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Huang H, Park S, Ross I, Moreno J, Khyeam S, Simmons J, Huang GN, Payumo AY. Quantitative label-free digital holographic imaging of cardiomyocyte optical volume, nucleation, and cell division. J Mol Cell Cardiol 2024; 196:94-104. [PMID: 39251060 DOI: 10.1016/j.yjmcc.2024.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Revised: 08/18/2024] [Accepted: 09/05/2024] [Indexed: 09/11/2024]
Abstract
Cardiac regeneration in newborn rodents depends on the ability of pre-existing cardiomyocytes to proliferate and divide. This capacity is lost within the first week of postnatal development when these cells rapidly switch from hyperplasia to hypertrophy, withdraw from the cell cycle, become binucleated, and increase in size. How these dynamic changes in cell size and nucleation impact cardiomyocyte proliferative potential is not well understood. In this study, we innovate the application of a commercially available digital holographic imaging microscope, the Holomonitor M4, to evaluate the proliferative responses of mononucleated and binucleated cardiomyocytes after CHIR99021 treatment, a model proliferative stimulus. This system enables long-term label-free quantitative tracking of primary cardiomyocyte dynamics in real-time with single-cell resolution. Our results confirm that chemical inhibition of glycogen synthase kinase 3 with CHIR99021 promotes complete cell division of both mononucleated and binucleated cardiomyocytes with high frequency. Quantitative tracking of cardiomyocyte volume dynamics during these proliferative events revealed that both mononucleated and binucleated cardiomyocytes reach a similar size-increase threshold prior to attempted cell division. Binucleated cardiomyocytes attempt to divide with lower frequency than mononucleated cardiomyocytes, which may be associated with inadequate increases in cell size. By defining the interrelationship between cardiomyocyte size, nucleation, and cell cycle control, we may better understand the cellular mechanisms that drive the loss of mammalian cardiac regenerative capacity after birth.
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Affiliation(s)
- Herman Huang
- Department of Biological Sciences, San Jose State University, San Jose, CA 95192, USA
| | - Sangsoon Park
- Cardiovascular Research Institute & Department of Physiology, University of California, San Francisco, San Francisco, CA 94158, USA; Eli and Edythe Broad Center for Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA 94158, USA; BAKAR Aging Research Institute, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Ines Ross
- Department of Biological Sciences, San Jose State University, San Jose, CA 95192, USA
| | - Joseph Moreno
- Cardiovascular Research Institute & Department of Physiology, University of California, San Francisco, San Francisco, CA 94158, USA; Eli and Edythe Broad Center for Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA 94158, USA; BAKAR Aging Research Institute, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Sheamin Khyeam
- Cardiovascular Research Institute & Department of Physiology, University of California, San Francisco, San Francisco, CA 94158, USA; Eli and Edythe Broad Center for Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA 94158, USA; BAKAR Aging Research Institute, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Jacquelyn Simmons
- Department of Biological Sciences, San Jose State University, San Jose, CA 95192, USA
| | - Guo N Huang
- Cardiovascular Research Institute & Department of Physiology, University of California, San Francisco, San Francisco, CA 94158, USA; Eli and Edythe Broad Center for Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA 94158, USA; BAKAR Aging Research Institute, University of California, San Francisco, San Francisco, CA 94158, USA.
| | - Alexander Y Payumo
- Department of Biological Sciences, San Jose State University, San Jose, CA 95192, USA.
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2
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Aviel G, Elkahal J, Umansky KB, Bueno-Levy H, Petrover Z, Kotlovski Y, Lendengolts D, Kain D, Shalit T, Zhang L, Miyara S, Kramer MP, Merbl Y, Kozlovski S, Alon R, Aharoni R, Arnon R, Mishali D, Katz U, Nachman D, Asleh R, Amir O, Tzahor E, Sarig R. Repurposing of glatiramer acetate to treat cardiac ischemia in rodent models. NATURE CARDIOVASCULAR RESEARCH 2024; 3:1049-1066. [PMID: 39215106 DOI: 10.1038/s44161-024-00524-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 07/10/2024] [Indexed: 09/04/2024]
Abstract
Myocardial injury may ultimately lead to adverse ventricular remodeling and development of heart failure (HF), which is a major cause of morbidity and mortality worldwide. Given the slow pace and substantial costs of developing new therapeutics, drug repurposing is an attractive alternative. Studies of many organs, including the heart, highlight the importance of the immune system in modulating injury and repair outcomes. Glatiramer acetate (GA) is an immunomodulatory drug prescribed for patients with multiple sclerosis. Here, we report that short-term GA treatment improves cardiac function and reduces scar area in a mouse model of acute myocardial infarction and a rat model of ischemic HF. We provide mechanistic evidence indicating that, in addition to its immunomodulatory functions, GA exerts beneficial pleiotropic effects, including cardiomyocyte protection and enhanced angiogenesis. Overall, these findings highlight the potential repurposing of GA as a future therapy for a myriad of heart diseases.
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Affiliation(s)
- Gal Aviel
- The Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Jacob Elkahal
- The Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Kfir Baruch Umansky
- The Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Hanna Bueno-Levy
- The Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Zachary Petrover
- The Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Yulia Kotlovski
- The Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Daria Lendengolts
- The Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - David Kain
- The Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Tali Shalit
- Bioinformatics Unit, G-INCPM, Weizmann Institute of Science, Rehovot, Israel
| | - Lingling Zhang
- The Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Shoval Miyara
- The Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Matthias P Kramer
- The Department of Systems Immunology, Weizmann Institute of Science, Rehovot, Israel
| | - Yifat Merbl
- The Department of Systems Immunology, Weizmann Institute of Science, Rehovot, Israel
| | - Stav Kozlovski
- The Department of Immunology and Regenerative Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Ronen Alon
- The Department of Immunology and Regenerative Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Rina Aharoni
- The Department of Immunology and Regenerative Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Ruth Arnon
- The Department of Immunology and Regenerative Biology, Weizmann Institute of Science, Rehovot, Israel
| | - David Mishali
- Pediatric Heart Institute, Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel Hashomer, Israel
| | - Uriel Katz
- Pediatric Heart Institute, Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel Hashomer, Israel
- Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Dean Nachman
- Heart Institute, Hadassah Medical Center and Faculty of Medicine, Hebrew University, Jerusalem, Israel
| | - Rabea Asleh
- Heart Institute, Hadassah Medical Center and Faculty of Medicine, Hebrew University, Jerusalem, Israel
| | - Offer Amir
- Heart Institute, Hadassah Medical Center and Faculty of Medicine, Hebrew University, Jerusalem, Israel
| | - Eldad Tzahor
- The Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel.
| | - Rachel Sarig
- The Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel.
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3
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Zhu C, Yuan T, Krishnan J. Targeting cardiomyocyte cell cycle regulation in heart failure. Basic Res Cardiol 2024; 119:349-369. [PMID: 38683371 PMCID: PMC11142990 DOI: 10.1007/s00395-024-01049-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 03/11/2024] [Accepted: 03/29/2024] [Indexed: 05/01/2024]
Abstract
Heart failure continues to be a significant global health concern, causing substantial morbidity and mortality. The limited ability of the adult heart to regenerate has posed challenges in finding effective treatments for cardiac pathologies. While various medications and surgical interventions have been used to improve cardiac function, they are not able to address the extensive loss of functioning cardiomyocytes that occurs during cardiac injury. As a result, there is growing interest in understanding how the cell cycle is regulated and exploring the potential for stimulating cardiomyocyte proliferation as a means of promoting heart regeneration. This review aims to provide an overview of current knowledge on cell cycle regulation and mechanisms underlying cardiomyocyte proliferation in cases of heart failure, while also highlighting established and novel therapeutic strategies targeting this area for treatment purposes.
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Affiliation(s)
- Chaonan Zhu
- Department of Medicine III, Cardiology/Angiology/Nephrology, Goethe University Hospital, 60590, Frankfurt am Main, Germany
- Institute for Cardiovascular Regeneration, Goethe University, 60590, Frankfurt am Main, Germany
| | - Ting Yuan
- Department of Medicine III, Cardiology/Angiology/Nephrology, Goethe University Hospital, 60590, Frankfurt am Main, Germany.
- Institute for Cardiovascular Regeneration, Goethe University, 60590, Frankfurt am Main, Germany.
- German Center for Cardiovascular Research, Partner Site Rhein-Main, 60590, Frankfurt am Main, Germany.
- Cardio-Pulmonary Institute, Goethe University Hospital, 60590, Frankfurt am Main, Germany.
| | - Jaya Krishnan
- Department of Medicine III, Cardiology/Angiology/Nephrology, Goethe University Hospital, 60590, Frankfurt am Main, Germany.
- Institute for Cardiovascular Regeneration, Goethe University, 60590, Frankfurt am Main, Germany.
- German Center for Cardiovascular Research, Partner Site Rhein-Main, 60590, Frankfurt am Main, Germany.
- Cardio-Pulmonary Institute, Goethe University Hospital, 60590, Frankfurt am Main, Germany.
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4
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Chen X, Wu H, Liu Y, Liu L, Houser SR, Wang WE. Metabolic Reprogramming: A Byproduct or a Driver of Cardiomyocyte Proliferation? Circulation 2024; 149:1598-1610. [PMID: 38739695 DOI: 10.1161/circulationaha.123.065880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Defining mechanisms of cardiomyocyte proliferation should guide the understanding of endogenous cardiac regeneration and could lead to novel treatments for diseases such as myocardial infarction. In the neonatal heart, energy metabolic reprogramming (phenotypic alteration of glucose, fatty acid, and amino acid metabolism) parallels cell cycle arrest of cardiomyocytes. The metabolic reprogramming occurring shortly after birth is associated with alterations in blood oxygen levels, metabolic substrate availability, hemodynamic stress, and hormone release. In the adult heart, myocardial infarction causes metabolic reprogramming but these changes cannot stimulate sufficient cardiomyocyte proliferation to replace those lost by the ischemic injury. Some putative pro-proliferative interventions can induce the metabolic reprogramming. Recent data show that altering the metabolic enzymes PKM2 [pyruvate kinase 2], LDHA [lactate dehydrogenase A], PDK4 [pyruvate dehydrogenase kinase 4], SDH [succinate dehydrogenase], CPT1b [carnitine palmitoyl transferase 1b], or HMGCS2 [3-hydroxy-3-methylglutaryl-CoA synthase 2] is sufficient to partially reverse metabolic reprogramming and promotes adult cardiomyocyte proliferation. How metabolic reprogramming regulates cardiomyocyte proliferation is not clearly defined. The possible mechanisms involve biosynthetic pathways from the glycolysis shunts and the epigenetic regulation induced by metabolic intermediates. Metabolic manipulation could represent a new approach to stimulate cardiac regeneration; however, the efficacy of these manipulations requires optimization, and novel molecular targets need to be defined. In this review, we summarize the features, triggers, and molecular regulatory networks responsible for metabolic reprogramming and discuss the current understanding of metabolic reprogramming as a critical determinant of cardiomyocyte proliferation.
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Affiliation(s)
- Xiaokang Chen
- Department of Geriatrics (X.C., H.W., Y.L., L.L., W.E.W.), Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
- Cardiovascular Center (X.C., H.W., Y.L., L.L., W.E.W.), Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Hao Wu
- Department of Geriatrics (X.C., H.W., Y.L., L.L., W.E.W.), Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
- Cardiovascular Center (X.C., H.W., Y.L., L.L., W.E.W.), Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Ya Liu
- Department of Geriatrics (X.C., H.W., Y.L., L.L., W.E.W.), Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
- Cardiovascular Center (X.C., H.W., Y.L., L.L., W.E.W.), Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Lingyan Liu
- Department of Geriatrics (X.C., H.W., Y.L., L.L., W.E.W.), Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
- Cardiovascular Center (X.C., H.W., Y.L., L.L., W.E.W.), Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Steven R Houser
- Independence Blue Cross Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA (S.R.H.)
| | - Wei Eric Wang
- Department of Geriatrics (X.C., H.W., Y.L., L.L., W.E.W.), Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
- Cardiovascular Center (X.C., H.W., Y.L., L.L., W.E.W.), Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
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5
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Yang X, Li L, Zeng C, Wang WE. The characteristics of proliferative cardiomyocytes in mammals. J Mol Cell Cardiol 2023; 185:50-64. [PMID: 37918322 DOI: 10.1016/j.yjmcc.2023.10.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 10/03/2023] [Accepted: 10/16/2023] [Indexed: 11/04/2023]
Abstract
Better understanding of the mechanisms regulating the proliferation of pre-existing cardiomyocyte (CM) should lead to better options for regenerating injured myocardium. The absence of a perfect research model to definitively identify newly formed mammalian CMs is lacking. However, methodologies are being developed to identify and enrich proliferative CMs. These methods take advantages of the different proliferative states of CMs during postnatal development, before and after injury in the neonatal heart. New approaches use CMs labeled in lineage tracing animals or single cell technique-based CM clusters. This review aims to provide a timely update on the characteristics of the proliferative CMs, including their structural, functional, genetic, epigenetic and metabolic characteristics versus non-proliferative CMs. A better understanding of the characteristics of proliferative CMs should lead to the mechanisms for inducing endogenous CMs to self-renew, which is a promising therapeutic strategy to treat cardiac diseases that cause CM death in humans.
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Affiliation(s)
- Xinyue Yang
- Department of Geriatrics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Liangpeng Li
- Department of Cardiology, Daping Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Chunyu Zeng
- Department of Cardiology, Daping Hospital, Third Military Medical University (Army Medical University), Chongqing, China.
| | - Wei Eric Wang
- Department of Geriatrics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, China.
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6
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Sun J, Wang L, Matthews RC, Walcott GP, Yu-An L, Wei Y, Zhou Y, Zangi L, Zhang J. CCND2 Modified mRNA Activates Cell Cycle of Cardiomyocytes in Hearts With Myocardial Infarction in Mice and Pigs. Circ Res 2023; 133:484-504. [PMID: 37565345 PMCID: PMC10529295 DOI: 10.1161/circresaha.123.322929] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 08/01/2023] [Indexed: 08/12/2023]
Abstract
BACKGROUND Experiments in mammalian models of cardiac injury suggest that the cardiomyocyte-specific overexpression of CCND2 (cyclin D2, in humans) improves recovery from myocardial infarction (MI). The primary objective of this investigation was to demonstrate that our specific modified mRNA translation system (SMRTs) can induce CCND2 expression in cardiomyocytes and replicate the benefits observed in other studies of cardiomyocyte-specific CCND2 overexpression for myocardial repair. METHODS The CCND2-cardiomyocyte-specific modified mRNA translation system (cardiomyocyte SMRTs) consists of 2 modRNA constructs: one codes for CCND2 and contains a binding site for L7Ae, and the other codes for L7Ae and contains recognition elements for the cardiomyocyte-specific microRNAs miR-1 and miR-208. Thus, L7Ae suppresses CCND2 translation in noncardiomyocytes but is itself suppressed by endogenous miR-1 and -208 in cardiomyocytes, thereby facilitating cardiomyocyte-specific CCND2 expression. Experiments were conducted in both mouse and pig models of MI, and control assessments were performed in animals treated with an SMRTs coding for the cardiomyocyte-specific expression of luciferase or green fluorescent protein (GFP), in animals treated with L7Ae modRNA alone or with the delivery vehicle, and in Sham-operated animals. RESULTS CCND2 was abundantly expressed in cultured, postmitotic cardiomyocytes 2 days after transfection with the CCND2-cardiomyocyte SMRTs, and the increase was accompanied by the upregulation of markers for cell-cycle activation and proliferation (eg, Ki67 and Aurora B kinase). When the GFP-cardiomyocyte SMRTs were intramyocardially injected into infarcted mouse hearts, the GFP signal was observed in cardiomyocytes but no other cell type. In both MI models, cardiomyocyte proliferation (on day 7 and day 3 after treatment administration in mice and pigs, respectively) was significantly greater, left-ventricular ejection fractions (days 7 and 28 in mice, days 10 and 28 in pigs) were significantly higher, and infarcts (day 28 in both species) were significantly smaller in animals treated with the CCND2-cardiomyocyte SMRTs than in any other group that underwent MI induction. CONCLUSIONS Intramyocardial injections of the CCND2-cardiomyocyte SMRTs promoted cardiomyocyte proliferation, reduced infarct size, and improved cardiac performance in small and large mammalian hearts with MI.
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Affiliation(s)
- Jiacheng Sun
- Department of Biomedical Engineering, School of Medicine, School of Engineering, University of Alabama at Birmingham
- These authors contributed equally to this work
| | - Lu Wang
- Department of Biomedical Engineering, School of Medicine, School of Engineering, University of Alabama at Birmingham
- These authors contributed equally to this work
| | - Rachel C. Matthews
- Department of Biomedical Engineering, School of Medicine, School of Engineering, University of Alabama at Birmingham
| | - Gregory P. Walcott
- Department of Biomedical Engineering, School of Medicine, School of Engineering, University of Alabama at Birmingham
- Department of Medicine, Division of Cardiovascular Disease, School of Medicine, University of Alabama at Birmingham
| | - Lu Yu-An
- Department of Biomedical Engineering, School of Medicine, School of Engineering, University of Alabama at Birmingham
| | - Yuhua Wei
- Department of Biomedical Engineering, School of Medicine, School of Engineering, University of Alabama at Birmingham
| | - Yang Zhou
- Department of Biomedical Engineering, School of Medicine, School of Engineering, University of Alabama at Birmingham
| | - Lior Zangi
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA, 10029
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA, 10029
- Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA, 10029
| | - Jianyi Zhang
- Department of Biomedical Engineering, School of Medicine, School of Engineering, University of Alabama at Birmingham
- Department of Medicine, Division of Cardiovascular Disease, School of Medicine, University of Alabama at Birmingham
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Kasamoto M, Funakoshi S, Hatani T, Okubo C, Nishi Y, Tsujisaka Y, Nishikawa M, Narita M, Ohta A, Kimura T, Yoshida Y. Am80, a retinoic acid receptor agonist, activates the cardiomyocyte cell cycle and enhances engraftment in the heart. Stem Cell Reports 2023; 18:1672-1685. [PMID: 37451261 PMCID: PMC10444569 DOI: 10.1016/j.stemcr.2023.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 06/12/2023] [Accepted: 06/13/2023] [Indexed: 07/18/2023] Open
Abstract
Human induced pluripotent stem cell-derived (hiPSC) cardiomyocytes are a promising source for regenerative therapy. To realize this therapy, however, their engraftment potential after their injection into the host heart should be improved. Here, we established an efficient method to analyze the cell cycle activity of hiPSC cardiomyocytes using a fluorescence ubiquitination-based cell cycle indicator (FUCCI) system. In vitro high-throughput screening using FUCCI identified a retinoic acid receptor (RAR) agonist, Am80, as an effective cell cycle activator in hiPSC cardiomyocytes. The transplantation of hiPSC cardiomyocytes treated with Am80 before the injection significantly enhanced the engraftment in damaged mouse heart for 6 months. Finally, we revealed that the activation of endogenous Wnt pathways through both RARA and RARB underlies the Am80-mediated cell cycle activation. Collectively, this study highlights an efficient method to activate cell cycle in hiPSC cardiomyocytes by Am80 as a means to increase the graft size after cell transplantation into a damaged heart.
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Affiliation(s)
- Manabu Kasamoto
- Centre for iPS Cell Research and Application, Kyoto University, Kyoto, Japan; Department of Cardiovascular Medicine, Kyoto University Hospital, Kyoto, Japan
| | - Shunsuke Funakoshi
- Centre for iPS Cell Research and Application, Kyoto University, Kyoto, Japan; Takeda-CiRA Joint program (T-CiRA), Fujisawa, Japan.
| | - Takeshi Hatani
- Centre for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Chikako Okubo
- Centre for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Yohei Nishi
- Centre for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Yuta Tsujisaka
- Centre for iPS Cell Research and Application, Kyoto University, Kyoto, Japan; Department of Cardiovascular Medicine, Kyoto University Hospital, Kyoto, Japan
| | - Misato Nishikawa
- Centre for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Megumi Narita
- Centre for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Akira Ohta
- Centre for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Takeshi Kimura
- Department of Cardiovascular Medicine, Kyoto University Hospital, Kyoto, Japan
| | - Yoshinori Yoshida
- Centre for iPS Cell Research and Application, Kyoto University, Kyoto, Japan; Takeda-CiRA Joint program (T-CiRA), Fujisawa, Japan.
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Gladka MM, Johansen AKZ, van Kampen SJ, Peters MMC, Molenaar B, Versteeg D, Kooijman L, Zentilin L, Giacca M, van Rooij E. Thymosin β4 and prothymosin α promote cardiac regeneration post-ischaemic injury in mice. Cardiovasc Res 2023; 119:802-812. [PMID: 36125329 PMCID: PMC10153422 DOI: 10.1093/cvr/cvac155] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 07/12/2022] [Accepted: 08/09/2022] [Indexed: 11/13/2022] Open
Abstract
AIMS The adult mammalian heart is a post-mitotic organ. Even in response to necrotic injuries, where regeneration would be essential to reinstate cardiac structure and function, only a minor percentage of cardiomyocytes undergo cytokinesis. The gene programme that promotes cell division within this population of cardiomyocytes is not fully understood. In this study, we aimed to determine the gene expression profile of proliferating adult cardiomyocytes in the mammalian heart after myocardial ischaemia, to identify factors to can promote cardiac regeneration. METHODS AND RESULTS Here, we demonstrate increased 5-ethynyl-2'deoxyuridine incorporation in cardiomyocytes 3 days post-myocardial infarction in mice. By applying multi-colour lineage tracing, we show that this is paralleled by clonal expansion of cardiomyocytes in the borderzone of the infarcted tissue. Bioinformatic analysis of single-cell RNA sequencing data from cardiomyocytes at 3 days post ischaemic injury revealed a distinct transcriptional profile in cardiomyocytes expressing cell cycle markers. Combinatorial overexpression of the enriched genes within this population in neonatal rat cardiomyocytes and mice at postnatal day 12 (P12) unveiled key genes that promoted increased cardiomyocyte proliferation. Therapeutic delivery of these gene cocktails into the myocardial wall after ischaemic injury demonstrated that a combination of thymosin beta 4 (TMSB4) and prothymosin alpha (PTMA) provide a permissive environment for cardiomyocyte proliferation and thereby attenuated cardiac dysfunction. CONCLUSION This study reveals the transcriptional profile of proliferating cardiomyocytes in the ischaemic heart and shows that overexpression of the two identified factors, TMSB4 and PTMA, can promote cardiac regeneration. This work indicates that in addition to activating cardiomyocyte proliferation, a supportive environment is a key for regeneration to occur.
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Affiliation(s)
- Monika M Gladka
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, The Netherlands
| | - Anne Katrine Z Johansen
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, The Netherlands
| | - Sebastiaan J van Kampen
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, The Netherlands
| | - Marijn M C Peters
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, The Netherlands
- Department of Cardiology, Regenerative Medicine Center Utrecht, University Medical Center Utrecht, The Netherlands
| | - Bas Molenaar
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, The Netherlands
| | - Danielle Versteeg
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, The Netherlands
| | - Lieneke Kooijman
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, The Netherlands
| | - Lorena Zentilin
- AAV Vector Unit, International Centre for Genetic Engineering and Biotechnology (ICGEB), Trieste, Italy
| | - Mauro Giacca
- School of Cardiovascular Medicine and Science, King’s College London, London, United Kingdom
| | - Eva van Rooij
- Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center Utrecht, The Netherlands
- Department of Cardiology, Regenerative Medicine Center Utrecht, University Medical Center Utrecht, The Netherlands
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9
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Ivanova VV, Milto IV, Serebryakova ON, Sukhodolo IV. Effect of preterm birth in rats on proliferation and hyperplasia of cardiomyocytes. BULLETIN OF SIBERIAN MEDICINE 2023. [DOI: 10.20538/1682-0363-2022-4-72-78] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Aim. To identify the effect of preterm birth on proliferation and hyperplasia of cardiomyocytes in the early postnatal period of ontogenesis in rats.Materials and methods. Preterm birth (on day 21 and 21.5 of gestation) in Wistar rats was induced by subcutaneous administration of mifepristone. Immunohistochemistry was used to identify and calculate the number of Ki67-positive and Mklp2-positive cardiomyocytes in the left ventricle of preterm and full-term rats on days 1, 2, 3, 4, 5, and 6 of postnatal ontogenesis. Statistical analysis of morphometric parameters was performed using the Shapiro – Wilk test and Mann – Whitney test with the Bonferroni correction.Results. We revealed an increase in the number of Ki67-positive cardiomyocytes in the left ventricle of the rats: on day 1 of postnatal ontogenesis (in the rats born on day 21 of gestation) and on days 3–5 of postnatal ontogenesis (in the rats born on day 21.5 of gestation). Preterm birth in rats did not result in a change in the number of Mklp2-positive cardiomyocytes in the left ventricular wall.Conclusion. A change in the pattern of Ki67 expression by cardiomyocytes in the rats born 12 or 24 hours before full term was demonstrated in the early postnatal period of ontogenesis. An isolated increase in Ki67 expression without a change in Mklp2 expression by cardiomyocytes in the left ventricular wall of preterm rats indicates acceleration of cardiomyocyte hypertrophy. Shorter duration of prenatal development is associated with more pronounced morphological and functional rearrangements in the rat myocardium.
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Affiliation(s)
| | - I. V. Milto
- Siberian State Medical University;
Seversk Biophysical Research Center
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10
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Costa A, Balbi C, Garbati P, Palamà MEF, Reverberi D, De Palma A, Rossi R, Paladini D, Coviello D, De Biasio P, Ceresa D, Malatesta P, Mauri P, Quarto R, Gentili C, Barile L, Bollini S. Investigating the Paracrine Role of Perinatal Derivatives: Human Amniotic Fluid Stem Cell-Extracellular Vesicles Show Promising Transient Potential for Cardiomyocyte Renewal. Front Bioeng Biotechnol 2022; 10:902038. [PMID: 35757808 PMCID: PMC9214211 DOI: 10.3389/fbioe.2022.902038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 04/27/2022] [Indexed: 11/15/2022] Open
Abstract
Cardiomyocyte renewal represents an unmet clinical need for cardiac regeneration. Stem cell paracrine therapy has attracted increasing attention to resurge rescue mechanisms within the heart. We previously characterized the paracrine effects that human amniotic fluid–derived stem cells (hAFSC) can exert to provide cardioprotection and enhance cardiac repair in preclinical models of myocardial ischemia and cardiotoxicity. Here, we analyze whether hAFSC secretome formulations, namely, hAFSC conditioned medium (hAFSC-CM) over extracellular vesicles (hAFSC-EVs) separated from it, can induce cardiomyocyte renewal. c-KIT+ hAFSC were obtained by leftover samples of II trimester prenatal amniocentesis (fetal hAFSC) and from clinical waste III trimester amniotic fluid during scheduled C-section procedures (perinatal hAFSC). hAFSC were primed under 1% O2 to enrich hAFSC-CM and EVs with cardioactive factors. Neonatal mouse ventricular cardiomyocytes (mNVCM) were isolated from cardiac tissue of R26pFUCCI2 mice with cell cycle fluorescent tagging by mutually exclusive nuclear signal. mNVCM were stimulated by fetal versus perinatal hAFSC-CM and hAFSC-EVs to identify the most promising formulation for in vivo assessment in a R26pFUCCI2 neonatal mouse model of myocardial infarction (MI) via intraperitoneal delivery. While the perinatal hAFSC secretome did not provide any significant cardiogenic effect, fetal hAFSC-EVs significantly sustained mNVCM transition from S to M phase by 2-fold, while triggering cytokinesis by 4.5-fold over vehicle-treated cells. Treated mNVCM showed disorganized expression of cardiac alpha-actinin, suggesting cytoskeletal re-arrangements prior to cell renewal, with a 40% significant downregulation of Cofilin-2 and a positive trend of polymerized F-Actin. Fetal hAFSC-EVs increased cardiomyocyte cell cycle progression by 1.8-fold in the 4-day-old neonatal left ventricle myocardium short term after MI; however, such effect was lost at the later stage. Fetal hAFSC-EVs were enriched with a short isoform of Agrin, a mediator of neonatal heart regeneration acting by YAP-related signaling; yet in vitro application of YAP inhibitor verteporfin partially affected EV paracrine stimulation on mNVCM. EVs secreted by developmentally juvenile fetal hAFSC can support cardiomyocyte renewal to some extension, via intercellular conveyance of candidates possibly involving Agrin in combination with other factors. These perinatal derivative promising cardiogenic effects need further investigation to define their specific mechanism of action and enhance their potential translation into therapeutic opportunity.
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Affiliation(s)
- Ambra Costa
- Experimental Biology Unit, Department of Experimental Medicine (DIMES), University of Genova, Genova, Italy
| | - Carolina Balbi
- Laboratory of Cellular and Molecular Cardiology, Istituto Cardiocentro Ticino, Ente Ospedaliero Cantonale, Lugano, Switzerland.,Center for Molecular Cardiology, University of Zurich, Zurich, Switzerland.,Laboratories for Translational Research, Ente Ospedaliero Cantonale, Bellinzona, Switzerland
| | - Patrizia Garbati
- Experimental Biology Unit, Department of Experimental Medicine (DIMES), University of Genova, Genova, Italy
| | | | - Daniele Reverberi
- Molecular Pathology Unit, IRCCS Ospedale Policlinico San Martino, Genova, Italy
| | - Antonella De Palma
- Proteomics and Metabolomics Unit, Institute for Biomedical Technologies (ITB-CNR), Milan, Italy
| | - Rossana Rossi
- Proteomics and Metabolomics Unit, Institute for Biomedical Technologies (ITB-CNR), Milan, Italy
| | - Dario Paladini
- Fetal Medicine and Surgery Unit, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - Domenico Coviello
- Laboratory of Human Genetics, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - Pierangela De Biasio
- Prenatal Diagnosis Perinatal Medicine Unit, IRCCS Ospedale Policlinico San Martino, Genova, Italy
| | - Davide Ceresa
- Cellular Oncology Unit, IRCCS Ospedale Policlinico San Martino, Genova, Italy
| | - Paolo Malatesta
- Experimental Biology Unit, Department of Experimental Medicine (DIMES), University of Genova, Genova, Italy.,Cellular Oncology Unit, IRCCS Ospedale Policlinico San Martino, Genova, Italy
| | - Pierluigi Mauri
- Proteomics and Metabolomics Unit, Institute for Biomedical Technologies (ITB-CNR), Milan, Italy
| | - Rodolfo Quarto
- Experimental Biology Unit, Department of Experimental Medicine (DIMES), University of Genova, Genova, Italy.,Cellular Oncology Unit, IRCCS Ospedale Policlinico San Martino, Genova, Italy
| | - Chiara Gentili
- Experimental Biology Unit, Department of Experimental Medicine (DIMES), University of Genova, Genova, Italy
| | - Lucio Barile
- Laboratories for Translational Research, Ente Ospedaliero Cantonale, Bellinzona, Switzerland.,Laboratory for Cardiovascular Theranostics, Istituto Cardiocentro Ticino, Ente Ospedaliero Cantonale, Lugano, Switzerland.,Faculty of Biomedical Sciences, Università Svizzera Italiana, Lugano, Switzerland
| | - Sveva Bollini
- Experimental Biology Unit, Department of Experimental Medicine (DIMES), University of Genova, Genova, Italy
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11
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Murganti F, Derks W, Baniol M, Simonova I, Trus P, Neumann K, Khattak S, Guan K, Bergmann O. FUCCI-Based Live Imaging Platform Reveals Cell Cycle Dynamics and Identifies Pro-proliferative Compounds in Human iPSC-Derived Cardiomyocytes. Front Cardiovasc Med 2022; 9:840147. [PMID: 35548410 PMCID: PMC9081338 DOI: 10.3389/fcvm.2022.840147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 03/16/2022] [Indexed: 01/23/2023] Open
Abstract
One of the major goals in cardiac regeneration research is to replace lost ventricular tissue with new cardiomyocytes. However, cardiomyocyte proliferation drops to low levels in neonatal hearts and is no longer efficient in compensating for the loss of functional myocardium in heart disease. We generated a human induced pluripotent stem cell (iPSC)-derived cardiomyocyte-specific cell cycle indicator system (TNNT2-FUCCI) to characterize regular and aberrant cardiomyocyte cycle dynamics. We visualized cell cycle progression in TNNT2-FUCCI and found G2 cycle arrest in endoreplicating cardiomyocytes. Moreover, we devised a live-cell compound screening platform to identify pro-proliferative drug candidates. We found that the alpha-adrenergic receptor agonist clonidine induced cardiomyocyte proliferation in vitro and increased cardiomyocyte cell cycle entry in neonatal mice. In conclusion, the TNNT2-FUCCI system is a versatile tool to characterize cardiomyocyte cell cycle dynamics and identify pro-proliferative candidates with regenerative potential in the mammalian heart.
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Affiliation(s)
| | - Wouter Derks
- Center for Regenerative Therapies Dresden, TU Dresden, Dresden, Germany
| | - Marion Baniol
- Karolinska Institute, Cell and Molecular Biology (CMB), Stockholm, Sweden
| | - Irina Simonova
- Center for Regenerative Therapies Dresden, TU Dresden, Dresden, Germany
| | - Palina Trus
- Center for Regenerative Therapies Dresden, TU Dresden, Dresden, Germany
| | - Katrin Neumann
- Center for Regenerative Therapies Dresden, TU Dresden, Dresden, Germany
| | - Shahryar Khattak
- Center for Regenerative Therapies Dresden, TU Dresden, Dresden, Germany
- Royal College of Surgeons Ireland (RCSI) in Bahrain, Adliya, Bahrain
| | - Kaomei Guan
- Institute of Pharmacology and Toxicology, TU Dresden, Dresden, Germany
| | - Olaf Bergmann
- Center for Regenerative Therapies Dresden, TU Dresden, Dresden, Germany
- Karolinska Institute, Cell and Molecular Biology (CMB), Stockholm, Sweden
- *Correspondence: Olaf Bergmann
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12
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Duerr TJ, Jeon EK, Wells KM, Villanueva A, Seifert AW, McCusker CD, Monaghan JR. A constitutively expressed fluorescent ubiquitination-based cell-cycle indicator (FUCCI) in axolotls for studying tissue regeneration. Development 2022; 149:dev199637. [PMID: 35266986 PMCID: PMC8977096 DOI: 10.1242/dev.199637] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 02/18/2022] [Indexed: 01/29/2023]
Abstract
Regulation of cell cycle progression is essential for cell proliferation during regeneration following injury. After appendage amputation, the axolotl (Ambystoma mexicanum) regenerates missing structures through an accumulation of proliferating cells known as the blastema. To study cell division during blastema growth, we generated a transgenic line of axolotls that ubiquitously expresses a bicistronic version of the fluorescent ubiquitination-based cell-cycle indicator (FUCCI). We demonstrate near-ubiquitous FUCCI expression in developing and adult tissues, and validate these expression patterns with DNA synthesis and mitosis phase markers. We demonstrate the utility of FUCCI for live and whole-mount imaging, showing the predominantly local contribution of cells during limb and tail regeneration. We also show that spinal cord amputation results in increased proliferation at least 5 mm from the site of injury. Finally, we use multimodal staining to provide cell type information for cycling cells by combining fluorescence in situ hybridization, EdU click-chemistry and immunohistochemistry on a single FUCCI tissue section. This new line of animals will be useful for studying cell cycle dynamics using in situ endpoint assays and in vivo imaging in developing and regenerating animals.
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Affiliation(s)
- Timothy J. Duerr
- Northeastern University, Department of Biology, Boston, MA 02115, USA
| | - Eun Kyung Jeon
- Northeastern University, Department of Biology, Boston, MA 02115, USA
| | - Kaylee M. Wells
- University of Massachusetts Boston, Department of Biology, Boston, MA 02125, USA
| | | | - Ashley W. Seifert
- University of Kentucky, Department of Biology, Lexington, KY 40506, USA
| | | | - James R. Monaghan
- Northeastern University, Department of Biology, Boston, MA 02115, USA
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13
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In Vivo Methods to Monitor Cardiomyocyte Proliferation. J Cardiovasc Dev Dis 2022; 9:jcdd9030073. [PMID: 35323621 PMCID: PMC8950582 DOI: 10.3390/jcdd9030073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 02/28/2022] [Accepted: 03/01/2022] [Indexed: 12/07/2022] Open
Abstract
Adult mammalian cardiomyocytes demonstrate scarce cycling and even lower proliferation rates in response to injury. Signals that enhance cardiomyocyte proliferation after injury will be groundbreaking, address unmet clinical needs, and represent new strategies to treat cardiovascular diseases. In vivo methods to monitor cardiomyocyte proliferation are critical to addressing this challenge. Fortunately, advances in transgenic approaches provide sophisticated techniques to quantify cardiomyocyte cycling and proliferation.
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14
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Brandt EB, Mahmoud AI. Quantifying Cardiomyocyte Proliferation and Nucleation to Assess Mammalian Cardiac Regeneration. Methods Mol Biol 2022; 2485:243-253. [PMID: 35618910 DOI: 10.1007/978-1-0716-2261-2_16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Neonatal mice display a remarkable ability to regenerate their heart following an injury during the first week of life. A key facet of successful cardiac regeneration is the proliferation of cardiomyocytes to replace the lost cells. Stimulating cardiomyocyte proliferation in the adult heart is a very promising approach to restore cardiac structure and function following injury. Here, we outline our approach to assess cardiomyocyte proliferation following a myocardial injury via the cell cycle markers phospho-histone H3 and Aurora B. We additionally discuss how we assess successful regeneration using wheat germ agglutinin to measure cardiomyocyte size, nuclear staining to quantify cardiomyocyte nucleation, and Trichrome staining to identify myocardial regeneration and scarring in the myocardium.
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Affiliation(s)
- Emma B Brandt
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, USA
| | - Ahmed I Mahmoud
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, USA.
- University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, USA.
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15
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Chen ZT, Gao QY, Wu MX, Wang M, Sun RL, Jiang Y, Guo Q, Guo DC, Liu CY, Chen SX, Liu X, Wang JF, Zhang HF, Chen YX. Glycolysis Inhibition Alleviates Cardiac Fibrosis After Myocardial Infarction by Suppressing Cardiac Fibroblast Activation. Front Cardiovasc Med 2021; 8:701745. [PMID: 34660710 PMCID: PMC8511672 DOI: 10.3389/fcvm.2021.701745] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 09/07/2021] [Indexed: 12/30/2022] Open
Abstract
Objective: To explore the role of glycolysis in cardiac fibroblast (CF) activation and cardiac fibrosis after myocardial infarction (MI). Method:In vivo: 2-Deoxy-D-glucose (2-DG), a glycolysis inhibitor, was injected into the abdominal cavity of the MI or sham mice every day. On the 28th day, cardiac function was measured by ultrasonic cardiography, and the hearts were harvested. Masson staining and immunofluorescence (IF) were used to evaluate the fibrosis area, and western blot was used to identify the glycolytic level. In vitro, we isolated the CF from the sham, MI and MI with 2-DG treatment mice, and we also activated normal CF with transforming growth factor-β1 (TGF-β1) and block glycolysis with 2-DG. We then detected the glycolytic proteins, fibrotic proteins, and the concentrations of lactate and glucose in the culture medium. At last, we further detected the fibrotic and glycolytic markers in human fibrotic and non-fibrotic heart tissues with masson staining, IF and western blot. Result: More collagen and glycolytic protein expressions were observed in the MI mice hearts. The mortality increased when mice were treated with 2-DG (100 mg/kg/d) after the MI surgery (Log-rank test, P < 0.05). When the dosage of 2-DG declined to 50 mg/kg/d, and the treatment was started on the 4th day after MI, no statistical difference of mortality between the two groups was observed (Log-rank test, P = 0.98). The collagen volume fraction was smaller and the fluorescence signal of α-smooth muscle actin (α-SMA) was weaker in mice treated with 2-DG than PBS. In vitro, 2-DG could significantly inhibit the increased expression of both the glycolytic and fibrotic proteins in the activated CF. Conclusion: Cardiac fibrosis is along with the enhancement of CF activation and glycolysis. Glycolysis inhibition can alleviate cardiac fibroblast activation and cardiac fibrosis after myocardial infarction.
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Affiliation(s)
- Zhi-Teng Chen
- Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, China
| | - Qing-Yuan Gao
- Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, China
| | - Mao-Xiong Wu
- Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, China
| | - Meng Wang
- Department of Cardiovascular Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Run-Lu Sun
- Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, China
| | - Yuan Jiang
- Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, China
| | - Qi Guo
- Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, China
| | - Da-Chuan Guo
- Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, China
| | - Chi-Yu Liu
- Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, China
| | - Si-Xu Chen
- Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, China
| | - Xiao Liu
- Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, China
| | - Jing-Feng Wang
- Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, China
| | - Hai-Feng Zhang
- Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, China
| | - Yang-Xin Chen
- Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Guangzhou Key Laboratory of Molecular Mechanism and Translation in Major Cardiovascular Disease, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Laboratory of Cardiac Electrophysiology and Arrhythmia in Guangdong Province, Guangzhou, China
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16
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Echeagaray O, Kim T, Casillas A, Monsanto M, Sussman M. Transcriptional features of biological age maintained in human cultured cardiac interstitial cells. Genomics 2021; 113:3705-3717. [PMID: 34509618 DOI: 10.1016/j.ygeno.2021.09.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 09/03/2021] [Accepted: 09/07/2021] [Indexed: 02/03/2023]
Abstract
Ex vivo expansion of cells is necessary in regenerative medicine to generate large populations for therapeutic use. Adaptation to culture conditions prompt an increase in transcriptome diversity and decreased population heterogeneity in cKit+ cardiac interstitial cells (cCICs). The "transcriptional memory" influenced by cellular origin remained unexplored and is likely to differ between neonatal versus senescent input cells undergoing culture expansion. Transcriptional profiles derived from single cell RNASEQ platforms characterized human cCIC derived from neonatal and adult source tissue. Bioinformatic analysis revealed contrasting imprint of age influencing targets of 1) cell cycle, 2) senescence associated secretory phenotype (SASP), 3) RNA transport, and 4) ECM-receptor/fibrosis. A small subset of cCICs exist in a transcriptional continuum between "youthful" phenotype and the damaged microenvironment of LVAD tissue in which they were embedded. The connate transcriptional phenotypes offer fundamental biological insight and highlights cellular input as a consideration in culture expansion and adoptive transfer protocols.
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Affiliation(s)
- Oscar Echeagaray
- San Diego Heart Research Institute and Integrated Regenerative Research Institute, San Diego State University, San Diego, CA 92182-4650, USA
| | - Taeyong Kim
- San Diego Heart Research Institute and Integrated Regenerative Research Institute, San Diego State University, San Diego, CA 92182-4650, USA
| | - Alex Casillas
- San Diego Heart Research Institute and Integrated Regenerative Research Institute, San Diego State University, San Diego, CA 92182-4650, USA
| | - Megan Monsanto
- San Diego Heart Research Institute and Integrated Regenerative Research Institute, San Diego State University, San Diego, CA 92182-4650, USA
| | - Mark Sussman
- San Diego Heart Research Institute and Integrated Regenerative Research Institute, San Diego State University, San Diego, CA 92182-4650, USA.
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17
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Johnson J, Mohsin S, Houser SR. Cardiomyocyte Proliferation as a Source of New Myocyte Development in the Adult Heart. Int J Mol Sci 2021; 22:ijms22157764. [PMID: 34360531 PMCID: PMC8345975 DOI: 10.3390/ijms22157764] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/18/2021] [Accepted: 07/18/2021] [Indexed: 02/06/2023] Open
Abstract
Cardiac diseases such as myocardial infarction (MI) can lead to adverse remodeling and impaired contractility of the heart due to widespread cardiomyocyte death in the damaged area. Current therapies focus on improving heart contractility and minimizing fibrosis with modest cardiac regeneration, but MI patients can still progress to heart failure (HF). There is a dire need for clinical therapies that can replace the lost myocardium, specifically by the induction of new myocyte formation from pre-existing cardiomyocytes. Many studies have shown terminally differentiated myocytes can re-enter the cell cycle and divide through manipulations of the cardiomyocyte cell cycle, signaling pathways, endogenous genes, and environmental factors. However, these approaches result in minimal myocyte renewal or cardiomegaly due to hyperactivation of cardiomyocyte proliferation. Finding the optimal treatment that will replenish cardiomyocyte numbers without causing tumorigenesis is a major challenge in the field. Another controversy is the inability to clearly define cardiomyocyte division versus myocyte DNA synthesis due to limited methods. In this review, we discuss several studies that induced cardiomyocyte cell cycle re-entry after cardiac injury, highlight whether cardiomyocytes completed cytokinesis, and address both limitations and methodological advances made to identify new myocyte formation.
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18
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Induced Cardiomyocyte Proliferation: A Promising Approach to Cure Heart Failure. Int J Mol Sci 2021; 22:ijms22147720. [PMID: 34299340 PMCID: PMC8303201 DOI: 10.3390/ijms22147720] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/12/2021] [Accepted: 07/15/2021] [Indexed: 12/31/2022] Open
Abstract
Unlike some lower vertebrates which can completely regenerate their heart, the human heart is a terminally differentiated organ. Cardiomyocytes lost during cardiac injury and heart failure cannot be replaced due to their limited proliferative capacity. Therefore, cardiac injury generally leads to progressive failure. Here, we summarize the latest progress in research on methods to induce cardiomyocyte cell cycle entry and heart repair through the alteration of cardiomyocyte plasticity, which is emerging as an effective strategy to compensate for the loss of functional cardiomyocytes and improve the impaired heart functions.
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19
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de Barros Sene L, Lamana GL, Schwambach Vieira A, Scarano WR, Gontijo JAR, Boer PA. Gestational Low Protein Diet Modulation on miRNA Transcriptome and Its Target During Fetal and Breastfeeding Nephrogenesis. Front Physiol 2021; 12:648056. [PMID: 34239447 PMCID: PMC8258388 DOI: 10.3389/fphys.2021.648056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 04/22/2021] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND The kidney ontogenesis is the most structurally affected by gestational protein restriction, reducing 28% of their functional units. The reduced nephron number is predictive of hypertension and cardiovascular dysfunctions that are generally observed in the adult age of most fetal programming models. We demonstrate miRNAs and predict molecular pathway changes associated with reduced reciprocal interaction between metanephros cap (CM) and ureter bud (UB) and a 28% decreased nephron stem cells in the 17 gestational days (17GD) low protein (LP) intake male fetal kidney. Here, we evaluated the same miRNAs and predicted targets in the kidneys of 21GD and at 7 days of life (7DL) LP offspring to elucidate the molecular modulations during nephrogenesis. METHODS Pregnant Wistar rats were allocated into two groups: NP (regular protein diet- 17%) or LP (diet-6%). miRNA transcriptome sequencing (miRNA-Seq) was performed on the MiSeq platform from 21GD and 7DL male offspring kidneys using previously described methods. Among the top 10 dysfunctional regulated miRNAs, we validated 7 related to proliferation, differentiation, and apoptosis processes and investigated predicted target genes and proteins by RT-qPCR and immunohistochemistry. RESULTS In 21GD, LP fetuses were identified alongside 21 differently expressed miRNAs, of which 12 were upregulated and 9 downregulated compared to age-matched NP offspring. In 7-DL LP offspring, the differentially expressed miRNAs were counted to be 74, of which 46 were upregulated and 28 downregulated. The curve from 17-GD to 7-DL shows that mTOR was fundamental in reducing the number of nephrons in fetal kidneys where the mothers were subjected to a protein restriction. IGF1 and TGFβ curves also seemed to present the same mTOR pattern and were modulated by miRNAs 181a-5p, 181a-3p, and 199a-5p. The miRNA 181c-3p modulated SIX2 and Notch1 reduction in 7-DL but not in terms of the enhanced expression of both in the 21-GD, suggesting the participation of an additional regulator. We found enhanced Bax in 21-GD; it was regulated by miRNA 298-5p, and Bcl2 and Caspase-3 were controlled by miRNA (by 7a-5p and not by the predicted 181a-5p). The miRNA 144-3p regulated BCL6, which was enhanced, as well as Zeb 1 and 2 induced by BCL6. These results revealed that in 21GD, the compensatory mechanisms in LP kidneys led to the activation of UB ramification. Besides, an increase of 32% in the CM stem cells and a possible cell cycle halt of renal progenitor cells, which remaining undifferentiated, were observed. In the 7DL, much more altered miRNA expression was found in LP kidneys, and this was probably due to an increased maternal diet content. Additionally, we verified the activation of pathways related to differentiation and consumption of progenitor cells.
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Affiliation(s)
- Letícia de Barros Sene
- Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, Brazil
| | - Gabriela Leme Lamana
- Fetal Programming and Hydroelectrolyte Metabolism Laboratory, Nucleus of Medicine and Experimental Surgery, Department of Internal Medicine, FCM, Campinas, Brazil
| | - Andre Schwambach Vieira
- Department of Structural and Functional Biology, Biology Institute, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Wellerson Rodrigo Scarano
- Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, Brazil
| | - José Antônio Rocha Gontijo
- Fetal Programming and Hydroelectrolyte Metabolism Laboratory, Nucleus of Medicine and Experimental Surgery, Department of Internal Medicine, FCM, Campinas, Brazil
| | - Patrícia Aline Boer
- Fetal Programming and Hydroelectrolyte Metabolism Laboratory, Nucleus of Medicine and Experimental Surgery, Department of Internal Medicine, FCM, Campinas, Brazil
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20
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Tomura M, Ikebuchi R, Moriya T, Kusumoto Y. Tracking the fate and migration of cells in live animals with cell-cycle indicators and photoconvertible proteins. J Neurosci Methods 2021; 355:109127. [PMID: 33722643 DOI: 10.1016/j.jneumeth.2021.109127] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 03/05/2021] [Accepted: 03/07/2021] [Indexed: 12/13/2022]
Abstract
Cell migration and cell proliferation are the basic principles that make up a living organism, and both biologically and medically. In order to understand living organism and biological phenomena, it is essential to track the migration, proliferation, and fate of cells in living cells and animals and to clarify the properties and molecular expression of cells. Recent developments in novel fluorescent proteins have made it possible to observe cell migration and proliferation as the cell cycle at the single-cell level in living individuals and tissues. Here, we introduce cell cycle visualization of living cells and animals by Fucci (Fluorescent Ubiquitination-based Cell Cycle Indicator) system and in situ cell labeling of cells and tracking cell migration by photoactivatable and photoconvertible proteins. In addition, we will present our established methods as an example of combines above tools with single-cell molecular expression analysis to reveal the fate of migrating cells at single cell level.
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Affiliation(s)
- Michio Tomura
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Tondabayashi, Osaka 584-8540, Japan.
| | - Ryoyo Ikebuchi
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Tondabayashi, Osaka 584-8540, Japan; Research Fellow of Japan Society for the Promotion of Science, Japan; Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Taiki Moriya
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Tondabayashi, Osaka 584-8540, Japan
| | - Yutaka Kusumoto
- Laboratory of Immunology, Faculty of Pharmacy, Osaka Ohtani University, Tondabayashi, Osaka 584-8540, Japan
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21
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Bradley LA, Young A, Li H, Billcheck HO, Wolf MJ. Loss of Endogenously Cycling Adult Cardiomyocytes Worsens Myocardial Function. Circ Res 2021; 128:155-168. [PMID: 33146578 DOI: 10.1161/circresaha.120.318277] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
RATIONALE Endogenously cycling adult cardiomyocytes increase after myocardial infarction (MI) but remain scarce and are generally thought not to contribute to myocardial function. However, this broadly held assumption has not been tested, mainly because of the lack of transgenic reporters that restrict Cre expression to adult cardiomyocytes that reenter the cell cycle. OBJECTIVE We created and validated a new transgenic mouse, αMHC (alpha myosin heavy chain)-MerDreMer-Ki67p-RoxedCre (denoted αDKRC [cardiomyocyte-specific αMHC-MerDreMer-Ki67p-RoxedCre]) that restricts Cre expression to cycling adult cardiomyocytes and uniquely integrates spatial and temporal adult cardiomyocyte cycling events based on the DNA specificities of orthologous Dre and Cre recombinases. We then created αDKRC::DTA mice that expressed an inducible diphtheria toxin in adult cycling cardiomyocytes and examined the effects of ablating these endogenously cycling cardiomyocytes on myocardial function after ischemic-reperfusion (I/R) MI. METHODS AND RESULTS A tandem αDKRC transgene was designed, validated in cultured cells, and used to make transgenic mice. The αDKRC transgene integrated between MYH6 and MYH7 and did not disrupt expression of the surrounding genes. Compared with controls, αDKRC::RLTG (Rox-Lox-tdTomato-eGFP) mice treated with Tamoxifen expressed tdTomato+ in cardiomyocytes with rare Bromodeoxyuridine+, eGFP+ cardiomyocytes, consistent with reentry of the cell cycle. We then pretreated αDKRC::RLTG mice with Tamoxifen to activate the reporter before sham or reperfusion (I/R) MI surgeries. Compared with Sham surgery, the I/R MI group had increased single and paired eGFP+ (enhanced green fluorescent protein)+ cardiomyocytes predominantly in the border zones (5.8±0.5 versus 3.3±0.3 cardiomyocytes per 10-micron section, N=8-9 mice per group, n=16-24 sections per mouse), indicative of cycled cardiomyocytes. The single to paired eGFP+ cardiomyocyte ratio was ≈9 to 1 (5.2±0.4 single versus 0.6±0.2 paired cardiomyocytes) in the I/R MI group after MI, suggesting that cycling cardiomyocytes were more likely to undergo polyploidy than replication. The ablation of endogenously cycling adult cardiomyocytes in αDKRC::DTA (diphtheria) mice caused progressive worsening left ventricular chamber size and function after I/R MI, compared with controls. CONCLUSIONS Although scarce, endogenously cycling adult cardiomyocytes contribute to myocardial function after injury, suggesting that these cells may be physiologically relevant.
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Affiliation(s)
- Leigh A Bradley
- Department of Medicine (L.A.B., A.Y., H.L., H.O.B., M.J.W.), University of Virginia, Charlottesville
- Robert M. Berne Cardiovascular Research Center (L.A.B., A.Y., H.L., H.O.B., M.J.W.), University of Virginia, Charlottesville
| | - Alexander Young
- Department of Medicine (L.A.B., A.Y., H.L., H.O.B., M.J.W.), University of Virginia, Charlottesville
- Robert M. Berne Cardiovascular Research Center (L.A.B., A.Y., H.L., H.O.B., M.J.W.), University of Virginia, Charlottesville
| | - Hongbin Li
- Department of Medicine (L.A.B., A.Y., H.L., H.O.B., M.J.W.), University of Virginia, Charlottesville
- Robert M. Berne Cardiovascular Research Center (L.A.B., A.Y., H.L., H.O.B., M.J.W.), University of Virginia, Charlottesville
| | - Helen O Billcheck
- Department of Medicine (L.A.B., A.Y., H.L., H.O.B., M.J.W.), University of Virginia, Charlottesville
- Robert M. Berne Cardiovascular Research Center (L.A.B., A.Y., H.L., H.O.B., M.J.W.), University of Virginia, Charlottesville
| | - Matthew J Wolf
- Department of Medicine (L.A.B., A.Y., H.L., H.O.B., M.J.W.), University of Virginia, Charlottesville
- Robert M. Berne Cardiovascular Research Center (L.A.B., A.Y., H.L., H.O.B., M.J.W.), University of Virginia, Charlottesville
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22
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Affiliation(s)
- Wouter Derks
- Center for Regenerative Therapies Dresden, TU Dresden, Dresden, Germany (W.D., O.B.)
| | - Olaf Bergmann
- Center for Regenerative Therapies Dresden, TU Dresden, Dresden, Germany (W.D., O.B.).,Karolinska Institutet, Cell and Molecular Biology, Stockholm, Sweden (O.B.)
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23
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Abstract
The discovery of endogenous regenerative potential of the heart in zebrafish and neonatal mice has shifted the cardiac regenerative field towards the utilization of intrinsic regenerative mechanisms in the mammalian heart. The goal of these studies is to understand, and eventually apply, the neonatal regenerative mechanisms into adulthood. To facilitate these studies, the last two decades have seen advancements in the development of injury models in adult mice representative of the diversity of cardiac diseases. Here, we provide an overview for a selection of the most common cardiac ischemic injury models and describe a set of methods used to accurately analyze and quantify cardiac outcomes. Importantly, a comprehensive understanding of cardiac regeneration and repair requires a combination of multiple functional, histological, and molecular analyses.
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Affiliation(s)
- Elad Bassat
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Dahlia E Perez
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Eldad Tzahor
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel.
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24
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Fu W, Liao Q, Li L, Shi Y, Zeng A, Zeng C, Wang WE. An Aurora Kinase B-Based Mouse System to Efficiently Identify and Analyze Proliferating Cardiomyocytes. Front Cell Dev Biol 2020; 8:570252. [PMID: 33117800 PMCID: PMC7575716 DOI: 10.3389/fcell.2020.570252] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 09/14/2020] [Indexed: 12/19/2022] Open
Abstract
To identify and analyze the live proliferating cardiomyocytes is crucial for deciphering the mechanisms controlling endogenous cardiac regeneration. Traditional methods confuse cell division with multinucleation in postnatal cardiomyocytes. Recent efforts have achieved significant progress on discerning cytokinesis from only nuclear division. However, those methods were either designed to label post-cytokinesis progeny or challenging to sort the live proliferating cardiomyocytes. In this study, we highlighted an Aurora kinase B reporter-based mouse system with a tdTomato fluorescence labeling. It could efficiently identify proliferating cardiomyocytes in neonates. The analysis of sorting tdTomato+ cardiomyocytes with different ploidy indicated that mononucleated cardiomyocytes might not possess significantly higher proliferating potential than other cardiomyocytes when most cardiomyocytes have become post-mitotic. Moreover, tdTomato+ cardiomyocytes were significantly increased and enriched at injury border zone after apex resection in neonates, while there were no increased tdTomato+ cardiomyocytes after myocardial infarction in adults.
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Affiliation(s)
- Wenbin Fu
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, China.,Department of Cardiology, Daping Hospital, Army Medical University, Chongqing, China.,Chongqing Institute of Cardiology, Chongqing, China.,Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin Medical University, Harbin, China
| | - Qiao Liao
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, China.,Department of Cardiology, Daping Hospital, Army Medical University, Chongqing, China.,Chongqing Institute of Cardiology, Chongqing, China
| | - Liangpeng Li
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, China.,Department of Cardiology, Daping Hospital, Army Medical University, Chongqing, China.,Chongqing Institute of Cardiology, Chongqing, China
| | - Yu Shi
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, China.,Department of Cardiology, Daping Hospital, Army Medical University, Chongqing, China.,Chongqing Institute of Cardiology, Chongqing, China
| | - Andi Zeng
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, China.,Department of Cardiology, Daping Hospital, Army Medical University, Chongqing, China.,Chongqing Institute of Cardiology, Chongqing, China
| | - Chunyu Zeng
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, China.,Department of Cardiology, Daping Hospital, Army Medical University, Chongqing, China.,Chongqing Institute of Cardiology, Chongqing, China.,Cardiovascular Research Center, Chongqing College, University of Chinese Academy of Sciences, Chongqing, China
| | - Wei Eric Wang
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, China.,Department of Cardiology, Daping Hospital, Army Medical University, Chongqing, China.,Chongqing Institute of Cardiology, Chongqing, China
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25
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Kastner N, Mester-Tonczar J, Winkler J, Traxler D, Spannbauer A, Rüger BM, Goliasch G, Pavo N, Gyöngyösi M, Zlabinger K. Comparative Effect of MSC Secretome to MSC Co-culture on Cardiomyocyte Gene Expression Under Hypoxic Conditions in vitro. Front Bioeng Biotechnol 2020; 8:502213. [PMID: 33123511 PMCID: PMC7571272 DOI: 10.3389/fbioe.2020.502213] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 09/04/2020] [Indexed: 12/29/2022] Open
Abstract
Introduction Despite major leaps in regenerative medicine, the regeneration of cardiomyocytes after ischemic conditions remains to elucidate. It is crucial to understand hypoxia induced cellular mechanisms to provide advanced treatment options, including the use of stem cell paracrine factors for myocardial regeneration. Materials and Methods In this study, the regenerative potential of hypoxic human cardiomyocytes (group Hyp-CMC) in vitro was evaluated when co-cultured with human bone-marrow derived MSC (group Hyp-CMC-MSC) or stimulated with the secretome of MSC (group Hyp-CMC-SMSC). The secretome of normoxic MSC and CMC, and the hypoxic CMC was analyzed with a cytokine panel. Gene expression changes of HIF-1α, proliferation marker Ki-67 and cytokinesis marker RhoA over different reoxygenation time periods of 4, 8, 24, 48, and 72 h were analyzed in comparison to normoxic CMC and MSC. Further, the proinflammatory cytokine IL-18 protein expression change, metabolic activity and proliferation was assessed in all experimental setups. Results and Conclusion HIF-1α was persistently overexpressed in Hyp-CMC-SMSC as compared to Hyp-CMC (except at 72 h). Hyp-CMC-MSC showed a weaker HIF-1α expression than Hyp-CMC-SMSC in most tested time points, except after 8 h. The Ki-67 expression showed the strongest upregulation in Hyp-CMC after 24 and 48 h incubation, then returned to baseline level, while a temporary increase in Ki-67 expression in Hyp-CMC-MSC at 4 and 8 h and at 48 h in Hyp-CMC-SMSC could be observed. RhoA was increased in normoxic MSCs and in Hyp-CMC-SMSC over time, but not in Hyp-CMC-MSC. A temporary increase in IL-18 protein expression was detected in Hyp-CMC-SMSC and Hyp-CMC. Our study demonstrates timely dynamic changes in expression of different ischemia and regeneration-related genes of CMCs, depending from the culture condition, with stronger expression of HIF-1α, RhoA and IL-18 if the hypoxic CMC were subjected to the secretome of MSCs.
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Affiliation(s)
- Nina Kastner
- Department of Cardiology, Medical University of Vienna, Vienna, Austria
| | | | - Johannes Winkler
- Department of Cardiology, Medical University of Vienna, Vienna, Austria
| | - Denise Traxler
- Department of Cardiology, Medical University of Vienna, Vienna, Austria
| | | | - Beate M Rüger
- Department of Blood Group Serology and Transfusion Medicine, Medical University of Vienna, Vienna, Austria
| | - Georg Goliasch
- Department of Cardiology, Medical University of Vienna, Vienna, Austria
| | - Noemi Pavo
- Department of Cardiology, Medical University of Vienna, Vienna, Austria
| | - Mariann Gyöngyösi
- Department of Cardiology, Medical University of Vienna, Vienna, Austria
| | - Katrin Zlabinger
- Department of Cardiology, Medical University of Vienna, Vienna, Austria
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26
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Garcia-Gonzalez I, Mühleder S, Fernández-Chacón M, Benedito R. Genetic Tools to Study Cardiovascular Biology. Front Physiol 2020; 11:1084. [PMID: 33071802 PMCID: PMC7541935 DOI: 10.3389/fphys.2020.01084] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 08/06/2020] [Indexed: 12/22/2022] Open
Abstract
Progress in biomedical science is tightly associated with the improvement of methods and genetic tools to manipulate and analyze gene function in mice, the most widely used model organism in biomedical research. The joint effort of numerous individual laboratories and consortiums has contributed to the creation of a large genetic resource that enables scientists to image cells, probe signaling pathways activities, or modify a gene function in any desired cell type or time point, à la carte. However, as these tools significantly increase in number and become more sophisticated, it is more difficult to keep track of each tool's possibilities and understand their advantages and disadvantages. Knowing the best currently available genetic technology to answer a particular biological question is key to reach a higher standard in biomedical research. In this review, we list and discuss the main advantages and disadvantages of available mammalian genetic technology to analyze cardiovascular cell biology at higher cellular and molecular resolution. We start with the most simple and classical genetic approaches and end with the most advanced technology available to fluorescently label cells, conditionally target their genes, image their clonal expansion, and decode their lineages.
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Affiliation(s)
| | | | | | - Rui Benedito
- Molecular Genetics of Angiogenesis Group, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
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27
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Dittrich A, Hansen K, Simonsen MIT, Busk M, Alstrup AKO, Lauridsen H. Intrinsic Heart Regeneration in Adult Vertebrates May be Strictly Limited to Low-Metabolic Ectotherms. Bioessays 2020; 42:e2000054. [PMID: 32914411 DOI: 10.1002/bies.202000054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 08/12/2020] [Indexed: 01/24/2023]
Abstract
The heart has a high-metabolic rate, and its "around-the-clock" vital role to sustain life sets it apart in a regenerative setting from other organs and appendages. The landscape of vertebrate species known to perform intrinsic heart regeneration is strongly biased toward ectotherms-for example, fish, salamanders, and embryonic/neonatal ectothermic mammals. It is hypothesized that intrinsic heart regeneration is exclusively limited to the low-metabolic hearts of ectotherms. The biomedical field of regenerative medicine seeks to devise biologically inspired regenerative therapies to diseased human hearts. Falsification of the ectothermy dependency for heart regeneration hypothesis may be a crucial prerequisite to meaningfully seek inspiration in established ectothermic regenerative animal models. Otherwise, engineering approaches to construct artificial heart components may constitute a more viable path toward regenerative therapies. A more strict definition of regenerative phenomena is generated and several testable sub-hypotheses and experimental avenues are put forward to elucidate the link between heart regeneration and metabolism. Also see the video abstract here https://youtu.be/fZcanaOT5z8.
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Affiliation(s)
- Anita Dittrich
- Department of Clinical Medicine (Comparative Medicine Lab), Aarhus University, Aarhus N, 8200, Denmark
| | - Kasper Hansen
- Department of Clinical Medicine (Comparative Medicine Lab), Aarhus University, Aarhus N, 8200, Denmark.,Department of Forensic Medicine, Aarhus University, Aarhus N, 8200, Denmark.,Department of Biology (Zoophysiology), Aarhus University, Aarhus C, 8000, Denmark.,Leicester Royal Infirmary (East Midlands Forensic Pathology Unit), University of Leicester, Leicester, LE2 7LX, UK
| | | | - Morten Busk
- Department of Oncology (Experimental Clinical Oncology), Aarhus University Hospital, Aarhus N, 8200, Denmark.,Danish Centre for Particle Therapy, Aarhus University Hospital, Aarhus N, 8200, Denmark
| | | | - Henrik Lauridsen
- Department of Clinical Medicine (Comparative Medicine Lab), Aarhus University, Aarhus N, 8200, Denmark
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28
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Jang J, Engleka KA, Liu F, Li L, Song G, Epstein JA, Li D. An Engineered Mouse to Identify Proliferating Cells and Their Derivatives. Front Cell Dev Biol 2020; 8:388. [PMID: 32523954 PMCID: PMC7261916 DOI: 10.3389/fcell.2020.00388] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 04/29/2020] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Cell proliferation is a fundamental event during development, disease, and regeneration. Effectively tracking and quantifying proliferating cells and their derivatives is critical for addressing many research questions. Cell cycle expression such as for Ki67, proliferating cell nuclear antigen (PCNA), or aurora kinase B (Aurkb), or measurement of 5-bromo-2'-deoxyuridine (BrdU) or 3H-thymidine incorporation have been widely used to assess and quantify cell proliferation. These are powerful tools for detecting actively proliferating cells, but they do not identify cell populations derived from proliferating progenitors over time. AIMS We developed a new mouse tool for lineage tracing of proliferating cells by targeting the Aurkb allele. RESULTS In quiescent cells or cells arrested at G1/S, little or no Aurkb mRNA is detectable. In cycling cells, Aurkb transcripts are detectable at G2 and become undetectable by telophase. These findings suggest that Aurkb transcription is restricted to proliferating cells and is tightly coupled to cell proliferation. Accordingly, we generated an Aurkb ER Cre/+ mouse by targeting a tamoxifen inducible Cre cassette into the start codon of Aurkb. We find that the Aurkb ER Cre/+ mouse faithfully labels proliferating cells in developing embryos and regenerative adult tissues such as intestine but does not label quiescent cells such as post-mitotic neurons. CONCLUSION The Aurkb ER Cre/+ mouse faithfully labels proliferating cells and their derivatives in developing embryos and regenerative adult tissues. This new mouse tool provides a novel genetic tracing capability for studying tissue proliferation and regeneration.
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Affiliation(s)
- Jihyun Jang
- Department of Surgery, Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Kurt A. Engleka
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
- Penn Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Feiyan Liu
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
- Penn Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Li Li
- Penn Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Guang Song
- Department of Surgery, Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Jonathan A. Epstein
- Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
- Penn Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Deqiang Li
- Department of Surgery, Center for Vascular and Inflammatory Diseases, University of Maryland School of Medicine, Baltimore, MD, United States
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29
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Wang BJ, Alvarez R, Muliono A, Sengphanith S, Monsanto MM, Weeks J, Sacripanti R, Sussman MA. Adaptation within embryonic and neonatal heart environment reveals alternative fates for adult c-kit + cardiac interstitial cells. Stem Cells Transl Med 2020; 9:620-635. [PMID: 31891237 PMCID: PMC7180292 DOI: 10.1002/sctm.19-0277] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 11/12/2019] [Accepted: 12/06/2019] [Indexed: 12/28/2022] Open
Abstract
Cardiac interstitial cells (CICs) perform essential roles in myocardial biology through preservation of homeostasis as well as response to injury or stress. Studies of murine CIC biology reveal remarkable plasticity in terms of transcriptional reprogramming and ploidy state with important implications for function. Despite over a decade of characterization and in vivo utilization of adult c-Kit+ CIC (cCIC), adaptability and functional responses upon delivery to adult mammalian hearts remain poorly understood. Limitations of characterizing cCIC biology following in vitro expansion and adoptive transfer into the adult heart were circumvented by delivery of the donated cells into early cardiogenic environments of embryonic, fetal, and early postnatal developing hearts. These three developmental stages were permissive for retention and persistence, enabling phenotypic evaluation of in vitro expanded cCICs after delivery as well as tissue response following introduction to the host environment. Embryonic blastocyst environment prompted cCIC integration into trophectoderm as well as persistence in amniochorionic membrane. Delivery to fetal myocardium yielded cCIC perivascular localization with fibroblast-like phenotype, similar to cCICs introduced to postnatal P3 heart with persistent cell cycle activity for up to 4 weeks. Fibroblast-like phenotype of exogenously transferred cCICs in fetal and postnatal cardiogenic environments is consistent with inability to contribute directly toward cardiogenesis and lack of functional integration with host myocardium. In contrast, cCICs incorporation into extra-embryonic membranes is consistent with fate of polyploid cells in blastocysts. These findings provide insight into cCIC biology, their inherent predisposition toward fibroblast fates in cardiogenic environments, and remarkable participation in extra-embryonic tissue formation.
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Affiliation(s)
- Bingyan J. Wang
- SDSU Heart Institute and Department of BiologySan Diego State UniversitySan DiegoCalifornia
| | - Roberto Alvarez
- SDSU Heart Institute and Department of BiologySan Diego State UniversitySan DiegoCalifornia
| | - Alvin Muliono
- SDSU Heart Institute and Department of BiologySan Diego State UniversitySan DiegoCalifornia
| | - Sharon Sengphanith
- SDSU Heart Institute and Department of BiologySan Diego State UniversitySan DiegoCalifornia
| | - Megan M. Monsanto
- SDSU Heart Institute and Department of BiologySan Diego State UniversitySan DiegoCalifornia
| | - Joi Weeks
- SDSU Heart Institute and Department of BiologySan Diego State UniversitySan DiegoCalifornia
| | - Roberto Sacripanti
- SDSU Heart Institute and Department of BiologySan Diego State UniversitySan DiegoCalifornia
| | - Mark A. Sussman
- SDSU Heart Institute and Department of BiologySan Diego State UniversitySan DiegoCalifornia
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30
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Verjans R, van Bilsen M, Schroen B. Reviewing the Limitations of Adult Mammalian Cardiac Regeneration: Noncoding RNAs as Regulators of Cardiomyogenesis. Biomolecules 2020; 10:biom10020262. [PMID: 32050588 PMCID: PMC7072544 DOI: 10.3390/biom10020262] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 02/03/2020] [Accepted: 02/07/2020] [Indexed: 12/18/2022] Open
Abstract
The adult mammalian heart is incapable of regeneration following cardiac injury, leading to a decline in function and eventually heart failure. One of the most evident barriers limiting cardiac regeneration is the inability of cardiomyocytes to divide. It has recently become clear that the mammalian heart undergoes limited cardiomyocyte self-renewal throughout life and is even capable of modest regeneration early after birth. These exciting findings have awakened the goal to promote cardiomyogenesis of the human heart to repair cardiac injury or treat heart failure. We are still far from understanding why adult mammalian cardiomyocytes possess only a limited capacity to proliferate. Identifying the key regulators may help to progress towards such revolutionary therapy. Specific noncoding RNAs control cardiomyocyte division, including well explored microRNAs and more recently emerged long noncoding RNAs. Elucidating their function and molecular mechanisms during cardiomyogenesis is a prerequisite to advance towards therapeutic options for cardiac regeneration. In this review, we present an overview of the molecular basis of cardiac regeneration and describe current evidence implicating microRNAs and long noncoding RNAs in this process. Current limitations and future opportunities regarding how these regulatory mechanisms can be harnessed to study myocardial regeneration will be addressed.
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Affiliation(s)
- Robin Verjans
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, 6200 MD Maastricht, The Netherlands;
| | - Marc van Bilsen
- Department of Physiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, 6200 MD Maastricht, The Netherlands;
| | - Blanche Schroen
- Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, 6200 MD Maastricht, The Netherlands;
- Correspondence: ; Tel.: +31-433882949
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31
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Yang K, Wang C, Wei X, Ding S, Liu C, Tian F, Li F. Self-Illuminating Photodynamic Therapy with Enhanced Therapeutic Effect by Optimization of the Chemiluminescence Resonance Energy Transfer Step to the Photosensitizer. Bioconjug Chem 2020; 31:595-604. [PMID: 31830411 DOI: 10.1021/acs.bioconjchem.9b00740] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The major obstacles to the wider application of photodynamic therapy (PDT) are drawbacks of the current photosensitizers and the tissue penetration limit of the common outer light source. In the present study, the chemiluminescence (CL) from the luminol-H2O2-horseradish peroxidase reaction was explored as a potential inner light source for the intracellular activation of carbon dots (CDs)-based PDT system. To fully use the light and enhance the overall PDT yield, the nanocarrier of CDs, the light of CL, and the PDT agent chlorin e6 (Ce6) were carefully selected and designed to form an efficient and united system. Bright-yellow-emissive CDs (y-CDs) were synthesized through purposeful regulation of the absorption and emission spectra to enhance the overlapping areas in the chemiluminescence resonance energy transfer (CRET) and fluorescence resonance energy transfer (FRET) processes. Our results reflected CL-induced y-CDs-Ce6 system (10 μM) successfully generated reactive oxygen species (ROS, 35.93%), killed ∼90% SMMC-7721 cells in vitro, and significantly delayed tumor growth in vivo. On the basis of immunohistochemical observations of proliferating cell nuclear antigen (PCNA) and platelet/endothelial cell adhesion molecule-1 (PECAM-1 or CD31) results, we concluded that the CL-induced y-CDs-Ce6 system had excellent performance in cancer therapy. The enhanced therapeutic effect was ascribed to two pathways: a direct CRET process and another process of CRET with subsequent y-CD-mediated FRET (CRET-to-FRET).
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Affiliation(s)
- Kun Yang
- Institute of Medical Support Technology, Academy of Military Sciences, Tianjin 300161, China
| | - Chunlai Wang
- Institute of Medical Support Technology, Academy of Military Sciences, Tianjin 300161, China
| | - Xiaohui Wei
- Institute of Medical Support Technology, Academy of Military Sciences, Tianjin 300161, China
| | - Sheng Ding
- Institute of Medical Support Technology, Academy of Military Sciences, Tianjin 300161, China
| | - Changjun Liu
- Institute of Medical Support Technology, Academy of Military Sciences, Tianjin 300161, China.,National Engineering Research Center for Biological Protective Equipment, Tianjin 300161, China
| | - Feng Tian
- Institute of Medical Support Technology, Academy of Military Sciences, Tianjin 300161, China
| | - Fan Li
- Institute of Medical Support Technology, Academy of Military Sciences, Tianjin 300161, China
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Broughton KM, Sussman MA. Cardiac tissue engineering therapeutic products to enhance myocardial contractility. J Muscle Res Cell Motil 2019; 41:363-373. [PMID: 31863324 DOI: 10.1007/s10974-019-09570-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 12/13/2019] [Indexed: 12/11/2022]
Abstract
Researchers continue to develop therapeutic products for the repair and replacement of myocardial tissue that demonstrates contractility equivalent to normal physiologic states. As clinical trials focused on pure adult stem cell populations undergo meta-analysis for preclinical through clinical design, the field of tissue engineering is emerging as a new clinical frontier to repair the myocardium and improve cardiac output. This review will first discuss the three primary tissue engineering product themes that are advancing in preclinical to clinical models: (1) cell-free scaffolds, (2) scaffold-free cellular, and (3) hybrid cell and scaffold products. The review will then focus on the products that have advanced from preclinical models to clinical trials. In advancing the cardiac regenerative medicine field, long-term gains towards discovering an optimal product to generate functional myocardial tissue and eliminate heart failure may be achieved.
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Affiliation(s)
- Kathleen M Broughton
- Department of Biology and Heart Institute, San Diego State University, 5500 Campanile Drive, San Diego, CA, 92182, USA
| | - Mark A Sussman
- Department of Biology and Heart Institute, San Diego State University, 5500 Campanile Drive, San Diego, CA, 92182, USA.
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Blankesteijn WM. Interventions in WNT Signaling to Induce Cardiomyocyte Proliferation: Crosstalk with Other Pathways. Mol Pharmacol 2019; 97:90-101. [PMID: 31757861 DOI: 10.1124/mol.119.118018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 11/06/2019] [Indexed: 12/26/2022] Open
Abstract
Myocardial infarction is a frequent cardiovascular event and a major cause for cardiomyocyte loss. In adult mammals, cardiomyocytes are traditionally considered to be terminally differentiated cells, unable to proliferate. Therefore, the wound-healing response in the infarct area typically yields scar tissue rather than newly formed cardiomyocytes. In the last decade, several lines of evidence have challenged the lack of proliferative capacity of the differentiated cardiomyocyte: studies in zebrafish and neonatal mammals have convincingly demonstrated the regenerative capacity of cardiomyocytes. Moreover, multiple signaling pathways have been identified in these models that-when activated in adult mammalian cardiomyocytes-can reactivate the cell cycle in these cells. However, cardiomyocytes frequently exit the cell cycle before symmetric division into daughter cells, leading to polyploidy and multinucleation. Now that there is more insight into the reactivation of the cell cycle machinery, other prerequisites for successful symmetric division of cardiomyocytes, such as the control of sarcomere disassembly to allow cytokinesis, require more investigation. This review aims to discuss the signaling pathways involved in cardiomyocyte proliferation, with a specific focus on wingless/int-1 protein signaling. Comparing the conflicting results from in vitro and in vivo studies on this pathway illustrates that the interaction with other cells and structures around the infarct is likely to be essential to determine the outcome of these interventions. The extensive crosstalk with other pathways implicated in cardiomyocyte proliferation calls for the identification of nodal points in the cell signaling before cardiomyocyte proliferation can be moved forward toward clinical application as a cure of cardiac disease. SIGNIFICANCE STATEMENT: Evidence is mounting that proliferation of pre-existing cardiomyocytes can be stimulated to repair injury of the heart. In this review article, an overview is provided of the different signaling pathways implicated in cardiomyocyte proliferation with emphasis on wingless/int-1 protein signaling, crosstalk between the pathways, and controversial results obtained in vitro and in vivo.
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Affiliation(s)
- W Matthijs Blankesteijn
- Department of Pharmacology and Toxicology, Cardiovascular Research Institute Maastricht, Maastricht University, The Netherlands
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Yifa O, Weisinger K, Bassat E, Li H, Kain D, Barr H, Kozer N, Genzelinakh A, Rajchman D, Eigler T, Umansky KB, Lendengolts D, Brener O, Bursac N, Tzahor E. The small molecule Chicago Sky Blue promotes heart repair following myocardial infarction in mice. JCI Insight 2019; 4:128025. [PMID: 31723055 DOI: 10.1172/jci.insight.128025] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 10/03/2019] [Indexed: 12/11/2022] Open
Abstract
The adult mammalian heart regenerates poorly after injury and, as a result, ischemic heart diseases are among the leading causes of death worldwide. The recovery of the injured heart is dependent on orchestrated repair processes including inflammation, fibrosis, cardiomyocyte survival, proliferation, and contraction properties that could be modulated in patients. In this work we designed an automated high-throughput screening system for small molecules that induce cardiomyocyte proliferation in vitro and identified the small molecule Chicago Sky Blue 6B (CSB). Following induced myocardial infarction, CSB treatment reduced scar size and improved heart function of adult mice. Mechanistically, we show that although initially identified using in vitro screening for cardiomyocyte proliferation, in the adult mouse CSB promotes heart repair through (i) inhibition of CaMKII signaling, which improves cardiomyocyte contractility; and (ii) inhibition of neutrophil and macrophage activation, which attenuates the acute inflammatory response, thereby contributing to reduced scarring. In summary, we identified CSB as a potential therapeutic agent that enhances cardiac repair and function by suppressing postinjury detrimental processes, with no evidence for cardiomyocyte renewal.
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Affiliation(s)
- Oren Yifa
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Karen Weisinger
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Elad Bassat
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Hanjun Li
- Department of Biomedical Engineering, Duke University, Durham, North Carolina, USA
| | - David Kain
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Haim Barr
- HTS unit, The Nancy and Stephen Grand Israel National Center for Personalized Medicine (G-INCPM), and
| | - Noga Kozer
- HTS unit, The Nancy and Stephen Grand Israel National Center for Personalized Medicine (G-INCPM), and
| | - Alexander Genzelinakh
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Dana Rajchman
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Tamar Eigler
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Kfir Baruch Umansky
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Daria Lendengolts
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Ori Brener
- Department of Veterinary Resources, Weizmann Institute of Science, Rehovot, Israel
| | - Nenad Bursac
- Department of Biomedical Engineering, Duke University, Durham, North Carolina, USA
| | - Eldad Tzahor
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
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Gude NA, Sussman MA. Cardiac regenerative therapy: Many paths to repair. Trends Cardiovasc Med 2019; 30:338-343. [PMID: 31515053 DOI: 10.1016/j.tcm.2019.08.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 08/14/2019] [Accepted: 08/29/2019] [Indexed: 12/17/2022]
Abstract
Cardiovascular disease remains the primary cause of death in the United States and in most nations worldwide, despite ongoing intensive efforts to promote cardiac health and treat heart failure. Replacing damaged myocardium represents perhaps the most promising treatment strategy, but also the most challenging given that the adult mammalian heart is notoriously resistant to endogenous repair. Cardiac regeneration following pathologic challenge would require proliferation of surviving tissue, expansion and differentiation of resident progenitors, or transdifferentiation of exogenously applied progenitor cells into functioning myocardium. Adult cardiomyocyte proliferation has been the focus of investigation for decades, recently enjoying a renaissance of interest as a therapeutic strategy for reversing cardiomyocyte loss due in large part to ongoing controversies and frustrations with myocardial cell therapy outcomes. The promise of cardiac cell therapy originated with reports of resident adult cardiac stem cells that could be isolated, expanded and reintroduced into damaged myocardium, producing beneficial effects in preclinical animal models. Despite modest functional improvements, Phase I clinical trials using autologous cardiac derived cells have proven safe and effective, setting the stage for an ongoing multi-center Phase II trial combining autologous cardiac stem cell types to enhance beneficial effects. This overview will examine the history of these two approaches for promoting cardiac repair and attempt to provide context for current and future directions in cardiac regenerative research.
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Affiliation(s)
- Natalie A Gude
- SDSU Heart Institute and Biology Department, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182, USA
| | - Mark A Sussman
- SDSU Heart Institute and Biology Department, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182, USA.
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Broughton KM, Sussman MA. Adult Cardiomyocyte Cell Cycle Detour: Off-ramp to Quiescent Destinations. Trends Endocrinol Metab 2019; 30:557-567. [PMID: 31262545 PMCID: PMC6703820 DOI: 10.1016/j.tem.2019.05.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 05/24/2019] [Accepted: 05/30/2019] [Indexed: 02/06/2023]
Abstract
Ability to promote completion of mitotic cycling of adult mammalian cardiomyocytes remains an intractable and vexing challenge, despite being one of the most sought after 'holy grails' of cardiovascular research. While some of the struggle is attributable to adult cardiomyocytes themselves that are notoriously post-mitotic, another contributory factor rests with difficulty in definitive tracking of adult cardiomyocyte cell cycle and lack of rigorous measures to track proliferation in situ. This review summarizes past, present, and future directions to promote adult mammalian cardiomyocyte cell cycle progression, proliferation, and renewal. Establishing relationship(s) between cardiomyocyte cell cycle progression and cellular biological properties is sorely needed to understand the mechanistic basis for cardiomyocyte cell cycle withdrawal to enhance cardiomyocyte cell cycle progression and mitosis.
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Affiliation(s)
- Kathleen M Broughton
- San Diego State University, Department of Biology and Integrated Regenerative Research Institute, San Diego, CA 92182, USA
| | - Mark A Sussman
- San Diego State University, Department of Biology and Integrated Regenerative Research Institute, San Diego, CA 92182, USA.
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Broughton KM, Khieu T, Nguyen N, Rosa M, Mohsin S, Quijada P, Wang BJ, Echeagaray OH, Kubli DA, Kim T, Firouzi F, Monsanto MM, Gude NA, Adamson RM, Dembitsky WP, Davis ME, Sussman MA. Cardiac interstitial tetraploid cells can escape replicative senescence in rodents but not large mammals. Commun Biol 2019; 2:205. [PMID: 31231694 PMCID: PMC6565746 DOI: 10.1038/s42003-019-0453-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 05/02/2019] [Indexed: 12/26/2022] Open
Abstract
Cardiomyocyte ploidy has been described but remains obscure in cardiac interstitial cells. Ploidy of c-kit+ cardiac interstitial cells was assessed using confocal, karyotypic, and flow cytometric technique. Notable differences were found between rodent (rat, mouse) c-kit+ cardiac interstitial cells possessing mononuclear tetraploid (4n) content, compared to large mammals (human, swine) with mononuclear diploid (2n) content. In-situ analysis, confirmed with fresh isolates, revealed diploid content in human c-kit+ cardiac interstitial cells and a mixture of diploid and tetraploid content in mouse. Downregulation of the p53 signaling pathway provides evidence why rodent, but not human, c-kit+ cardiac interstitial cells escape replicative senescence. Single cell transcriptional profiling reveals distinctions between diploid versus tetraploid populations in mouse c-kit+ cardiac interstitial cells, alluding to functional divergences. Collectively, these data reveal notable species-specific biological differences in c-kit+ cardiac interstitial cells, which could account for challenges in extrapolation of myocardial from preclinical studies to clinical trials.
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Affiliation(s)
- Kathleen M. Broughton
- San Diego State University Heart Institute and the Integrated Regenerative Research Institute, 5500 Campanile Drive, San Diego, CA 92182 USA
| | - Tiffany Khieu
- San Diego State University Heart Institute and the Integrated Regenerative Research Institute, 5500 Campanile Drive, San Diego, CA 92182 USA
| | - Nicky Nguyen
- San Diego State University Heart Institute and the Integrated Regenerative Research Institute, 5500 Campanile Drive, San Diego, CA 92182 USA
| | - Michael Rosa
- San Diego State University Heart Institute and the Integrated Regenerative Research Institute, 5500 Campanile Drive, San Diego, CA 92182 USA
| | - Sadia Mohsin
- Cardiovascular Research Center, Temple University, 3500 N. Broad St., Philadelphia, 19140 PA USA
| | - Pearl Quijada
- San Diego State University Heart Institute and the Integrated Regenerative Research Institute, 5500 Campanile Drive, San Diego, CA 92182 USA
| | - Bingyan J. Wang
- San Diego State University Heart Institute and the Integrated Regenerative Research Institute, 5500 Campanile Drive, San Diego, CA 92182 USA
| | - Oscar H. Echeagaray
- San Diego State University Heart Institute and the Integrated Regenerative Research Institute, 5500 Campanile Drive, San Diego, CA 92182 USA
| | - Dieter A. Kubli
- San Diego State University Heart Institute and the Integrated Regenerative Research Institute, 5500 Campanile Drive, San Diego, CA 92182 USA
| | - Taeyong Kim
- San Diego State University Heart Institute and the Integrated Regenerative Research Institute, 5500 Campanile Drive, San Diego, CA 92182 USA
| | - Fareheh Firouzi
- San Diego State University Heart Institute and the Integrated Regenerative Research Institute, 5500 Campanile Drive, San Diego, CA 92182 USA
| | - Megan M. Monsanto
- San Diego State University Heart Institute and the Integrated Regenerative Research Institute, 5500 Campanile Drive, San Diego, CA 92182 USA
| | - Natalie A. Gude
- San Diego State University Heart Institute and the Integrated Regenerative Research Institute, 5500 Campanile Drive, San Diego, CA 92182 USA
| | - Robert M. Adamson
- Division of Cardiology, Sharp Memorial Hospital, 8010 Frost St., San Diego, 92123 CA USA
| | - Walter P. Dembitsky
- Division of Cardiology, Sharp Memorial Hospital, 8010 Frost St., San Diego, 92123 CA USA
| | - Michael E. Davis
- Biomedical Engineering and Medicine, Emory University, 1760 Haygood Dr., Atlanta, 30322 GA USA
| | - Mark A. Sussman
- San Diego State University Heart Institute and the Integrated Regenerative Research Institute, 5500 Campanile Drive, San Diego, CA 92182 USA
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38
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Advances in heart regeneration based on cardiomyocyte proliferation and regenerative potential of binucleated cardiomyocytes and polyploidization. Clin Sci (Lond) 2019; 133:1229-1253. [PMID: 31175264 DOI: 10.1042/cs20180560] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 05/23/2019] [Accepted: 05/24/2019] [Indexed: 12/12/2022]
Abstract
One great achievement in medical practice is the reduction in acute mortality of myocardial infarction due to identifying risk factors, antiplatelet therapy, optimized hospitalization and acute percutaneous coronary intervention. Yet, the prevalence of heart failure is increasing presenting a major socio-economic burden. Thus, there is a great need for novel therapies that can reverse damage inflicted to the heart. In recent years, data have accumulated suggesting that induction of cardiomyocyte proliferation might be a future option for cardiac regeneration. Here, we review the relevant literature since September 2015 concluding that it remains a challenge to verify that a therapy induces indeed cardiomyocyte proliferation. Most importantly, it is unclear that the detected increase in cardiomyocyte cell cycle activity is required for an associated improved function. In addition, we review the literature regarding the evidence that binucleated and polyploid mononucleated cardiomyocytes can divide, and put this in context to other cell types. Our analysis shows that there is significant evidence that binucleated cardiomyocytes can divide. Yet, it remains elusive whether also polyploid mononucleated cardiomyocytes can divide, how efficient proliferation of binucleated cardiomyocytes can be induced, what mechanism regulates cell cycle progression in these cells, and what fate and physiological properties the daughter cells have. In summary, we propose to standardize and independently validate cardiac regeneration studies, encourage the field to study the proliferative potential of binucleated and polyploid mononucleated cardiomyocytes, and to determine whether induction of polyploidization can enhance cardiac function post-injury.
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Lazzeri E, Angelotti ML, Conte C, Anders HJ, Romagnani P. Surviving Acute Organ Failure: Cell Polyploidization and Progenitor Proliferation. Trends Mol Med 2019; 25:366-381. [PMID: 30935780 DOI: 10.1016/j.molmed.2019.02.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 02/09/2019] [Accepted: 02/13/2019] [Indexed: 12/20/2022]
Abstract
In acute organ failure, rapid compensation of function loss assures survival. Dedifferentiation and/or proliferation of surviving parenchymal cells could imply a transient (and potentially fatal) impairment of residual functional performance. However, evolution has selected two flexible life-saving mechanisms acting synergistically on organ function recovery. Sustaining residual performance is possible when the remnant differentiated parenchymal cells avoid cell division, but increase function by undergoing hypertrophy via endoreplication, leading to polyploid cells. In addition, tissue progenitors, representing a subset of less-differentiated and/or self-renewing parenchymal cells completing cytokinesis, proliferate and differentiate to regenerate lost parenchymal cells. Here, we review the evolving evidence on polyploidization and progenitor-driven regeneration in acute liver, heart, and kidney failure with evolutionary advantages and trade-offs in organ repair.
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Affiliation(s)
- Elena Lazzeri
- Department of Biological and Experimental Medical Science 'Mario Serio', Excellence Centre for Research, Transfer and High Education for the Development of DE NOVO Therapies (DENOTHE)
| | - Maria Lucia Angelotti
- Department of Biological and Experimental Medical Science 'Mario Serio', Excellence Centre for Research, Transfer and High Education for the Development of DE NOVO Therapies (DENOTHE)
| | - Carolina Conte
- Department of Biological and Experimental Medical Science 'Mario Serio', Excellence Centre for Research, Transfer and High Education for the Development of DE NOVO Therapies (DENOTHE)
| | - Hans-Joachim Anders
- Medizinische Klinik und Poliklinik IV, Klinikum der LMU München, Munich, Germany
| | - Paola Romagnani
- Department of Biological and Experimental Medical Science 'Mario Serio', Excellence Centre for Research, Transfer and High Education for the Development of DE NOVO Therapies (DENOTHE); Meyer Children's Hospital, Florence, Italy. http://www.twitter.com/PRomagnani
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