1
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Vijayakumar A, Wang M, Kailasam S. The Senescent Heart-"Age Doth Wither Its Infinite Variety". Int J Mol Sci 2024; 25:3581. [PMID: 38612393 PMCID: PMC11011282 DOI: 10.3390/ijms25073581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 03/10/2024] [Accepted: 03/19/2024] [Indexed: 04/14/2024] Open
Abstract
Cardiovascular diseases are a leading cause of morbidity and mortality world-wide. While many factors like smoking, hypertension, diabetes, dyslipidaemia, a sedentary lifestyle, and genetic factors can predispose to cardiovascular diseases, the natural process of aging is by itself a major determinant of the risk. Cardiac aging is marked by a conglomerate of cellular and molecular changes, exacerbated by age-driven decline in cardiac regeneration capacity. Although the phenotypes of cardiac aging are well characterised, the underlying molecular mechanisms are far less explored. Recent advances unequivocally link cardiovascular aging to the dysregulation of critical signalling pathways in cardiac fibroblasts, which compromises the critical role of these cells in maintaining the structural and functional integrity of the myocardium. Clearly, the identification of cardiac fibroblast-specific factors and mechanisms that regulate cardiac fibroblast function in the senescent myocardium is of immense importance. In this regard, recent studies show that Discoidin domain receptor 2 (DDR2), a collagen-activated receptor tyrosine kinase predominantly located in cardiac fibroblasts, has an obligate role in cardiac fibroblast function and cardiovascular fibrosis. Incisive studies on the molecular basis of cardiovascular aging and dysregulated fibroblast function in the senescent heart would pave the way for effective strategies to mitigate cardiovascular diseases in a rapidly growing elderly population.
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Affiliation(s)
- Anupama Vijayakumar
- Cardiovascular Genetics Laboratory, Department of Biotechnology, Bhupat and Jyothi Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India;
| | - Mingyi Wang
- Laboratory of Cardiovascular Science, National Institute on Aging/National Institutes of Health, Baltimore, MD 21224, USA;
| | - Shivakumar Kailasam
- Department of Biotechnology, University of Kerala, Kariavattom, Trivandrum 695581, India
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2
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Garry DJ, Zhang J(J, Larson TA, Sadek HA, Garry MG. Networks that Govern Cardiomyocyte Proliferation to Facilitate Repair of the Injured Mammalian Heart. Methodist Debakey Cardiovasc J 2023; 19:16-25. [PMID: 38028968 PMCID: PMC10655759 DOI: 10.14797/mdcvj.1300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 10/24/2023] [Indexed: 12/01/2023] Open
Abstract
Cardiovascular diseases are the number one cause of death worldwide and in the United States (US). Cardiovascular diseases frequently progress to end-stage heart failure, and curative therapies are extremely limited. Intense interest has focused on deciphering the cascades and networks that govern cardiomyocyte proliferation and regeneration of the injured heart. For example, studies have shown that lower organisms such as the adult newt and adult zebrafish have the capacity to completely regenerate their injured heart with restoration of function. Similarly, the neonatal mouse and pig are also able to completely regenerate injured myocardium due to cardiomyocyte proliferation from preexisting cardiomyocytes. Using these animal models and transcriptome analyses, efforts have focused on the definition of factors and signaling pathways that can reactivate and induce cardiomyocyte proliferation in the adult mammalian injured heart. These studies and discoveries have the potential to define novel therapies to promote cardiomyocyte proliferation and repair of the injured, mammalian heart.
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Affiliation(s)
- Daniel J. Garry
- University of Minnesota, Minneapolis, Minnesota, US
- NorthStar Genomics, Eagan, Minnesota, US
| | | | | | | | - Mary G. Garry
- NorthStar Genomics, Eagan, Minnesota, US
- University of Minnesota, Minneapolis, MN
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3
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Shi DL. RNA-Binding Proteins as Critical Post-Transcriptional Regulators of Cardiac Regeneration. Int J Mol Sci 2023; 24:12004. [PMID: 37569379 PMCID: PMC10418649 DOI: 10.3390/ijms241512004] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/24/2023] [Accepted: 07/25/2023] [Indexed: 08/13/2023] Open
Abstract
Myocardial injury causes death to cardiomyocytes and leads to heart failure. The adult mammalian heart has very limited regenerative capacity. However, the heart from early postnatal mammals and from adult lower vertebrates can fully regenerate after apical resection or myocardial infarction. Thus, it is of particular interest to decipher the mechanism underlying cardiac regeneration that preserves heart structure and function. RNA-binding proteins, as key regulators of post-transcriptional gene expression to coordinate cell differentiation and maintain tissue homeostasis, display dynamic expression in fetal and adult hearts. Accumulating evidence has demonstrated their importance for the survival and proliferation of cardiomyocytes following neonatal and postnatal cardiac injury. Functional studies suggest that RNA-binding proteins relay damage-stimulated cell extrinsic or intrinsic signals to regulate heart regenerative capacity by reprogramming multiple molecular and cellular processes, such as global protein synthesis, metabolic changes, hypertrophic growth, and cellular plasticity. Since manipulating the activity of RNA-binding proteins can improve the formation of new cardiomyocytes and extend the window of the cardiac regenerative capacity in mammals, they are potential targets of therapeutic interventions for cardiovascular disease. This review discusses our evolving understanding of RNA-binding proteins in regulating cardiac repair and regeneration, with the aim to identify important open questions that merit further investigations.
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Affiliation(s)
- De-Li Shi
- Department of Medical Research, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
- Laboratory of Developmental Biology (CNRS-UMR7622), Institute de Biologie Paris-Seine (IBPS), Sorbonne University, 75005 Paris, France
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4
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Li S, Shen S, Xu H, Cai S, Yuan X, Wang C, Zhang X, Chen S, Chen J, Shi DL, Zhang L. IGF2BP3 promotes adult myocardial regeneration by stabilizing MMP3 mRNA through interaction with m6A modification. Cell Death Discov 2023; 9:164. [PMID: 37188676 DOI: 10.1038/s41420-023-01457-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/19/2023] [Accepted: 04/28/2023] [Indexed: 05/17/2023] Open
Abstract
Myocardial infarction that causes damage to heart muscle can lead to heart failure. The identification of molecular mechanisms promoting myocardial regeneration represents a promising strategy to improve cardiac function. Here we show that IGF2BP3 plays an important role in regulating adult cardiomyocyte proliferation and regeneration in a mouse model of myocardial infarction. IGF2BP3 expression progressively decreases during postnatal development and becomes undetectable in the adult heart. However, it becomes upregulated after cardiac injury. Both gain- and loss-of-function analyses indicate that IGF2BP3 regulates cardiomyocyte proliferation in vitro and in vivo. In particular, IGF2BP3 promotes cardiac regeneration and improves cardiac function after myocardial infarction. Mechanistically, we demonstrate that IGF2BP3 binds to and stabilizes MMP3 mRNA through interaction with N6-methyladenosine modification. The expression of MMP3 protein is also progressively downregulated during postnatal development. Functional analyses indicate that MMP3 acts downstream of IGF2BP3 to regulate cardiomyocyte proliferation. These results suggest that IGF2BP3-mediated post-transcriptional regulation of extracellular matrix and tissue remodeling contributes to cardiomyocyte regeneration. They should help to define therapeutic strategy for ameliorating myocardial infarction by inducing cell proliferation and heart repair.
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Affiliation(s)
- Simeng Li
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
- Zhanjiang Key Laboratory of Organ Function Injury and Protection, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
- Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Siman Shen
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
- Zhanjiang Key Laboratory of Organ Function Injury and Protection, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
- Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Hao Xu
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
- Zhanjiang Key Laboratory of Organ Function Injury and Protection, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
- Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Shuyun Cai
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
- Zhanjiang Key Laboratory of Organ Function Injury and Protection, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
- Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Xiaodong Yuan
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
- Zhanjiang Key Laboratory of Organ Function Injury and Protection, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
- Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Changsen Wang
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
- Zhanjiang Key Laboratory of Organ Function Injury and Protection, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
- Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Xiaojun Zhang
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
- Zhanjiang Key Laboratory of Organ Function Injury and Protection, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
- Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Suyun Chen
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
- Zhanjiang Key Laboratory of Organ Function Injury and Protection, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
- Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Jianning Chen
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
- Zhanjiang Key Laboratory of Organ Function Injury and Protection, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
- Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - De-Li Shi
- Zhanjiang Key Laboratory of Organ Function Injury and Protection, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.
- Laboratory of Developmental Biology, CNRS-UMR7622, Institut de Biologie Paris-Seine (IBPS), Sorbonne University, 75005, Paris, France.
| | - Liangqing Zhang
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.
- Zhanjiang Key Laboratory of Organ Function Injury and Protection, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.
- Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.
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5
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Johnson J, Yang Y, Bian Z, Schena G, Li Y, Zhang X, Eaton DM, Gross P, Angheloiu A, Shaik A, Foster M, Berretta R, Kubo H, Mohsin S, Tian Y, Houser SR. Systemic Hypoxemia Induces Cardiomyocyte Hypertrophy and Right Ventricular Specific Induction of Proliferation. Circ Res 2023; 132:723-740. [PMID: 36799218 PMCID: PMC10023496 DOI: 10.1161/circresaha.122.321604] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 02/06/2023] [Indexed: 02/18/2023]
Abstract
BACKGROUND A recent study suggests that systemic hypoxemia in adult male mice can induce cardiac myocytes to proliferate. The goal of the present experiments was to confirm these results, provide new insights on the mechanisms that induce adult cardiomyocyte cell cycle reentry, and to determine if hypoxemia also induces cardiomyocyte proliferation in female mice. METHODS EdU-containing mini pumps were implanted in 3-month-old, male and female C57BL/6 mice. Mice were placed in a hypoxia chamber, and the oxygen was lowered by 1% every day for 14 days to reach 7% oxygen. The animals remained in 7% oxygen for 2 weeks before terminal studies. Myocyte proliferation was also studied with a mosaic analysis with double markers mouse model. RESULTS Hypoxia induced cardiac hypertrophy in both left ventricular (LV) and right ventricular (RV) myocytes, with LV myocytes lengthening and RV myocytes widening and lengthening. Hypoxia induced an increase (0.01±0.01% in normoxia to 0.11±0.09% in hypoxia) in the number of EdU+ RV cardiomyocytes, with no effect on LV myocytes in male C57BL/6 mice. Similar results were observed in female mice. Furthermore, in mosaic analysis with double markers mice, hypoxia induced a significant increase in RV myocyte proliferation (0.03±0.03% in normoxia to 0.32±0.15% in hypoxia of RFP+ myocytes), with no significant change in LV myocyte proliferation. RNA sequencing showed upregulation of mitotic cell cycle genes and a downregulation of Cullin genes, which promote the G1 to S phase transition in hypoxic mice. There was significant proliferation of nonmyocytes and mild cardiac fibrosis in hypoxic mice that did not disrupt cardiac function. Male and female mice exhibited similar gene expression following hypoxia. CONCLUSIONS Systemic hypoxia induces a global hypertrophic stress response that was associated with increased RV proliferation, and while LV myocytes did not show increased proliferation, our results minimally confirm previous reports that hypoxia can induce cardiomyocyte cell cycle activity in vivo.
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Affiliation(s)
- Jaslyn Johnson
- Independence Blue Cross Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Yijun Yang
- Independence Blue Cross Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Zilin Bian
- Tandon School of Engineering, New York University, Brooklyn, NY, USA
| | | | - Yijia Li
- Independence Blue Cross Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Xiaoying Zhang
- Department of Cardiovascular Sciences, Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Deborah M. Eaton
- Penn Cardiovascular Institute, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA
| | - Polina Gross
- Independence Blue Cross Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | | | | | | | - Remus Berretta
- Independence Blue Cross Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Hajime Kubo
- Independence Blue Cross Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Sadia Mohsin
- Independence Blue Cross Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Ying Tian
- Department of Cardiovascular Sciences, Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Steven R. Houser
- Independence Blue Cross Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
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6
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Bei Y, Chen C, Hua X, Yin M, Meng X, Huang Z, Qi W, Su Z, Liu C, Lehmann HI, Li G, Huang Y, Xiao J. A modified apical resection model with high accuracy and reproducibility in neonatal mouse and rat hearts. NPJ Regen Med 2023; 8:9. [PMID: 36806296 PMCID: PMC9938870 DOI: 10.1038/s41536-023-00284-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Accepted: 02/02/2023] [Indexed: 02/19/2023] Open
Abstract
Neonatal mouse heart can regenerate after left ventricle (LV) apical resection (AR). Since current AR rodent method is accomplished by resecting LV apex until exposure of LV chamber, it is relatively difficult to operate reproducibly. We aimed to develop a modified AR method with high accuracy and reproducibility and to investigate whether cardiac regenerative capacity could be replicated in neonatal rats. For 15% AR of whole heart weight in 1-day-old (P1) neonatal mice, a modified 10 μL pipette tip cut to 0.48 mm in internal diameter was connected to a vacuum pump working at 0.06 ± 0.005 MPa and gently kept in touch with LV apex for nearly but no more than 12 s. LV apex was resected by a single incision adjacent to the pipette tip. The modified AR method in P1 mice achieved cardiac structural and functional recovery at 21 days post resection (dpr). Data from different operators showed smaller variation of resected LV apex and higher reproducibility using the modified AR method. Furthermore, we showed that 5% AR of whole heart weight in P1 neonatal rats using a modified 200 μL pipette tip cut to 0.63 mm in internal diameter led to complete regeneration of LV apex and full preservation of cardiac function at 42 dpr. In conclusion, the modified AR rodent model leads to accurate resection of LV apex with high homogeneity and reproducibility and it is practically convenient for the study of structural, functional, and molecular mechanisms of cardiac regeneration in both neonatal mice and rats.
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Affiliation(s)
- Yihua Bei
- Cardiac Regeneration and Ageing Lab, Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong, 226011, China. .,Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai, 200444, China.
| | - Chen Chen
- grid.39436.3b0000 0001 2323 5732Cardiac Regeneration and Ageing Lab, Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People’s Hospital of Nantong), School of Medicine, Shanghai University, Nantong, 226011 China ,grid.39436.3b0000 0001 2323 5732Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai, 200444 China
| | - Xuejiao Hua
- grid.39436.3b0000 0001 2323 5732Cardiac Regeneration and Ageing Lab, Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People’s Hospital of Nantong), School of Medicine, Shanghai University, Nantong, 226011 China
| | - Mingming Yin
- grid.39436.3b0000 0001 2323 5732Cardiac Regeneration and Ageing Lab, Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People’s Hospital of Nantong), School of Medicine, Shanghai University, Nantong, 226011 China ,grid.39436.3b0000 0001 2323 5732Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai, 200444 China
| | - Xiangmin Meng
- grid.39436.3b0000 0001 2323 5732Cardiac Regeneration and Ageing Lab, Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People’s Hospital of Nantong), School of Medicine, Shanghai University, Nantong, 226011 China
| | - Zhenzhen Huang
- grid.39436.3b0000 0001 2323 5732Cardiac Regeneration and Ageing Lab, Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People’s Hospital of Nantong), School of Medicine, Shanghai University, Nantong, 226011 China ,grid.39436.3b0000 0001 2323 5732Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai, 200444 China
| | - Weitong Qi
- grid.39436.3b0000 0001 2323 5732Cardiac Regeneration and Ageing Lab, Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People’s Hospital of Nantong), School of Medicine, Shanghai University, Nantong, 226011 China ,grid.39436.3b0000 0001 2323 5732Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai, 200444 China
| | - Zhuhua Su
- grid.39436.3b0000 0001 2323 5732Cardiac Regeneration and Ageing Lab, Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People’s Hospital of Nantong), School of Medicine, Shanghai University, Nantong, 226011 China ,grid.39436.3b0000 0001 2323 5732Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai, 200444 China
| | - Chang Liu
- grid.39436.3b0000 0001 2323 5732Cardiac Regeneration and Ageing Lab, Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People’s Hospital of Nantong), School of Medicine, Shanghai University, Nantong, 226011 China ,grid.39436.3b0000 0001 2323 5732Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai, 200444 China
| | - H. Immo Lehmann
- grid.32224.350000 0004 0386 9924Cardiovascular Division of the Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114 USA
| | - Guoping Li
- grid.32224.350000 0004 0386 9924Cardiovascular Division of the Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114 USA
| | - Yu Huang
- grid.35030.350000 0004 1792 6846Department of Biomedical Sciences, City University of Hong Kong, Hong Kong, 999077 China
| | - Junjie Xiao
- Cardiac Regeneration and Ageing Lab, Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong, 226011, China. .,Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Life Science, Shanghai University, Shanghai, 200444, China.
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7
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Defining the molecular underpinnings controlling cardiomyocyte proliferation. Clin Sci (Lond) 2022; 136:911-934. [PMID: 35723259 DOI: 10.1042/cs20211180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 05/27/2022] [Accepted: 05/31/2022] [Indexed: 12/11/2022]
Abstract
Shortly after birth, mammalian cardiomyocytes (CM) exit the cell cycle and cease to proliferate. The inability of adult CM to replicate renders the heart particularly vulnerable to injury. Restoration of CM proliferation would be an attractive clinical target for regenerative therapies that can preserve contractile function and thus prevent the development of heart failure. Our review focuses on recent progress in understanding the tight regulation of signaling pathways and their downstream molecular mechanisms that underly the inability of CM to proliferate in vivo. In this review, we describe the temporal expression of cell cycle activators e.g., cyclin/Cdk complexes and their inhibitors including p16, p21, p27 and members of the retinoblastoma gene family during gestation and postnatal life. The differential impact of members of the E2f transcription factor family and microRNAs on the regulation of positive and negative cell cycle factors is discussed. This review also highlights seminal studies that identified the coordination of signaling mechanisms that can potently activate CM cell cycle re-entry including the Wnt/Ctnnb1, Hippo, Pi3K-Akt and Nrg1-Erbb2/4 pathways. We also present an up-to-date account of landmark studies analyzing the effect of various genes such as Argin, Dystrophin, Fstl1, Meis1, Pitx2 and Pkm2 that are responsible for either inhibition or activation of CM cell division. All these reports describe bona fide therapeutically targets that could guide future clinical studies toward cardiac repair.
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8
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de Sena-Tomás C, Aleman AG, Ford C, Varshney A, Yao D, Harrington JK, Saúde L, Ramialison M, Targoff KL. Activation of Nkx2.5 transcriptional program is required for adult myocardial repair. Nat Commun 2022; 13:2970. [PMID: 35624100 PMCID: PMC9142600 DOI: 10.1038/s41467-022-30468-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 05/03/2022] [Indexed: 11/09/2022] Open
Abstract
The cardiac developmental network has been associated with myocardial regenerative potential. However, the embryonic signals triggered following injury have yet to be fully elucidated. Nkx2.5 is a key causative transcription factor associated with human congenital heart disease and one of the earliest markers of cardiac progenitors, thus it serves as a promising candidate. Here, we show that cardiac-specific RNA-sequencing studies reveal a disrupted embryonic transcriptional profile in the adult Nkx2.5 loss-of-function myocardium. nkx2.5-/- fish exhibit an impaired ability to recover following ventricular apex amputation with diminished dedifferentiation and proliferation. Complex network analyses illuminate that Nkx2.5 is required to provoke proteolytic pathways necessary for sarcomere disassembly and to mount a proliferative response for cardiomyocyte renewal. Moreover, Nkx2.5 targets embedded in these distinct gene regulatory modules coordinate appropriate, multi-faceted injury responses. Altogether, our findings support a previously unrecognized, Nkx2.5-dependent regenerative circuit that invokes myocardial cell cycle re-entry, proteolysis, and mitochondrial metabolism to ensure effective regeneration in the teleost heart.
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Affiliation(s)
- Carmen de Sena-Tomás
- Division of Cardiology, Department of Pediatrics, College of Physicians & Surgeons, Columbia University, New York, NY, 10032, USA
| | - Angelika G Aleman
- Department of Physiology & Cellular Biophysics, College of Physicians & Surgeons, Columbia University, New York, NY, 10032, USA
| | - Caitlin Ford
- Department of Genetics & Development, College of Physicians & Surgeons, Columbia University, New York, NY, 10032, USA
| | - Akriti Varshney
- Monash Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
- Australian Regenerative Medicine Institute & Systems Biology Institute Australia, Monash University, Clayton, VIC, 3800, Australia
| | - Di Yao
- Division of Cardiology, Department of Pediatrics, College of Physicians & Surgeons, Columbia University, New York, NY, 10032, USA
| | - Jamie K Harrington
- Division of Cardiology, Department of Pediatrics, College of Physicians & Surgeons, Columbia University, New York, NY, 10032, USA
| | - Leonor Saúde
- Instituto de Medicina Molecular, Faculdade de Medicina da Universidade de Lisboa, 1649-028, Lisboa, Portugal
| | - Mirana Ramialison
- Australian Regenerative Medicine Institute & Systems Biology Institute Australia, Monash University, Clayton, VIC, 3800, Australia
- Murdoch Children's Research Institute & Department of Peadiatrics, The University of Melbourne, Parkville, VIC, 3052, Australia
| | - Kimara L Targoff
- Division of Cardiology, Department of Pediatrics, College of Physicians & Surgeons, Columbia University, New York, NY, 10032, USA.
- Columbia Stem Cell Initiative, Columbia University, New York, NY, 10032, USA.
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9
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Leonard EV, Figueroa RJ, Bussmann J, Lawson ND, Amigo JD, Siekmann AF. Regenerating vascular mural cells in zebrafish fin blood vessels are not derived from pre-existing mural cells and differentially require Pdgfrb signalling for their development. Development 2022; 149:274745. [PMID: 35297968 PMCID: PMC9058498 DOI: 10.1242/dev.199640] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 02/24/2022] [Indexed: 12/20/2022]
Abstract
ABSTRACT
Vascular networks comprise endothelial cells and mural cells, which include pericytes and smooth muscle cells. To elucidate the mechanisms controlling mural cell recruitment during development and tissue regeneration, we studied zebrafish caudal fin arteries. Mural cells colonizing arteries proximal to the body wrapped around them, whereas those in more distal regions extended protrusions along the proximo-distal vascular axis. Both cell populations expressed platelet-derived growth factor receptor β (pdgfrb) and the smooth muscle cell marker myosin heavy chain 11a (myh11a). Most wrapping cells in proximal locations additionally expressed actin alpha2, smooth muscle (acta2). Loss of Pdgfrb signalling specifically decreased mural cell numbers at the vascular front. Using lineage tracing, we demonstrate that precursor cells located in periarterial regions and expressing Pgdfrb can give rise to mural cells. Studying tissue regeneration, we did not find evidence that newly formed mural cells were derived from pre-existing cells. Together, our findings reveal conserved roles for Pdgfrb signalling in development and regeneration, and suggest a limited capacity of mural cells to self-renew or contribute to other cell types during tissue regeneration.
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Affiliation(s)
- Elvin V. Leonard
- Max Planck Institute for Molecular Biomedicine, Roentgenstr. 20, 48149 Münster, Germany
- Department of Cell and Developmental Biology, Perelman School of Medicine at the University of Pennsylvania, 1114 Biomedical Research Building, 421 Curie Boulevard, Philadelphia, PA 19104, USA
| | - Ricardo J. Figueroa
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Jeroen Bussmann
- Max Planck Institute for Molecular Biomedicine, Roentgenstr. 20, 48149 Münster, Germany
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research (LACDR), Leiden University, PO Box 9502, 2300 RA Leiden, The Netherlands
| | - Nathan D. Lawson
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Medical School, 364 Plantation Street, Worcester, MA 01605, USA
| | - Julio D. Amigo
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Arndt F. Siekmann
- Max Planck Institute for Molecular Biomedicine, Roentgenstr. 20, 48149 Münster, Germany
- Department of Cell and Developmental Biology, Perelman School of Medicine at the University of Pennsylvania, 1114 Biomedical Research Building, 421 Curie Boulevard, Philadelphia, PA 19104, USA
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Abstract
The adult mammalian heart is recalcitrant to regeneration after injury, in part due to the postmitotic nature of cardiomyocytes. Accumulating evidence suggests that cardiomyocyte proliferation in fetal or neonatal mammals and in regenerative non-mammalian models depends on a conducive metabolic state. Results from numerous studies in adult hearts indicate that conditions of relatively low fatty acid oxidation, low reactive oxygen species generation, and high glycolysis are required for induction of cardiomyocyte proliferation. Glycolysis appears particularly important because it provides branchpoint metabolites for several biosynthetic pathways that are essential for synthesis of nucleotides and nucleotide sugars, amino acids, and glycerophospholipids, all of which are required for daughter cell formation. In addition, the proliferative cardiomyocyte phenotype is supported in part by relatively low oxygen tensions and through the actions of critical transcription factors, coactivators, and signaling pathways that promote a more glycolytic and proliferative cardiomyocyte phenotype, such as hypoxia inducible factor 1α (Hif1α), Yes-associated protein (Yap), and ErbB2. Interventions that inhibit glycolysis or its integrated biosynthetic pathways almost universally impair cardiomyocyte proliferative capacity. Furthermore, metabolic enzymes that augment biosynthetic capacity such as phosphoenolpyruvate carboxykinase 2 and pyruvate kinase M2 appear to be amplifiers of cardiomyocyte proliferation. Collectively, these studies suggest that acquisition of a glycolytic and biosynthetic metabolic phenotype is a sine qua non of cardiomyocyte proliferation. Further knowledge of the regulatory mechanisms that control substrate partitioning to coordinate biosynthesis with energy provision could be leveraged to prompt or augment cardiomyocyte division and to promote cardiac repair.
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Affiliation(s)
- Tamer M A Mohamed
- Division of Cardiovascular Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, KY, USA
- Corresponding authors: Tamer M.A. Mohamed, PhD, Department of Medicine, Division of Cardiovascular Medicine, Institute of Molecular Cardiology, 580 S. Preston Street, Rm 121A, Louisville, KY 40202, USA.
| | - Riham Abouleisa
- Division of Cardiovascular Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, KY, USA
| | - Bradford G Hill
- Division of Environmental Medicine, Christina Lee Brown Envirome Institute, Diabetes and Obesity Center, University of Louisville, Louisville, KY, USA
- Bradford G. Hill, PhD, Department of Medicine, Christina Lee Brown Envirome Institute, Diabetes and Obesity Center, University of Louisville, 580 S. Preston Street, Rm 321E, Louisville, KY 40202, USA.
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Gyöngyösi M. Cell-Free Approaches and Therapeutic Biomolecules for Cardiac Regeneration. Biomolecules 2021; 11:biom11020161. [PMID: 33530565 PMCID: PMC7911580 DOI: 10.3390/biom11020161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Accepted: 01/25/2021] [Indexed: 11/24/2022] Open
Affiliation(s)
- Mariann Gyöngyösi
- Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, 1090 Vienna, Austria
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12
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de Gonzalo-Calvo D, Bär C. Going the Long Noncoding RNA Way Toward Cardiac Regeneration: Mapping Candidate Long Noncoding RNA Controllers of Regeneration. Can J Cardiol 2020; 37:374-376. [PMID: 32949689 DOI: 10.1016/j.cjca.2020.09.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/14/2020] [Accepted: 09/14/2020] [Indexed: 10/23/2022] Open
Affiliation(s)
- David de Gonzalo-Calvo
- Translational Research in Respiratory Medicine, Hospital Universitari Arnau de Vilanova-Santa María, Institute de Recerca Biomèdica de Lleida, Lleida, Spain; CIBER of Respiratory Diseases, Institute of Health Carlos III, Madrid, Spain.
| | - Christian Bär
- Institute of Molecular and Translational Therapeutic Strategies, Hannover Medical School, Hannover, Germany; REBIRTH Center for Translational Regenerative Medicine, Hannover Medical School, Hannover, Germany.
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