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Lang Y, Wang Q, Li R, Zhou X, Lin H, Xie Z, Li M, Su K, Xu J, Wang J, Yang X, Yang G, Teng Y. Generation of the Stmn2-Cre ERT2 mouse line targeting arterial endothelial cells. J Genet Genomics 2024:S1673-8527(24)00120-6. [PMID: 38825038 DOI: 10.1016/j.jgg.2024.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/22/2024] [Accepted: 05/23/2024] [Indexed: 06/04/2024]
Affiliation(s)
- Yiming Lang
- School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, China; State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences, Beijing Institute of Lifeomics, Beijing 102206, China
| | - Qingye Wang
- School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, China; State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences, Beijing Institute of Lifeomics, Beijing 102206, China
| | - Rongyu Li
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences, Beijing Institute of Lifeomics, Beijing 102206, China
| | - Xuetao Zhou
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences, Beijing Institute of Lifeomics, Beijing 102206, China; College of Life Sciences, Hebei University, Baoding, Hebei 071002, China
| | - Huisang Lin
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences, Beijing Institute of Lifeomics, Beijing 102206, China
| | - Zhongliang Xie
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences, Beijing Institute of Lifeomics, Beijing 102206, China; College of Life Sciences, Hebei University, Baoding, Hebei 071002, China
| | - Mingyue Li
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences, Beijing Institute of Lifeomics, Beijing 102206, China
| | - Kecao Su
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences, Beijing Institute of Lifeomics, Beijing 102206, China
| | - Jie Xu
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences, Beijing Institute of Lifeomics, Beijing 102206, China
| | - Jun Wang
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences, Beijing Institute of Lifeomics, Beijing 102206, China
| | - Xiao Yang
- School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, China; State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences, Beijing Institute of Lifeomics, Beijing 102206, China.
| | - Guan Yang
- State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences, Beijing Institute of Lifeomics, Beijing 102206, China; College of Life Sciences, Hebei University, Baoding, Hebei 071002, China.
| | - Yan Teng
- School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, China; State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences, Beijing Institute of Lifeomics, Beijing 102206, China; College of Life Sciences, Hebei University, Baoding, Hebei 071002, China.
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2
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Cordero J, Elsherbiny A, Wang Y, Jürgensen L, Constanty F, Günther S, Boerries M, Heineke J, Beisaw A, Leuschner F, Hassel D, Dobreva G. Leveraging chromatin state transitions for the identification of regulatory networks orchestrating heart regeneration. Nucleic Acids Res 2024; 52:4215-4233. [PMID: 38364861 PMCID: PMC11077086 DOI: 10.1093/nar/gkae085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 01/23/2024] [Accepted: 02/06/2024] [Indexed: 02/18/2024] Open
Abstract
The limited regenerative capacity of the human heart contributes to high morbidity and mortality worldwide. In contrast, zebrafish exhibit robust regenerative capacity, providing a powerful model for studying how to overcome intrinsic epigenetic barriers maintaining cardiac homeostasis and initiate regeneration. Here, we present a comprehensive analysis of the histone modifications H3K4me1, H3K4me3, H3K27me3 and H3K27ac during various stages of zebrafish heart regeneration. We found a vast gain of repressive chromatin marks one day after myocardial injury, followed by the acquisition of active chromatin characteristics on day four and a transition to a repressive state on day 14, and identified distinct transcription factor ensembles associated with these events. The rapid transcriptional response involves the engagement of super-enhancers at genes implicated in extracellular matrix reorganization and TOR signaling, while H3K4me3 breadth highly correlates with transcriptional activity and dynamic changes at genes involved in proteolysis, cell cycle activity, and cell differentiation. Using loss- and gain-of-function approaches, we identified transcription factors in cardiomyocytes and endothelial cells influencing cardiomyocyte dedifferentiation or proliferation. Finally, we detected significant evolutionary conservation between regulatory regions that drive zebrafish and neonatal mouse heart regeneration, suggesting that reactivating transcriptional and epigenetic networks converging on these regulatory elements might unlock the regenerative potential of adult human hearts.
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Affiliation(s)
- Julio Cordero
- Department of Cardiovascular Genomics and Epigenomics, European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Heidelberg/Mannheim, 69120 Heidelberg, Germany
| | - Adel Elsherbiny
- Department of Cardiovascular Genomics and Epigenomics, European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Yinuo Wang
- Department of Cardiovascular Genomics and Epigenomics, European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Lonny Jürgensen
- Department of Cardiology, Angiology and Pneumology, University Hospital Heidelberg, 69120 Heidelberg, Germany
| | - Florian Constanty
- Institute of Experimental Cardiology, University Hospital Heidelberg, 69120 Heidelberg, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Heidelberg/Mannheim, 69120 Heidelberg, Germany
| | - Stefan Günther
- Max-Planck-Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Melanie Boerries
- Institute of Medical Bioinformatics and Systems Medicine, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, 79110 Freiburg, Germany
- German Cancer Consortium (DKTK), Partner site Freiburg, a partnership between DKFZ and Medical Center - University of Freiburg, 69110 Heidelberg, Germany
| | - Joerg Heineke
- Department of Cardiovascular Physiology, European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Heidelberg/Mannheim, 69120 Heidelberg, Germany
| | - Arica Beisaw
- Institute of Experimental Cardiology, University Hospital Heidelberg, 69120 Heidelberg, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Heidelberg/Mannheim, 69120 Heidelberg, Germany
| | - Florian Leuschner
- Department of Cardiology, Angiology and Pneumology, University Hospital Heidelberg, 69120 Heidelberg, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Heidelberg/Mannheim, 69120 Heidelberg, Germany
| | - David Hassel
- Department of Cardiology, Angiology and Pneumology, University Hospital Heidelberg, 69120 Heidelberg, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Heidelberg/Mannheim, 69120 Heidelberg, Germany
| | - Gergana Dobreva
- Department of Cardiovascular Genomics and Epigenomics, European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Heidelberg/Mannheim, 69120 Heidelberg, Germany
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3
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Cardeira-da-Silva J, Wang Q, Sagvekar P, Mintcheva J, Latting S, Günther S, Ramadass R, Yekelchyk M, Preussner J, Looso M, Junker JP, Stainier DYR. Antigen presentation plays positive roles in the regenerative response to cardiac injury in zebrafish. Nat Commun 2024; 15:3637. [PMID: 38684665 PMCID: PMC11058276 DOI: 10.1038/s41467-024-47430-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 03/28/2024] [Indexed: 05/02/2024] Open
Abstract
In contrast to adult mammals, adult zebrafish can fully regenerate injured cardiac tissue, and this regeneration process requires an adequate and tightly controlled immune response. However, which components of the immune response are required during regeneration is unclear. Here, we report positive roles for the antigen presentation-adaptive immunity axis during zebrafish cardiac regeneration. We find that following the initial innate immune response, activated endocardial cells (EdCs), as well as immune cells, start expressing antigen presentation genes. We also observe that T helper cells, a.k.a. Cd4+ T cells, lie in close physical proximity to these antigen-presenting EdCs. We targeted Major Histocompatibility Complex (MHC) class II antigen presentation by generating cd74a; cd74b mutants, which display a defective immune response. In these mutants, Cd4+ T cells and activated EdCs fail to efficiently populate the injured tissue and EdC proliferation is significantly decreased. cd74a; cd74b mutants exhibit additional defects in cardiac regeneration including reduced cardiomyocyte dedifferentiation and proliferation. Notably, Cd74 also becomes activated in neonatal mouse EdCs following cardiac injury. Altogether, these findings point to positive roles for antigen presentation during cardiac regeneration, potentially involving interactions between activated EdCs, classical antigen-presenting cells, and Cd4+ T cells.
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Affiliation(s)
- João Cardeira-da-Silva
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.
- DZHK German Centre for Cardiovascular Research, Partner Site Rhine-Main, Bad Nauheim, Germany.
- Cardio-Pulmonary Institute (CPI), Bad Nauheim, Germany.
| | - Qianchen Wang
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
- DZHK German Centre for Cardiovascular Research, Partner Site Rhine-Main, Bad Nauheim, Germany
- Cardio-Pulmonary Institute (CPI), Bad Nauheim, Germany
| | - Pooja Sagvekar
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
- DZHK German Centre for Cardiovascular Research, Partner Site Rhine-Main, Bad Nauheim, Germany
| | - Janita Mintcheva
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin Institute for Medical Systems Biology, Berlin, Germany
- Humboldt University of Berlin, Berlin, Germany
| | - Stephan Latting
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Stefan Günther
- DZHK German Centre for Cardiovascular Research, Partner Site Rhine-Main, Bad Nauheim, Germany
- Cardio-Pulmonary Institute (CPI), Bad Nauheim, Germany
- Bioinformatics and Deep Sequencing Platform, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Radhan Ramadass
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Michail Yekelchyk
- Cardio-Pulmonary Institute (CPI), Bad Nauheim, Germany
- Bioinformatics and Deep Sequencing Platform, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Jens Preussner
- Cardio-Pulmonary Institute (CPI), Bad Nauheim, Germany
- Bioinformatics Core Unit (BCU), Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Mario Looso
- DZHK German Centre for Cardiovascular Research, Partner Site Rhine-Main, Bad Nauheim, Germany
- Cardio-Pulmonary Institute (CPI), Bad Nauheim, Germany
- Bioinformatics Core Unit (BCU), Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Jan Philipp Junker
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin Institute for Medical Systems Biology, Berlin, Germany
- DZHK German Centre for Cardiovascular Research, Partner Site Berlin, Berlin, Germany
- Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Didier Y R Stainier
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany.
- DZHK German Centre for Cardiovascular Research, Partner Site Rhine-Main, Bad Nauheim, Germany.
- Cardio-Pulmonary Institute (CPI), Bad Nauheim, Germany.
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4
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Chatterjee S, Leach-Mehrwald M, Huang CK, Xiao K, Fuchs M, Otto M, Lu D, Dang V, Winkler T, Dunbar CE, Thum T, Bär C. Telomerase is essential for cardiac differentiation and sustained metabolism of human cardiomyocytes. Cell Mol Life Sci 2024; 81:196. [PMID: 38658440 PMCID: PMC11043037 DOI: 10.1007/s00018-024-05239-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 03/29/2024] [Accepted: 04/12/2024] [Indexed: 04/26/2024]
Abstract
Telomeres as the protective ends of linear chromosomes, are synthesized by the enzyme telomerase (TERT). Critically short telomeres essentially contribute to aging-related diseases and are associated with a broad spectrum of disorders known as telomeropathies. In cardiomyocytes, telomere length is strongly correlated with cardiomyopathies but it remains ambiguous whether short telomeres are the cause or the result of the disease. In this study, we employed an inducible CRISPRi human induced pluripotent stem cell (hiPSC) line to silence TERT expression enabling the generation of hiPSCs and hiPSC-derived cardiomyocytes with long and short telomeres. Reduced telomerase activity and shorter telomere lengths of hiPSCs induced global transcriptomic changes associated with cardiac developmental pathways. Consequently, the differentiation potential towards cardiomyocytes was strongly impaired and single cell RNA sequencing revealed a shift towards a more smooth muscle cell like identity in the cells with the shortest telomeres. Poor cardiomyocyte function and increased sensitivity to stress directly correlated with the extent of telomere shortening. Collectively our data demonstrates a TERT dependent cardiomyogenic differentiation defect, highlighting the CRISPRi TERT hiPSCs model as a powerful platform to study the mechanisms and consequences of short telomeres in the heart and also in the context of telomeropathies.
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Affiliation(s)
- Shambhabi Chatterjee
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
- Center of Translational Regenerative Medicine, Hannover Medical School, Hannover, Germany
- Fraunhofer Institute for Toxicology and Experimental Medicine, Hannover, Germany
| | - Megan Leach-Mehrwald
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
| | - Cheng-Kai Huang
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
| | - Ke Xiao
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
- Fraunhofer Institute for Toxicology and Experimental Medicine, Hannover, Germany
| | - Maximilian Fuchs
- Fraunhofer Institute for Toxicology and Experimental Medicine, Hannover, Germany
| | - Mandy Otto
- Fraunhofer Institute for Toxicology and Experimental Medicine, Hannover, Germany
| | - Dongchao Lu
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
- Center of Translational Regenerative Medicine, Hannover Medical School, Hannover, Germany
| | - Vinh Dang
- Translational Stem Cell Biology Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Thomas Winkler
- Translational Stem Cell Biology Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Cynthia E Dunbar
- Translational Stem Cell Biology Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Thomas Thum
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
- Center of Translational Regenerative Medicine, Hannover Medical School, Hannover, Germany
| | - Christian Bär
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany.
- Center of Translational Regenerative Medicine, Hannover Medical School, Hannover, Germany.
- Fraunhofer Institute for Toxicology and Experimental Medicine, Hannover, Germany.
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5
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Sun J, Peterson EA, Chen X, Wang J. ptx3a + fibroblast/epicardial cells provide a transient macrophage niche to promote heart regeneration. Cell Rep 2024; 43:114092. [PMID: 38607913 PMCID: PMC11092985 DOI: 10.1016/j.celrep.2024.114092] [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: 11/17/2023] [Revised: 02/28/2024] [Accepted: 03/27/2024] [Indexed: 04/14/2024] Open
Abstract
Macrophages conduct critical roles in heart repair, but the niche required to nurture and anchor them is poorly studied. Here, we investigated the macrophage niche in the regenerating heart. We analyzed cell-cell interactions through published single-cell RNA sequencing datasets and identified a strong interaction between fibroblast/epicardial (Fb/Epi) cells and macrophages. We further visualized the association of macrophages with Fb/Epi cells and the blockage of macrophage response without Fb/Epi cells in the regenerating zebrafish heart. Moreover, we found that ptx3a+ epicardial cells associate with reparative macrophages, and their depletion resulted in fewer reparative macrophages. Further, we identified csf1a expression in ptx3a+ cells and determined that pharmacological inhibition of the csf1a pathway or csf1a knockout blocked the reparative macrophage response. Moreover, we found that genetic overexpression of csf1a enhanced the reparative macrophage response with or without heart injury. Altogether, our studies illuminate a cardiac Fb/Epi niche, which mediates a beneficial macrophage response after heart injury.
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Affiliation(s)
- Jisheng Sun
- Cardiology Division, School of Medicine, Emory University, Atlanta, GA 30322, USA
| | - Elizabeth A Peterson
- Cardiology Division, School of Medicine, Emory University, Atlanta, GA 30322, USA
| | - Xin Chen
- Cardiology Division, School of Medicine, Emory University, Atlanta, GA 30322, USA
| | - Jinhu Wang
- Cardiology Division, School of Medicine, Emory University, Atlanta, GA 30322, USA.
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6
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Harrington A, Moore-Morris T. Cardiac fibroblasts in heart failure and regeneration. Front Cell Dev Biol 2024; 12:1388378. [PMID: 38699159 PMCID: PMC11063332 DOI: 10.3389/fcell.2024.1388378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Accepted: 04/04/2024] [Indexed: 05/05/2024] Open
Abstract
In heart disease patients, myocyte loss or malfunction invariably leads to fibrosis, involving the activation and accumulation of cardiac fibroblasts that deposit large amounts of extracellular matrix. Apart from the vital replacement fibrosis that follows myocardial infarction, ensuring structural integrity of the heart, cardiac fibrosis is largely considered to be maladaptive. Much work has focused on signaling pathways driving the fibrotic response, including TGF-β signaling and biomechanical strain. However, currently there are very limited options for reducing cardiac fibrosis, with most patients suffering from chronic fibrosis. The adult heart has very limited regenerative capacity. However, cardiac regeneration has been reported in humans perinatally, and reproduced experimentally in neonatal mice. Furthermore, model organisms such as the zebrafish are able to fully regenerate their hearts following massive cardiac damage into adulthood. Increasing evidence points to a transient immuno-fibrotic response as being key for cardiac regeneration to occur. The mechanisms at play in this context are changing our views on fibrosis, and could be leveraged to promote beneficial remodeling in heart failure patients. This review summarizes our current knowledge of fibroblast properties associated with the healthy, failing or regenerating heart. Furthermore, we explore how cardiac fibroblast activity could be targeted to assist future therapeutic approaches.
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Affiliation(s)
| | - Thomas Moore-Morris
- Institut de Génomique Fonctionnelle, University of Montpellier, CNRS, INSERM, Montpellier, France
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7
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Yuan Q, Duren Z. Inferring gene regulatory networks from single-cell multiome data using atlas-scale external data. Nat Biotechnol 2024:10.1038/s41587-024-02182-7. [PMID: 38609714 DOI: 10.1038/s41587-024-02182-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 02/26/2024] [Indexed: 04/14/2024]
Abstract
Existing methods for gene regulatory network (GRN) inference rely on gene expression data alone or on lower resolution bulk data. Despite the recent integration of chromatin accessibility and RNA sequencing data, learning complex mechanisms from limited independent data points still presents a daunting challenge. Here we present LINGER (Lifelong neural network for gene regulation), a machine-learning method to infer GRNs from single-cell paired gene expression and chromatin accessibility data. LINGER incorporates atlas-scale external bulk data across diverse cellular contexts and prior knowledge of transcription factor motifs as a manifold regularization. LINGER achieves a fourfold to sevenfold relative increase in accuracy over existing methods and reveals a complex regulatory landscape of genome-wide association studies, enabling enhanced interpretation of disease-associated variants and genes. Following the GRN inference from reference single-cell multiome data, LINGER enables the estimation of transcription factor activity solely from bulk or single-cell gene expression data, leveraging the abundance of available gene expression data to identify driver regulators from case-control studies.
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Affiliation(s)
- Qiuyue Yuan
- Center for Human Genetics, Department of Genetics and Biochemistry, Clemson University, Greenwood, SC, USA
| | - Zhana Duren
- Center for Human Genetics, Department of Genetics and Biochemistry, Clemson University, Greenwood, SC, USA.
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8
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Li Z, Brittan M, Mills NL. A Multimodal Omics Framework to Empower Target Discovery for Cardiovascular Regeneration. Cardiovasc Drugs Ther 2024; 38:223-236. [PMID: 37421484 PMCID: PMC10959818 DOI: 10.1007/s10557-023-07484-7] [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] [Accepted: 06/19/2023] [Indexed: 07/10/2023]
Abstract
Ischaemic heart disease is a global healthcare challenge with high morbidity and mortality. Early revascularisation in acute myocardial infarction has improved survival; however, limited regenerative capacity and microvascular dysfunction often lead to impaired function and the development of heart failure. New mechanistic insights are required to identify robust targets for the development of novel strategies to promote regeneration. Single-cell RNA sequencing (scRNA-seq) has enabled profiling and analysis of the transcriptomes of individual cells at high resolution. Applications of scRNA-seq have generated single-cell atlases for multiple species, revealed distinct cellular compositions for different regions of the heart, and defined multiple mechanisms involved in myocardial injury-induced regeneration. In this review, we summarise findings from studies of healthy and injured hearts in multiple species and spanning different developmental stages. Based on this transformative technology, we propose a multi-species, multi-omics, meta-analysis framework to drive the discovery of new targets to promote cardiovascular regeneration.
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Affiliation(s)
- Ziwen Li
- BHF Centre for Cardiovascular Science, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK.
| | - Mairi Brittan
- BHF Centre for Cardiovascular Science, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Nicholas L Mills
- BHF Centre for Cardiovascular Science, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
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9
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Kopecky BJ, Lavine KJ. Cardiac macrophage metabolism in health and disease. Trends Endocrinol Metab 2024; 35:249-262. [PMID: 37993313 PMCID: PMC10949041 DOI: 10.1016/j.tem.2023.10.011] [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: 08/11/2023] [Revised: 10/25/2023] [Accepted: 10/30/2023] [Indexed: 11/24/2023]
Abstract
Cardiac macrophages are essential mediators of cardiac development, tissue homeostasis, and response to injury. Cell-intrinsic shifts in metabolism and availability of metabolites regulate macrophage function. The human and mouse heart contain a heterogeneous compilation of cardiac macrophages that are derived from at least two distinct lineages. In this review, we detail the unique functional roles and metabolic profiles of tissue-resident and monocyte-derived cardiac macrophages during embryonic development and adult tissue homeostasis and in response to pathologic and physiologic stressors. We discuss the metabolic preferences of each macrophage lineage and how metabolism influences monocyte fate specification. Finally, we highlight the contribution of cardiac macrophages and derived metabolites on cell-cell communication, metabolic health, and disease pathogenesis.
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Affiliation(s)
- Benjamin J Kopecky
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Kory J Lavine
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA; Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA; Department of Developmental Biology, Washington University School of Medicine, St. Louis, MO, USA.
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10
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Aguilar SV, Cui M, Tan W, Sanchez-Ortiz E, Bassel-Duby R, Liu N, Olson EN. The PD-1-PD-L1 pathway maintains an immunosuppressive environment essential for neonatal heart regeneration. NATURE CARDIOVASCULAR RESEARCH 2024; 3:389-402. [PMID: 38737787 PMCID: PMC11086661 DOI: 10.1038/s44161-024-00447-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 02/05/2024] [Indexed: 05/14/2024]
Abstract
The adult mouse heart responds to injury by scarring with consequent loss of contractile function, whereas the neonatal heart possesses the ability to regenerate. Activation of the immune system is among the first events upon tissue injury. It has been shown that immune response kinetics differ between regeneration and pathological remodeling, yet the underlying mechanisms of the distinct immune reactions during tissue healing remain unclear. Here we show that the immunomodulatory PD-1-PD-L1 pathway is highly active in regenerative neonatal hearts but rapidly silenced later in life. Deletion of the PD-1 receptor or inactivation of its ligand PD-L1 prevented regeneration of neonatal hearts after injury. Disruption of the pathway during neonatal cardiac injury led to increased inflammation and aberrant T cell activation, which ultimately impaired cardiac regeneration. Our findings reveal an immunomodulatory and cardioprotective role for the PD-1-PD-L1 pathway in heart regeneration and offer potential avenues for the control of adult tissue regeneration.
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Affiliation(s)
- Stephanie Vargas Aguilar
- Department of Molecular Biology and the Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
- These authors contributed equally: Stephanie Vargas Aguilar, Miao Cui
| | - Miao Cui
- Department of Molecular Biology and the Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Department of Cardiology, Boston Children’s Hospital and Department of Genetics, Harvard Medical School, Boston, MA, USA
- These authors contributed equally: Stephanie Vargas Aguilar, Miao Cui
| | - Wei Tan
- Department of Molecular Biology and the Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Efrain Sanchez-Ortiz
- Department of Molecular Biology and the Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Rhonda Bassel-Duby
- Department of Molecular Biology and the Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Ning Liu
- Department of Molecular Biology and the Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Eric N. Olson
- Department of Molecular Biology and the Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
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11
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Li RG, Li X, Morikawa Y, Grisanti-Canozo FJ, Meng F, Tsai CR, Zhao Y, Liu L, Kim J, Xie B, Klysik E, Liu S, Samee MAH, Martin JF. YAP induces a neonatal-like pro-renewal niche in the adult heart. NATURE CARDIOVASCULAR RESEARCH 2024; 3:283-300. [PMID: 38510108 PMCID: PMC10954255 DOI: 10.1038/s44161-024-00428-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 01/12/2024] [Indexed: 03/22/2024]
Abstract
After myocardial infarction (MI), mammalian hearts do not regenerate, and the microenvironment is disrupted. Hippo signaling loss of function with activation of transcriptional co-factor YAP induces heart renewal and rebuilds the post-MI microenvironment. In this study, we investigated adult renewal-competent mouse hearts expressing an active version of YAP, called YAP5SA, in cardiomyocytes (CMs). Spatial transcriptomics and single-cell RNA sequencing revealed a conserved, renewal-competent CM cell state called adult (a)CM2 with high YAP activity. aCM2 co-localized with cardiac fibroblasts (CFs) expressing complement pathway component C3 and macrophages (MPs) expressing C3ar1 receptor to form a cellular triad in YAP5SA hearts and renewal-competent neonatal hearts. Although aCM2 was detected in adult mouse and human hearts, the cellular triad failed to co-localize in these non-renewing hearts. C3 and C3ar1 loss-of-function experiments indicated that C3a signaling between MPs and CFs was required to assemble the pro-renewal aCM2, C3+ CF and C3ar1+ MP cellular triad.
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Affiliation(s)
- Rich Gang Li
- Cardiomyocyte Renewal Laboratory, Texas Heart Institute, Houston, TX, USA
- McGill Gene Editing Laboratory, Texas Heart Institute, Houston, TX, USA
- These authors contributed equally: Rich Gang Li, Xiao Li
| | - Xiao Li
- McGill Gene Editing Laboratory, Texas Heart Institute, Houston, TX, USA
- These authors contributed equally: Rich Gang Li, Xiao Li
| | - Yuka Morikawa
- Cardiomyocyte Renewal Laboratory, Texas Heart Institute, Houston, TX, USA
| | - Francisco J. Grisanti-Canozo
- Cardiomyocyte Renewal Laboratory, Texas Heart Institute, Houston, TX, USA
- Department of Integrative Physiology, Baylor College of Medicine, Houston, TX, USA
| | - Fansen Meng
- Department of Integrative Physiology, Baylor College of Medicine, Houston, TX, USA
| | - Chang-Ru Tsai
- Department of Integrative Physiology, Baylor College of Medicine, Houston, TX, USA
| | - Yi Zhao
- McGill Gene Editing Laboratory, Texas Heart Institute, Houston, TX, USA
| | - Lin Liu
- McGill Gene Editing Laboratory, Texas Heart Institute, Houston, TX, USA
| | - Jong Kim
- Cardiomyocyte Renewal Laboratory, Texas Heart Institute, Houston, TX, USA
| | - Bing Xie
- Department of Integrative Physiology, Baylor College of Medicine, Houston, TX, USA
| | - Elzbieta Klysik
- Department of Integrative Physiology, Baylor College of Medicine, Houston, TX, USA
| | - Shijie Liu
- Cardiomyocyte Renewal Laboratory, Texas Heart Institute, Houston, TX, USA
| | - Md Abul Hassan Samee
- Department of Integrative Physiology, Baylor College of Medicine, Houston, TX, USA
| | - James F. Martin
- Cardiomyocyte Renewal Laboratory, Texas Heart Institute, Houston, TX, USA
- McGill Gene Editing Laboratory, Texas Heart Institute, Houston, TX, USA
- Department of Integrative Physiology, Baylor College of Medicine, Houston, TX, USA
- Center for Organ Repair and Renewal, Baylor College of Medicine, Houston, TX, USA
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12
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Simkin J, Aloysius A, Adam M, Safaee F, Donahue RR, Biswas S, Lakhani Z, Gensel JC, Thybert D, Potter S, Seifert AW. Tissue-resident macrophages specifically express Lactotransferrin and Vegfc during ear pinna regeneration in spiny mice. Dev Cell 2024; 59:496-516.e6. [PMID: 38228141 PMCID: PMC10922778 DOI: 10.1016/j.devcel.2023.12.017] [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: 01/17/2022] [Revised: 05/30/2023] [Accepted: 12/21/2023] [Indexed: 01/18/2024]
Abstract
The details of how macrophages control different healing trajectories (regeneration vs. scar formation) remain poorly defined. Spiny mice (Acomys spp.) can regenerate external ear pinnae tissue, whereas lab mice (Mus musculus) form scar tissue in response to an identical injury. Here, we used this dual species system to dissect macrophage phenotypes between healing modes. We identified secreted factors from activated Acomys macrophages that induce a pro-regenerative phenotype in fibroblasts from both species. Transcriptional profiling of Acomys macrophages and subsequent in vitro tests identified VEGFC, PDGFA, and Lactotransferrin (LTF) as potential pro-regenerative modulators. Examining macrophages in vivo, we found that Acomys-resident macrophages secreted VEGFC and LTF, whereas Mus macrophages do not. Lastly, we demonstrate the requirement for VEGFC during regeneration and find that interrupting lymphangiogenesis delays blastema and new tissue formation. Together, our results demonstrate that cell-autonomous mechanisms govern how macrophages react to the same stimuli to differentially produce factors that facilitate regeneration.
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Affiliation(s)
- Jennifer Simkin
- Department of Biology, University of Kentucky, Lexington, KY 40506, USA; Department of Orthopaedic Surgery, LSU Health-New Orleans, New Orleans, LA 70112, USA.
| | - Ajoy Aloysius
- Department of Biology, University of Kentucky, Lexington, KY 40506, USA
| | - Mike Adam
- Department of Pediatrics, University of Cincinnati Children's Hospital Medical Center, Division of Developmental Biology, Cincinnati, OH 45229, USA
| | - Fatemeh Safaee
- Department of Biology, University of Kentucky, Lexington, KY 40506, USA
| | - Renée R Donahue
- Department of Biology, University of Kentucky, Lexington, KY 40506, USA
| | - Shishir Biswas
- Department of Biology, University of Kentucky, Lexington, KY 40506, USA
| | - Zohaib Lakhani
- Department of Orthopaedic Surgery, LSU Health-New Orleans, New Orleans, LA 70112, USA
| | - John C Gensel
- Department of Physiology, University of Kentucky, Lexington, KY 40506, USA; Spinal Cord and Brain Injury Research Center, University of Kentucky, Lexington, KY 40506, USA
| | - David Thybert
- European Bioinformatics Institute (EMBL-EBI), Cambridge, UK
| | - Steven Potter
- Department of Pediatrics, University of Cincinnati Children's Hospital Medical Center, Division of Developmental Biology, Cincinnati, OH 45229, USA
| | - Ashley W Seifert
- Department of Biology, University of Kentucky, Lexington, KY 40506, USA; Spinal Cord and Brain Injury Research Center, University of Kentucky, Lexington, KY 40506, USA.
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13
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Hu T, Malek Mohammadi M, Ebach F, Hesse M, Kotlikoff MI, Fleischmann BK. Right ventricular cardiomyocyte expansion accompanies cardiac regeneration in newborn mice after large left ventricular infarcts. JCI Insight 2024; 9:e176281. [PMID: 38319719 PMCID: PMC11143925 DOI: 10.1172/jci.insight.176281] [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: 09/29/2023] [Accepted: 01/22/2024] [Indexed: 02/07/2024] Open
Abstract
Cauterization of the root of the left coronary artery (LCA) in the neonatal heart on postnatal day 1 (P1) resulted in large, reproducible lesions of the left ventricle (LV), and an attendant marked adaptive response in the right ventricle (RV). The response of both chambers to LV myocardial infarction involved enhanced cardiomyocyte (CM) division and binucleation, as well as LV revascularization, leading to restored heart function within 7 days post surgery (7 dps). By contrast, infarction of P3 mice resulted in cardiac scarring without a significant regenerative and adaptive response of the LV and the RV, leading to subsequent heart failure and death within 7 dps. The prominent RV myocyte expansion in P1 mice involved an acute increase in pulmonary arterial pressure and a unique gene regulatory response, leading to an increase in RV mass and preserved heart function. Thus, distinct adaptive mechanisms in the RV, such as CM proliferation and RV expansion, enable marked cardiac regeneration of the infarcted LV at P1 and full functional recovery.
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Affiliation(s)
- Tianyuan Hu
- Institute of Physiology I, Life and Brain Center, Medical Faculty, University of Bonn, Germany
| | - Mona Malek Mohammadi
- Institute of Physiology I, Life and Brain Center, Medical Faculty, University of Bonn, Germany
| | - Fabian Ebach
- Institute of Physiology I, Life and Brain Center, Medical Faculty, University of Bonn, Germany
- Department of Neonatology and Pediatric Intensive Care, University Hospital Bonn, Germany
| | - Michael Hesse
- Institute of Physiology I, Life and Brain Center, Medical Faculty, University of Bonn, Germany
| | | | - Bernd K. Fleischmann
- Institute of Physiology I, Life and Brain Center, Medical Faculty, University of Bonn, Germany
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14
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Weinberger M, Simões FC, Gungoosingh T, Sauka-Spengler T, Riley PR. Distinct epicardial gene regulatory programs drive development and regeneration of the zebrafish heart. Dev Cell 2024; 59:351-367.e6. [PMID: 38237592 DOI: 10.1016/j.devcel.2023.12.012] [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: 08/05/2022] [Revised: 08/12/2023] [Accepted: 12/20/2023] [Indexed: 02/08/2024]
Abstract
Unlike the adult mammalian heart, which has limited regenerative capacity, the zebrafish heart fully regenerates following injury. Reactivation of cardiac developmental programs is considered key to successfully regenerating the heart, yet the regulation underlying the response to injury remains elusive. Here, we compared the transcriptome and epigenome of the developing and regenerating zebrafish epicardia. We identified epicardial enhancer elements with specific activity during development or during adult heart regeneration. By generating gene regulatory networks associated with epicardial development and regeneration, we inferred genetic programs driving each of these processes, which were largely distinct. Loss of Hif1ab, Nrf1, Tbx2b, and Zbtb7a, central regulators of the regenerating epicardial network, in injured hearts resulted in elevated epicardial cell numbers infiltrating the wound and excess fibrosis after cryoinjury. Our work identifies differences between the regulatory blueprint deployed during epicardial development and regeneration, underlining that heart regeneration goes beyond the reactivation of developmental programs.
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Affiliation(s)
- Michael Weinberger
- Department of Physiology, Anatomy and Genetics, Institute of Developmental & Regenerative Medicine, University of Oxford, Oxford OX3 7TY, Oxfordshire, UK; Radcliffe Department of Medicine, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford OX3 9DS, Oxfordshire, UK
| | - Filipa C Simões
- Department of Physiology, Anatomy and Genetics, Institute of Developmental & Regenerative Medicine, University of Oxford, Oxford OX3 7TY, Oxfordshire, UK
| | - Trishalee Gungoosingh
- Department of Physiology, Anatomy and Genetics, Institute of Developmental & Regenerative Medicine, University of Oxford, Oxford OX3 7TY, Oxfordshire, UK
| | - Tatjana Sauka-Spengler
- Radcliffe Department of Medicine, MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford OX3 9DS, Oxfordshire, UK; Stowers Institute for Medical Research, Kansas City, MO, USA.
| | - Paul R Riley
- Department of Physiology, Anatomy and Genetics, Institute of Developmental & Regenerative Medicine, University of Oxford, Oxford OX3 7TY, Oxfordshire, UK.
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15
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Weinberger M, Riley PR. Animal models to study cardiac regeneration. Nat Rev Cardiol 2024; 21:89-105. [PMID: 37580429 DOI: 10.1038/s41569-023-00914-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/17/2023] [Indexed: 08/16/2023]
Abstract
Permanent fibrosis and chronic deterioration of heart function in patients after myocardial infarction present a major health-care burden worldwide. In contrast to the restricted potential for cellular and functional regeneration of the adult mammalian heart, a robust capacity for cardiac regeneration is seen during the neonatal period in mammals as well as in the adults of many fish and amphibian species. However, we lack a complete understanding as to why cardiac regeneration takes place more efficiently in some species than in others. The capacity of the heart to regenerate after injury is controlled by a complex network of cellular and molecular mechanisms that form a regulatory landscape, either permitting or restricting regeneration. In this Review, we provide an overview of the diverse array of vertebrates that have been studied for their cardiac regenerative potential and discuss differential heart regeneration outcomes in closely related species. Additionally, we summarize current knowledge about the core mechanisms that regulate cardiac regeneration across vertebrate species.
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Affiliation(s)
- Michael Weinberger
- Institute of Developmental & Regenerative Medicine, University of Oxford, Oxford, UK
- MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Paul R Riley
- Institute of Developmental & Regenerative Medicine, University of Oxford, Oxford, UK.
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16
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Bi T, Zhou Y, Mao L, Liang P, Liu J, Yang L, Ren G, Mazhar M, Shen H, Liu P, Spáčil R, Guo Q, Luo G, Yang S, Ren W. Zhilong Huoxue Tongyu capsule alleviates myocardial fibrosis by improving endothelial cell dysfunction. J Tradit Complement Med 2024; 14:40-54. [PMID: 38223805 PMCID: PMC10785151 DOI: 10.1016/j.jtcme.2023.07.001] [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: 03/29/2023] [Revised: 06/06/2023] [Accepted: 07/06/2023] [Indexed: 01/16/2024] Open
Abstract
Background and aim Zhilong Huoxue Tongyu (ZL) capsule is a classical traditional Chinese medicine (TCM) with satisfactory curative effects. Endothelial cell (EC) dysfunction plays an important role during myocardial fibrosis (MF). But the therapeutic effect of ZL capsule on EC dysfunction remains unknown in the development of MF. This study aims to investigate the effect of ZL capsule on EC dysfunction during MF in vivo. Experimental procedure The model of MF is established in vivo by injecting isoproterenol for 14 days, simultaneously, we examined the therapeutic effect of ZL capsule on MF in vivo. An integrative approach combining biomarker examination, echocardiography and myocardial fibrosis condition using Hematoxylin-eosin staining, Masson staining, and Sirius red staining were performed to assess the efficacy of ZL capsule against MF. Subsequently, comprehensive immunofluorescence staining was performed to evaluate the therapeutic effect of ZL capsule on EC dysfunction. Results and conclusion Prior to experiments, analysis of the published single-cell sequencing data was performed and it was discovered that EC dysfunction plays an important role. Further pharmacological results showed that ZL capsule could alleviate fibrosis injury and collagen fiber deposition. The mechanism investigation results showed that the endothelial-to-mesenchymal transition (EndMT) and MHC class-II (MHC-II) expression in EC were improved. In addition, ZL capsule can attenuate the inflammatory response during MF by intervening the activation of CD4+T cell mediated by EC. For the first time, we provided evidence that ZL capsule could improve MF by alleviating EC dysfunction via the regulation of EndMT and expression of MHC-II. Taxonomy classification by evise Myocardial fibrosis, Chinese Herbal Medicine, Traditional Medicine, Endothelium, dysfunction, Endothelial-to-mesenchymal transition.
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Affiliation(s)
- Tao Bi
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, China
- Institute of Integrated Chinese and Western Medicine, Southwest Medical University, Luzhou, 646000, China
| | - Yanan Zhou
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, China
- Institute of Integrated Chinese and Western Medicine, Southwest Medical University, Luzhou, 646000, China
| | - Linshen Mao
- Department of Cardiovascular Medicine, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Pan Liang
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, China
- Institute of Integrated Chinese and Western Medicine, Southwest Medical University, Luzhou, 646000, China
- State Key Laboratories for Quality Research in Chinese Medicines, Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, 853, China
| | - Jiali Liu
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, China
- Institute of Integrated Chinese and Western Medicine, Southwest Medical University, Luzhou, 646000, China
| | - Luyin Yang
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, China
- Institute of Integrated Chinese and Western Medicine, Southwest Medical University, Luzhou, 646000, China
| | - Guilin Ren
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, China
- Institute of Integrated Chinese and Western Medicine, Southwest Medical University, Luzhou, 646000, China
| | - Maryam Mazhar
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, China
- The National T.C.M Service Export Base of the Affiliated T.C.M Hospital of Southwest Medical University, Luzhou, 646000, China
- Institute of Integrated Chinese and Western Medicine, Southwest Medical University, Luzhou, 646000, China
| | - Hongping Shen
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, China
- Institute of Integrated Chinese and Western Medicine, Southwest Medical University, Luzhou, 646000, China
| | - Ping Liu
- Department of Cardiovascular Medicine, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Roman Spáčil
- The Czech Center for Traditional Chinese Medicine, Jeremenkova 1211/40, Olomouc, 77900, Czech Republic
| | - Qing Guo
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, China
- Institute of Integrated Chinese and Western Medicine, Southwest Medical University, Luzhou, 646000, China
| | - Gang Luo
- Department of Cardiovascular Medicine, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Sijin Yang
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, China
- The National T.C.M Service Export Base of the Affiliated T.C.M Hospital of Southwest Medical University, Luzhou, 646000, China
- Institute of Integrated Chinese and Western Medicine, Southwest Medical University, Luzhou, 646000, China
- State Key Laboratories for Quality Research in Chinese Medicines, Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, 853, China
| | - Wei Ren
- National Traditional Chinese Medicine Clinical Research Base and Drug Research Center of the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, 646000, China
- The National T.C.M Service Export Base of the Affiliated T.C.M Hospital of Southwest Medical University, Luzhou, 646000, China
- Institute of Integrated Chinese and Western Medicine, Southwest Medical University, Luzhou, 646000, China
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17
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Huang H, Huang GN, Payumo AY. Two decades of heart regeneration research: Cardiomyocyte proliferation and beyond. WIREs Mech Dis 2024; 16:e1629. [PMID: 37700522 PMCID: PMC10840678 DOI: 10.1002/wsbm.1629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 08/03/2023] [Accepted: 08/09/2023] [Indexed: 09/14/2023]
Abstract
Interest in vertebrate cardiac regeneration has exploded over the past two decades since the discovery that adult zebrafish are capable of complete heart regeneration, contrasting the limited regenerative potential typically observed in adult mammalian hearts. Undercovering the mechanisms that both support and limit cardiac regeneration across the animal kingdom may provide unique insights in how we may unlock this capacity in adult humans. In this review, we discuss key discoveries in the heart regeneration field over the last 20 years. Initially, seminal findings revealed that pre-existing cardiomyocytes are the major source of regenerated cardiac muscle, drawing interest into the intrinsic mechanisms regulating cardiomyocyte proliferation. Moreover, recent studies have identified the importance of intercellular interactions and physiological adaptations, which highlight the vast complexity of the cardiac regenerative process. Finally, we compare strategies that have been tested to increase the regenerative capacity of the adult mammalian heart. This article is categorized under: Cardiovascular Diseases > Stem Cells and Development.
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Affiliation(s)
- Herman Huang
- 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
| | - Alexander Y. Payumo
- Department of Biological Sciences, San Jose State University, San Jose, CA 95192, USA
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18
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Whitehead AJ, Atcha H, Hocker JD, Ren B, Engler AJ. AP-1 signaling modulates cardiac fibroblast stress responses. J Cell Sci 2023; 136:jcs261152. [PMID: 37994565 PMCID: PMC10753496 DOI: 10.1242/jcs.261152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 11/15/2023] [Indexed: 11/24/2023] Open
Abstract
Matrix remodeling outcomes largely dictate patient survival post myocardial infarction. Moreover, human-restricted noncoding regulatory elements have been shown to worsen fibrosis, but their mechanism of action remains elusive. Here, we demonstrate, using induced pluripotent stem cell-derived cardiac fibroblasts (iCFs), that inflammatory ligands abundant in the remodeling heart after infarction activate AP-1 transcription factor signaling pathways resulting in fibrotic responses. This observed signaling induces deposition of fibronectin matrix and is further capable of supporting immune cell adhesion; pathway inhibition blocks iCF matrix production and cell adhesion. Polymorphisms in the noncoding regulatory elements within the 9p21 locus (also referred to as ANRIL) redirect stress programs, and in iCFs, they transcriptionally silence the AP-1 inducible transcription factor GATA5. The presence of these polymorphisms modulate iCF matrix production and assembly and reduce cell-cell signaling. These data suggest that this signaling axis is a critical modulator of cardiac disease models and might be influenced by noncoding regulatory elements.
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Affiliation(s)
- Alexander J. Whitehead
- Department of Bioengineering, University of California, San Diego, La Jolla, CA 92093, USA
- Sanford Consortium for Regenerative Medicine, La Jolla, CA 92037, USA
| | - Hamza Atcha
- Department of Bioengineering, University of California, San Diego, La Jolla, CA 92093, USA
- Sanford Consortium for Regenerative Medicine, La Jolla, CA 92037, USA
| | - James D. Hocker
- Biomedical Sciences Program, University of California, San Diego, La Jolla, CA 92093, USA
- Laboratory of Gene Regulation, Ludwig Institute for Cancer Research, La Jolla, CA 92037, USA
| | - Bing Ren
- Biomedical Sciences Program, University of California, San Diego, La Jolla, CA 92093, USA
- Laboratory of Gene Regulation, Ludwig Institute for Cancer Research, La Jolla, CA 92037, USA
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Adam J. Engler
- Department of Bioengineering, University of California, San Diego, La Jolla, CA 92093, USA
- Sanford Consortium for Regenerative Medicine, La Jolla, CA 92037, USA
- Biomedical Sciences Program, University of California, San Diego, La Jolla, CA 92093, USA
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19
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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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20
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Li Z, Zhang S, Mao G, Xu Y, Kang Y, Zheng L, Long D, Chen W, Gu M, Zhang Z, Kang Y, Sheng P, Zhang Z. Identification of anterior cruciate ligament fibroblasts and their contribution to knee osteoarthritis progression using single-cell analyses. Int Immunopharmacol 2023; 125:111109. [PMID: 37883816 DOI: 10.1016/j.intimp.2023.111109] [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: 08/06/2023] [Revised: 10/12/2023] [Accepted: 10/19/2023] [Indexed: 10/28/2023]
Abstract
The mechanical properties of the anterior cruciate ligament (ACL) in the knee have been highlighted, but its role in the regulation of the joint microenvironment remains unclear, especially in the progression of Knee Osteoarthritis (KOA). Here, single-cell RNA sequencing (scRNA-seq) and single-cell assay for transposase-accessible chromatin sequencing (scATAC-seq) data were integrated to reveal the transcriptional and epigenomic landscape of ACL in normal and OA states. We identified a novel subpopulation of fibroblasts in ACL, which provides new insights into the role of the ACL in knee homeostasis and disease. Degeneration of the ACL during OA mechanically alters the knee joint homeostasis and influences the microenvironment by regulating inflammatory- and osteogenic-related factors, thereby contributing to the progression of KOA. Additionally, the specific mechanism by which these Inflammation-associated Fibroblasts (IAFs) regulate KOA progression was uncovered, providing new foundation for the development of targeted treatments for KOA.
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Affiliation(s)
- Zhiwen Li
- Department of Joint Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Shiyong Zhang
- Department of Joint Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Guping Mao
- Department of Joint Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Yiyang Xu
- Department of Orthopaedics, Fujian Provincial Hospital, Shengli Clinical Medical College, Fujian Medical University, China
| | - Yunze Kang
- Department of Joint Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Linli Zheng
- Department of Joint Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Dianbo Long
- Department of Joint Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Weishen Chen
- Department of Joint Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Minghui Gu
- Department of Joint Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Zhiqi Zhang
- Department of Joint Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, China.
| | - Yan Kang
- Department of Joint Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, China.
| | - Puyi Sheng
- Department of Joint Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, China.
| | - Ziji Zhang
- Department of Joint Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, China.
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21
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Lei PJ, Ruscic KJ, Roh K, Rajotte JJ, O'Melia MJ, Bouta EM, Marquez M, Pereira ER, Kumar AS, Arroyo-Ataz G, Razavi MS, Zhou H, Menzel L, Kumra H, Duquette M, Huang P, Baish JW, Munn LL, Ubellacker JM, Jones D, Padera TP. Lymphatic muscle cells are unique cells that undergo aging induced changes. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.18.567621. [PMID: 38014141 PMCID: PMC10680808 DOI: 10.1101/2023.11.18.567621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Lymphatic muscle cells (LMCs) within the wall of collecting lymphatic vessels exhibit tonic and autonomous phasic contractions, which drive active lymph transport to maintain tissue-fluid homeostasis and support immune surveillance. Damage to LMCs disrupts lymphatic function and is related to various diseases. Despite their importance, knowledge of the transcriptional signatures in LMCs and how they relate to lymphatic function in normal and disease contexts is largely missing. We have generated a comprehensive transcriptional single-cell atlas-including LMCs-of collecting lymphatic vessels in mouse dermis at various ages. We identified genes that distinguish LMCs from other types of muscle cells, characterized the phenotypical and transcriptomic changes in LMCs in aged vessels, and uncovered a pro-inflammatory microenvironment that suppresses the contractile apparatus in advanced-aged LMCs. Our findings provide a valuable resource to accelerate future research for the identification of potential drug targets on LMCs to preserve lymphatic vessel function as well as supporting studies to identify genetic causes of primary lymphedema currently with unknown molecular explanation.
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22
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Han X, Wang B, Situ C, Qi Y, Zhu H, Li Y, Guo X. scapGNN: A graph neural network-based framework for active pathway and gene module inference from single-cell multi-omics data. PLoS Biol 2023; 21:e3002369. [PMID: 37956172 PMCID: PMC10681325 DOI: 10.1371/journal.pbio.3002369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 11/27/2023] [Accepted: 10/07/2023] [Indexed: 11/15/2023] Open
Abstract
Although advances in single-cell technologies have enabled the characterization of multiple omics profiles in individual cells, extracting functional and mechanistic insights from such information remains a major challenge. Here, we present scapGNN, a graph neural network (GNN)-based framework that creatively transforms sparse single-cell profile data into the stable gene-cell association network for inferring single-cell pathway activity scores and identifying cell phenotype-associated gene modules from single-cell multi-omics data. Systematic benchmarking demonstrated that scapGNN was more accurate, robust, and scalable than state-of-the-art methods in various downstream single-cell analyses such as cell denoising, batch effect removal, cell clustering, cell trajectory inference, and pathway or gene module identification. scapGNN was developed as a systematic R package that can be flexibly extended and enhanced for existing analysis processes. It provides a new analytical platform for studying single cells at the pathway and network levels.
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Affiliation(s)
- Xudong Han
- State Key Laboratory of Reproductive Medicine and Offspring Health, School of Medicine, Southeast University, Nanjing, China
- Department of Histology and Embryology, State Key Laboratory of Reproductive Medicine and Offspring Health, Nanjing Medical University, Nanjing, China
| | - Bing Wang
- State Key Laboratory of Reproductive Medicine and Offspring Health, School of Medicine, Southeast University, Nanjing, China
- Department of Histology and Embryology, State Key Laboratory of Reproductive Medicine and Offspring Health, Nanjing Medical University, Nanjing, China
| | - Chenghao Situ
- Department of Histology and Embryology, State Key Laboratory of Reproductive Medicine and Offspring Health, Nanjing Medical University, Nanjing, China
| | - Yaling Qi
- Department of Histology and Embryology, State Key Laboratory of Reproductive Medicine and Offspring Health, Nanjing Medical University, Nanjing, China
| | - Hui Zhu
- Department of Histology and Embryology, State Key Laboratory of Reproductive Medicine and Offspring Health, Nanjing Medical University, Nanjing, China
| | - Yan Li
- Department of Clinical Laboratory, Sir Run Run Hospital, Nanjing Medical University, Nanjing, China
| | - Xuejiang Guo
- State Key Laboratory of Reproductive Medicine and Offspring Health, School of Medicine, Southeast University, Nanjing, China
- Department of Histology and Embryology, State Key Laboratory of Reproductive Medicine and Offspring Health, Nanjing Medical University, Nanjing, China
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23
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Dautle M, Zhang S, Chen Y. scTIGER: A Deep-Learning Method for Inferring Gene Regulatory Networks from Case versus Control scRNA-seq Datasets. Int J Mol Sci 2023; 24:13339. [PMID: 37686146 PMCID: PMC10488287 DOI: 10.3390/ijms241713339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 08/06/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023] Open
Abstract
Inferring gene regulatory networks (GRNs) from single-cell RNA-seq (scRNA-seq) data is an important computational question to find regulatory mechanisms involved in fundamental cellular processes. Although many computational methods have been designed to predict GRNs from scRNA-seq data, they usually have high false positive rates and none infer GRNs by directly using the paired datasets of case-versus-control experiments. Here we present a novel deep-learning-based method, named scTIGER, for GRN detection by using the co-differential relationships of gene expression profiles in paired scRNA-seq datasets. scTIGER employs cell-type-based pseudotiming, an attention-based convolutional neural network method and permutation-based significance testing for inferring GRNs among gene modules. As state-of-the-art applications, we first applied scTIGER to scRNA-seq datasets of prostate cancer cells, and successfully identified the dynamic regulatory networks of AR, ERG, PTEN and ATF3 for same-cell type between prostatic cancerous and normal conditions, and two-cell types within the prostatic cancerous environment. We then applied scTIGER to scRNA-seq data from neurons with and without fear memory and detected specific regulatory networks for BDNF, CREB1 and MAPK4. Additionally, scTIGER demonstrates robustness against high levels of dropout noise in scRNA-seq data.
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Affiliation(s)
- Madison Dautle
- Department of Biological and Biomedical Sciences, Rowan University, Glassboro, NJ 08028, USA;
| | - Shaoqiang Zhang
- College of Computer and Information Engineering, Tianjin Normal University, Tianjin 300387, China
| | - Yong Chen
- Department of Biological and Biomedical Sciences, Rowan University, Glassboro, NJ 08028, USA;
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24
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Yuan Q, Duren Z. Continuous lifelong learning for modeling of gene regulation from single cell multiome data by leveraging atlas-scale external data. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.01.551575. [PMID: 37577525 PMCID: PMC10418251 DOI: 10.1101/2023.08.01.551575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Accurate context-specific Gene Regulatory Networks (GRNs) inference from genomics data is a crucial task in computational biology. However, existing methods face limitations, such as reliance on gene expression data alone, lower resolution from bulk data, and data scarcity for specific cellular systems. Despite recent technological advancements, including single-cell sequencing and the integration of ATAC-seq and RNA-seq data, learning such complex mechanisms from limited independent data points still presents a daunting challenge, impeding GRN inference accuracy. To overcome this challenge, we present LINGER (LIfelong neural Network for GEne Regulation), a novel deep learning-based method to infer GRNs from single-cell multiome data with paired gene expression and chromatin accessibility data from the same cell. LINGER incorporates both 1) atlas-scale external bulk data across diverse cellular contexts and 2) the knowledge of transcription factor (TF) motif matching to cis-regulatory elements as a manifold regularization to address the challenge of limited data and extensive parameter space in GRN inference. Our results demonstrate that LINGER achieves 2-3 fold higher accuracy over existing methods. LINGER reveals a complex regulatory landscape of genome-wide association studies, enabling enhanced interpretation of disease-associated variants and genes. Additionally, following the GRN inference from a reference sc-multiome data, LINGER allows for the estimation of TF activity solely from bulk or single-cell gene expression data, leveraging the abundance of available gene expression data to identify driver regulators from case-control studies. Overall, LINGER provides a comprehensive tool for robust gene regulation inference from genomics data, empowering deeper insights into cellular mechanisms.
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Affiliation(s)
- Qiuyue Yuan
- Center for Human Genetics, Department of Genetics and Biochemistry, Clemson University, Greenwood, SC 29646, USA
| | - Zhana Duren
- Center for Human Genetics, Department of Genetics and Biochemistry, Clemson University, Greenwood, SC 29646, USA
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25
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Arolkar G, Kumar SK, Wang H, Gonzalez KM, Kumar S, Bishnoi B, Rios Coronado PE, Woo YJ, Red-Horse K, Das S. Dedifferentiation and Proliferation of Artery Endothelial Cells Drive Coronary Collateral Development in Mice. Arterioscler Thromb Vasc Biol 2023; 43:1455-1477. [PMID: 37345524 PMCID: PMC10364966 DOI: 10.1161/atvbaha.123.319319] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 06/08/2023] [Indexed: 06/23/2023]
Abstract
BACKGROUND Collateral arteries act as natural bypasses which reroute blood flow to ischemic regions and facilitate tissue regeneration. In an injured heart, neonatal artery endothelial cells orchestrate a systematic series of cellular events, which includes their outward migration, proliferation, and coalescence into fully functional collateral arteries. This process, called artery reassembly, aids complete cardiac regeneration in neonatal hearts but is absent in adults. The reason for this age-dependent disparity in artery cell response is completely unknown. In this study, we investigated if regenerative potential of coronary arteries is dictated by their ability to dedifferentiate. METHODS Single-cell RNA sequencing of coronary endothelial cells was performed to identify differences in molecular profiles of neonatal and adult endothelial cells in mice. Findings from this in silico analyses were confirmed with in vivo experiments using genetic lineage tracing, whole organ immunostaining, confocal imaging, and cardiac functional assays in mice. RESULTS Upon coronary occlusion, neonates showed a significant increase in actively cycling artery cells and expressed prominent dedifferentiation markers. Data from in silico pathway analyses and in vivo experiments suggested that upon myocardial infarction, cell cycle reentry of preexisting neonatal artery cells, the subsequent collateral artery formation, and recovery of cardiac function are dependent on arterial VegfR2 (vascular endothelial growth factor receptor-2). This subpopulation of dedifferentiated and proliferating artery cells was absent in nonregenerative postnatal day 7 or adult hearts. CONCLUSIONS These data indicate that adult artery endothelial cells fail to drive collateral artery development due to their limited ability to dedifferentiate and proliferate.
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Affiliation(s)
- Gauri Arolkar
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bengaluru, India (G.A., S.K.K., S.K., B.B., S.D.)
| | - Sneha K. Kumar
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bengaluru, India (G.A., S.K.K., S.K., B.B., S.D.)
| | - Hanjay Wang
- Department of Cardiothoracic Surgery (H.W., Y.J.W.), Stanford University School of Medicine, CA
| | - Karen M. Gonzalez
- Institute for Stem Cell Biology and Regenerative Medicine (K.M.G., K.R.-H.), Stanford University School of Medicine, CA
- Department of Biology (K.M.G., K.R.-H.), Stanford University, CA
| | - Suraj Kumar
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bengaluru, India (G.A., S.K.K., S.K., B.B., S.D.)
| | - Bhavnesh Bishnoi
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bengaluru, India (G.A., S.K.K., S.K., B.B., S.D.)
| | | | - Y. Joseph Woo
- Department of Cardiothoracic Surgery (H.W., Y.J.W.), Stanford University School of Medicine, CA
| | - Kristy Red-Horse
- Institute for Stem Cell Biology and Regenerative Medicine (K.M.G., K.R.-H.), Stanford University School of Medicine, CA
- Department of Biology (K.M.G., K.R.-H.), Stanford University, CA
- Howard Hughes Medical Institute, Chevy Chase, MD (K.R.-H.)
| | - Soumyashree Das
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bengaluru, India (G.A., S.K.K., S.K., B.B., S.D.)
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26
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Jia X, Lin W, Wang W. Regulation of chromatin organization during animal regeneration. CELL REGENERATION (LONDON, ENGLAND) 2023; 12:19. [PMID: 37259007 DOI: 10.1186/s13619-023-00162-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 03/21/2023] [Indexed: 06/02/2023]
Abstract
Activation of regeneration upon tissue damages requires the activation of many developmental genes responsible for cell proliferation, migration, differentiation, and tissue patterning. Ample evidence revealed that the regulation of chromatin organization functions as a crucial mechanism for establishing and maintaining cellular identity through precise control of gene transcription. The alteration of chromatin organization can lead to changes in chromatin accessibility and/or enhancer-promoter interactions. Like embryogenesis, each stage of tissue regeneration is accompanied by dynamic changes of chromatin organization in regeneration-responsive cells. In the past decade, many studies have been conducted to investigate the contribution of chromatin organization during regeneration in various tissues, organs, and organisms. A collection of chromatin regulators were demonstrated to play critical roles in regeneration. In this review, we will summarize the progress in the understanding of chromatin organization during regeneration in different research organisms and discuss potential common mechanisms responsible for the activation of regeneration response program.
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Affiliation(s)
- Xiaohui Jia
- National Institute of Biological Sciences, Beijing, 102206, China
- China Agricultural University, Beijing, 100083, China
| | - Weifeng Lin
- National Institute of Biological Sciences, Beijing, 102206, China
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, 100084, China
| | - Wei Wang
- National Institute of Biological Sciences, Beijing, 102206, China.
- Tsinghua Institute of Multidisciplinary Biomedical Research, Tsinghua University, Beijing, 100084, China.
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27
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Sodimu O, Almasian M, Gan P, Hassan S, Zhang X, Liu N, Ding Y. Light sheet imaging and interactive analysis of the cardiac structure in neonatal mice. JOURNAL OF BIOPHOTONICS 2023; 16:e202200278. [PMID: 36624523 PMCID: PMC10192002 DOI: 10.1002/jbio.202200278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 11/25/2022] [Accepted: 12/24/2022] [Indexed: 05/17/2023]
Abstract
Light-sheet microscopy (LSM) enables us to strengthen the understanding of cardiac development, injury, and regeneration in mammalian models. This emerging technique decouples laser illumination and fluorescence detection to investigate cardiac micro-structure and function with a high spatial resolution while minimizing photodamage and maximizing penetration depth. To unravel the potential of volumetric imaging in cardiac development and repair, we sought to integrate our in-house LSM, Adipo-Clear, and virtual reality (VR) with neonatal mouse hearts. We demonstrate the use of Adipo-Clear to render mouse hearts transparent, the development of our in-house LSM to capture the myocardial architecture within the intact heart, and the integration of VR to explore, measure, and assess regions of interests in an interactive manner. Collectively, we have established an innovative and holistic strategy for image acquisition and interpretation, providing an entry point to assess myocardial micro-architecture throughout the entire mammalian heart for the understanding of cardiac morphogenesis.
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Affiliation(s)
- Oluwatofunmi Sodimu
- Department of Bioengineering, Erik Jonsson School of Engineering and Computer Science, The University of Texas at Dallas, Richardson, TX 75080, USA
| | - Milad Almasian
- Department of Bioengineering, Erik Jonsson School of Engineering and Computer Science, The University of Texas at Dallas, Richardson, TX 75080, USA
| | - Peiheng Gan
- Hamon Center for Regenerative Science and Medicine, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Sohail Hassan
- Department of Bioengineering, Erik Jonsson School of Engineering and Computer Science, The University of Texas at Dallas, Richardson, TX 75080, USA
| | - Xinyuan Zhang
- Department of Bioengineering, Erik Jonsson School of Engineering and Computer Science, The University of Texas at Dallas, Richardson, TX 75080, USA
| | - Ning Liu
- Hamon Center for Regenerative Science and Medicine, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Yichen Ding
- Department of Bioengineering, Erik Jonsson School of Engineering and Computer Science, The University of Texas at Dallas, Richardson, TX 75080, USA
- Hamon Center for Regenerative Science and Medicine, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
- Center for Imaging and Surgical Innovation, The University of Texas at Dallas, Richardson, TX, 75080, USA
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28
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Ji L, Shi Y, Bian Q. Comparative genomics analyses reveal sequence determinants underlying interspecies variations in injury-responsive enhancers. BMC Genomics 2023; 24:177. [PMID: 37020217 PMCID: PMC10077677 DOI: 10.1186/s12864-023-09283-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 03/29/2023] [Indexed: 04/07/2023] Open
Abstract
BACKGROUND Injury induces profound transcriptional remodeling events, which could lead to only wound healing, partial tissue repair, or perfect regeneration in different species. Injury-responsive enhancers (IREs) are cis-regulatory elements activated in response to injury signals, and have been demonstrated to promote tissue regeneration in some organisms such as zebrafish and flies. However, the functional significances of IREs in mammals remain elusive. Moreover, whether the transcriptional responses elicited by IREs upon injury are conserved or specialized in different species, and what sequence features may underlie the functional variations of IREs have not been elucidated. RESULTS We identified a set of IREs that are activated in both regenerative and non-regenerative neonatal mouse hearts upon myocardial ischemia-induced damage by integrative epigenomic and transcriptomic analyses. Motif enrichment analysis showed that AP-1 and ETS transcription factor binding motifs are significantly enriched in both zebrafish and mouse IREs. However, the IRE-associated genes vary considerably between the two species. We further found that the IRE-related sequences in zebrafish and mice diverge greatly, with the loss of IRE inducibility accompanied by a reduction in AP-1 and ETS motif frequencies. The functional turnover of IREs between zebrafish and mice is correlated with changes in transcriptional responses of the IRE-associated genes upon injury. Using mouse cardiomyocytes as a model, we demonstrated that the reduction in AP-1 or ETS motif frequency attenuates the activation of IREs in response to hypoxia-induced damage. CONCLUSIONS By performing comparative genomics analyses on IREs, we demonstrated that inter-species variations in AP-1 and ETS motifs may play an important role in defining the functions of enhancers during injury response. Our findings provide important insights for understanding the molecular mechanisms of transcriptional remodeling in response to injury across species.
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Affiliation(s)
- Luzhang Ji
- Shanghai Institute of Precision Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China
| | - Yuanyuan Shi
- Shanghai Institute of Precision Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China
| | - Qian Bian
- Shanghai Institute of Precision Medicine, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200125, China.
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29
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Uscategui Calderon M, Gonzalez BA, Yutzey KE. Cardiomyocyte-fibroblast crosstalk in the postnatal heart. Front Cell Dev Biol 2023; 11:1163331. [PMID: 37077417 PMCID: PMC10106698 DOI: 10.3389/fcell.2023.1163331] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 03/22/2023] [Indexed: 04/05/2023] Open
Abstract
During the postnatal period in mammals, the heart undergoes significant remodeling in response to increased circulatory demands. In the days after birth, cardiac cells, including cardiomyocytes and fibroblasts, progressively lose embryonic characteristics concomitant with the loss of the heart’s ability to regenerate. Moreover, postnatal cardiomyocytes undergo binucleation and cell cycle arrest with induction of hypertrophic growth, while cardiac fibroblasts proliferate and produce extracellular matrix (ECM) that transitions from components that support cellular maturation to production of the mature fibrous skeleton of the heart. Recent studies have implicated interactions of cardiac fibroblasts and cardiomyocytes within the maturing ECM environment to promote heart maturation in the postnatal period. Here, we review the relationships of different cardiac cell types and the ECM as the heart undergoes both structural and functional changes during development. Recent advances in the field, particularly in several recently published transcriptomic datasets, have highlighted specific signaling mechanisms that underlie cellular maturation and demonstrated the biomechanical interdependence of cardiac fibroblast and cardiomyocyte maturation. There is increasing evidence that postnatal heart development in mammals is dependent on particular ECM components and that resulting changes in biomechanics influence cell maturation. These advances, in definition of cardiac fibroblast heterogeneity and function in relation to cardiomyocyte maturation and the extracellular environment provide, support for complex cell crosstalk in the postnatal heart with implications for heart regeneration and disease mechanisms.
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Affiliation(s)
- Maria Uscategui Calderon
- Division of Molecular Cardiovascular Biology, The Heart Institute, Cincinnati Children’s Medical Center, Cincinnati, OH, United States
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Brittany A. Gonzalez
- Division of Molecular Cardiovascular Biology, The Heart Institute, Cincinnati Children’s Medical Center, Cincinnati, OH, United States
| | - Katherine E. Yutzey
- Division of Molecular Cardiovascular Biology, The Heart Institute, Cincinnati Children’s Medical Center, Cincinnati, OH, United States
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States
- *Correspondence: Katherine E. Yutzey,
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30
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Ischemia challenged epicardial adipose tissue stem cells-derived extracellular vesicles alter the gene expression of cardiac fibroblasts to cardiomyocyte like phenotype. Transl Res 2023; 254:54-67. [PMID: 36273744 DOI: 10.1016/j.trsl.2022.10.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 10/05/2022] [Accepted: 10/14/2022] [Indexed: 11/06/2022]
Abstract
The present study hypothesizes that the ischemic insults activate epicardial adipose tissue-derived stem cells (EATDS) to secrete extracellular vesicles (EVs) packed with regenerative mediators to alter the gene expression in cardiac fibroblasts (CF). EATDS and CF were isolated from hyperlipidemic microswine and EVs were harvested from control, simulated ischemia (ISC) and ischemia-reperfusion (ISC/R) groups. The in vitro interaction between ISC-EVs and CF resulted in the upregulation of cardiomyocyte-specific transcription factors including GATA4, Nkx2.5, IRX4, and TBX5 in CF and the healing marker αSMA and the downregulation of fibroblast biomarkers such as vimentin, FSP1, and podoplanin and the cardiac biomarkers such as troponin-I and connexin-43. These results suggest a cardiomyocyte-like phenotype as confirmed by immunostaining and Western blot. The LC-MS/MS analysis of ISC-EVs LGALS1, PRDX2, and CCL2 to be the potent protein mediators which are intimately involved in versatile regenerative processes and connected with a diverse array of regenerative genes. Moreover, the LGALS1+, PRDX2+, and CCL2+ EATDS phenotypes were deciphered at single cell resolution revealing corresponding sub-populations with superior healing potential. Overall, the findings unveiled the healing potential of EATDS-derived EVs and sub-populations of regenerative EATDS promising novel translational opportunities in improved cardiac healing following ischemic injury.
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31
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Li R, Li D, Nie Y. IL-6/gp130 signaling: a key unlocking regeneration. CELL REGENERATION (LONDON, ENGLAND) 2023; 12:16. [PMID: 36952066 PMCID: PMC10036683 DOI: 10.1186/s13619-023-00160-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 03/24/2023]
Abstract
Liver is an organ with notable capacity of regeneration. Reprogramming of hepatocytes towards an immature state is one of the important mechanisms for hepatocyte replenishment. Inflammatory response mediated by IL-6 and its family cytokines has been widely reported closely related with tissue regeneration in myriads of organs. Recently Hui and colleagues reported that the dedifferentiation of hepatocytes depends upon IL-6 signaling from Kupffer cells and the reprogramming of gene expression under the inflammatory condition is different from the regulation of gene expression during embryo hepatocyte specification, highlighting a tight linkage between extracellular microenvironment and parenchymal cell plasticity during tissue regenerative repair.
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Affiliation(s)
- Ruopu Li
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital & Cardiovascular Institute, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Street, Beilishi Road, Xicheng District, 100037, Beijing, People's Republic of China
| | - Deqiang Li
- The Center for Cardiovascular Research, the Research Institute at Nationwide Children's Hospital, 575 Children's Drive, Columbus, OH, 43215, USA
- The Department of Pediatrics, College of Medicine, Ohio State University, Columbus, OH, 43215, USA
| | - Yu Nie
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital & Cardiovascular Institute, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Street, Beilishi Road, Xicheng District, 100037, Beijing, People's Republic of China.
- National Health Commission Key Laboratory of Cardiovascular Regenerative Medicine, Fuwai Central-China Hospital, Central China Branch of National Center for Cardiovascular Diseases, 450046, Zhengzhou, China.
- Shenzhen Key Laboratory of Cardiovascular Disease, Fuwai Hospital Chinese Academy of Medical Sciences, 518057, Shenzhen, China.
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32
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Becker LM, Chen SH, Rodor J, de Rooij LPMH, Baker AH, Carmeliet P. Deciphering endothelial heterogeneity in health and disease at single-cell resolution: progress and perspectives. Cardiovasc Res 2023; 119:6-27. [PMID: 35179567 PMCID: PMC10022871 DOI: 10.1093/cvr/cvac018] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/16/2021] [Accepted: 02/16/2022] [Indexed: 11/14/2022] Open
Abstract
Endothelial cells (ECs) constitute the inner lining of vascular beds in mammals and are crucial for homeostatic regulation of blood vessel physiology, but also play a key role in pathogenesis of many diseases, thereby representing realistic therapeutic targets. However, it has become evident that ECs are heterogeneous, encompassing several subtypes with distinct functions, which makes EC targeting and modulation in diseases challenging. The rise of the new single-cell era has led to an emergence of studies aimed at interrogating transcriptome diversity along the vascular tree, and has revolutionized our understanding of EC heterogeneity from both a physiological and pathophysiological context. Here, we discuss recent landmark studies aimed at teasing apart the heterogeneous nature of ECs. We cover driving (epi)genetic, transcriptomic, and metabolic forces underlying EC heterogeneity in health and disease, as well as current strategies used to combat disease-enriched EC phenotypes, and propose strategies to transcend largely descriptive heterogeneity towards prioritization and functional validation of therapeutically targetable drivers of EC diversity. Lastly, we provide an overview of the most recent advances and hurdles in single EC OMICs.
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Affiliation(s)
| | | | | | | | - Andrew H Baker
- Corresponding authors. Tel: +32 16 32 62 47, E-mail: (P.C.); Tel: +44 (0)131 242 6774, E-mail: (A.H.B.)
| | - Peter Carmeliet
- Corresponding authors. Tel: +32 16 32 62 47, E-mail: (P.C.); Tel: +44 (0)131 242 6774, E-mail: (A.H.B.)
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33
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Gromova T, Gehred ND, Vondriska TM. Single-cell transcriptomes in the heart: when every epigenome counts. Cardiovasc Res 2023; 119:64-78. [PMID: 35325060 DOI: 10.1093/cvr/cvac040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 02/03/2022] [Accepted: 02/14/2022] [Indexed: 11/13/2022] Open
Abstract
The response of an organ to stimuli emerges from the actions of individual cells. Recent cardiac single-cell RNA-sequencing studies of development, injury, and reprogramming have uncovered heterogeneous populations even among previously well-defined cell types, raising questions about what level of experimental resolution corresponds to disease-relevant, tissue-level phenotypes. In this review, we explore the biological meaning behind this cellular heterogeneity by undertaking an exhaustive analysis of single-cell transcriptomics in the heart (including a comprehensive, annotated compendium of studies published to date) and evaluating new models for the cardiac function that have emerged from these studies (including discussion and schematics that depict new hypotheses in the field). We evaluate the evidence to support the biological actions of newly identified cell populations and debate questions related to the role of cell-to-cell variability in development and disease. Finally, we present emerging epigenomic approaches that, when combined with single-cell RNA-sequencing, can resolve basic mechanisms of gene regulation and variability in cell phenotype.
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Affiliation(s)
- Tatiana Gromova
- Department of Anesthesiology & Perioperative Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
- Department of Medicine/Cardiology, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
- Department of Physiology, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Natalie D Gehred
- Department of Anesthesiology & Perioperative Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
- Department of Medicine/Cardiology, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
- Department of Physiology, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Thomas M Vondriska
- Department of Anesthesiology & Perioperative Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
- Department of Medicine/Cardiology, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
- Department of Physiology, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
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Li R, Xiang C, Li Y, Nie Y. Targeting immunoregulation for cardiac regeneration. J Mol Cell Cardiol 2023; 177:1-8. [PMID: 36801268 DOI: 10.1016/j.yjmcc.2023.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 02/06/2023] [Accepted: 02/14/2023] [Indexed: 02/18/2023]
Abstract
Inducing endogenous cardiomyocyte proliferation and heart regeneration is a promising strategy to treat ischemic heart failure. The immune response has recently been considered critical in cardiac regeneration. Thus, targeting the immune response is a potent strategy to improve cardiac regeneration and repair after myocardial infarction. Here we reviewed the characteristics of the relationship between the postinjury immune response and heart regenerative capacity and summarized the latest studies focusing on inflammation and heart regeneration to identify potent targets of the immune response and strategies in the immune response to promote cardiac regeneration.
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Affiliation(s)
- Ruopu Li
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Chenying Xiang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Yixun Li
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Yu Nie
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China; National Health Commission Key Laboratory of Cardiovascular Regenerative Medicine, Fuwai Central-China Hospital, Central China Branch of National Center for Cardiovascular Diseases, Zhengzhou 450046, China.
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35
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Neonatal Plasma Exosomes Contribute to Endothelial Cell-Mediated Angiogenesis and Cardiac Repair after Acute Myocardial Infarction. Int J Mol Sci 2023; 24:ijms24043196. [PMID: 36834610 PMCID: PMC9959818 DOI: 10.3390/ijms24043196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 01/30/2023] [Accepted: 02/01/2023] [Indexed: 02/09/2023] Open
Abstract
Acute myocardial infarction (AMI) accompanied by cardiac remodeling still lacks effective treatment to date. Accumulated evidences suggest that exosomes from various sources play a cardioprotective and regenerative role in heart repair, but their effects and mechanisms remain intricate. Here, we found that intramyocardial delivery of plasma exosomes from neonatal mice (npEXO) could help to repair the adult heart in structure and function after AMI. In-depth proteome and single-cell transcriptome analyses suggested that npEXO ligands were majorly received by cardiac endothelial cells (ECs), and npEXO-mediated angiogenesis might serve as a pivotal reason to ameliorate the infarcted adult heart. We then innovatively constructed systematical communication networks among exosomal ligands and cardiac ECs and the final 48 ligand-receptor pairs contained 28 npEXO ligands (including the angiogenic factors, Clu and Hspg2), which mainly mediated the pro-angiogenic effect of npEXO by recognizing five cardiac EC receptors (Kdr, Scarb1, Cd36, etc.). Together, the proposed ligand-receptor network in our study might provide inspiration for rebuilding the vascular network and cardiac regeneration post-MI.
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36
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Kong D, Huang S, Miao X, Li J, Wu Z, Shi Y, Liu H, Jiang Y, Yu X, Xie M, Shen Z, Cai J, Xi R, Gong W. The dynamic cellular landscape of grafts with acute rejection after heart transplantation. J Heart Lung Transplant 2023; 42:160-172. [PMID: 36411190 DOI: 10.1016/j.healun.2022.10.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 10/17/2022] [Accepted: 10/25/2022] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Acute cellular rejection (ACR) is a major barrier to the long-term survival of cardiac allografts. Although immune cells are well known to play critical roles in ACR, the dynamic cellular landscape of allografts with ACR remains obscure. METHODS Single-cell RNA sequencing (scRNA-seq) was carried out for mouse cardiac allografts with ACR. Bioinformatic analysis was performed, and subsequent transplant experiments were conducted to validate the findings. RESULTS Despite an overall large depletion of cardiac fibroblasts (CFBs), highly expanded cytotoxic T lymphocytes and a CXCL10+Gbp2+ subcluster of CFBs were enriched within grafts at the late stage. CXCL10+Gbp2+ CFBs featured strong interferon responsiveness and high expression of chemokines and major histocompatibility complex molecules, implying their involvement in the recruitment and activation of immune cells. Cell‒cell communication analysis revealed that CXCL9/CXCL10-CXCR3 might contribute to regulating CXCL10+Gbp2+ CFB-induced chemotaxis and immune cell recruitment. In vivo transplant studies revealed the therapeutic potential of CXCR3 antagonism in transplant rejection. CONCLUSIONS The findings of our study unveiled a novel CFB subcluster that might mediate acute cardiac rejection. Targeting CXCR3 could prolong allograft survival.
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Affiliation(s)
- Deqiang Kong
- Department of Surgery, Second Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China; Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, Zhejiang, China
| | - Siyuan Huang
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
| | - Xiaolong Miao
- Department of Surgery, Second Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China; Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, Zhejiang, China
| | - Jiaxin Li
- Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
| | - Zelai Wu
- Department of Surgery, Second Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China; Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, Zhejiang, China
| | - Yang Shi
- School of Mathematical Sciences, Peking University, Beijing, China
| | - Han Liu
- Department of Surgery, Second Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China; Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, Zhejiang, China
| | - Yuancong Jiang
- Department of Surgery, Second Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China; Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, Zhejiang, China
| | - Xing Yu
- Department of Thyroid Surgery, Second Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China
| | - Mengyao Xie
- Department of Otolaryngology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zhonghua Shen
- Department of Cardiovascular Surgery, Second Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China
| | - Jinzhen Cai
- Division of Hepatology, Liver Disease Center, Organ Transplantation Center, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ruibin Xi
- School of Mathematical Sciences and Center for Statistical Science, Peking University, Beijing, China.
| | - Weihua Gong
- Department of Surgery, Second Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China; Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, Zhejiang, China.
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Liu Z, Liu X, Liu L, Wang Y, Zheng J, Li L, Li S, Zhang H, Ni J, Ma C, Gao X, Bian X, Fan G. SUMO1 regulates post-infarct cardiac repair based on cellular heterogeneity. J Pharm Anal 2023; 13:170-186. [PMID: 36908856 PMCID: PMC9999303 DOI: 10.1016/j.jpha.2022.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 11/19/2022] [Accepted: 11/27/2022] [Indexed: 12/11/2022] Open
Abstract
Small ubiquitin-related modifier (SUMOylation) is a dynamic post-translational modification that maintains cardiac function and can protect against a hypertrophic response to cardiac pressure overload. However, the function of SUMOylation after myocardial infarction (MI) and the molecular details of heart cell responses to SUMO1 deficiency have not been determined. In this study, we demonstrated that SUMO1 protein was inconsistently abundant in different cell types and heart regions after MI. However, SUMO1 knockout significantly exacerbated systolic dysfunction and infarct size after myocardial injury. Single-nucleus RNA sequencing revealed the differential role of SUMO1 in regulating heart cells. Among cardiomyocytes, SUMO1 deletion increased the Nppa + Nppb + Ankrd1 + cardiomyocyte subcluster proportion after MI. In addition, the conversion of fibroblasts to myofibroblasts subclusters was inhibited in SUMO1 knockout mice. Importantly, SUMO1 loss promoted proliferation of endothelial cell subsets with the ability to reconstitute neovascularization and expressed angiogenesis-related genes. Computational analysis of ligand/receptor interactions suggested putative pathways that mediate cardiomyocytes to endothelial cell communication in the myocardium. Mice preinjected with cardiomyocyte-specific AAV-SUMO1, but not the endothelial cell-specific form, and exhibited ameliorated cardiac remodeling following MI. Collectively, our results identified the role of SUMO1 in cardiomyocytes, fibroblasts, and endothelial cells after MI. These findings provide new insights into SUMO1 involvement in the pathogenesis of MI and reveal novel therapeutic targets.
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Affiliation(s)
- Zhihao Liu
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300193, China.,State Key Laboratory of Component-Based Chinese Medicine, Tianjin, 301617, China
| | - Xiaozhi Liu
- Tianjin Key Laboratory of Epigenetics for Organ Development in Preterm Infants, The Fifth Central Hospital of Tianjin, Tianjin, 300450, China
| | - Li Liu
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300193, China.,State Key Laboratory of Component-Based Chinese Medicine, Tianjin, 301617, China
| | - Ying Wang
- Tianjin Key Laboratory of Epigenetics for Organ Development in Preterm Infants, The Fifth Central Hospital of Tianjin, Tianjin, 300450, China
| | - Jie Zheng
- Tianjin Key Laboratory of Epigenetics for Organ Development in Preterm Infants, The Fifth Central Hospital of Tianjin, Tianjin, 300450, China
| | - Lan Li
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin, 301617, China.,Haihe Laboratory of Modern Chinese Medicine, Tianjin, 301617, China
| | - Sheng Li
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin, 301617, China
| | - Han Zhang
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin, 301617, China.,Haihe Laboratory of Modern Chinese Medicine, Tianjin, 301617, China
| | - Jingyu Ni
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin, 301617, China.,Haihe Laboratory of Modern Chinese Medicine, Tianjin, 301617, China
| | - Chuanrui Ma
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300193, China
| | - Xiumei Gao
- State Key Laboratory of Component-Based Chinese Medicine, Tianjin, 301617, China.,Haihe Laboratory of Modern Chinese Medicine, Tianjin, 301617, China
| | - Xiyun Bian
- Tianjin Key Laboratory of Epigenetics for Organ Development in Preterm Infants, The Fifth Central Hospital of Tianjin, Tianjin, 300450, China
| | - Guanwei Fan
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300193, China.,State Key Laboratory of Component-Based Chinese Medicine, Tianjin, 301617, China.,Haihe Laboratory of Modern Chinese Medicine, Tianjin, 301617, China
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38
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Wang J, An M, Haubner BJ, Penninger JM. Cardiac regeneration: Options for repairing the injured heart. Front Cardiovasc Med 2023; 9:981982. [PMID: 36712238 PMCID: PMC9877631 DOI: 10.3389/fcvm.2022.981982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 12/29/2022] [Indexed: 01/13/2023] Open
Abstract
Cardiac regeneration is one of the grand challenges in repairing injured human hearts. Numerous studies of signaling pathways and metabolism on cardiac development and disease pave the way for endogenous cardiomyocyte regeneration. New drug delivery approaches, high-throughput screening, as well as novel therapeutic compounds combined with gene editing will facilitate the development of potential cell-free therapeutics. In parallel, progress has been made in the field of cell-based therapies. Transplantation of human pluripotent stem cell (hPSC)-derived cardiomyocytes (hPSC-CMs) can partially rescue the myocardial defects caused by cardiomyocyte loss in large animals. In this review, we summarize current cell-based and cell-free regenerative therapies, discuss the importance of cardiomyocyte maturation in cardiac regenerative medicine, and envision new ways of regeneration for the injured heart.
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Affiliation(s)
- Jun Wang
- Department of Medical Genetics, Life Sciences Institute, The University of British Columbia, Vancouver, BC, Canada
| | - Meilin An
- Department of Medical Genetics, Life Sciences Institute, The University of British Columbia, Vancouver, BC, Canada
| | - Bernhard Johannes Haubner
- Department of Internal Medicine III (Cardiology and Angiology), Innsbruck Medical University, Innsbruck, Austria,Department of Cardiology, University Heart Center, University Hospital Zurich, Zurich, Switzerland
| | - Josef M. Penninger
- Department of Medical Genetics, Life Sciences Institute, The University of British Columbia, Vancouver, BC, Canada,Institute of Molecular Biotechnology of the Austrian Academy of Sciences, VBC – Vienna BioCenter, Vienna, Austria,*Correspondence: Josef M. Penninger,
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Rogalska ME, Vafiadaki E, Erpapazoglou Z, Haghighi K, Green L, Mantzoros CS, Hajjar RJ, Tranter M, Karakikes I, Kranias EG, Stillitano F, Kafasla P, Sanoudou D. Isoform changes of action potential regulators in the ventricles of arrhythmogenic phospholamban-R14del humanized mouse hearts. Metabolism 2023; 138:155344. [PMID: 36375644 DOI: 10.1016/j.metabol.2022.155344] [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: 07/06/2022] [Revised: 10/30/2022] [Accepted: 11/01/2022] [Indexed: 11/13/2022]
Abstract
Arrhythmogenic cardiomyopathy (ACM) is characterized by life-threatening ventricular arrhythmias and sudden cardiac death and affects hundreds of thousands of patients worldwide. The deletion of Arginine 14 (p.R14del) in the phospholamban (PLN) gene has been implicated in the pathogenesis of ACM. PLN is a key regulator of sarcoplasmic reticulum (SR) Ca2+ cycling and cardiac contractility. Despite global gene and protein expression studies, the molecular mechanisms of PLN-R14del ACM pathogenesis remain unclear. Using a humanized PLN-R14del mouse model and human induced pluripotent stem cell derived cardiomyocytes (iPSC-CMs), we investigated the transcriptome-wide mRNA splicing changes associated with the R14del mutation. We identified >200 significant alternative splicing (AS) events and distinct AS profiles were observed in the right (RV) and left (LV) ventricles in PLN-R14del compared to WT mouse hearts. Enrichment analysis of the AS events showed that the most affected biological process was associated with "cardiac cell action potential", specifically in the RV. We found that splicing of 2 key genes, Trpm4 and Camk2d, which encode proteins regulating calcium homeostasis in the heart, were altered in PLN-R14del mouse hearts and human iPSC-CMs. Bioinformatical analysis pointed to the tissue-specific splicing factors Srrm4 and Nova1 as likely upstream regulators of the observed splicing changes in the PLN-R14del cardiomyocytes. Our findings suggest that aberrant splicing may affect Ca2+-homeostasis in the heart, contributing to the increased risk of arrythmogenesis in PLN-R14del ACM.
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Affiliation(s)
- Malgorzata E Rogalska
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona 08003, Spain
| | - Elizabeth Vafiadaki
- Molecular Biology Division, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece
| | - Zoi Erpapazoglou
- Institute for Fundamental Biomedical Research, B.S.R.C. "Alexander Fleming", 16672 Athens, Greece
| | - Kobra Haghighi
- Department of Pharmacology and Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
| | - Lisa Green
- Department of Medicine, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
| | - Christos S Mantzoros
- Division of Endocrinology, Diabetes and Metabolism, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA; Section of Endocrinology, Boston VA Healthcare System, Harvard Medical School, Boston, MA 02215, USA
| | | | - Michael Tranter
- Department of Medicine, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
| | - Ioannis Karakikes
- Department of Cardiothoracic Surgery and Cardiovascular Institute, Stanford University School of Medicine, 240 Pasteur Dr, Stanford, CA 94304, USA
| | - Evangelia G Kranias
- Department of Pharmacology and Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
| | - Francesca Stillitano
- Division Heart and Lung, Department of Cardiology, University Medical Center Utrecht, 3584, CX, Utrecht, the Netherlands
| | - Panagiota Kafasla
- Institute for Fundamental Biomedical Research, B.S.R.C. "Alexander Fleming", 16672 Athens, Greece
| | - Despina Sanoudou
- Molecular Biology Division, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece; Clinical Genomics and Pharmacogenomics Unit, 4(th) Department of Internal Medicine, Attikon Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; Center for New Biotechnologies and Precision Medicine, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece.
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40
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Qu JH, Telljohann R, Byshkov R, Lakatta EG. Characterization of diverse populations of sinoatrial node cells and their proliferation potential at single nucleus resolution. Heliyon 2022; 9:e12708. [PMID: 36632093 PMCID: PMC9826826 DOI: 10.1016/j.heliyon.2022.e12708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 11/10/2022] [Accepted: 12/22/2022] [Indexed: 12/31/2022] Open
Abstract
Background Each heartbeat is initiated in the sinoatrial node (SAN), and although a recent study (GSE130710) using single nucleus RNA-seq had discovered different populations of cell types within SAN tissue, the distinct potential functions of these cell types have not been delineated. Methods To infer some special potential functions of different SAN cell clusters, we applied principal component analysis (PCA), t-distributed stochastic neighbor embedding (t-SNE) and uniform manifold approximation and projection (UMAP) to the GSE130710 dataset to reduce dimensions, followed by Pseudotime trajectory and AUCell analyses, ANOVA and Hurdle statistical models, and Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichments to determine functional potential of cell types. Nuclear EdU immuno-labeling of SAN tissue confirmed cell type proliferation. Findings We identified elements of a coupled clock system known to drive SAN cell pacemaking within the GSE130710 sinus node myocyte cluster, which, surprisingly, manifested signals of suppressed fatty acid and nitrogen metabolism and reduced immune gene expression. Proliferation signaling was enriched in endocardial, epicardial, epithelial cells, and macrophages, in which, fatty acid and nitrogen metabolic signals were also suppressed, but immune signaling was enhanced. EdU labeling was rare in pacemaker cells but was robust in interstitial cells. Interpretation Pacemaker cells that initiate each heartbeat manifest suppressed fatty acid and nitrogen metabolism and limited immune signaling and proliferation potential. In contrast, other populations of SAN cells not directly involved in the initiation of heartbeats, manifest robust proliferation and immune potential, likely to ensure an environment required to sustain healthy SAN tissue pacemaker function.
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41
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Single-cell transcriptomic analysis identifies murine heart molecular features at embryonic and neonatal stages. Nat Commun 2022; 13:7960. [PMID: 36575170 PMCID: PMC9794824 DOI: 10.1038/s41467-022-35691-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 12/19/2022] [Indexed: 12/28/2022] Open
Abstract
Heart development is a continuous process involving significant remodeling during embryogenesis and neonatal stages. To date, several groups have used single-cell sequencing to characterize the heart transcriptomes but failed to capture the progression of heart development at most stages. This has left gaps in understanding the contribution of each cell type across cardiac development. Here, we report the transcriptional profile of the murine heart from early embryogenesis to late neonatal stages. Through further analysis of this dataset, we identify several transcriptional features. We identify gene expression modules enriched at early embryonic and neonatal stages; multiple cell types in the left and right atriums are transcriptionally distinct at neonatal stages; many congenital heart defect-associated genes have cell type-specific expression; stage-unique ligand-receptor interactions are mostly between epicardial cells and other cell types at neonatal stages; and mutants of epicardium-expressed genes Wt1 and Tbx18 have different heart defects. Assessment of this dataset serves as an invaluable source of information for studies of heart development.
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Knight-Schrijver VR, Davaapil H, Bayraktar S, Ross ADB, Kanemaru K, Cranley J, Dabrowska M, Patel M, Polanski K, He X, Vallier L, Teichmann S, Gambardella L, Sinha S. A single-cell comparison of adult and fetal human epicardium defines the age-associated changes in epicardial activity. NATURE CARDIOVASCULAR RESEARCH 2022; 1:1215-1229. [PMID: 36938497 PMCID: PMC7614330 DOI: 10.1038/s44161-022-00183-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 11/03/2022] [Indexed: 12/24/2022]
Abstract
Re-activating quiescent adult epicardium represents a potential therapeutic approach for human cardiac regeneration. However, the exact molecular differences between inactive adult and active fetal epicardium are not known. In this study, we combined fetal and adult human hearts using single-cell and single-nuclei RNA sequencing and compared epicardial cells from both stages. We found that a migratory fibroblast-like epicardial population only in the fetal heart and fetal epicardium expressed angiogenic gene programs, whereas the adult epicardium was solely mesothelial and immune responsive. Furthermore, we predicted that adult hearts may still receive fetal epicardial paracrine communication, including WNT signaling with endocardium, reinforcing the validity of regenerative strategies that administer or reactivate epicardial cells in situ. Finally, we explained graft efficacy of our human embryonic stem-cell-derived epicardium model by noting its similarity to human fetal epicardium. Overall, our study defines epicardial programs of regenerative angiogenesis absent in adult hearts, contextualizes animal studies and defines epicardial states required for effective human heart regeneration.
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Affiliation(s)
- Vincent R. Knight-Schrijver
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge Biomedical Campus, University of Cambridge, Cambridge, UK
| | - Hongorzul Davaapil
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge Biomedical Campus, University of Cambridge, Cambridge, UK
| | - Semih Bayraktar
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge Biomedical Campus, University of Cambridge, Cambridge, UK
| | - Alexander D. B. Ross
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge Biomedical Campus, University of Cambridge, Cambridge, UK
- Department of Paediatrics, University of Cambridge, Cambridge, UK
- Department of Medical Genetics, University of Cambridge, Cambridge, UK
| | | | - James Cranley
- Wellcome Sanger Institute, Wellcome Genome Campus, Cambridge, UK
| | - Monika Dabrowska
- Wellcome Sanger Institute, Wellcome Genome Campus, Cambridge, UK
| | - Minal Patel
- Wellcome Sanger Institute, Wellcome Genome Campus, Cambridge, UK
| | | | - Xiaoling He
- John van Geest Centre for Brain Repair, Cambridge University, Cambridge, UK
| | - Ludovic Vallier
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge Biomedical Campus, University of Cambridge, Cambridge, UK
- Berlin Institute of Health (BIH), BIH Centre for Regenerative Therapies (BCRT), Charité - Universitätsmedizin, Berlin, Germany
- Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Sarah Teichmann
- Wellcome Sanger Institute, Wellcome Genome Campus, Cambridge, UK
- Cavendish Laboratory, Department of Physics, University of Cambridge, Cambridge, UK
| | - Laure Gambardella
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge Biomedical Campus, University of Cambridge, Cambridge, UK
- Wellcome Sanger Institute, Wellcome Genome Campus, Cambridge, UK
- These authors jointly supervised this work: Laure Gambardella, Sanjay Sinha
| | - Sanjay Sinha
- Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge Biomedical Campus, University of Cambridge, Cambridge, UK
- These authors jointly supervised this work: Laure Gambardella, Sanjay Sinha
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Bocci F, Zhou P, Nie Q. spliceJAC: transition genes and state-specific gene regulation from single-cell transcriptome data. Mol Syst Biol 2022; 18:e11176. [PMID: 36321549 PMCID: PMC9627675 DOI: 10.15252/msb.202211176] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 10/07/2022] [Accepted: 10/10/2022] [Indexed: 11/25/2022] Open
Abstract
Extracting dynamical information from single-cell transcriptomics is a novel task with the promise to advance our understanding of cell state transition and interactions between genes. Yet, theory-oriented, bottom-up approaches that consider differences among cell states are largely lacking. Here, we present spliceJAC, a method to quantify the multivariate mRNA splicing from single-cell RNA sequencing (scRNA-seq). spliceJAC utilizes the unspliced and spliced mRNA count matrices to constructs cell state-specific gene-gene regulatory interactions and applies stability analysis to predict putative driver genes critical to the transitions between cell states. By applying spliceJAC to biological systems including pancreas endothelium development and epithelial-mesenchymal transition (EMT) in A549 lung cancer cells, we predict genes that serve specific signaling roles in different cell states, recover important differentially expressed genes in agreement with pre-existing analysis, and predict new transition genes that are either exclusive or shared between different cell state transitions.
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Affiliation(s)
- Federico Bocci
- Department of MathematicsUniversity of CaliforniaIrvineCAUSA
- NSF‐Simons Center for Multiscale Cell Fate ResearchUniversity of CaliforniaIrvineCAUSA
| | - Peijie Zhou
- Department of MathematicsUniversity of CaliforniaIrvineCAUSA
| | - Qing Nie
- Department of MathematicsUniversity of CaliforniaIrvineCAUSA
- NSF‐Simons Center for Multiscale Cell Fate ResearchUniversity of CaliforniaIrvineCAUSA
- Department of Developmental and Cell BiologyUniversity of CaliforniaIrvineCAUSA
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44
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Ding S, Zhang X, Qiu H, Wo J, Zhang F, Na J. Non-cardiomyocytes in the heart in embryo development, health, and disease, a single-cell perspective. Front Cell Dev Biol 2022; 10:873264. [PMID: 36393852 PMCID: PMC9661523 DOI: 10.3389/fcell.2022.873264] [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: 02/10/2022] [Accepted: 10/14/2022] [Indexed: 11/25/2022] Open
Abstract
Recent single-cell atlases of the heart gave unprecedented details about the diversity of cell types and states during heart development in health and disease conditions. Beyond a profiling tool, researchers also use single-cell analyses to dissect the mechanism of diseases in animal models. The new knowledge from these studies revealed that beating cardiomyocytes account for less than 50% of the total heart cell population. In contrast, non-cardiomyocytes (NCMs), such as cardiac fibroblasts, endothelial cells, and immune cells, make up the remaining proportion and have indispensable roles in structural support, homeostasis maintenance, and injury repair of the heart. In this review, we categorize the composition and characteristics of NCMs from the latest single-cell studies of the heart in various contexts and compare the findings from both human samples and mouse models. This information will enrich our understanding of the cellular basis of heart development and diseases and provide insights into the potential therapeutic targets in NCMs to repair the heart.
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Affiliation(s)
- Shuangyuan Ding
- School of Medicine, Tsinghua University, Beijing, China
- Center for Life Sciences, Tsinghua University and Peking University, Beijing, China
- *Correspondence: Shuangyuan Ding, ; Jie Na,
| | - Xingwu Zhang
- School of Medicine, Tsinghua University, Beijing, China
| | - Hui Qiu
- School of Life Sciences, Tsinghua University, Beijing, China
| | - Jiaoyang Wo
- Center for Life Sciences, Tsinghua University and Peking University, Beijing, China
| | - Fengzhi Zhang
- Central Laboratory, First Hospital of Tsinghua University, Beijing, China
| | - Jie Na
- School of Medicine, Tsinghua University, Beijing, China
- *Correspondence: Shuangyuan Ding, ; Jie Na,
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DeBenedittis P, Karpurapu A, Henry A, Thomas MC, McCord TJ, Brezitski K, Prasad A, Baker CE, Kobayashi Y, Shah SH, Kontos CD, Tata PR, Lumbers RT, Karra R. Coupled myovascular expansion directs cardiac growth and regeneration. Development 2022; 149:dev200654. [PMID: 36134690 PMCID: PMC10692274 DOI: 10.1242/dev.200654] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 08/15/2022] [Indexed: 12/04/2023]
Abstract
Heart regeneration requires multiple cell types to enable cardiomyocyte (CM) proliferation. How these cells interact to create growth niches is unclear. Here, we profile proliferation kinetics of cardiac endothelial cells (CECs) and CMs in the neonatal mouse heart and find that they are spatiotemporally coupled. We show that coupled myovascular expansion during cardiac growth or regeneration is dependent upon VEGF-VEGFR2 signaling, as genetic deletion of Vegfr2 from CECs or inhibition of VEGFA abrogates both CEC and CM proliferation. Repair of cryoinjury displays poor spatial coupling of CEC and CM proliferation. Boosting CEC density after cryoinjury with virus encoding Vegfa enhances regeneration. Using Mendelian randomization, we demonstrate that circulating VEGFA levels are positively linked with human myocardial mass, suggesting that Vegfa can stimulate human cardiac growth. Our work demonstrates the importance of coupled CEC and CM expansion and reveals a myovascular niche that may be therapeutically targeted for heart regeneration.
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Affiliation(s)
- Paige DeBenedittis
- Division of Cardiology, Department of Medicine, Duke University Medical Center, Durham, NC 27710, USA
| | - Anish Karpurapu
- Division of Cardiology, Department of Medicine, Duke University Medical Center, Durham, NC 27710, USA
| | - Albert Henry
- Institute of Cardiovascular Science, University College London, London WC1E 6BT, UK
- Institute of Health Informatics, University College London, London WC1E 6BT, UK
| | - Michael C. Thomas
- Division of Cardiology, Department of Medicine, Duke University Medical Center, Durham, NC 27710, USA
| | - Timothy J. McCord
- Division of Cardiology, Department of Medicine, Duke University Medical Center, Durham, NC 27710, USA
| | - Kyla Brezitski
- Division of Cardiology, Department of Medicine, Duke University Medical Center, Durham, NC 27710, USA
| | - Anil Prasad
- Division of Cardiology, Department of Medicine, Duke University Medical Center, Durham, NC 27710, USA
| | - Caroline E. Baker
- Division of Cardiology, Department of Medicine, Duke University Medical Center, Durham, NC 27710, USA
| | | | - Svati H. Shah
- Division of Cardiology, Department of Medicine, Duke University Medical Center, Durham, NC 27710, USA
| | - Christopher D. Kontos
- Division of Cardiology, Department of Medicine, Duke University Medical Center, Durham, NC 27710, USA
- Department of Pharmacology & Cancer Biology, Duke University, Durham, NC 27710, USA
| | - Purushothama Rao Tata
- Department of Cell Biology, Duke University, Durham, NC 27710, USA
- Regeneration Next, Duke University, Durham, NC 27710, USA
- Center for Aging, Duke University Medical Center, Durham, NC 27710, USA
| | - R. Thomas Lumbers
- Institute of Health Informatics, University College London, London WC1E 6BT, UK
- Health Data Research UK London, University College London, London, WC1E 6BT, UK
- British Heart Foundation Research Accelerator, University College London, London WC1E 6BT, UK
| | - Ravi Karra
- Division of Cardiology, Department of Medicine, Duke University Medical Center, Durham, NC 27710, USA
- Regeneration Next, Duke University, Durham, NC 27710, USA
- Center for Aging, Duke University Medical Center, Durham, NC 27710, USA
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA
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Cho E, Cheon S, Ding M, Lim K, Park SW, Park C, Lee TH. Identification of Novel Genes for Cell Fusion during Osteoclast Formation. Int J Mol Sci 2022; 23:ijms23126421. [PMID: 35742859 PMCID: PMC9224196 DOI: 10.3390/ijms23126421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 06/07/2022] [Accepted: 06/07/2022] [Indexed: 12/04/2022] Open
Abstract
Osteoclasts are derived from hematopoietic stem cells. Monocyte preosteoclasts obtain resorbing activity via cell–cell fusion to generate multinucleated cells. However, the mechanisms and molecules involved in the fusion process are poorly understood. In this study, we performed RNA sequencing with single nucleated cells (SNCs) and multinucleated cells (MNCs) to identify the fusion-specific genes. The SNCs and MNCs were isolated under the same conditions during osteoclastogenesis with the receptor activator of nuclear factor-κB ligand (RANKL) administration. Based on this analysis, the expression of seven genes was found to be significantly increased in MNCs but decreased in SNCs, compared to that in bone marrow-derived macrophages (BMMs). We then generated knockout macrophage cell lines using a CRISPR-Cas9 genome-editing tool to examine their function during osteoclastogenesis. Calcrl-, Marco-, or Ube3a-deficient cells could not develop multinucleated giant osteoclasts upon RANKL stimulation. However, Tmem26-deficient cells fused more efficiently than control cells. Our findings demonstrate that Calcrl, Marco, and Ube3a are novel determinants of osteoclastogenesis, especially with respect to cell fusion, and highlight potential targets for osteoporosis therapy.
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Affiliation(s)
- Eunjin Cho
- Department of Oral Biochemistry, Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju 61186, Korea; (E.C.); (S.-W.P.)
| | - Seongmin Cheon
- School of Biological Sciences and Technology, Chonnam National University, Gwangju 61186, Korea; (S.C.); (C.P.)
- Proteomics Core Facility, Biomedical Research Institute, Seoul National University Hospital, Seoul 03080, Korea
| | - Mina Ding
- Biomedical Sciences Graduate Program, School of Medical, Chonnam National University, Gwangju 61186, Korea;
| | - Kayeong Lim
- Center for Genome Engineering, Institute for Basic Science, Daejeon 34126, Korea;
| | - Sang-Wook Park
- Department of Oral Biochemistry, Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju 61186, Korea; (E.C.); (S.-W.P.)
| | - Chungoo Park
- School of Biological Sciences and Technology, Chonnam National University, Gwangju 61186, Korea; (S.C.); (C.P.)
| | - Tae-Hoon Lee
- Department of Oral Biochemistry, Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju 61186, Korea; (E.C.); (S.-W.P.)
- Correspondence:
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Zhang X, Qiu H, Zhang F, Ding S. Advances in Single-Cell Multi-Omics and Application in Cardiovascular Research. Front Cell Dev Biol 2022; 10:883861. [PMID: 35733851 PMCID: PMC9207481 DOI: 10.3389/fcell.2022.883861] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 05/23/2022] [Indexed: 12/30/2022] Open
Abstract
With the development of ever more powerful and versatile high-throughput sequencing techniques and innovative ways to capture single cells, mapping the multicellular tissues at the single-cell level is becoming routine practice. However, it is still challenging to depict the epigenetic landscape of a single cell, especially the genome-wide chromatin accessibility, histone modifications, and DNA methylation. We summarize the most recent methodologies to profile these epigenetic marks at the single-cell level. We also discuss the development and advancement of several multi-omics sequencing technologies from individual cells. Advantages and limitations of various methods to compare and integrate datasets obtained from different sources are also included with specific practical notes. Understanding the heart tissue at single-cell resolution and multi-modal levels will help to elucidate the cell types and states involved in physiological and pathological events during heart development and disease. The rich information produced from single-cell multi-omics studies will also promote the research of heart regeneration and precision medicine on heart diseases.
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Affiliation(s)
- Xingwu Zhang
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, China
- *Correspondence: Xingwu Zhang,
| | - Hui Qiu
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, China
- School of Life Sciences, Tsinghua University, Beijing, China
| | - Fengzhi Zhang
- First Hospital of Tsinghua University, Beijing, China
| | - Shuangyuan Ding
- Center for Stem Cell Biology and Regenerative Medicine, School of Medicine, Tsinghua University, Beijing, China
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Zhang H, Pei L, Ouyang Z, Wang H, Chen X, Jiang K, Huang S, Jiang R, Xiang Y, Wei K. AP-1 activation mediates postnatal cardiomyocyte maturation. Cardiovasc Res 2022; 119:536-550. [PMID: 35640820 DOI: 10.1093/cvr/cvac088] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 05/05/2022] [Accepted: 05/12/2022] [Indexed: 11/13/2022] Open
Abstract
AIMS Postnatal maturation of mammalian cardiomyocytes proceeds rapidly after birth, with most of the myocytes exiting cell cycle, becoming binucleated, and adopting oxidative phosphorylation as the primary metabolic route. The triggers and transcriptional programs regulating cardiomyocyte maturation have not been fully understood yet. We performed single cell RNA-Seq in postnatal rat hearts in order to identify the important factors for this process. METHODS AND RESULTS Single cell RNA-Seq profiling was performed of postnatal day 1 and day 7 rat hearts, and we found that members of the AP-1 transcription factors showed a transient upregulation in the maturing cardiomyocytes, suggesting their functional involvement in the process. Activating members of the AP-1 family by palmitate or adrenergic stimulation inhibited cardiomyocyte cytokinesis and promoted cardiomyocyte maturation. In contrast, knocking down AP-1 members Atf3 and Jun promoted cardiomyocyte cytokinesis, reduced polyploidy and inhibited maturation. Mechanistically, RNA-Seq results and rescue experiments indicated that AP-1 members activate the expression of fatty acid metabolic genes to promote cardiomyocyte maturation. Finally, intraperitoneal injection of AP-1 inhibitor T-5224 in neonatal mice inhibits cardiomyocyte maturation in vivo. CONCLUSION Our results are the first evidence implicating AP-1 transcription factors in postnatal cardiomyocyte maturation both in vitro and in vivo, which expand our understanding of the molecular mechanism of cardiomyocyte maturation, and may lead to novel therapies to treat congenital heart diseases. TRANSLATIONAL PERSPECTIVE Postnatal cardiomyocyte maturation is a crucial process of cardiac development that determines fitness of the adult heart, and can be affected by multiple congenital heart diseases which lead to adult heart conditions. Our finding that AP-1 transcription factors transiently activated by multiple cues such as fatty acid and adrenergic signal promote cardiomyocyte maturation provided novel targets for therapeutic intervention, which may be applied during the narrow time window of postnatal cardiomyocyte maturation to treat congenital heart diseases and limit their impact on the adult heart.
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Affiliation(s)
- Hongjie Zhang
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Institute of Stem Cell Research and Clinical Translation, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, P.R. China
| | - Lijuan Pei
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Institute of Stem Cell Research and Clinical Translation, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, P.R. China
| | - Zhaohui Ouyang
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Institute of Stem Cell Research and Clinical Translation, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, P.R. China
| | - Haocun Wang
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Institute of Stem Cell Research and Clinical Translation, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, P.R. China
| | - Xin Chen
- School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Kai Jiang
- Shanghai East Hospital, Key Laboratory of Arrhythmias of the Ministry of Education of China, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Shiqi Huang
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Institute of Stem Cell Research and Clinical Translation, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, P.R. China
| | - Rui Jiang
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Institute of Stem Cell Research and Clinical Translation, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, P.R. China
| | - Yaozu Xiang
- Shanghai East Hospital, Key Laboratory of Arrhythmias of the Ministry of Education of China, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Ke Wei
- Institute for Regenerative Medicine, Shanghai East Hospital, Shanghai Institute of Stem Cell Research and Clinical Translation, Shanghai Key Laboratory of Signaling and Disease Research, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, P.R. China
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Karaaslanli A, Saha S, Aviyente S, Maiti T. scSGL: Kernelized Signed Graph Learning for Single-Cell Gene Regulatory Network Inference. Bioinformatics 2022; 38:3011-3019. [PMID: 35451460 DOI: 10.1093/bioinformatics/btac288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 03/10/2022] [Accepted: 04/19/2022] [Indexed: 11/14/2022] Open
Abstract
MOTIVATION Elucidating the topology of gene regulatory networks (GRNs) from large single-cell RNA sequencing (scRNAseq) datasets, while effectively capturing its inherent cell-cycle heterogeneity and dropouts, is currently one of the most pressing problems in computational systems biology. Recently, graph learning (GL) approaches based on graph signal processing (GSP) have been developed to infer graph topology from signals defined on graphs. However, existing GL methods are not suitable for learning signed graphs, a characteristic feature of GRNs, which are capable of accounting for both activating and inhibitory relationships in the gene network. They are also incapable of handling high proportion of zero values present in the single cell datasets. RESULTS To this end, we propose a novel signed GL approach, scSGL, that learns GRNs based on the assumption of smoothness and non-smoothness of gene expressions over activating and inhibitory edges, respectively. scSGL is then extended with kernels to account for non-linearity of co-expression and for effective handling of highly occurring zero values. The proposed approach is formulated as a non-convex optimization problem and solved using an efficient ADMM framework. Performance assessment using simulated datasets demonstrates the superior performance of kernelized scSGL over existing state of the art methods in GRN recovery. The performance of scSGL is further investigated using human and mouse embryonic datasets. AVAILABILITY AND IMPLEMENTATION The scSGL code and analysis scripts are available on https://github.com/Single-Cell-Graph-Learning/scSGL. SUPPLEMENTARY INFORMATION Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- Abdullah Karaaslanli
- Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI, 48824, US
| | - Satabdi Saha
- Department of Statistics and Probability, Michigan State University, East Lansing, MI, 48824, US
| | - Selin Aviyente
- Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI, 48824, US
| | - Tapabrata Maiti
- Department of Statistics and Probability, Michigan State University, East Lansing, MI, 48824, US
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50
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Methods of mouse cardiomyocyte isolation from postnatal heart. J Mol Cell Cardiol 2022; 168:35-43. [DOI: 10.1016/j.yjmcc.2022.04.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 03/15/2022] [Accepted: 04/09/2022] [Indexed: 01/10/2023]
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