sorbonne Paris Cité, France (J.R.R.M., S.V., C.P.)
| | - Wineke Bakker
- Institut National de la Santé et de la Recherche Médicale, UMRS-970, Paris Centre de Recherche Cardiovasculaire, Université Paris Descartes, Sorbonne Paris Cité, France (I.Z., C.P., W.B., J.V., M.L., J.-S-.S.)
| | - Jose Vilar
- Institut National de la Santé et de la Recherche Médicale, UMRS-970, Paris Centre de Recherche Cardiovasculaire, Université Paris Descartes, Sorbonne Paris Cité, France (I.Z., C.P., W.B., J.V., M.L., J.-S-.S.)
| | - Mathilde Lemitre
- Institut National de la Santé et de la Recherche Médicale, UMRS-970, Paris Centre de Recherche Cardiovasculaire, Université Paris Descartes, Sorbonne Paris Cité, France (I.Z., C.P., W.B., J.V., M.L., J.-S-.S.)
| | - David Voehringer
- University Hospital Erlangen, Wasserturmstrasse 3/5, Germany (D.V.)
| | - Sophie Vaulont
- Institut National de la Santé et de la Recherche Médicale U1016, CNRS UMR 8104, Institut Cochin, Université Paris Descartes, Sorbonne Paris Cité, France (J.R.R.M., S.V., C.P.)
| | - Carole Peyssonnaux
- Institut National de la Santé et de la Recherche Médicale U1016, CNRS UMR 8104, Institut Cochin, Université Paris Descartes, Sorbonne Paris Cité, France (J.R.R.M., S.V., C.P.)
| | - Jean-Sébastien Silvestre
- Institut National de la Santé et de la Recherche Médicale, UMRS-970, Paris Centre de Recherche Cardiovasculaire, Université Paris Descartes, Sorbonne Paris Cité, France (I.Z., C.P., W.B., J.V., M.L., J.-S-.S.)
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Re-enforcing hypoxia-induced polyploid cardiomyocytes enter cytokinesis through activation of β-catenin. Sci Rep 2019; 9:17865. [PMID: 31780774 PMCID: PMC6883062 DOI: 10.1038/s41598-019-54334-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 11/08/2019] [Indexed: 01/01/2023] Open
Abstract
Cardiomyocyte (CM) loss is a characteristic of various heart diseases, including ischaemic heart disease. Cardiac regeneration has been suggested as a promising strategy to address CM loss. Although many studies of regeneration have focused mainly on mononucleated or diploid CM, the limitations associated with the cytokinesis of polyploid and multinucleated CMs remain less well known. Here, we show that β-catenin, a key regulator in heart development, can increase cytokinesis in polyploid multinucleated CMs. The activation of β-catenin increases the expression of the cytokinesis-related factor epithelial cell transforming 2 (ECT2), which regulates the actomyosin ring and thus leads to the completion of cytokinesis in polyploid CMs. In addition, hypoxia can induce polyploid and multinucleated CMs by increasing factors related to the G1-S-anaphase of the cell cycle, but not those related to cytokinesis. Our study therefore reveals that the β-catenin can promote the cytokinesis of polyploid multinucleated CMs via upregulation of ECT2. These findings suggest a potential field of polyploid CM research that may be exploitable for cardiac regeneration therapy.
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Spatiotemporal Dynamics of Immune Cells in Early Left Ventricular Remodeling After Acute Myocardial Infarction in Mice. J Cardiovasc Pharmacol 2019; 75:112-122. [PMID: 31764396 DOI: 10.1097/fjc.0000000000000777] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Myocardial infarction remains a leading cause of morbidity and death. Insufficient delivery of oxygen to the myocardium sets into play a complicated process of repair that involves the temporal recruitment of different immune cells so as to remove debris and necrotic cells expeditiously and to form effective scar tissue. Clearly defined and overlapping phases have been identified in the process, which transitions from an overall proinflammatory to anti-inflammatory phenotype with time. Variations in the strength of the phases as well as in the co-ordination among them have profound consequences. Too strong of an inflammatory phase can result in left ventricular wall thinning and eventual rupture, whereas too strong of an anti-inflammatory phase can lead to cardiac stiffening, arrhythmias, or ventricular aneurisms. In both cases, heart failure is an intermediate consequence with death being the likely outcome. Here, we summarize the role of key immune cells in the repair process of the heart after left ventricular myocardial infarction, along with the associated cytokines and chemokines. A better understanding of the immune response ought to lead hopefully to improved therapies that exploit the natural repair process for mending the infarcted heart.
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57
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Flinn MA, Link BA, O'Meara CC. Upstream regulation of the Hippo-Yap pathway in cardiomyocyte regeneration. Semin Cell Dev Biol 2019; 100:11-19. [PMID: 31606277 DOI: 10.1016/j.semcdb.2019.09.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 08/27/2019] [Accepted: 09/11/2019] [Indexed: 12/17/2022]
Abstract
The response of the adult mammalian heart to injury such as myocardial infarction has long been described as primarily fibrotic scarring and adverse remodeling with little to no regeneration of cardiomyocytes. Emerging studies have challenged this paradigm by demonstrating that, indeed, adult mammalian cardiomyocytes are capable of completing cytokinesis albeit at levels vastly insufficient to compensate for the loss of functional cardiomyocytes following ischemic injury. Thus, there is great interest in identifying mechanisms to guide adult cardiomyocyte cell cycle re-entry and facilitate endogenous heart regeneration. The Hippo signaling pathway is a core kinase cascade that functions to suppress the transcriptional co-activators Yap and Taz by phosphorylation and therefore cytoplasmic retention or phospho-degradation. This pathway has recently sparked interest in the field of cardiac regeneration as inhibition of Hippo kinase signaling or overdriving the transcriptional co-activator, Yap, significantly promotes proliferation of terminally differentiated adult mammalian cardiomyocytes and can restore function in failing mouse hearts. Thus, the Hippo pathway is an attractive therapeutic target for promoting cardiomyocyte renewal and cardiac regeneration. Although the core kinases and transcriptional activators of the Hippo pathway have been studied extensively over the last twenty years, the regulatory inputs of this pathway, particularly in vertebrates, are poorly understood. Recent studies have elucidated several upstream regulatory inputs to the Hippo pathway in adult mammalian cardiomyocytes that influence cell proliferation and heart regeneration. Considering upstream inputs to the Hippo pathway are thought to be context and cell type specific, targeting these various components could serve as a therapeutic approach for refining Hippo-Yap signaling in the heart. Here, we provide an overview of the emerging regulatory inputs to the Hippo pathway as they relate to mammalian cardiomyocytes and heart regeneration.
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Affiliation(s)
- Michael A Flinn
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, USA; Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Brian A Link
- Department of Cell Biology, Neurobiology, and Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA; Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Caitlin C O'Meara
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, USA; Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, USA; Genomics Sciences and Precision Medicine Center, Medical College of Wisconsin, Milwaukee, WI, USA.
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Ben-Yair R, Butty VL, Busby M, Qiu Y, Levine SS, Goren A, Boyer LA, Burns CG, Burns CE. H3K27me3-mediated silencing of structural genes is required for zebrafish heart regeneration. Development 2019; 146:dev178632. [PMID: 31427288 PMCID: PMC6803378 DOI: 10.1242/dev.178632] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 08/07/2019] [Indexed: 12/13/2022]
Abstract
Deciphering the genetic and epigenetic regulation of cardiomyocyte proliferation in organisms that are capable of robust cardiac renewal, such as zebrafish, represents an attractive inroad towards regenerating the human heart. Using integrated high-throughput transcriptional and chromatin analyses, we have identified a strong association between H3K27me3 deposition and reduced sarcomere and cytoskeletal gene expression in proliferative cardiomyocytes following cardiac injury in zebrafish. To move beyond an association, we generated an inducible transgenic strain expressing a mutant version of histone 3, H3.3K27M, that inhibits H3K27me3 catalysis in cardiomyocytes during the regenerative window. Hearts comprising H3.3K27M-expressing cardiomyocytes fail to regenerate, with wound edge cells showing heightened expression of structural genes and prominent sarcomeres. Although cell cycle re-entry was unperturbed, cytokinesis and wound invasion were significantly compromised. Collectively, our study identifies H3K27me3-mediated silencing of structural genes as requisite for zebrafish heart regeneration and suggests that repression of similar structural components in the border zone of an infarcted human heart might improve its regenerative capacity.
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Affiliation(s)
- Raz Ben-Yair
- Cardiovascular Research Center, Massachusetts General Hospital, Charlestown, MA 02129, USA
- Harvard Medical School, Boston, MA 02115, USA
| | - Vincent L Butty
- Departments of Biology and Biological Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Michele Busby
- The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Yutong Qiu
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Stuart S Levine
- Departments of Biology and Biological Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Alon Goren
- The Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Laurie A Boyer
- Departments of Biology and Biological Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - C Geoffrey Burns
- Cardiovascular Research Center, Massachusetts General Hospital, Charlestown, MA 02129, USA
- Harvard Medical School, Boston, MA 02115, USA
- Department of Cardiology, Boston Children's Hospital, Boston, MA 02115, USA
| | - Caroline E Burns
- Cardiovascular Research Center, Massachusetts General Hospital, Charlestown, MA 02129, USA
- Harvard Medical School, Boston, MA 02115, USA
- Department of Cardiology, Boston Children's Hospital, Boston, MA 02115, USA
- Harvard Stem Cell Institute, Cambridge, MA 02138, USA
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Vujic A, Natarajan N, Lee RT. Molecular mechanisms of heart regeneration. Semin Cell Dev Biol 2019; 100:20-28. [PMID: 31587963 DOI: 10.1016/j.semcdb.2019.09.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 08/20/2019] [Accepted: 09/11/2019] [Indexed: 12/27/2022]
Abstract
The adult mammalian heart is incapable of clinically relevant regeneration. The regenerative deficit in adult mammalian heart contrasts with the fetal and neonatal heart, which demonstrate substantial regenerative capacity after injury. This deficiency in adult mammals is attributable to the lack of resident stem cells after birth, combined with an inability of pre-existing cardiomyocytes to complete cytokinesis. Studies of neonatal heart regeneration in mammals suggest that latent regenerative potential can be re-activated. Dissecting the cellular and molecular mechanisms that promote cardiomyocyte proliferation is key to stimulating true regeneration in adult humans. Here, we review recent advances in our understanding of cardiomyocyte proliferation that suggest molecular approaches to heart regeneration.
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Affiliation(s)
- Ana Vujic
- Department of Stem Cell and Regenerative Biology and the Harvard Stem Cell Institute, Harvard University, Cambridge, MA, 02138, USA
| | - Niranjana Natarajan
- Department of Stem Cell and Regenerative Biology and the Harvard Stem Cell Institute, Harvard University, Cambridge, MA, 02138, USA
| | - Richard T Lee
- Department of Stem Cell and Regenerative Biology and the Harvard Stem Cell Institute, Harvard University, Cambridge, MA, 02138, USA; Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA.
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60
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Rotter Sopasakis V, Sandstedt J, Johansson M, Lundqvist A, Bergström G, Jeppsson A, Mattsson Hultén L. Toll-like receptor-mediated inflammation markers are strongly induced in heart tissue in patients with cardiac disease under both ischemic and non-ischemic conditions. Int J Cardiol 2019; 293:238-247. [PMID: 31230935 DOI: 10.1016/j.ijcard.2019.06.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 05/29/2019] [Accepted: 06/12/2019] [Indexed: 01/04/2023]
Abstract
BACKGROUND A sustained low grade inflammatory state is a recognized feature of various diseases, including cardiovascular disease. This state of chronic inflammation involves activation of Toll-like receptor (TLR) signaling. However, little is known regarding the genetic profile of TLR components in cardiac tissue from patients with cardiac disease. METHODS In this study we investigated the genetic profile of 84 TLR markers in a unique set of cardiac tissue from patients that had undergone either coronary artery bypass grafting (CABG) or aortic valve replacement (AVR). In addition, we compared the gene data from the cardiac tissue with the same gene profile in blood as well as circulating cytokines to elucidate possible targets in blood that could be used to estimate the inflammatory state of the heart in cardiac disease. RESULTS We found a marked upregulation of TLR-induced inflammation in cardiac tissue from both patient groups compared to healthy controls. The inflammation appeared to be primarily mediated through TLR1, 3, 7, 8 and 10, resulting in a marked induction of mediators of the innate immune response. Furthermore, the gene expression data in combination with unbiased multivariate analysis suggested a difference in inflammatory response in ischemic cardiac tissue compared to non-ischemic cardiac tissue. Serum levels of IL-13 were significantly elevated in both CABG and AVR patients compared to controls, whereas other cytokines did not appear to coincide with cardiac TLR-induced inflammation. CONCLUSIONS We propose that cardiac disease in humans may be mediated by local cardiac TLR signaling under both ischemic and non-ischemic conditions.
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Affiliation(s)
- Victoria Rotter Sopasakis
- Department of Clinical Chemistry, Sahlgrenska University Hospital and Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden.
| | - Joakim Sandstedt
- Department of Clinical Chemistry, Sahlgrenska University Hospital and Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden
| | - Michaela Johansson
- Department of Clinical Chemistry, Sahlgrenska University Hospital and Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden
| | - Annika Lundqvist
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden
| | - Göran Bergström
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden
| | - Anders Jeppsson
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; Department of Cardiothoracic Surgery, Sahlgrenska University Hospital, SE-413 45 Gothenburg, Sweden
| | - Lillemor Mattsson Hultén
- Department of Clinical Chemistry, Sahlgrenska University Hospital and Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden
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Senyo SE. Price check on A(i)s(l)e 13: investigation of interleukin-13 activity in cardiac regeneration. Am J Physiol Heart Circ Physiol 2019; 316:H262-H264. [PMID: 30462551 DOI: 10.1152/ajpheart.00718.2018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Xu JY, Xiong YY, Lu XT, Yang YJ. Regulation of Type 2 Immunity in Myocardial Infarction. Front Immunol 2019; 10:62. [PMID: 30761134 PMCID: PMC6362944 DOI: 10.3389/fimmu.2019.00062] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 01/11/2019] [Indexed: 12/12/2022] Open
Abstract
Type 2 immunity participates in the pathogeneses of helminth infection and allergic diseases. Emerging evidence indicates that the components of type 2 immunity are also involved in maintaining metabolic hemostasis and facilitating the healing process after tissue injury. Numerous preclinical studies have suggested regulation of type 2 immunity-related cytokines, such as interleukin-4, -13, and -33, and cell types, such as M2 macrophages, mast cells, and eosinophils, affects cardiac functions after myocardial infarction (MI), providing new insights into the importance of immune modulation in the infarcted heart. This review provides an overview of the functions of these cytokines and cells in the setting of MI as well as their potential to predict the severity and prognosis of MI.
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Affiliation(s)
- Jun-Yan Xu
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Yu-Yan Xiong
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Xiao-Tong Lu
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yue-Jin Yang
- State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
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63
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Savla JJ, Levine BD, Sadek HA. The Effect of Hypoxia on Cardiovascular Disease: Friend or Foe? High Alt Med Biol 2019; 19:124-130. [PMID: 29939783 DOI: 10.1089/ham.2018.0044] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Savla, Jainy J., Benjamin D. Levine, and Hesham A. Sadek. The effect of hypoxia on cardiovascular disease: Friend or foe? High Alt Med Biol. 19:124-130, 2018.-Over 140 million people reside at altitudes exceeding 2500 m across the world, resulting in exposure to atmospheric (hypobaric) hypoxia. Whether this chronic exposure is beneficial or detrimental to the cardiovascular system, however, is uncertain. On one hand, multiple studies have suggested a protective effect of living at moderate and high altitudes for cardiovascular risk factors and cardiovascular disease (CVD) events. Conversely, residence at high altitude comes at the tradeoff of developing diseases such as chronic mountain sickness and high-altitude pulmonary hypertension and worsens outcomes for diseases such as chronic obstructive pulmonary disease. Interestingly, recently published data show a potential role for severe hypoxia as a unique and unexpected therapy after myocardial infarction. In this review, we will discuss the current literature evaluating the effects of altitude exposure and the accompanying hypoxia on health and the potential therapeutic applications of hypoxia on CVD.
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Affiliation(s)
- Jainy J Savla
- 1 Department of Cardiology, University of Texas Southwestern Medical Center , Dallas, Texas
| | - Benjamin D Levine
- 1 Department of Cardiology, University of Texas Southwestern Medical Center , Dallas, Texas
- 2 Institute for Exercise and Environmental Medicine , Texas Health Presbyterian Hospital, Dallas, Texas
| | - Hesham A Sadek
- 1 Department of Cardiology, University of Texas Southwestern Medical Center , Dallas, Texas
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The Structure of the Periostin Gene, Its Transcriptional Control and Alternative Splicing, and Protein Expression. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1132:7-20. [PMID: 31037620 DOI: 10.1007/978-981-13-6657-4_2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Although many studies have described the role of periostin in various diseases, the functions of periostin derived from alternative splicing and proteinase cleavage at its C-terminus remain unknown. Further experiments investigating the periostin structures that are relevant to diseases are essential for an in-depth understanding of their functions, which would accelerate their clinical applications by establishing new approaches for curing intractable diseases. Furthermore, this understanding would enhance our knowledge of novel functions of periostin related to stemness and response to mechanical stress .
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65
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Begeman IJ, Kang J. Transcriptional Programs and Regeneration Enhancers Underlying Heart Regeneration. J Cardiovasc Dev Dis 2018; 6:jcdd6010002. [PMID: 30583498 PMCID: PMC6463103 DOI: 10.3390/jcdd6010002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 12/10/2018] [Accepted: 12/12/2018] [Indexed: 12/31/2022] Open
Abstract
The heart plays the vital role of propelling blood to the entire body, which is essential to life. While maintaining heart function is critical, adult mammalian hearts poorly regenerate damaged cardiac tissue upon injury and form scar tissue instead. Unlike adult mammals, adult zebrafish can regenerate injured hearts with no sign of scarring, making zebrafish an ideal model system with which to study the molecular mechanisms underlying heart regeneration. Investigation of heart regeneration in zebrafish together with mice has revealed multiple cardiac regeneration genes that are induced by injury to facilitate heart regeneration. Altered expression of these regeneration genes in adult mammals is one of the main causes of heart regeneration failure. Previous studies have focused on the roles of these regeneration genes, yet the regulatory mechanisms by which the expression of cardiac regeneration genes is precisely controlled are largely unknown. In this review, we will discuss the importance of differential gene expression for heart regeneration, the recent discovery of cardiac injury or regeneration enhancers, and their impact on heart regeneration.
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Affiliation(s)
- Ian J Begeman
- Department of Cell and Regenerative Biology, University of Wisconsin School of Medicine and Public Health, University of Wisconsin⁻Madison, Madison, WI 53705, USA.
| | - Junsu Kang
- Department of Cell and Regenerative Biology, University of Wisconsin School of Medicine and Public Health, University of Wisconsin⁻Madison, Madison, WI 53705, USA.
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Kurdi M, Zgheib C, Booz GW. Recent Developments on the Crosstalk Between STAT3 and Inflammation in Heart Function and Disease. Front Immunol 2018; 9:3029. [PMID: 30619368 PMCID: PMC6305745 DOI: 10.3389/fimmu.2018.03029] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Accepted: 12/07/2018] [Indexed: 12/27/2022] Open
Abstract
The transcription factor STAT3 has a protective function in the heart. Until recently, the role of STAT3 in hypertension-induced cardiac hypertrophy was unsettled. Earlier studies revealed that global reduction of STAT3 activity reduced cardiac hypertrophy with hypertension, but caused a disruption of myofilaments and increased contractile dysfunction. However, newer studies with cardiomyocyte-specific deletion of STAT3 indicate that STAT3 does not cause cardiac hypertrophy with increased blood pressure. Rather, cardiac STAT3 is important for maintaining metabolic homeostasis, and loss of STAT3 in cardiomyocytes makes the heart more susceptible to chronic pathological insult, for example by disrupting glucose metabolism and protective signaling networks via the upregulation of certain microRNAs. This scenario has implications for understanding peripartum cardiomyopathy as well. In viral myocarditis, STAT3 opposes the initiation of the dilated phenotype by maintaining membrane integrity via the expression of dystrophin. STAT3 signaling was also found to attenuate myocarditis by polarizing macrophages to a less inflammatory phenotype. On the other hand, STAT3 contributes to immune-mediated myocarditis due to IL-6-induced complement component C3 production in the liver, as well as the differentiation of Th17 cells, which play a role in initiation and development of myocarditis. Besides canonical signaling pathways, unphosphorylated STAT3 (U-STAT3) and redox-activated STAT3 have been shown to couple to transcription in the heart. In addition, tissue signaling cytokines such as IL-22 and IL-17 have been proposed to have actions on the heart that involve STAT3, but are not fully defined. Understanding the novel and often protective aspects of STAT3 in the myocardium could lead to new therapeutic approaches to treat heart disease.
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Affiliation(s)
- Mazen Kurdi
- Faculty of Sciences, Department of Chemistry and Biochemistry, and The Laboratory of Experimental and Clinical Pharmacology, Lebanese University, Beirut, Lebanon
| | - Carlos Zgheib
- Laboratory for Fetal and Regenerative Biology, Department of Surgery, School of Medicine, University of Colorado Denver, Anschutz Medical Campus and Colorado Children's Hospital, Aurora, CO, United States
| | - George W. Booz
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS, United States
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67
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Zhu W, Zhang E, Zhao M, Chong Z, Fan C, Tang Y, Hunter JD, Borovjagin AV, Walcott GP, Chen JY, Qin G, Zhang J. Regenerative Potential of Neonatal Porcine Hearts. Circulation 2018; 138:2809-2816. [PMID: 30030418 DOI: 10.1161/circulationaha.118.034886] [Citation(s) in RCA: 169] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Rodent hearts can regenerate myocardium lost to apical resection or myocardial infarction for up to 7 days after birth, but whether a similar window for myocardial regeneration also exists in large mammals is unknown. METHODS Acute myocardial infarction (AMI) was surgically induced in neonatal pigs on postnatal days 1, 2, 3, 7, and 14 (ie, the P1, P2, P3, P7, and P14 groups, respectively). Cardiac systolic function was evaluated before AMI and at 30 days post-AMI via transthoracic echocardiography. Cardiomyocyte cell cycle activity was assessed via immunostaining for proliferation and mitosis markers, infarct size was evaluated histologically, and telomerase activity was measured by quantitative polymerase chain reaction. RESULTS Systolic function at day 30 post-AMI was largely restored in P1 animals and partially restored in P2 animals, but significantly impaired when AMI was induced on postnatal day 3 or later. Hearts of P1 animals showed little evidence of scar formation or wall thinning on day 30 after AMI, with increased measures of cell-cycle activity seen 6 days after AMI (ie, postnatal day 7) compared with postnatal day 7 in noninfarcted hearts. CONCLUSIONS The neonatal porcine heart is capable of regeneration after AMI during the first 2 days of life. This phenomenon is associated with induction of cardiomyocyte proliferation and is lost when cardiomyocytes exit the cell cycle shortly after birth.
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Affiliation(s)
- Wuqiang Zhu
- Department of Biomedical Engineering, School of Medicine, and School of Engineering (W.Z., E.Z., M.Z., C.F., Y.T., J.D.H., A.V.B., G.P.W., G.Q., J.Z.), University of Alabama at Birmingham
| | - Eric Zhang
- Department of Biomedical Engineering, School of Medicine, and School of Engineering (W.Z., E.Z., M.Z., C.F., Y.T., J.D.H., A.V.B., G.P.W., G.Q., J.Z.), University of Alabama at Birmingham
| | - Meng Zhao
- Department of Biomedical Engineering, School of Medicine, and School of Engineering (W.Z., E.Z., M.Z., C.F., Y.T., J.D.H., A.V.B., G.P.W., G.Q., J.Z.), University of Alabama at Birmingham
| | - Zechen Chong
- Department of Genetics (Z.C.), University of Alabama at Birmingham
| | - Chengming Fan
- Department of Biomedical Engineering, School of Medicine, and School of Engineering (W.Z., E.Z., M.Z., C.F., Y.T., J.D.H., A.V.B., G.P.W., G.Q., J.Z.), University of Alabama at Birmingham
| | - Yawen Tang
- Department of Biomedical Engineering, School of Medicine, and School of Engineering (W.Z., E.Z., M.Z., C.F., Y.T., J.D.H., A.V.B., G.P.W., G.Q., J.Z.), University of Alabama at Birmingham
| | - Jervaughn D Hunter
- Department of Biomedical Engineering, School of Medicine, and School of Engineering (W.Z., E.Z., M.Z., C.F., Y.T., J.D.H., A.V.B., G.P.W., G.Q., J.Z.), University of Alabama at Birmingham
| | - Anton V Borovjagin
- Department of Biomedical Engineering, School of Medicine, and School of Engineering (W.Z., E.Z., M.Z., C.F., Y.T., J.D.H., A.V.B., G.P.W., G.Q., J.Z.), University of Alabama at Birmingham
| | - Gregory P Walcott
- Department of Biomedical Engineering, School of Medicine, and School of Engineering (W.Z., E.Z., M.Z., C.F., Y.T., J.D.H., A.V.B., G.P.W., G.Q., J.Z.), University of Alabama at Birmingham
| | - Jake Y Chen
- Informatics Institute (J.Y.C.), University of Alabama at Birmingham
| | - Gangjian Qin
- Department of Biomedical Engineering, School of Medicine, and School of Engineering (W.Z., E.Z., M.Z., C.F., Y.T., J.D.H., A.V.B., G.P.W., G.Q., J.Z.), University of Alabama at Birmingham
| | - Jianyi Zhang
- Department of Biomedical Engineering, School of Medicine, and School of Engineering (W.Z., E.Z., M.Z., C.F., Y.T., J.D.H., A.V.B., G.P.W., G.Q., J.Z.), University of Alabama at Birmingham
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Šínová R, Kudová J, Nešporová K, Karel S, Šuláková R, Velebný V, Kubala L. Opioid receptors and opioid peptides in the cardiomyogenesis of mouse embryonic stem cells. J Cell Physiol 2018; 234:13209-13219. [DOI: 10.1002/jcp.27992] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 11/21/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Romana Šínová
- Department of Free Radical Pathophysiology Institute of Biophysics, Academy of Sciences of the Czech Republic Brno Czech Republic
- Institute of Experimental Biology, Faculty of Science, Masaryk University Brno Czech Republic
- Contipro a. s. Dolni Dobrouc Czech Republic
| | - Jana Kudová
- Department of Free Radical Pathophysiology Institute of Biophysics, Academy of Sciences of the Czech Republic Brno Czech Republic
| | | | | | | | | | - Lukáš Kubala
- Department of Free Radical Pathophysiology Institute of Biophysics, Academy of Sciences of the Czech Republic Brno Czech Republic
- Institute of Experimental Biology, Faculty of Science, Masaryk University Brno Czech Republic
- International Clinical Research Center, St. Anne' University Hospital Brno Czech Republic
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Wodsedalek DJ, Paddock SJ, Wan TC, Auchampach JA, Kenarsary A, Tsaih SW, Flister MJ, O'Meara CC. IL-13 promotes in vivo neonatal cardiomyocyte cell cycle activity and heart regeneration. Am J Physiol Heart Circ Physiol 2018; 316:H24-H34. [PMID: 30339498 DOI: 10.1152/ajpheart.00521.2018] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
There is great interest in identifying signaling mechanisms by which cardiomyocytes (CMs) can enter the cell cycle and promote endogenous cardiac repair. We have previously demonstrated that IL-13 stimulated cell cycle activity of neonatal CMs in vitro. However, the signaling events that occur downstream of IL-13 in CMs and the role of IL-13 in CM proliferation and regeneration in vivo have not been explored. Here, we tested the role of IL-13 in promoting neonatal CM cell cycle activity and heart regeneration in vivo and investigated the signaling pathway(s) downstream of IL-13 specifically in CMs. Compared with control, CMs from neonatal IL-13 knockout (IL-13-/-) mice showed decreased proliferative markers and coincident upregulation of the hypertrophic marker brain natriuretic peptide ( Nppb) and increased CM nuclear size. After apical resection in anesthetized newborn mice, heart regeneration was significantly impaired in IL-13-/- mice compared with wild-type mice. Administration of recombinant IL-13 reversed these phenotypes by increasing CM proliferation markers and decreasing Nppb expression. RNA sequencing on primary neonatal CMs treated with IL-13 revealed activation of gene networks regulated by ERK1/2 and Akt. Western blot confirmed strong phosphorylation of ERK1/2 and Akt in both neonatal and adult cultured CMs in response to IL-13. Our data demonstrated a role for endogenous IL-13 in neonatal CM cell cycle and heart regeneration. ERK1/2 and Akt signaling are important pathways known to promote CM proliferation and protect against apoptosis, respectively; thus, targeting IL-13 transmembrane receptor signaling or administering recombinant IL-13 may be therapeutic approaches for activating proregenerative and survival pathways in the heart. NEW & NOTEWORTHY Here, we demonstrate, for the first time, that IL-13 is involved in neonatal cardiomyocyte cell cycle activity and heart regeneration in vivo. Prior work has shown that IL-13 promotes cardiomyocyte cell cycle activity in vitro; however, the signaling pathways were unknown. We used RNA sequencing to identify the signaling pathways activated downstream of IL-13 in cardiomyocytes and found that ERK1/2 and Akt signaling was activated in response to IL-13.
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Affiliation(s)
- Dylan J Wodsedalek
- Department of Physiology, Medical College of Wisconsin , Milwaukee, Wisconsin.,Cardiovascular Center, Medical College of Wisconsin , Milwaukee, Wisconsin.,Genomic Sciences and Precision Medicine Center, Medical College of Wisconsin , Milwaukee, Wisconsin
| | - Samantha J Paddock
- Department of Physiology, Medical College of Wisconsin , Milwaukee, Wisconsin.,Cardiovascular Center, Medical College of Wisconsin , Milwaukee, Wisconsin.,Genomic Sciences and Precision Medicine Center, Medical College of Wisconsin , Milwaukee, Wisconsin
| | - Tina C Wan
- Department of Pharmacology and Toxicology, Medical College of Wisconsin , Milwaukee, Wisconsin.,Cardiovascular Center, Medical College of Wisconsin , Milwaukee, Wisconsin
| | - John A Auchampach
- Department of Pharmacology and Toxicology, Medical College of Wisconsin , Milwaukee, Wisconsin.,Cardiovascular Center, Medical College of Wisconsin , Milwaukee, Wisconsin
| | - Aria Kenarsary
- Department of Cell Biology, Neurobiology, and Anatomy, Medical College of Wisconsin , Milwaukee, Wisconsin.,Cardiovascular Center, Medical College of Wisconsin , Milwaukee, Wisconsin.,Genomic Sciences and Precision Medicine Center, Medical College of Wisconsin , Milwaukee, Wisconsin
| | - Shirng-Wern Tsaih
- Department of Physiology, Medical College of Wisconsin , Milwaukee, Wisconsin.,Cardiovascular Center, Medical College of Wisconsin , Milwaukee, Wisconsin
| | - Michael J Flister
- Department of Physiology, Medical College of Wisconsin , Milwaukee, Wisconsin.,Department of Cell Biology, Neurobiology, and Anatomy, Medical College of Wisconsin , Milwaukee, Wisconsin.,Cardiovascular Center, Medical College of Wisconsin , Milwaukee, Wisconsin
| | - Caitlin C O'Meara
- Department of Physiology, Medical College of Wisconsin , Milwaukee, Wisconsin.,Department of Cell Biology, Neurobiology, and Anatomy, Medical College of Wisconsin , Milwaukee, Wisconsin.,Cardiovascular Center, Medical College of Wisconsin , Milwaukee, Wisconsin
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Gomez I, Duval V, Silvestre JS. Cardiomyocytes and Macrophages Discourse on the Method to Govern Cardiac Repair. Front Cardiovasc Med 2018; 5:134. [PMID: 30333983 PMCID: PMC6175999 DOI: 10.3389/fcvm.2018.00134] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 09/05/2018] [Indexed: 12/11/2022] Open
Abstract
In response to pathophysiological stress, the cardiac tissue undergoes profound remodeling process that incorporates the elimination of dying resident cells, compensatory hypertrophy of functional cardiomyocytes, growth and remodeling of the vascular compartment and formation of a fibrotic scar. Accumulating evidences indicate that cardiac remodeling is, at least in part, controlled by a complex crosstalk between cardiomyocytes and macrophages. The strategic location of abundant macrophages to the proximity of cardiomyocytes suggest that they could regulate the fate of cardiomyocytes in the injured heart. As such, macrophages appear as critical support cells for cardiomyocytes and play central roles in cardiac hypertrophy, fibrosis and remodeling. Notably, the cardiac tissue expands heterogeneous population of cardiac macrophages through local proliferation of resident macrophage as well as recruitment and differentiation of blood-derived monocytes. It has also been suggested that cardiac-resident macrophages display distinct functional properties from that of monocyte-derived macrophages in cardiac tissue. Furthermore, macrophages are an overflowing source of biological entities with non-canonical roles on cardiac conduction or cardiomyocyte proliferation by regulating action potential diffusion or cardiac cell cycle reentry. Alternatively, stressed cardiomyocytes can trigger the release of a broad repertoire of instructive signals that can regulate macrophage number, skew their phenotype and therefore direct their beneficial or deleterious actions. In this review, we highlight recent discoveries describing how the intricate dialogue between cardiomyocytes and macrophages can shape the deleterious or healing signaling mechanisms in the injured cardiac tissue.
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Affiliation(s)
- Ingrid Gomez
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMRS-970, Paris Centre de Recherche Cardiovasculaire, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Vincent Duval
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMRS-970, Paris Centre de Recherche Cardiovasculaire, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Jean-Sébastien Silvestre
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMRS-970, Paris Centre de Recherche Cardiovasculaire, Université Paris Descartes, Sorbonne Paris Cité, Paris, France
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Loss of long non-coding RNA CRRL promotes cardiomyocyte regeneration and improves cardiac repair by functioning as a competing endogenous RNA. J Mol Cell Cardiol 2018; 122:152-164. [PMID: 30125571 DOI: 10.1016/j.yjmcc.2018.08.013] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Revised: 08/13/2018] [Accepted: 08/14/2018] [Indexed: 02/08/2023]
Abstract
Long noncoding RNAs (lncRNAs) play critical roles in the development of myocardial hypertrophy and may stimulate endogenous myocardial regeneration to prevent heart failure after myocardial infarction (MI). However, whether lncRNAs are involved in regulating myocardial regeneration after MI remains unclear. The present study aimed to identify human-derived lncRNAs that are involved in endogenous cardiomyocyte (CM) regeneration. By analyzing publicly available RNA-seq data of human fetal and normal adult cardiac tissues, we identified a novel human-derived adult upregulated lncRNA designated cardiomyocyte regeneration-related lncRNA (CRRL). Bioinformatics analysis indicated that CRRL is involved in the negative regulation of CM proliferation. First, we observed that the loss of CRRL attenuates post-MI remodeling and preserves cardiac function in adult rats. Through loss-of-function approaches, we found that CRRL knockdown promotes neonatal rat CM proliferation both in vivo and in vitro. Furthermore, we demonstrated that CRRL acts as a competing endogenous RNA (ceRNA) by directly binding to miR-199a-3p and thereby increasing the expression of Hopx, a target gene of miR-199a-3p and a critical negative regulatory factor of CM proliferation. Thus, CRRL suppresses cardiomyocyte regeneration by directly binding to miR-199a-3p, indicating that loss of CRRL facilitates myocardial regeneration and may be a new potential therapeutic strategy for heart failure.
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Abstract
BACKGROUND The adult mammalian heart is incapable of meaningful functional recovery after injury, and thus promoting heart regeneration is 1 of the most important therapeutic targets in cardiovascular medicine. In contrast to the adult mammalian heart, the neonatal mammalian heart is capable of regeneration after various types of injury. Since the first report in 2011, a number of groups have reported their findings on neonatal heart regeneration. The current review provides a comprehensive analysis of heart regeneration studies in neonatal mammals conducted to date, outlines lessons learned, and poses unanswered questions. METHODS We performed a PubMed search using the keywords "neonatal" and "heart" and "regeneration." In addition, we assessed all publications that cited the first neonatal heart regeneration reports: Porrello et al, Science, Feb 2011 for apical resection injury; Porrello et al, PNAS, Dec 2012 for coronary ligation injury; and Mahmoud et al, Nature Methods, Jan 2014 for surgical methodology. Publications were examined for surgical models used, timing of surgery, and postinjury assessment including anatomic, histological, and functional assessment, as well as conclusions drawn. RESULTS We found 30 publications that performed neonatal apical resection, 19 publications that performed neonatal myocardial infarction by coronary artery ligation, and 6 publications that performed cryoinjury using liquid nitrogen-cooled metal probes. Both apical resection and ischemic infarction injury in neonatal mice result in a robust regenerative response, mediated by cardiomyocyte proliferation. On the other hand, several reports have demonstrated that cryoinjury is associated with incomplete heart regeneration in neonatal mice. Not surprisingly, several studies suggest that injury size, as well as surgical and histological techniques, can strongly influence the observed regenerative response and final conclusions. Studies have utilized these neonatal cardiac injury models to identify factors that either inhibit or stimulate heart regeneration. CONCLUSIONS Overall, there is consensus that both apical resection and coronary ligation injuries during the first 2 days of life result in heart regeneration in neonatal mammals, whereas cryoinjury was not associated with a similar regenerative response. This regenerative response is mediated by proliferation of preexisting cardiomyocytes, and is modifiable by injury size and surgical technique, as well as metabolic, immunologic, genetic, and environmental factors.
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Affiliation(s)
- Nicholas T Lam
- Department of Internal Medicine, Division of Cardiology (N.T.L and H.A.S.)
| | - Hesham A Sadek
- Department of Internal Medicine, Division of Cardiology (N.T.L and H.A.S.).,Hamon Center for Regenerative Science and Medicine (H.A.S.), University of Texas Southwestern Medical Center, Dallas
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King BL, Rosenstein MC, Smith AM, Dykeman CA, Smith GA, Yin VP. RegenDbase: a comparative database of noncoding RNA regulation of tissue regeneration circuits across multiple taxa. NPJ Regen Med 2018; 3:10. [PMID: 29872545 PMCID: PMC5973935 DOI: 10.1038/s41536-018-0049-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 04/17/2018] [Accepted: 05/04/2018] [Indexed: 12/16/2022] Open
Abstract
Regeneration is an endogenous process of tissue repair that culminates in complete restoration of tissue and organ function. While regenerative capacity in mammals is limited to select tissues, lower vertebrates like zebrafish and salamanders are endowed with the capacity to regenerate entire limbs and most adult tissues, including heart muscle. Numerous profiling studies have been conducted using these research models in an effort to identify the genetic circuits that accompany tissue regeneration. Most of these studies, however, are confined to an individual injury model and/or research organism and focused primarily on protein encoding transcripts. Here we describe RegenDbase, a new database with the functionality to compare and contrast gene regulatory pathways within and across tissues and research models. RegenDbase combines pipelines that integrate analysis of noncoding RNAs in combination with protein encoding transcripts. We created RegenDbase with a newly generated comprehensive dataset for adult zebrafish heart regeneration combined with existing microarray and RNA-sequencing studies on multiple injured tissues. In this current release, we detail microRNA-mRNA regulatory circuits and the biological processes these interactions control during the early stages of heart regeneration. Moreover, we identify known and putative novel lncRNAs and identify their potential target genes based on proximity searches. We postulate that these candidate factors underscore robust regenerative capacity in lower vertebrates. RegenDbase provides a systems-level analysis of tissue regeneration genetic circuits across injury and animal models and addresses the growing need to understand how noncoding RNAs influence these changes in gene expression.
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Affiliation(s)
- Benjamin L. King
- Kathryn Davis Center for Regenerative Biology and Medicine, Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04672 USA
- Department of Molecular and Biomedical Sciences, University of Maine, Orono, ME 04469 USA
- Graduate School of Biomedical Sciences and Engineering, University of Maine, Orono, ME 04469 USA
| | - Michael C. Rosenstein
- Kathryn Davis Center for Regenerative Biology and Medicine, Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04672 USA
- Present Address: RockStep Solutions, Portland, ME 04101 USA
| | - Ashley M. Smith
- Kathryn Davis Center for Regenerative Biology and Medicine, Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04672 USA
| | - Christina A. Dykeman
- Kathryn Davis Center for Regenerative Biology and Medicine, Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04672 USA
| | - Grace A. Smith
- Department of Molecular and Biomedical Sciences, University of Maine, Orono, ME 04469 USA
- University of Maine Honors College, University of Maine, Orono, ME 04469 USA
| | - Viravuth P. Yin
- Kathryn Davis Center for Regenerative Biology and Medicine, Mount Desert Island Biological Laboratory, Salisbury Cove, ME 04672 USA
- Graduate School of Biomedical Sciences and Engineering, University of Maine, Orono, ME 04469 USA
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Jadapalli JK, Halade GV. Unified nexus of macrophages and maresins in cardiac reparative mechanisms. FASEB J 2018; 32:5227-5237. [PMID: 29750575 DOI: 10.1096/fj.201800254r] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Macrophages are immune-sensing "big eater" phagocytic cells responsible for an innate, adaptive, and regenerative response. After myocardial infarction, macrophages predominantly clear the deceased cardiomyocyte apoptotic or necrotic neutrophils to develop a regenerative and reparative program with the activation of the lipoxygenase-mediated maresin (MaR) metabolome at the site of ischemic injury. The specialized proresolving molecule and macrophage mediator in resolving inflammation, MaR-1, produced by human macrophages, has potent defining effects that limit polymorphonuclear neutrophil infiltration, enhance uptake of apoptotic PMNs, regulate inflammation resolution and tissue regeneration, and reduce pain. In addition to proresolving and anti-inflammatory actions, MaR-1 displays potent tissue regenerative effects in stroke and is an antinociceptive. Macrophages actively participate in the biosynthesis of bioactive MaR-2, which exhibits anti-inflammatory, proresolving, and atherosclerotic effects. A new class of macrophage-derived molecules, MaR conjugates in tissue regeneration, is identified that regulates phagocytosis and the repair and regeneration of damaged tissue. The presented review provides a current summary of the effect of MaR in resolution pathophysiology, with relevance to a cardiac repair program.-Jadapalli, J. K., Halade, G. V. Unified nexus of macrophages and maresins in cardiac reparative mechanisms.
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Affiliation(s)
- Jeevan Kumar Jadapalli
- Division of Cardiovascular Disease, Department of Medicine, The University of Alabama, Birmingham, Alabama, USA
| | - Ganesh V Halade
- Division of Cardiovascular Disease, Department of Medicine, The University of Alabama, Birmingham, Alabama, USA
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González-Rosa JM, Sharpe M, Field D, Soonpaa MH, Field LJ, Burns CE, Burns CG. Myocardial Polyploidization Creates a Barrier to Heart Regeneration in Zebrafish. Dev Cell 2018; 44:433-446.e7. [PMID: 29486195 PMCID: PMC5830170 DOI: 10.1016/j.devcel.2018.01.021] [Citation(s) in RCA: 174] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 12/11/2017] [Accepted: 01/26/2018] [Indexed: 01/07/2023]
Abstract
Correlative evidence suggests that polyploidization of heart muscle, which occurs naturally in post-natal mammals, creates a barrier to heart regeneration. Here, we move beyond a correlation by demonstrating that experimental polyploidization of zebrafish cardiomyocytes is sufficient to suppress their proliferative potential during regeneration. Initially, we determined that zebrafish myocardium becomes susceptible to polyploidization upon transient cytokinesis inhibition mediated by dominant-negative Ect2. Using a transgenic strategy, we generated adult animals containing mosaic hearts composed of differentially labeled diploid and polyploid-enriched cardiomyocyte populations. Diploid cardiomyocytes outcompeted their polyploid neighbors in producing regenerated heart muscle. Moreover, hearts composed of equivalent proportions of diploid and polyploid cardiomyocytes failed to regenerate altogether, demonstrating that a critical percentage of diploid cardiomyocytes is required to achieve heart regeneration. Our data identify cardiomyocyte polyploidization as a barrier to heart regeneration and suggest that mobilizing rare diploid cardiomyocytes in the human heart will improve its regenerative capacity.
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Affiliation(s)
- Juan Manuel González-Rosa
- Cardiovascular Research Center, Massachusetts General Hospital, Charlestown, MA 02129, USA; Harvard Medical School, Boston, MA 02115, USA
| | - Michka Sharpe
- Cardiovascular Research Center, Massachusetts General Hospital, Charlestown, MA 02129, USA; Harvard Medical School, Boston, MA 02115, USA
| | - Dorothy Field
- The Krannert Institute of Cardiology, the Wells Center for Pediatric Research, and Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Mark H Soonpaa
- The Krannert Institute of Cardiology, the Wells Center for Pediatric Research, and Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Loren J Field
- The Krannert Institute of Cardiology, the Wells Center for Pediatric Research, and Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Caroline E Burns
- Cardiovascular Research Center, Massachusetts General Hospital, Charlestown, MA 02129, USA; Harvard Medical School, Boston, MA 02115, USA; Harvard Stem Cell Institute, Cambridge, MA 02138, USA.
| | - C Geoffrey Burns
- Cardiovascular Research Center, Massachusetts General Hospital, Charlestown, MA 02129, USA; Harvard Medical School, Boston, MA 02115, USA.
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Ahmed A, Wang T, Delgado-Olguin P. Ezh2 is not required for cardiac regeneration in neonatal mice. PLoS One 2018; 13:e0192238. [PMID: 29466371 PMCID: PMC5821314 DOI: 10.1371/journal.pone.0192238] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 01/18/2018] [Indexed: 12/22/2022] Open
Abstract
The neonatal mouse heart has the remarkable capacity to regenerate lost myocardium within the first week of life. Neonatal cardiomyocytes re-express fetal genes that control cell proliferation after injury to promote regeneration. The loss of regenerative capacity of the heart one week after birth coincides with repression of a fetal transcriptional program coordinated by epigenetic regulators. The histone methyltransferase enhancer of zeste homolog 2 (Ezh2) is a repressor of fetal cardiac transcriptional programs and suppresses cardiomyocyte cell proliferation, suggesting a potential function in heart regeneration. However, it was recently demonstrated that Ezh2 is dispensable for heart regeneration in the neonatal heart. Here, we provide evidence supporting this finding and demonstrate that Ezh2 deficiency does not affect regeneration of the neonatal heart. We inactivated Ezh2 in differentiating embryonic cardiomyocytes, which led to depletion of histone H3 trimethylated at lysine 27 (H3K27me3). Ezh2 deficiency in cardiomyocytes did not affect clearance of the fibrotic scar in myocardial infarction (MI) and apical resection models of cardiac injury at post-natal day 1 (P1). Similarly, cardiomyocyte-specific loss of Ezh2 did not affect fibrotic scar size after MI or apical resection at P7, suggesting that it does not extend the regenerative time window. Our results demonstrate that Ezh2 is not required for innate neonatal cardiac regeneration.
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Affiliation(s)
- Abdalla Ahmed
- Translational Medicine, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Tao Wang
- Translational Medicine, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
- Human Biology Program, University of Toronto, Toronto, Ontario, Canada
| | - Paul Delgado-Olguin
- Translational Medicine, The Hospital for Sick Children, Toronto, ON, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
- Heart & Stroke Richard Lewar Centre of Excellence, Toronto, ON, Canada
- * E-mail:
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77
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Adamowicz M, Morgan CC, Haubner BJ, Noseda M, Collins MJ, Abreu Paiva M, Srivastava PK, Gellert P, Razzaghi B, O’Gara P, Raina P, Game L, Bottolo L, Schneider MD, Harding SE, Penninger J, Aitman TJ. Functionally Conserved Noncoding Regulators of Cardiomyocyte Proliferation and Regeneration in Mouse and Human. CIRCULATION-GENOMIC AND PRECISION MEDICINE 2018; 11:e001805. [DOI: 10.1161/circgen.117.001805] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
The adult mammalian heart has little regenerative capacity after myocardial infarction (MI), whereas neonatal mouse heart regenerates without scarring or dysfunction. However, the underlying pathways are poorly defined. We sought to derive insights into the pathways regulating neonatal development of the mouse heart and cardiac regeneration post-MI.
Methods and Results:
Total RNA-seq of mouse heart through the first 10 days of postnatal life (referred to as P3, P5, P10) revealed a previously unobserved transition in microRNA (miRNA) expression between P3 and P5 associated specifically with altered expression of protein-coding genes on the focal adhesion pathway and cessation of cardiomyocyte cell division. We found profound changes in the coding and noncoding transcriptome after neonatal MI, with evidence of essentially complete healing by P10. Over two-thirds of each of the messenger RNAs, long noncoding RNAs, and miRNAs that were differentially expressed in the post-MI heart were differentially expressed during normal postnatal development, suggesting a common regulatory pathway for normal cardiac development and post-MI cardiac regeneration. We selected exemplars of miRNAs implicated in our data set as regulators of cardiomyocyte proliferation. Several of these showed evidence of a functional influence on mouse cardiomyocyte cell division. In addition, a subset of these miRNAs, miR-144-3p, miR-195a-5p, miR-451a, and miR-6240 showed evidence of functional conservation in human cardiomyocytes.
Conclusions:
The sets of messenger RNAs, miRNAs, and long noncoding RNAs that we report here merit further investigation as gatekeepers of cell division in the postnatal heart and as targets for extension of the period of cardiac regeneration beyond the neonatal period.
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Affiliation(s)
- Martyna Adamowicz
- From the Centre for Genomic and Experimental Medicine, Institute of Genetics and Molecular Medicine, University of Edinburgh, Scotland, United Kingdom (T.J.A.); National Heart and Lung Institute (M.A., C.C.M., M.N., M.A.P., P.O., M.D.S., S.E.H.), Department of Medicine (C.C.M., M.J.C., P.K.S., B.R., P.R., T.J.A.), Department of Mathematics (L.B.), Imperial College London, United Kingdom; IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria (B.J.H., J.P.)
| | - Claire C. Morgan
- From the Centre for Genomic and Experimental Medicine, Institute of Genetics and Molecular Medicine, University of Edinburgh, Scotland, United Kingdom (T.J.A.); National Heart and Lung Institute (M.A., C.C.M., M.N., M.A.P., P.O., M.D.S., S.E.H.), Department of Medicine (C.C.M., M.J.C., P.K.S., B.R., P.R., T.J.A.), Department of Mathematics (L.B.), Imperial College London, United Kingdom; IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria (B.J.H., J.P.)
| | - Bernhard J. Haubner
- From the Centre for Genomic and Experimental Medicine, Institute of Genetics and Molecular Medicine, University of Edinburgh, Scotland, United Kingdom (T.J.A.); National Heart and Lung Institute (M.A., C.C.M., M.N., M.A.P., P.O., M.D.S., S.E.H.), Department of Medicine (C.C.M., M.J.C., P.K.S., B.R., P.R., T.J.A.), Department of Mathematics (L.B.), Imperial College London, United Kingdom; IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria (B.J.H., J.P.)
| | - Michela Noseda
- From the Centre for Genomic and Experimental Medicine, Institute of Genetics and Molecular Medicine, University of Edinburgh, Scotland, United Kingdom (T.J.A.); National Heart and Lung Institute (M.A., C.C.M., M.N., M.A.P., P.O., M.D.S., S.E.H.), Department of Medicine (C.C.M., M.J.C., P.K.S., B.R., P.R., T.J.A.), Department of Mathematics (L.B.), Imperial College London, United Kingdom; IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria (B.J.H., J.P.)
| | - Melissa J. Collins
- From the Centre for Genomic and Experimental Medicine, Institute of Genetics and Molecular Medicine, University of Edinburgh, Scotland, United Kingdom (T.J.A.); National Heart and Lung Institute (M.A., C.C.M., M.N., M.A.P., P.O., M.D.S., S.E.H.), Department of Medicine (C.C.M., M.J.C., P.K.S., B.R., P.R., T.J.A.), Department of Mathematics (L.B.), Imperial College London, United Kingdom; IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria (B.J.H., J.P.)
| | - Marta Abreu Paiva
- From the Centre for Genomic and Experimental Medicine, Institute of Genetics and Molecular Medicine, University of Edinburgh, Scotland, United Kingdom (T.J.A.); National Heart and Lung Institute (M.A., C.C.M., M.N., M.A.P., P.O., M.D.S., S.E.H.), Department of Medicine (C.C.M., M.J.C., P.K.S., B.R., P.R., T.J.A.), Department of Mathematics (L.B.), Imperial College London, United Kingdom; IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria (B.J.H., J.P.)
| | - Prashant K. Srivastava
- From the Centre for Genomic and Experimental Medicine, Institute of Genetics and Molecular Medicine, University of Edinburgh, Scotland, United Kingdom (T.J.A.); National Heart and Lung Institute (M.A., C.C.M., M.N., M.A.P., P.O., M.D.S., S.E.H.), Department of Medicine (C.C.M., M.J.C., P.K.S., B.R., P.R., T.J.A.), Department of Mathematics (L.B.), Imperial College London, United Kingdom; IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria (B.J.H., J.P.)
| | - Pascal Gellert
- From the Centre for Genomic and Experimental Medicine, Institute of Genetics and Molecular Medicine, University of Edinburgh, Scotland, United Kingdom (T.J.A.); National Heart and Lung Institute (M.A., C.C.M., M.N., M.A.P., P.O., M.D.S., S.E.H.), Department of Medicine (C.C.M., M.J.C., P.K.S., B.R., P.R., T.J.A.), Department of Mathematics (L.B.), Imperial College London, United Kingdom; IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria (B.J.H., J.P.)
| | - Bonnie Razzaghi
- From the Centre for Genomic and Experimental Medicine, Institute of Genetics and Molecular Medicine, University of Edinburgh, Scotland, United Kingdom (T.J.A.); National Heart and Lung Institute (M.A., C.C.M., M.N., M.A.P., P.O., M.D.S., S.E.H.), Department of Medicine (C.C.M., M.J.C., P.K.S., B.R., P.R., T.J.A.), Department of Mathematics (L.B.), Imperial College London, United Kingdom; IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria (B.J.H., J.P.)
| | - Peter O’Gara
- From the Centre for Genomic and Experimental Medicine, Institute of Genetics and Molecular Medicine, University of Edinburgh, Scotland, United Kingdom (T.J.A.); National Heart and Lung Institute (M.A., C.C.M., M.N., M.A.P., P.O., M.D.S., S.E.H.), Department of Medicine (C.C.M., M.J.C., P.K.S., B.R., P.R., T.J.A.), Department of Mathematics (L.B.), Imperial College London, United Kingdom; IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria (B.J.H., J.P.)
| | - Priyanka Raina
- From the Centre for Genomic and Experimental Medicine, Institute of Genetics and Molecular Medicine, University of Edinburgh, Scotland, United Kingdom (T.J.A.); National Heart and Lung Institute (M.A., C.C.M., M.N., M.A.P., P.O., M.D.S., S.E.H.), Department of Medicine (C.C.M., M.J.C., P.K.S., B.R., P.R., T.J.A.), Department of Mathematics (L.B.), Imperial College London, United Kingdom; IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria (B.J.H., J.P.)
| | - Laurence Game
- From the Centre for Genomic and Experimental Medicine, Institute of Genetics and Molecular Medicine, University of Edinburgh, Scotland, United Kingdom (T.J.A.); National Heart and Lung Institute (M.A., C.C.M., M.N., M.A.P., P.O., M.D.S., S.E.H.), Department of Medicine (C.C.M., M.J.C., P.K.S., B.R., P.R., T.J.A.), Department of Mathematics (L.B.), Imperial College London, United Kingdom; IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria (B.J.H., J.P.)
| | - Leonardo Bottolo
- From the Centre for Genomic and Experimental Medicine, Institute of Genetics and Molecular Medicine, University of Edinburgh, Scotland, United Kingdom (T.J.A.); National Heart and Lung Institute (M.A., C.C.M., M.N., M.A.P., P.O., M.D.S., S.E.H.), Department of Medicine (C.C.M., M.J.C., P.K.S., B.R., P.R., T.J.A.), Department of Mathematics (L.B.), Imperial College London, United Kingdom; IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria (B.J.H., J.P.)
| | - Michael D. Schneider
- From the Centre for Genomic and Experimental Medicine, Institute of Genetics and Molecular Medicine, University of Edinburgh, Scotland, United Kingdom (T.J.A.); National Heart and Lung Institute (M.A., C.C.M., M.N., M.A.P., P.O., M.D.S., S.E.H.), Department of Medicine (C.C.M., M.J.C., P.K.S., B.R., P.R., T.J.A.), Department of Mathematics (L.B.), Imperial College London, United Kingdom; IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria (B.J.H., J.P.)
| | - Sian E. Harding
- From the Centre for Genomic and Experimental Medicine, Institute of Genetics and Molecular Medicine, University of Edinburgh, Scotland, United Kingdom (T.J.A.); National Heart and Lung Institute (M.A., C.C.M., M.N., M.A.P., P.O., M.D.S., S.E.H.), Department of Medicine (C.C.M., M.J.C., P.K.S., B.R., P.R., T.J.A.), Department of Mathematics (L.B.), Imperial College London, United Kingdom; IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria (B.J.H., J.P.)
| | - Josef Penninger
- From the Centre for Genomic and Experimental Medicine, Institute of Genetics and Molecular Medicine, University of Edinburgh, Scotland, United Kingdom (T.J.A.); National Heart and Lung Institute (M.A., C.C.M., M.N., M.A.P., P.O., M.D.S., S.E.H.), Department of Medicine (C.C.M., M.J.C., P.K.S., B.R., P.R., T.J.A.), Department of Mathematics (L.B.), Imperial College London, United Kingdom; IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria (B.J.H., J.P.)
| | - Timothy J. Aitman
- From the Centre for Genomic and Experimental Medicine, Institute of Genetics and Molecular Medicine, University of Edinburgh, Scotland, United Kingdom (T.J.A.); National Heart and Lung Institute (M.A., C.C.M., M.N., M.A.P., P.O., M.D.S., S.E.H.), Department of Medicine (C.C.M., M.J.C., P.K.S., B.R., P.R., T.J.A.), Department of Mathematics (L.B.), Imperial College London, United Kingdom; IMBA, Institute of Molecular Biotechnology of the Austrian Academy of Sciences, Vienna, Austria (B.J.H., J.P.)
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78
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Wang Q, Chen Z, Huang X, Chen L, Chen B, Zhu Y, Cao S, Liao W, Bin J, Kitakaze M, Liao Y. Olmesartan attenuates pressure-overload- or post-infarction-induced cardiac remodeling in mice. Oncotarget 2017; 9:24601-24618. [PMID: 29872491 PMCID: PMC5973849 DOI: 10.18632/oncotarget.23628] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 12/11/2017] [Indexed: 01/10/2023] Open
Abstract
Either angiotensin converting enzyme inhibitor (ACEI) or angiotensin receptor 1 blocker (ARB) attenuates cardiac remodeling. However, the overall molecular modulation of the reversing remodeling process in response to the ACEI or ARB treatment is not yet well determined. In this study, we examined whether gene expressions are modulated by ACEI (temocapril), ARB (olmesartan) or both in a murine model with transverse aortic constriction (TAC) and confirm whether periostin is a target gene of olmesartan in mice with myocardial infarction (MI). We detected 109 genes that were significantly up-regulated in TAC mice and a majority of these were down-regulated in response to temocapril, olmesartan or their combination which significantly attenuated cardiac remodeling at one or four weeks. Real-time RT-PCR demonstrated that olmesartan, temocapril or their combination down-regulated the expression of periostin. In MI mice treated with olmesartan for 4 weeks, the left ventricular end-diastolic and systolic dimensions measured with echocardiography were lower, whereas maximum rate of rise and fall rate of LV pressure (±dp/dt max) were greater, and Azan-staining cardiac fibrotic area was smaller. Furthermore, periostin was upregulated in response to MI, whereas olmesartan blocked this upregulation. Post-MI fibrosis was smaller in periostin knockout adult mice than in wildtype mice, while glycogen synthase kinase 3β was increased and cyclin D1 was decreased in periostin knockout mice. These findings indicate that periostin is a target gene of ARB and olmesartan reverses cardiac remodeling at least partially through the downregulation of periostin.
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Affiliation(s)
- Qiancheng Wang
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.,Department of Cardiology, Jiaozuo People's Hospital of Henan Province, Jiaozuo 454000, China
| | - Zhenhuan Chen
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Xiaobo Huang
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Lin Chen
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Baihe Chen
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Yingqi Zhu
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Shiping Cao
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Wangjun Liao
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Jianping Bin
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Masafumi Kitakaze
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.,Cardiovascular Division of the Department of Medicine, National Cerebral and Cardiovascular Center, Suita, Osaka 565-8565, Japan
| | - Yulin Liao
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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79
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Strange K. Drug Discovery in Fish, Flies, and Worms. ILAR J 2017; 57:133-143. [PMID: 28053067 DOI: 10.1093/ilar/ilw034] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 10/21/2016] [Indexed: 12/22/2022] Open
Abstract
Nonmammalian model organisms such as the nematode Caenorhabditis elegans, the fruit fly Drosophila melanogaster, and the zebrafish Danio rerio provide numerous experimental advantages for drug discovery including genetic and molecular tractability, amenability to high-throughput screening methods and reduced experimental costs and increased experimental throughput compared to traditional mammalian models. An interdisciplinary approach that strategically combines the study of nonmammalian and mammalian animal models with diverse experimental tools has and will continue to provide deep molecular and genetic understanding of human disease and will significantly enhance the discovery and application of new therapies to treat those diseases. This review will provide an overview of C. elegans, Drosophila, and zebrafish biology and husbandry and will discuss how these models are being used for phenotype-based drug screening and for identification of drug targets and mechanisms of action. The review will also describe how these and other nonmammalian model organisms are uniquely suited for the discovery of drug-based regenerative medicine therapies.
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Affiliation(s)
- Kevin Strange
- Kevin Strange, Ph.D., is President and CEO of the MDI Biological Laboratory and CEO of Novo Biosciences, Inc
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80
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Hudson JE, Porrello ER. FunSel: Mesenchymal Stromal Cells Stay for the Party. Circulation 2017; 136:1525-1527. [PMID: 29038207 DOI: 10.1161/circulationaha.117.030795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- James E Hudson
- From School of Biomedical Sciences, University of Queensland, Brisbane, Australia (J.E.H.); Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, Australia (E.R.P.); and Department of Physiology, School of Biomedical Sciences, University of Melbourne, Parkville, Australia (E.R.P.).
| | - Enzo R Porrello
- From School of Biomedical Sciences, University of Queensland, Brisbane, Australia (J.E.H.); Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, Australia (E.R.P.); and Department of Physiology, School of Biomedical Sciences, University of Melbourne, Parkville, Australia (E.R.P.).
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81
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Malek Mohammadi M, Kattih B, Grund A, Froese N, Korf-Klingebiel M, Gigina A, Schrameck U, Rudat C, Liang Q, Kispert A, Wollert KC, Bauersachs J, Heineke J. The transcription factor GATA4 promotes myocardial regeneration in neonatal mice. EMBO Mol Med 2017; 9:265-279. [PMID: 28053183 PMCID: PMC5286367 DOI: 10.15252/emmm.201606602] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Heart failure is often the consequence of insufficient cardiac regeneration. Neonatal mice retain a certain capability of myocardial regeneration until postnatal day (P)7, although the underlying transcriptional mechanisms remain largely unknown. We demonstrate here that cardiac abundance of the transcription factor GATA4 was high at P1, but became strongly reduced at P7 in parallel with loss of regenerative capacity. Reconstitution of cardiac GATA4 levels by adenoviral gene transfer markedly improved cardiac regeneration after cryoinjury at P7. In contrast, the myocardial scar was larger in cardiomyocyte‐specific Gata4 knockout (CM‐G4‐KO) mice after cryoinjury at P0, indicative of impaired regeneration, which was accompanied by reduced cardiomyocyte proliferation and reduced myocardial angiogenesis in CM‐G4‐KO mice. Cardiomyocyte proliferation was also diminished in cardiac explants from CM‐G4‐KO mice and in isolated cardiomyocytes with reduced GATA4 expression. Mechanistically, decreased GATA4 levels caused the downregulation of several pro‐regenerative genes (among them interleukin‐13, Il13) in the myocardium. Interestingly, systemic administration of IL‐13 rescued defective heart regeneration in CM‐G4‐KO mice and could be evaluated as therapeutic strategy in the future.
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Affiliation(s)
- Mona Malek Mohammadi
- Klinik für Kardiologie und Angiologie, Medizinische Hochschule Hannover, Hannover, Germany
| | - Badder Kattih
- Klinik für Kardiologie und Angiologie, Medizinische Hochschule Hannover, Hannover, Germany
| | - Andrea Grund
- Klinik für Kardiologie und Angiologie, Medizinische Hochschule Hannover, Hannover, Germany
| | - Natali Froese
- Klinik für Kardiologie und Angiologie, Medizinische Hochschule Hannover, Hannover, Germany
| | | | - Anna Gigina
- Klinik für Kardiologie und Angiologie, Medizinische Hochschule Hannover, Hannover, Germany
| | - Ulrike Schrameck
- Klinik für Kardiologie und Angiologie, Medizinische Hochschule Hannover, Hannover, Germany
| | - Carsten Rudat
- Institut für Molekularbiologie, Medizinische Hochschule Hannover, Hannover, Germany
| | - Qiangrong Liang
- Department of Biomedical Sciences, New York Institute of Technology College of Osteopathic Medicine, Old Westbury, NY, USA
| | - Andreas Kispert
- Institut für Molekularbiologie, Medizinische Hochschule Hannover, Hannover, Germany.,Cluster of Excellence REBIRTH, Medizinische Hochschule Hannover, Hannover, Germany
| | - Kai C Wollert
- Klinik für Kardiologie und Angiologie, Medizinische Hochschule Hannover, Hannover, Germany.,Cluster of Excellence REBIRTH, Medizinische Hochschule Hannover, Hannover, Germany
| | - Johann Bauersachs
- Klinik für Kardiologie und Angiologie, Medizinische Hochschule Hannover, Hannover, Germany.,Cluster of Excellence REBIRTH, Medizinische Hochschule Hannover, Hannover, Germany
| | - Joerg Heineke
- Klinik für Kardiologie und Angiologie, Medizinische Hochschule Hannover, Hannover, Germany .,Cluster of Excellence REBIRTH, Medizinische Hochschule Hannover, Hannover, Germany
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82
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Quaife-Ryan GA, Sim CB, Ziemann M, Kaspi A, Rafehi H, Ramialison M, El-Osta A, Hudson JE, Porrello ER. Multicellular Transcriptional Analysis of Mammalian Heart Regeneration. Circulation 2017; 136:1123-1139. [PMID: 28733351 PMCID: PMC5598916 DOI: 10.1161/circulationaha.117.028252] [Citation(s) in RCA: 185] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 06/27/2017] [Indexed: 11/16/2022]
Abstract
BACKGROUND The inability of the adult mammalian heart to regenerate following injury represents a major barrier in cardiovascular medicine. In contrast, the neonatal mammalian heart retains a transient capacity for regeneration, which is lost shortly after birth. Defining the molecular mechanisms that govern regenerative capacity in the neonatal period remains a central goal in cardiac biology. Here, we assemble a transcriptomic framework of multiple cardiac cell populations during postnatal development and following injury, which enables comparative analyses of the regenerative (neonatal) versus nonregenerative (adult) state for the first time. METHODS Cardiomyocytes, fibroblasts, leukocytes, and endothelial cells from infarcted and noninfarcted neonatal (P1) and adult (P56) mouse hearts were isolated by enzymatic dissociation and fluorescence-activated cell sorting at day 3 following surgery. RNA sequencing was performed on these cell populations to generate the transcriptome of the major cardiac cell populations during cardiac development, repair, and regeneration. To complement our transcriptomic data, we also surveyed the epigenetic landscape of cardiomyocytes during postnatal maturation by performing deep sequencing of accessible chromatin regions by using the Assay for Transposase-Accessible Chromatin from purified mouse cardiomyocyte nuclei (P1, P14, and P56). RESULTS Profiling of cardiomyocyte and nonmyocyte transcriptional programs uncovered several injury-responsive genes across regenerative and nonregenerative time points. However, the majority of transcriptional changes in all cardiac cell types resulted from developmental maturation from neonatal stages to adulthood rather than activation of a distinct regeneration-specific gene program. Furthermore, adult leukocytes and fibroblasts were characterized by the expression of a proliferative gene expression network following infarction, which mirrored the neonatal state. In contrast, cardiomyocytes failed to reactivate the neonatal proliferative network following infarction, which was associated with loss of chromatin accessibility around cell cycle genes during postnatal maturation. CONCLUSIONS This work provides a comprehensive framework and transcriptional resource of multiple cardiac cell populations during cardiac development, repair, and regeneration. Our findings define a regulatory program underpinning the neonatal regenerative state and identify alterations in the chromatin landscape that could limit reinduction of the regenerative program in adult cardiomyocytes.
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Affiliation(s)
- Gregory A Quaife-Ryan
- From School of Biomedical Sciences, University of Queensland, Brisbane, Australia (G.A.Q.-R., C.B.S., J.E.H., E.R.P.); Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia (M.Z., A.K., H.R., A.E.-O.); Central Clinical School, Monash University, Melbourne, Victoria, Australia (M.Z., A.K., H.R., A.E.-O.); Australian Regenerative Medicine Institute, EMBL-Australia Collaborating Group, Systems Biology Institute Australia, Monash University, Melbourne, Victoria (M.R.); Hong Kong Institute of Diabetes and Obesity, Prince of Wales Hospital, Chinese University of Hong Kong (A.E.-O.); Murdoch Childrens Research Institute, Royal Children's Hospital, Melbourne, Victoria, Australia (E.R.P.); and Department of Physiology, School of Biomedical Sciences, University of Melbourne, Victoria, Australia (E.R.P.)
| | - Choon Boon Sim
- From School of Biomedical Sciences, University of Queensland, Brisbane, Australia (G.A.Q.-R., C.B.S., J.E.H., E.R.P.); Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia (M.Z., A.K., H.R., A.E.-O.); Central Clinical School, Monash University, Melbourne, Victoria, Australia (M.Z., A.K., H.R., A.E.-O.); Australian Regenerative Medicine Institute, EMBL-Australia Collaborating Group, Systems Biology Institute Australia, Monash University, Melbourne, Victoria (M.R.); Hong Kong Institute of Diabetes and Obesity, Prince of Wales Hospital, Chinese University of Hong Kong (A.E.-O.); Murdoch Childrens Research Institute, Royal Children's Hospital, Melbourne, Victoria, Australia (E.R.P.); and Department of Physiology, School of Biomedical Sciences, University of Melbourne, Victoria, Australia (E.R.P.)
| | - Mark Ziemann
- From School of Biomedical Sciences, University of Queensland, Brisbane, Australia (G.A.Q.-R., C.B.S., J.E.H., E.R.P.); Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia (M.Z., A.K., H.R., A.E.-O.); Central Clinical School, Monash University, Melbourne, Victoria, Australia (M.Z., A.K., H.R., A.E.-O.); Australian Regenerative Medicine Institute, EMBL-Australia Collaborating Group, Systems Biology Institute Australia, Monash University, Melbourne, Victoria (M.R.); Hong Kong Institute of Diabetes and Obesity, Prince of Wales Hospital, Chinese University of Hong Kong (A.E.-O.); Murdoch Childrens Research Institute, Royal Children's Hospital, Melbourne, Victoria, Australia (E.R.P.); and Department of Physiology, School of Biomedical Sciences, University of Melbourne, Victoria, Australia (E.R.P.)
| | - Antony Kaspi
- From School of Biomedical Sciences, University of Queensland, Brisbane, Australia (G.A.Q.-R., C.B.S., J.E.H., E.R.P.); Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia (M.Z., A.K., H.R., A.E.-O.); Central Clinical School, Monash University, Melbourne, Victoria, Australia (M.Z., A.K., H.R., A.E.-O.); Australian Regenerative Medicine Institute, EMBL-Australia Collaborating Group, Systems Biology Institute Australia, Monash University, Melbourne, Victoria (M.R.); Hong Kong Institute of Diabetes and Obesity, Prince of Wales Hospital, Chinese University of Hong Kong (A.E.-O.); Murdoch Childrens Research Institute, Royal Children's Hospital, Melbourne, Victoria, Australia (E.R.P.); and Department of Physiology, School of Biomedical Sciences, University of Melbourne, Victoria, Australia (E.R.P.)
| | - Haloom Rafehi
- From School of Biomedical Sciences, University of Queensland, Brisbane, Australia (G.A.Q.-R., C.B.S., J.E.H., E.R.P.); Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia (M.Z., A.K., H.R., A.E.-O.); Central Clinical School, Monash University, Melbourne, Victoria, Australia (M.Z., A.K., H.R., A.E.-O.); Australian Regenerative Medicine Institute, EMBL-Australia Collaborating Group, Systems Biology Institute Australia, Monash University, Melbourne, Victoria (M.R.); Hong Kong Institute of Diabetes and Obesity, Prince of Wales Hospital, Chinese University of Hong Kong (A.E.-O.); Murdoch Childrens Research Institute, Royal Children's Hospital, Melbourne, Victoria, Australia (E.R.P.); and Department of Physiology, School of Biomedical Sciences, University of Melbourne, Victoria, Australia (E.R.P.)
| | - Mirana Ramialison
- From School of Biomedical Sciences, University of Queensland, Brisbane, Australia (G.A.Q.-R., C.B.S., J.E.H., E.R.P.); Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia (M.Z., A.K., H.R., A.E.-O.); Central Clinical School, Monash University, Melbourne, Victoria, Australia (M.Z., A.K., H.R., A.E.-O.); Australian Regenerative Medicine Institute, EMBL-Australia Collaborating Group, Systems Biology Institute Australia, Monash University, Melbourne, Victoria (M.R.); Hong Kong Institute of Diabetes and Obesity, Prince of Wales Hospital, Chinese University of Hong Kong (A.E.-O.); Murdoch Childrens Research Institute, Royal Children's Hospital, Melbourne, Victoria, Australia (E.R.P.); and Department of Physiology, School of Biomedical Sciences, University of Melbourne, Victoria, Australia (E.R.P.)
| | - Assam El-Osta
- From School of Biomedical Sciences, University of Queensland, Brisbane, Australia (G.A.Q.-R., C.B.S., J.E.H., E.R.P.); Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia (M.Z., A.K., H.R., A.E.-O.); Central Clinical School, Monash University, Melbourne, Victoria, Australia (M.Z., A.K., H.R., A.E.-O.); Australian Regenerative Medicine Institute, EMBL-Australia Collaborating Group, Systems Biology Institute Australia, Monash University, Melbourne, Victoria (M.R.); Hong Kong Institute of Diabetes and Obesity, Prince of Wales Hospital, Chinese University of Hong Kong (A.E.-O.); Murdoch Childrens Research Institute, Royal Children's Hospital, Melbourne, Victoria, Australia (E.R.P.); and Department of Physiology, School of Biomedical Sciences, University of Melbourne, Victoria, Australia (E.R.P.)
| | - James E Hudson
- From School of Biomedical Sciences, University of Queensland, Brisbane, Australia (G.A.Q.-R., C.B.S., J.E.H., E.R.P.); Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia (M.Z., A.K., H.R., A.E.-O.); Central Clinical School, Monash University, Melbourne, Victoria, Australia (M.Z., A.K., H.R., A.E.-O.); Australian Regenerative Medicine Institute, EMBL-Australia Collaborating Group, Systems Biology Institute Australia, Monash University, Melbourne, Victoria (M.R.); Hong Kong Institute of Diabetes and Obesity, Prince of Wales Hospital, Chinese University of Hong Kong (A.E.-O.); Murdoch Childrens Research Institute, Royal Children's Hospital, Melbourne, Victoria, Australia (E.R.P.); and Department of Physiology, School of Biomedical Sciences, University of Melbourne, Victoria, Australia (E.R.P.).
| | - Enzo R Porrello
- From School of Biomedical Sciences, University of Queensland, Brisbane, Australia (G.A.Q.-R., C.B.S., J.E.H., E.R.P.); Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia (M.Z., A.K., H.R., A.E.-O.); Central Clinical School, Monash University, Melbourne, Victoria, Australia (M.Z., A.K., H.R., A.E.-O.); Australian Regenerative Medicine Institute, EMBL-Australia Collaborating Group, Systems Biology Institute Australia, Monash University, Melbourne, Victoria (M.R.); Hong Kong Institute of Diabetes and Obesity, Prince of Wales Hospital, Chinese University of Hong Kong (A.E.-O.); Murdoch Childrens Research Institute, Royal Children's Hospital, Melbourne, Victoria, Australia (E.R.P.); and Department of Physiology, School of Biomedical Sciences, University of Melbourne, Victoria, Australia (E.R.P.).
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83
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Abstract
The underlying cause of systolic heart failure is the inability of the adult mammalian heart to regenerate damaged myocardium. In contrast, some vertebrate species and immature mammals are capable of full cardiac regeneration following multiple types of injury through cardiomyocyte proliferation. Little is known about what distinguishes proliferative cardiomyocytes from terminally differentiated, nonproliferative cardiomyocytes. Recently, several reports have suggested that oxygen metabolism and oxidative stress play a pivotal role in regulating the proliferative capacity of mammalian cardiomyocytes. Moreover, reducing oxygen metabolism in the adult mammalian heart can induce cardiomyocyte cell cycle reentry through blunting oxidative damage, which is sufficient for functional improvement following myocardial infarction. Here we concisely summarize recent findings that highlight the role of oxygen metabolism and oxidative stress in cardiomyocyte cell cycle regulation, and discuss future therapeutic approaches targeting oxidative metabolism to induce cardiac regeneration.
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Affiliation(s)
- Wataru Kimura
- Department of Internal Medicine, University of Texas Southwestern Medical Center , Dallas, Texas.,Life Science Center, Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba, Ibaraki , Japan
| | - Yuji Nakada
- Department of Internal Medicine, University of Texas Southwestern Medical Center , Dallas, Texas
| | - Hesham A Sadek
- Department of Internal Medicine, University of Texas Southwestern Medical Center , Dallas, Texas.,Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center , Dallas, Texas
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84
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Adult cardiac stem cells are multipotent and robustly myogenic: c-kit expression is necessary but not sufficient for their identification. Cell Death Differ 2017; 24:2101-2116. [PMID: 28800128 PMCID: PMC5686347 DOI: 10.1038/cdd.2017.130] [Citation(s) in RCA: 111] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 06/14/2017] [Accepted: 07/03/2017] [Indexed: 12/15/2022] Open
Abstract
Multipotent adult resident cardiac stem cells (CSCs) were first identified by the expression of c-kit, the stem cell factor receptor. However, in the adult myocardium c-kit alone cannot distinguish CSCs from other c-kit-expressing (c-kitpos) cells. The adult heart indeed contains a heterogeneous mixture of c-kitpos cells, mainly composed of mast and endothelial/progenitor cells. This heterogeneity of cardiac c-kitpos cells has generated confusion and controversy about the existence and role of CSCs in the adult heart. Here, to unravel CSC identity within the heterogeneous c-kit-expressing cardiac cell population, c-kitpos cardiac cells were separated through CD45-positive or -negative sorting followed by c-kitpos sorting. The blood/endothelial lineage-committed (Lineagepos) CD45posc-kitpos cardiac cells were compared to CD45neg(Lineageneg/Linneg) c-kitpos cardiac cells for stemness and myogenic properties in vitro and in vivo. The majority (~90%) of the resident c-kitpos cardiac cells are blood/endothelial lineage-committed CD45posCD31posc-kitpos cells. In contrast, the LinnegCD45negc-kitpos cardiac cell cohort, which represents ⩽10% of the total c-kitpos cells, contain all the cardiac cells with the properties of adult multipotent CSCs. These characteristics are absent from the c-kitneg and the blood/endothelial lineage-committed c-kitpos cardiac cells. Single Linnegc-kitpos cell-derived clones, which represent only 1-2% of total c-kitpos myocardial cells, when stimulated with TGF-β/Wnt molecules, acquire full transcriptome and protein expression, sarcomere organisation, spontaneous contraction and electrophysiological properties of differentiated cardiomyocytes (CMs). Genetically tagged cloned progeny of one Linnegc-kitpos cell when injected into the infarcted myocardium, results in significant regeneration of new CMs, arterioles and capillaries, derived from the injected cells. The CSC's myogenic regenerative capacity is dependent on commitment to the CM lineage through activation of the SMAD2 pathway. Such regeneration was not apparent when blood/endothelial lineage-committed c-kitpos cardiac cells were injected. Thus, among the cardiac c-kitpos cell cohort only a very small fraction has the phenotype and the differentiation/regenerative potential characteristics of true multipotent CSCs.
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85
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Choong OK, Lee DS, Chen CY, Hsieh PCH. The roles of non-coding RNAs in cardiac regenerative medicine. Noncoding RNA Res 2017; 2:100-110. [PMID: 30159427 PMCID: PMC6096405 DOI: 10.1016/j.ncrna.2017.06.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 06/03/2017] [Accepted: 06/05/2017] [Indexed: 02/06/2023] Open
Abstract
The emergence of non-coding RNAs (ncRNAs) has challenged the central dogma of molecular biology that dictates that the decryption of genetic information starts from transcription of DNA to RNA, with subsequent translation into a protein. Large numbers of ncRNAs with biological significance have now been identified, suggesting that ncRNAs are important in their own right and their roles extend far beyond what was originally envisaged. ncRNAs do not only regulate gene expression, but are also involved in chromatin architecture and structural conformation. Several studies have pointed out that ncRNAs participate in heart disease; however, the functions of ncRNAs still remain unclear. ncRNAs are involved in cellular fate, differentiation, proliferation and tissue regeneration, hinting at their potential therapeutic applications. Here, we review the current understanding of both the biological functions and molecular mechanisms of ncRNAs in heart disease and describe some of the ncRNAs that have potential heart regeneration effects.
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Affiliation(s)
- Oi Kuan Choong
- Taiwan International Graduate Program in Molecular Medicine, National Yang-Ming University and Academia Sinica, Taipei, Taiwan.,Institute of Biomedical Sciences, Academia Sinica, Taipei 115, Taiwan
| | - Desy S Lee
- Institute of Biomedical Sciences, Academia Sinica, Taipei 115, Taiwan
| | - Chen-Yun Chen
- Institute of Biomedical Sciences, Academia Sinica, Taipei 115, Taiwan
| | - Patrick C H Hsieh
- Taiwan International Graduate Program in Molecular Medicine, National Yang-Ming University and Academia Sinica, Taipei, Taiwan.,Institute of Biomedical Sciences, Academia Sinica, Taipei 115, Taiwan.,Institute of Medical Genomics and Proteomics, Institute of Clinical Medicine and Department of Surgery, National Taiwan University & Hospital, Taipei 100, Taiwan
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86
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The extracellular matrix protein agrin promotes heart regeneration in mice. Nature 2017; 547:179-184. [PMID: 28581497 DOI: 10.1038/nature22978] [Citation(s) in RCA: 430] [Impact Index Per Article: 61.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 05/12/2017] [Indexed: 02/07/2023]
Abstract
The adult mammalian heart is non-regenerative owing to the post-mitotic nature of cardiomyocytes. The neonatal mouse heart can regenerate, but only during the first week of life. Here we show that changes in the composition of the extracellular matrix during this week can affect cardiomyocyte growth and differentiation in mice. We identify agrin, a component of neonatal extracellular matrix, as required for the full regenerative capacity of neonatal mouse hearts. In vitro, recombinant agrin promotes the division of cardiomyocytes that are derived from mouse and human induced pluripotent stem cells through a mechanism that involves the disassembly of the dystrophin-glycoprotein complex, and Yap- and ERK-mediated signalling. In vivo, a single administration of agrin promotes cardiac regeneration in adult mice after myocardial infarction, although the degree of cardiomyocyte proliferation observed in this model suggests that there are additional therapeutic mechanisms. Together, our results uncover a new inducer of mammalian heart regeneration and highlight fundamental roles of the extracellular matrix in cardiac repair.
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87
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Amit U, Kain D, Wagner A, Sahu A, Nevo-Caspi Y, Gonen N, Molotski N, Konfino T, Landa N, Naftali-Shani N, Blum G, Merquiol E, Karo-Atar D, Kanfi Y, Paret G, Munitz A, Cohen HY, Ruppin E, Hannenhalli S, Leor J. New Role for Interleukin-13 Receptor α1 in Myocardial Homeostasis and Heart Failure. J Am Heart Assoc 2017; 6:JAHA.116.005108. [PMID: 28528324 PMCID: PMC5524075 DOI: 10.1161/jaha.116.005108] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND The immune system plays a pivotal role in myocardial homeostasis and response to injury. Interleukins-4 and -13 are anti-inflammatory type-2 cytokines, signaling via the common interleukin-13 receptor α1 chain and the type-2 interleukin-4 receptor. The role of interleukin-13 receptor α1 in the heart is unknown. METHODS AND RESULTS We analyzed myocardial samples from human donors (n=136) and patients with end-stage heart failure (n=177). We found that the interleukin-13 receptor α1 is present in the myocardium and, together with the complementary type-2 interleukin-4 receptor chain Il4ra, is significantly downregulated in the hearts of patients with heart failure. Next, we showed that Il13ra1-deficient mice develop severe myocardial dysfunction and dyssynchrony compared to wild-type mice (left ventricular ejection fraction 29.7±9.9 versus 45.0±8.0; P=0.004, left ventricular end-diastolic diameter 4.2±0.2 versus 3.92±0.3; P=0.03). A bioinformatic analysis of mouse hearts indicated that interleukin-13 receptor α1 regulates critical pathways in the heart other than the immune system, such as extracellular matrix (normalized enrichment score=1.90; false discovery rate q=0.005) and glucose metabolism (normalized enrichment score=-2.36; false discovery rate q=0). Deficiency of Il13ra1 was associated with reduced collagen deposition under normal and pressure-overload conditions. CONCLUSIONS The results of our studies in humans and mice indicate, for the first time, a role of interleukin-13 receptor α1 in myocardial homeostasis and heart failure and suggests a new therapeutic target to treat heart disease.
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Affiliation(s)
- Uri Amit
- Neufeld Cardiac Research Institute, Tel Aviv University, Tel-Hashomer, Israel
- Sheba Center for Regenerative Medicine, Stem Cell, and Tissue Engineering, Sheba Medical Center, Tel-Hashomer, Israel
- Tamman Cardiovascular Research Institute, Sheba Medical Center, Tel-Hashomer, Israel
- The Dr. Pinchas Borenstein Talpiot Medical Leadership Program, Sheba Medical Center, Tel-Hashomer, Israel
| | - David Kain
- Neufeld Cardiac Research Institute, Tel Aviv University, Tel-Hashomer, Israel
- Sheba Center for Regenerative Medicine, Stem Cell, and Tissue Engineering, Sheba Medical Center, Tel-Hashomer, Israel
- Tamman Cardiovascular Research Institute, Sheba Medical Center, Tel-Hashomer, Israel
| | - Allon Wagner
- The Blavatnik School of Computer Science, Tel Aviv University, Tel Aviv, Israel
- Department of Electrical Engineering and Computer Science, University of California, Berkeley, CA
| | - Avinash Sahu
- Department of Cell Biology and Molecular Genetics, Center for Bioinformatics and Computational Biology, University of Maryland, College Park, MD
| | - Yael Nevo-Caspi
- Department of Pediatric Critical Care Medicine, Safra Children's Hospital, Tel-Hashomer, Israel
| | - Nir Gonen
- The Blavatnik School of Computer Science, Tel Aviv University, Tel Aviv, Israel
| | - Natali Molotski
- Neufeld Cardiac Research Institute, Tel Aviv University, Tel-Hashomer, Israel
- Sheba Center for Regenerative Medicine, Stem Cell, and Tissue Engineering, Sheba Medical Center, Tel-Hashomer, Israel
- Tamman Cardiovascular Research Institute, Sheba Medical Center, Tel-Hashomer, Israel
| | - Tal Konfino
- Neufeld Cardiac Research Institute, Tel Aviv University, Tel-Hashomer, Israel
- Sheba Center for Regenerative Medicine, Stem Cell, and Tissue Engineering, Sheba Medical Center, Tel-Hashomer, Israel
- Tamman Cardiovascular Research Institute, Sheba Medical Center, Tel-Hashomer, Israel
| | - Natalie Landa
- Neufeld Cardiac Research Institute, Tel Aviv University, Tel-Hashomer, Israel
- Sheba Center for Regenerative Medicine, Stem Cell, and Tissue Engineering, Sheba Medical Center, Tel-Hashomer, Israel
- Tamman Cardiovascular Research Institute, Sheba Medical Center, Tel-Hashomer, Israel
| | - Nili Naftali-Shani
- Neufeld Cardiac Research Institute, Tel Aviv University, Tel-Hashomer, Israel
- Sheba Center for Regenerative Medicine, Stem Cell, and Tissue Engineering, Sheba Medical Center, Tel-Hashomer, Israel
- Tamman Cardiovascular Research Institute, Sheba Medical Center, Tel-Hashomer, Israel
| | - Galia Blum
- The Institute of Drug Research, The School of Pharmacy, The Faculty of Medicine, Campus Ein Karem, Hebrew University, Jerusalem, Israel
| | - Emmanuelle Merquiol
- The Institute of Drug Research, The School of Pharmacy, The Faculty of Medicine, Campus Ein Karem, Hebrew University, Jerusalem, Israel
| | - Danielle Karo-Atar
- Department of Clinical Microbiology and Immunology, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yariv Kanfi
- Mina & Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel
| | - Gidi Paret
- Department of Pediatric Critical Care Medicine, Safra Children's Hospital, Tel-Hashomer, Israel
| | - Ariel Munitz
- Department of Clinical Microbiology and Immunology, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Haim Y Cohen
- Mina & Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel
| | - Eytan Ruppin
- The Blavatnik School of Computer Science, Tel Aviv University, Tel Aviv, Israel
- The Blavatnik School of Computer Science and Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Sridhar Hannenhalli
- Department of Cell Biology and Molecular Genetics, Center for Bioinformatics and Computational Biology, University of Maryland, College Park, MD
| | - Jonathan Leor
- Neufeld Cardiac Research Institute, Tel Aviv University, Tel-Hashomer, Israel
- Sheba Center for Regenerative Medicine, Stem Cell, and Tissue Engineering, Sheba Medical Center, Tel-Hashomer, Israel
- Tamman Cardiovascular Research Institute, Sheba Medical Center, Tel-Hashomer, Israel
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88
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Galdos FX, Guo Y, Paige SL, VanDusen NJ, Wu SM, Pu WT. Cardiac Regeneration: Lessons From Development. Circ Res 2017; 120:941-959. [PMID: 28302741 DOI: 10.1161/circresaha.116.309040] [Citation(s) in RCA: 102] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 12/14/2016] [Accepted: 12/15/2016] [Indexed: 02/06/2023]
Abstract
Palliative surgery for congenital heart disease has allowed patients with previously lethal heart malformations to survive and, in most cases, to thrive. However, these procedures often place pressure and volume loads on the heart, and over time, these chronic loads can cause heart failure. Current therapeutic options for initial surgery and chronic heart failure that results from failed palliation are limited, in part, by the mammalian heart's low inherent capacity to form new cardiomyocytes. Surmounting the heart regeneration barrier would transform the treatment of congenital, as well as acquired, heart disease and likewise would enable development of personalized, in vitro cardiac disease models. Although these remain distant goals, studies of heart development are illuminating the path forward and suggest unique opportunities for heart regeneration, particularly in fetal and neonatal periods. Here, we review major lessons from heart development that inform current and future studies directed at enhancing cardiac regeneration.
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Affiliation(s)
- Francisco X Galdos
- From the Cardiovascular Institute, School of Medicine, Stanford University, CA (F.X.G., S.L.P., S.M.W.); Department of Cardiology, Boston Children's Hospital, MA (Y.G., N.J.V., W.T.P.); Division of Pediatric Cardiology, Department of Pediatrics (S.L.P.), Division of Cardiovascular Medicine, Department of Medicine (S.M.W.), and Institute of Stem Cell and Regenerative Biology, School of Medicine, Stanford, CA (F.X.G., S.L.P., S.M.W.); and Harvard Stem Cell Institute, Harvard University, Cambridge, MA (W.T.P.)
| | - Yuxuan Guo
- From the Cardiovascular Institute, School of Medicine, Stanford University, CA (F.X.G., S.L.P., S.M.W.); Department of Cardiology, Boston Children's Hospital, MA (Y.G., N.J.V., W.T.P.); Division of Pediatric Cardiology, Department of Pediatrics (S.L.P.), Division of Cardiovascular Medicine, Department of Medicine (S.M.W.), and Institute of Stem Cell and Regenerative Biology, School of Medicine, Stanford, CA (F.X.G., S.L.P., S.M.W.); and Harvard Stem Cell Institute, Harvard University, Cambridge, MA (W.T.P.)
| | - Sharon L Paige
- From the Cardiovascular Institute, School of Medicine, Stanford University, CA (F.X.G., S.L.P., S.M.W.); Department of Cardiology, Boston Children's Hospital, MA (Y.G., N.J.V., W.T.P.); Division of Pediatric Cardiology, Department of Pediatrics (S.L.P.), Division of Cardiovascular Medicine, Department of Medicine (S.M.W.), and Institute of Stem Cell and Regenerative Biology, School of Medicine, Stanford, CA (F.X.G., S.L.P., S.M.W.); and Harvard Stem Cell Institute, Harvard University, Cambridge, MA (W.T.P.)
| | - Nathan J VanDusen
- From the Cardiovascular Institute, School of Medicine, Stanford University, CA (F.X.G., S.L.P., S.M.W.); Department of Cardiology, Boston Children's Hospital, MA (Y.G., N.J.V., W.T.P.); Division of Pediatric Cardiology, Department of Pediatrics (S.L.P.), Division of Cardiovascular Medicine, Department of Medicine (S.M.W.), and Institute of Stem Cell and Regenerative Biology, School of Medicine, Stanford, CA (F.X.G., S.L.P., S.M.W.); and Harvard Stem Cell Institute, Harvard University, Cambridge, MA (W.T.P.)
| | - Sean M Wu
- From the Cardiovascular Institute, School of Medicine, Stanford University, CA (F.X.G., S.L.P., S.M.W.); Department of Cardiology, Boston Children's Hospital, MA (Y.G., N.J.V., W.T.P.); Division of Pediatric Cardiology, Department of Pediatrics (S.L.P.), Division of Cardiovascular Medicine, Department of Medicine (S.M.W.), and Institute of Stem Cell and Regenerative Biology, School of Medicine, Stanford, CA (F.X.G., S.L.P., S.M.W.); and Harvard Stem Cell Institute, Harvard University, Cambridge, MA (W.T.P.).
| | - William T Pu
- From the Cardiovascular Institute, School of Medicine, Stanford University, CA (F.X.G., S.L.P., S.M.W.); Department of Cardiology, Boston Children's Hospital, MA (Y.G., N.J.V., W.T.P.); Division of Pediatric Cardiology, Department of Pediatrics (S.L.P.), Division of Cardiovascular Medicine, Department of Medicine (S.M.W.), and Institute of Stem Cell and Regenerative Biology, School of Medicine, Stanford, CA (F.X.G., S.L.P., S.M.W.); and Harvard Stem Cell Institute, Harvard University, Cambridge, MA (W.T.P.).
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89
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Chen Z, Xie J, Hao H, Lin H, Wang L, Zhang Y, Chen L, Cao S, Huang X, Liao W, Bin J, Liao Y. Ablation of periostin inhibits post-infarction myocardial regeneration in neonatal mice mediated by the phosphatidylinositol 3 kinase/glycogen synthase kinase 3β/cyclin D1 signalling pathway. Cardiovasc Res 2017; 113:620-632. [PMID: 28453729 PMCID: PMC5412017 DOI: 10.1093/cvr/cvx001] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 09/27/2016] [Accepted: 01/06/2017] [Indexed: 02/06/2023] Open
Abstract
AIMS To resolve the controversy as to whether periostin plays a role in myocardial regeneration after myocardial infarction (MI), we created a neonatal mouse model of MI to investigate the influence of periostin ablation on myocardial regeneration and clarify the underlying mechanisms. METHODS AND RESULTS Neonatal periostin-knockout mice and their wildtype littermates were subjected to MI or sham surgery. In the wildtype mice after MI, fibrosis was detectable at 3 days and fibrotic tissue was completely replaced by regenerated myocardium at 21 days. In contrast, in the knockout mice, significant fibrosis in the infarcted area was present at even 3 weeks after MI. Levels of phosphorylated-histone 3 and aurora B in the myocardium, detected by immunofluorescence and western blotting, were significantly lower in knockout than in wildtype mice at 7 days after MI. Similarly, angiogenesis was decreased in the knockout mice after MI. Expression of both the endothelial marker CD-31 and α-smooth muscle actin was markedly lower in the knockout than in wildtype mice at 7 days after MI. The knockout MI group had elevated levels of glycogen synthase kinase (GSK) 3β and decreased phosphatidylinositol 3-kinase (PI3K), phosphorylated serine/threonine protein kinase B (p-Akt), and cyclin D1, compared with the wildtype MI group. Similar effects were observed in experiments using cultured cardiomyocytes from neonatal wildtype or periostin knockout mice. Administration of SB216763, a GSK3β inhibitor, to knockout neonatal mice decreased myocardial fibrosis and increased angiogenesis in the infarcted area after MI. CONCLUSION Ablation of periostin suppresses post-infarction myocardial regeneration by inhibiting the PI3K/GSK3β/cyclin D1 signalling pathway, indicating that periostin is essential for myocardial regeneration.
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Affiliation(s)
- Zhenhuan Chen
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, 1838, Guangzhou Avenue North, Guangzhou 510515, China
| | - Jiahe Xie
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, 1838, Guangzhou Avenue North, Guangzhou 510515, China
| | - Huixin Hao
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, 1838, Guangzhou Avenue North, Guangzhou 510515, China
| | - Hairuo Lin
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, 1838, Guangzhou Avenue North, Guangzhou 510515, China
| | - Long Wang
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, 1838, Guangzhou Avenue North, Guangzhou 510515, China
| | - Yingxue Zhang
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, 1838, Guangzhou Avenue North, Guangzhou 510515, China
| | - Lin Chen
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, 1838, Guangzhou Avenue North, Guangzhou 510515, China
| | - Shiping Cao
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, 1838, Guangzhou Avenue North, Guangzhou 510515, China
| | - Xiaobo Huang
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, 1838, Guangzhou Avenue North, Guangzhou 510515, China
| | - Wangjun Liao
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Jianping Bin
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, 1838, Guangzhou Avenue North, Guangzhou 510515, China
| | - Yulin Liao
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, 1838, Guangzhou Avenue North, Guangzhou 510515, China
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90
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Tang L, Mo Y, Li Y, Zhong Y, He S, Zhang Y, Tang Y, Fu S, Wang X, Chen A. Urolithin A alleviates myocardial ischemia/reperfusion injury via PI3K/Akt pathway. Biochem Biophys Res Commun 2017; 486:774-780. [PMID: 28343995 DOI: 10.1016/j.bbrc.2017.03.119] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 03/22/2017] [Indexed: 01/30/2023]
Abstract
Ischemia/reperfusion (I/R) induces additional damage to the restoration of blood flow to ischemic myocardium. This study examined the effects of urolithin A (UA) on myocardial injury of ischemia/reperfusion in vivo and vitro and explored its underlying mechanisms. Mice were subjected to myocardial ischemia followed by reperfusion. Cells were subjected to hypoxia followed by reoxygenation. UA alleviated hypoxia/reoxygenation (H/R) injury in myocardial cells, reduced myocardial infarct size and cell death in mice after ischemia/reperfusion. Meanwhile, UA enhanced antioxidant capacity in cardiomyocytes following hypoxia/reoxygenation. UA reduced myocardial apoptosis following ischemia/reperfusion. The protection of UA was abolished by LY294002, a PI3K/Akt-inhibitor. These results demonstrated that UA alleviates myocardial ischemia/reperfusion injury probably through PI3K/Akt pathway.
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Affiliation(s)
- Lu Tang
- Department of Cardiology, Zhujiang Hospital of Southern Medical University, No. 253, Gongye Road, Guangzhou 510280, China; Department of Cardiology, Yiyang Central Hospital, Kangfu Road 118, Yiyang, Hunan 413000, China
| | - Yingli Mo
- Department of Internal Medicine, Yiyang Medical College, Yingbin Road 516, Yiyang, Hunan 413000, China; Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Yunpeng Li
- Department of Cardiology, Zhujiang Hospital of Southern Medical University, No. 253, Gongye Road, Guangzhou 510280, China
| | - Yongkang Zhong
- Department of Cardiology, Zhujiang Hospital of Southern Medical University, No. 253, Gongye Road, Guangzhou 510280, China
| | - Shangfei He
- Department of Cardiology, Zhujiang Hospital of Southern Medical University, No. 253, Gongye Road, Guangzhou 510280, China
| | - Ya Zhang
- Department of Cardiology, Zhujiang Hospital of Southern Medical University, No. 253, Gongye Road, Guangzhou 510280, China
| | - Ying Tang
- Department of Cardiology, Zhujiang Hospital of Southern Medical University, No. 253, Gongye Road, Guangzhou 510280, China
| | - Shanshan Fu
- Department of Cardiology, Zhujiang Hospital of Southern Medical University, No. 253, Gongye Road, Guangzhou 510280, China
| | - Xianbao Wang
- Department of Cardiology, Zhujiang Hospital of Southern Medical University, No. 253, Gongye Road, Guangzhou 510280, China
| | - Aihua Chen
- Department of Cardiology, Zhujiang Hospital of Southern Medical University, No. 253, Gongye Road, Guangzhou 510280, China.
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91
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Münch J, Grivas D, González-Rajal Á, Torregrosa-Carrión R, de la Pompa JL. Notch signalling restricts inflammation and serpine1 expression in the dynamic endocardium of the regenerating zebrafish heart. Development 2017; 144:1425-1440. [PMID: 28242613 DOI: 10.1242/dev.143362] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Accepted: 02/20/2017] [Indexed: 01/13/2023]
Abstract
The zebrafish heart regenerates after ventricular damage through a process involving inflammation, fibrotic tissue deposition/removal and myocardial regeneration. Using 3D whole-mount imaging, we reveal a highly dynamic endocardium during cardiac regeneration, including changes in cell morphology, behaviour and gene expression. These events lay the foundation for an initial expansion of the endocardium that matures to form a coherent endocardial structure within the injury site. We studied two important endocardial molecules, Serpine1 and Notch, which are implicated in different aspects of endocardial regeneration. Notch signalling regulates developmental gene expression and features of endocardial maturation. Also, Notch manipulation interferes with attenuation of the inflammatory response and cardiomyocyte proliferation and dedifferentiation. serpine1 is strongly expressed very early in the wound endocardium, with decreasing expression at later time points. serpine1 expression persists in Notch-abrogated hearts, via what appears to be a conserved mechanism. Functional inhibition studies show that Serpine1 controls endocardial maturation and proliferation and cardiomyocyte proliferation. Thus, we describe a highly dynamic endocardium in the regenerating zebrafish heart, with two key endocardial players, Serpine1 and Notch signalling, regulating crucial regenerative processes.
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Affiliation(s)
- Juliane Münch
- Intercellular Signalling in Cardiovascular Development and Disease Laboratory, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro 3, Madrid E-28029, Spain.,Institute of Biochemistry and Biology, Potsdam University, Karl-Liebknecht-Straße 24-25, Potsdam D-14476, Germany
| | - Dimitrios Grivas
- Intercellular Signalling in Cardiovascular Development and Disease Laboratory, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro 3, Madrid E-28029, Spain.,CIBER CV, 28029 Madrid, Spain
| | - Álvaro González-Rajal
- Intercellular Signalling in Cardiovascular Development and Disease Laboratory, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro 3, Madrid E-28029, Spain.,Cancer Division, Garvan Institute of Medical Research, The Kinghorn Cancer Centre, 370 Victoria Street, Darlinghurst NSW 2010, Australia
| | - Rebeca Torregrosa-Carrión
- Intercellular Signalling in Cardiovascular Development and Disease Laboratory, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro 3, Madrid E-28029, Spain.,CIBER CV, 28029 Madrid, Spain
| | - José Luis de la Pompa
- Intercellular Signalling in Cardiovascular Development and Disease Laboratory, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro 3, Madrid E-28029, Spain .,CIBER CV, 28029 Madrid, Spain
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92
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Arbatlı S, Aslan GS, Kocabaş F. Stem Cells in Regenerative Cardiology. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 1079:37-53. [PMID: 29064067 DOI: 10.1007/5584_2017_113] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The common prevalence of heart failure and limitations in its treatment are leading cause of attention and interest towards the induction of cardiac regeneration with novel approaches. Recent studies provide growing evidence regarding bona fide cardiac regeneration post genetic manipulations, administration of stimulatory factors and myocardial injuries in animal models and human studies. To this end, stem cells of different sources have been tested to treat heart failure for the development of cellular therapies. Endogenous and exogenous stem cells sources used in regenerative cardiology have provided a proof of concept and applicability of cellular therapies in myocardial improvement. Recent clinical studies, especially, based on the endogenous cardiac progenitor and stem cells highlighted the possibility to regenerate lost cardiomyocytes in the myocardium. This review discusses emerging concepts in cardiac stem cell therapy, their sources and route of administration, and plausibility of de novo cardiomyocyte formation.
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Affiliation(s)
- Semih Arbatlı
- Regenerative Biology Research Laboratory, Department of Genetics and Bioengineering, Yeditepe University, Istanbul, Turkey
- Department of Biotechnology, Institute of Science, Yeditepe University, Istanbul, Turkey
| | - Galip Servet Aslan
- Regenerative Biology Research Laboratory, Department of Genetics and Bioengineering, Yeditepe University, Istanbul, Turkey
- Department of Biotechnology, Institute of Science, Yeditepe University, Istanbul, Turkey
| | - Fatih Kocabaş
- Regenerative Biology Research Laboratory, Department of Genetics and Bioengineering, Yeditepe University, Istanbul, Turkey.
- Department of Biotechnology, Institute of Science, Yeditepe University, Istanbul, Turkey.
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93
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Thienpont B, Aronsen JM, Robinson EL, Okkenhaug H, Loche E, Ferrini A, Brien P, Alkass K, Tomasso A, Agrawal A, Bergmann O, Sjaastad I, Reik W, Roderick HL. The H3K9 dimethyltransferases EHMT1/2 protect against pathological cardiac hypertrophy. J Clin Invest 2016; 127:335-348. [PMID: 27893464 DOI: 10.1172/jci88353] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Accepted: 10/17/2016] [Indexed: 11/17/2022] Open
Abstract
Cardiac hypertrophic growth in response to pathological cues is associated with reexpression of fetal genes and decreased cardiac function and is often a precursor to heart failure. In contrast, physiologically induced hypertrophy is adaptive, resulting in improved cardiac function. The processes that selectively induce these hypertrophic states are poorly understood. Here, we have profiled 2 repressive epigenetic marks, H3K9me2 and H3K27me3, which are involved in stable cellular differentiation, specifically in cardiomyocytes from physiologically and pathologically hypertrophied rat hearts, and correlated these marks with their associated transcriptomes. This analysis revealed the pervasive loss of euchromatic H3K9me2 as a conserved feature of pathological hypertrophy that was associated with reexpression of fetal genes. In hypertrophy, H3K9me2 was reduced following a miR-217-mediated decrease in expression of the H3K9 dimethyltransferases EHMT1 and EHMT2 (EHMT1/2). miR-217-mediated, genetic, or pharmacological inactivation of EHMT1/2 was sufficient to promote pathological hypertrophy and fetal gene reexpression, while suppression of this pathway protected against pathological hypertrophy both in vitro and in mice. Thus, we have established a conserved mechanism involving a departure of the cardiomyocyte epigenome from its adult cellular identity to a reprogrammed state that is accompanied by reexpression of fetal genes and pathological hypertrophy. These results suggest that targeting miR-217 and EHMT1/2 to prevent H3K9 methylation loss is a viable therapeutic approach for the treatment of heart disease.
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94
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An CI, Ichihashi Y, Peng J, Sinha NR, Hagiwara N. Transcriptome Dynamics and Potential Roles of Sox6 in the Postnatal Heart. PLoS One 2016; 11:e0166574. [PMID: 27832192 PMCID: PMC5104335 DOI: 10.1371/journal.pone.0166574] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2016] [Accepted: 10/31/2016] [Indexed: 01/20/2023] Open
Abstract
The postnatal heart undergoes highly coordinated developmental processes culminating in the complex physiologic properties of the adult heart. The molecular mechanisms of postnatal heart development remain largely unexplored despite their important clinical implications. To gain an integrated view of the dynamic changes in gene expression during postnatal heart development at the organ level, time-series transcriptome analyses of the postnatal hearts of neonatal through adult mice (P1, P7, P14, P30, and P60) were performed using a newly developed bioinformatics pipeline. We identified functional gene clusters by principal component analysis with self-organizing map clustering which revealed organized, discrete gene expression patterns corresponding to biological functions associated with the neonatal, juvenile and adult stages of postnatal heart development. Using weighted gene co-expression network analysis with bootstrap inference for each of these functional gene clusters, highly robust hub genes were identified which likely play key roles in regulating expression of co-expressed, functionally linked genes. Additionally, motivated by the role of the transcription factor Sox6 in the functional maturation of skeletal muscle, the role of Sox6 in the postnatal maturation of cardiac muscle was investigated. Differentially expressed transcriptome analyses between Sox6 knockout (KO) and control hearts uncovered significant upregulation of genes involved in cell proliferation at postnatal day 7 (P7) in the Sox6 KO heart. This result was validated by detecting mitotically active cells in the P7 Sox6 KO heart. The current report provides a framework for the complex molecular processes of postnatal heart development, thus enabling systematic dissection of the developmental regression observed in the stressed and failing adult heart.
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Affiliation(s)
- Chung-Il An
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of California Davis, Davis, California, United States of America
- * E-mail: (CA); (YI); (NH)
| | - Yasunori Ichihashi
- Department of Plant Biology, University of California Davis, Davis, California, United States of America
- * E-mail: (CA); (YI); (NH)
| | - Jie Peng
- Department of Statistics, University of California Davis, Davis, California, United States of America
| | - Neelima R. Sinha
- Department of Plant Biology, University of California Davis, Davis, California, United States of America
| | - Nobuko Hagiwara
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of California Davis, Davis, California, United States of America
- * E-mail: (CA); (YI); (NH)
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95
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Zlatanova I, Pinto C, Silvestre JS. Immune Modulation of Cardiac Repair and Regeneration: The Art of Mending Broken Hearts. Front Cardiovasc Med 2016; 3:40. [PMID: 27790620 PMCID: PMC5063859 DOI: 10.3389/fcvm.2016.00040] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 09/30/2016] [Indexed: 12/15/2022] Open
Abstract
The accumulation of immune cells is among the earliest responses that manifest in the cardiac tissue after injury. Both innate and adaptive immunity coordinate distinct and mutually non-exclusive events governing cardiac repair, including elimination of the cellular debris, compensatory growth of the remaining cardiac tissue, activation of resident or circulating precursor cells, quantitative and qualitative modifications of the vascular network, and formation of a fibrotic scar. The present review summarizes the mounting evidence suggesting that the inflammatory response also guides the regenerative process following cardiac damage. In particular, recent literature has reinforced the central role of monocytes/macrophages in poising the refreshment of cardiomyocytes in myocardial infarction- or apical resection-induced cardiac insult. Macrophages dictate cardiac myocyte renewal through stimulation of preexisting cardiomyocyte proliferation and/or neovascularization. Nevertheless, substantial efforts are required to identify the nature of these macrophage-derived factors as well as the molecular mechanisms engendered by the distinct subsets of macrophages pertaining in the cardiac tissue. Among the growing inflammatory intermediaries that have been recognized as essential player in heart regeneration, we will focus on the role of interleukin (IL)-6 and IL-13. Finally, it is likely that within the mayhem of the injured cardiac tissue, additional types of inflammatory cells, such as neutrophils, will enter the dance to ignite and refresh the broken heart. However, the protective and detrimental inflammatory pathways have been mainly deciphered in animal models. Future research should be focused on understanding the cellular effectors and molecular signals regulating inflammation in human heart to pave the way for the development of factual therapies targeting the inflammatory compartment in cardiac diseases.
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Affiliation(s)
- Ivana Zlatanova
- UMRS-970, Paris Centre de Recherche Cardiovasculaire, Institut National de la Santé et de la Recherche Médicale (INSERM), Sorbonne Paris Cité, Université Paris Descartes , Paris , France
| | - Cristina Pinto
- UMRS-970, Paris Centre de Recherche Cardiovasculaire, Institut National de la Santé et de la Recherche Médicale (INSERM), Sorbonne Paris Cité, Université Paris Descartes , Paris , France
| | - Jean-Sébastien Silvestre
- UMRS-970, Paris Centre de Recherche Cardiovasculaire, Institut National de la Santé et de la Recherche Médicale (INSERM), Sorbonne Paris Cité, Université Paris Descartes , Paris , France
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96
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Macrophages and regeneration: Lessons from the heart. Semin Cell Dev Biol 2016; 58:26-33. [DOI: 10.1016/j.semcdb.2016.04.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 03/18/2016] [Accepted: 04/17/2016] [Indexed: 12/24/2022]
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97
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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] [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.
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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.
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98
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Blenck CL, Harvey PA, Reckelhoff JF, Leinwand LA. The Importance of Biological Sex and Estrogen in Rodent Models of Cardiovascular Health and Disease. Circ Res 2016; 118:1294-312. [PMID: 27081111 DOI: 10.1161/circresaha.116.307509] [Citation(s) in RCA: 120] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 03/21/2016] [Indexed: 01/01/2023]
Abstract
Nearly one-third of deaths in the United States are caused by cardiovascular disease (CVD) each year. In the past, CVD was thought to mainly affect men, leading to the exclusion of women and female animals from clinical studies and preclinical research. In light of sexual dimorphisms in CVD, a need exists to examine baseline cardiac differences in humans and the animals used to model CVD. In humans, sex differences are apparent at every level of cardiovascular physiology from action potential duration and mitochondrial energetics to cardiac myocyte and whole-heart contractile function. Biological sex is an important modifier of the development of CVD with younger women generally being protected, but this cardioprotection is lost later in life, suggesting a role for estrogen. Although endogenous estrogen is most likely a mediator of the observed functional differences in both health and disease, the signaling mechanisms involved are complex and are not yet fully understood. To investigate how sex modulates CVD development, animal models are essential tools and should be useful in the development of therapeutics. This review will focus on describing the cardiovascular sexual dimorphisms that exist both physiologically and in common animal models of CVD.
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Affiliation(s)
- Christa L Blenck
- From the Department of Molecular, Cellular, and Developmental Biology & BioFrontiers Institute, University of Colorado, Boulder (C.L.B., P.A.H., L.A.L.); and Women's Health Research Center and Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson (J.F.R.)
| | - Pamela A Harvey
- From the Department of Molecular, Cellular, and Developmental Biology & BioFrontiers Institute, University of Colorado, Boulder (C.L.B., P.A.H., L.A.L.); and Women's Health Research Center and Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson (J.F.R.)
| | - Jane F Reckelhoff
- From the Department of Molecular, Cellular, and Developmental Biology & BioFrontiers Institute, University of Colorado, Boulder (C.L.B., P.A.H., L.A.L.); and Women's Health Research Center and Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson (J.F.R.)
| | - Leslie A Leinwand
- From the Department of Molecular, Cellular, and Developmental Biology & BioFrontiers Institute, University of Colorado, Boulder (C.L.B., P.A.H., L.A.L.); and Women's Health Research Center and Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson (J.F.R.).
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99
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Pugach EK, Blenck CL, Dragavon JM, Langer SJ, Leinwand LA. Estrogen receptor profiling and activity in cardiac myocytes. Mol Cell Endocrinol 2016; 431:62-70. [PMID: 27164442 PMCID: PMC4899180 DOI: 10.1016/j.mce.2016.05.004] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Revised: 04/14/2016] [Accepted: 05/05/2016] [Indexed: 01/01/2023]
Abstract
Estrogen signaling appears critical in the heart. However a mechanistic understanding of the role of estrogen in the cardiac myocyte is lacking. Moreover, there are multiple cell types in the heart and multiple estrogen receptor (ER) isoforms. Therefore, we studied expression, localization, transcriptional and signaling activity of ERs in isolated cardiac myocytes. We found only ERα RNA (but no ERβ RNA) in cardiac myocytes using two independent methods. The vast majority of full-length ERα protein (ERα66) localizes to cardiac myocyte nuclei where it is competent to activate transcription. Alternate isoforms of ERα encoded by the same genomic locus (ERα46 and ERα36) have differential transcriptional activity in cardiac myocytes but also primarily localize to nuclei. In contrast to other reports, no ERα isoform is competent to activate MAPK or PI3K signaling in cardiac myocytes. Together these data support a role for ERα at the level of transcription in cardiac myocytes.
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Affiliation(s)
- Emily K Pugach
- University of Colorado at Boulder, Department of Molecular, Cellular, and Developmental Biology, BioFrontiers Institute, Boulder, CO 80303 USA
| | - Christa L Blenck
- University of Colorado at Boulder, Department of Molecular, Cellular, and Developmental Biology, BioFrontiers Institute, Boulder, CO 80303 USA
| | - Joseph M Dragavon
- University of Colorado, BioFrontiers Advanced Light Microscopy Core, BioFrontiers Institute, Boulder, CO 80309 USA
| | - Stephen J Langer
- University of Colorado at Boulder, Department of Molecular, Cellular, and Developmental Biology, BioFrontiers Institute, Boulder, CO 80303 USA
| | - Leslie A Leinwand
- University of Colorado at Boulder, Department of Molecular, Cellular, and Developmental Biology, BioFrontiers Institute, Boulder, CO 80303 USA
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100
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Vivien CJ, Hudson JE, Porrello ER. Evolution, comparative biology and ontogeny of vertebrate heart regeneration. NPJ Regen Med 2016; 1:16012. [PMID: 29302337 PMCID: PMC5744704 DOI: 10.1038/npjregenmed.2016.12] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 06/01/2016] [Accepted: 06/15/2016] [Indexed: 12/19/2022] Open
Abstract
There are 64,000 living species of vertebrates on our planet and all of them have a heart. Comparative analyses devoted to understanding the regenerative potential of the myocardium have been performed in a dozen vertebrate species with the aim of developing regenerative therapies for human heart disease. Based on this relatively small selection of animal models, important insights into the evolutionary conservation of regenerative mechanisms have been gained. In this review, we survey cardiac regeneration studies in diverse species to provide an evolutionary context for the lack of regenerative capacity in the adult mammalian heart. Our analyses highlight the importance of cardiac adaptations that have occurred over hundreds of millions of years during the transition from aquatic to terrestrial life, as well as during the transition from the womb to an oxygen-rich environment at birth. We also discuss the evolution and ontogeny of cardiac morphological, physiological and metabolic adaptations in the context of heart regeneration. Taken together, our findings suggest that cardiac regenerative potential correlates with a low-metabolic state, the inability to regulate body temperature, low heart pressure, hypoxia, immature cardiomyocyte structure and an immature immune system. A more complete understanding of the evolutionary context and developmental mechanisms governing cardiac regenerative capacity would provide stronger scientific foundations for the translation of cardiac regeneration therapies into the clinic.
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Affiliation(s)
- Celine J Vivien
- School of Biomedical Sciences, The University of Queensland, Brisbane, QLD, Australia
- Centre for Cardiac and Vascular Biology, The University of Queensland, Brisbane, QLD, Australia
| | - James E Hudson
- School of Biomedical Sciences, The University of Queensland, Brisbane, QLD, Australia
- Centre for Cardiac and Vascular Biology, The University of Queensland, Brisbane, QLD, Australia
| | - Enzo R Porrello
- School of Biomedical Sciences, The University of Queensland, Brisbane, QLD, Australia
- Centre for Cardiac and Vascular Biology, The University of Queensland, Brisbane, QLD, Australia
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