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Luo X, Liu L, Rong H, Liu X, Yang L, Li N, Shi H. ENU-based dominant genetic screen identifies contractile and neuronal gene mutations in congenital heart disease. Genome Med 2024; 16:97. [PMID: 39135118 PMCID: PMC11318149 DOI: 10.1186/s13073-024-01372-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 08/05/2024] [Indexed: 08/15/2024] Open
Abstract
BACKGROUND Congenital heart disease (CHD) is the most prevalent congenital anomaly, but its underlying causes are still not fully understood. It is believed that multiple rare genetic mutations may contribute to the development of CHD. METHODS In this study, we aimed to identify novel genetic risk factors for CHD using an ENU-based dominant genetic screen in mice. We analyzed fetuses with malformed hearts and compared them to control littermates by whole exome or whole genome sequencing (WES/WGS). The differences in mutation rates between observed and expected values were tested using the Poisson and Binomial distribution. Additionally, we compared WES data from human CHD probands obtained from the Pediatric Cardiac Genomics Consortium with control subjects from the 1000 Genomes Project using Fisher's exact test to evaluate the burden of rare inherited damaging mutations in patients. RESULTS By screening 10,285 fetuses, we identified 1109 cases with various heart defects, with ventricular septal defects and bicuspid aortic valves being the most common types. WES/WGS analysis of 598 cases and 532 control littermates revealed a higher number of ENU-induced damaging mutations in cases compared to controls. GO term and KEGG pathway enrichment analysis showed that pathways related to cardiac contraction and neuronal development and functions were enriched in cases. Further analysis of 1457 human CHD probands and 2675 control subjects also revealed an enrichment of genes associated with muscle and nervous system development in patients. By combining the mice and human data, we identified a list of 101 candidate digenic genesets, from which each geneset was co-mutated in at least one mouse and two human probands with CHD but not in control mouse and control human subjects. CONCLUSIONS Our findings suggest that gene mutations affecting early hemodynamic perturbations in the developing heart may play a significant role as a genetic risk factor for CHD. Further validation of the candidate gene set identified in this study could enhance our understanding of the complex genetics underlying CHD and potentially lead to the development of new diagnostic and therapeutic approaches.
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Affiliation(s)
- Xiaoxi Luo
- College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang, China
- School of Medicine, Westlake University, Hangzhou, Zhejiang, China
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, 310024, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China
- Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang, China
| | - Lifeng Liu
- School of Medicine, Westlake University, Hangzhou, Zhejiang, China
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, 310024, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China
- Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang, China
| | - Haowei Rong
- School of Medicine, Westlake University, Hangzhou, Zhejiang, China
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, 310024, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China
- Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang, China
| | - Xiangyang Liu
- School of Medicine, Westlake University, Hangzhou, Zhejiang, China
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, 310024, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China
- Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang, China
| | - Ling Yang
- Westlake University High-Performance Computing Center, Westlake University, Hangzhou, Zhejiang, China
| | - Nan Li
- Westlake University High-Performance Computing Center, Westlake University, Hangzhou, Zhejiang, China
| | - Hongjun Shi
- School of Medicine, Westlake University, Hangzhou, Zhejiang, China.
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, 310024, China.
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China.
- Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang, China.
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2
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Giannino G, Braia V, Griffith Brookles C, Giacobbe F, D'Ascenzo F, Angelini F, Saglietto A, De Ferrari GM, Dusi V. The Intrinsic Cardiac Nervous System: From Pathophysiology to Therapeutic Implications. BIOLOGY 2024; 13:105. [PMID: 38392323 PMCID: PMC10887082 DOI: 10.3390/biology13020105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 02/24/2024]
Abstract
The cardiac autonomic nervous system (CANS) plays a pivotal role in cardiac homeostasis as well as in cardiac pathology. The first level of cardiac autonomic control, the intrinsic cardiac nervous system (ICNS), is located within the epicardial fat pads and is physically organized in ganglionated plexi (GPs). The ICNS system does not only contain parasympathetic cardiac efferent neurons, as long believed, but also afferent neurons and local circuit neurons. Thanks to its high degree of connectivity, combined with neuronal plasticity and memory capacity, the ICNS allows for a beat-to-beat control of all cardiac functions and responses as well as integration with extracardiac and higher centers for longer-term cardiovascular reflexes. The present review provides a detailed overview of the current knowledge of the bidirectional connection between the ICNS and the most studied cardiac pathologies/conditions (myocardial infarction, heart failure, arrhythmias and heart transplant) and the potential therapeutic implications. Indeed, GP modulation with efferent activity inhibition, differently achieved, has been studied for atrial fibrillation and functional bradyarrhythmias, while GP modulation with efferent activity stimulation has been evaluated for myocardial infarction, heart failure and ventricular arrhythmias. Electrical therapy has the unique potential to allow for both kinds of ICNS modulation while preserving the anatomical integrity of the system.
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Affiliation(s)
- Giuseppe Giannino
- Cardiology, Department of Medical Sciences, University of Turin, 10124 Torino, Italy
- Division of Cardiology, Cardiovascular and Thoracic Department, 'Città della Salute e della Scienza' Hospital, 10126 Torino, Italy
| | - Valentina Braia
- Cardiology, Department of Medical Sciences, University of Turin, 10124 Torino, Italy
- Division of Cardiology, Cardiovascular and Thoracic Department, 'Città della Salute e della Scienza' Hospital, 10126 Torino, Italy
| | - Carola Griffith Brookles
- Cardiology, Department of Medical Sciences, University of Turin, 10124 Torino, Italy
- Division of Cardiology, Cardiovascular and Thoracic Department, 'Città della Salute e della Scienza' Hospital, 10126 Torino, Italy
| | - Federico Giacobbe
- Cardiology, Department of Medical Sciences, University of Turin, 10124 Torino, Italy
- Division of Cardiology, Cardiovascular and Thoracic Department, 'Città della Salute e della Scienza' Hospital, 10126 Torino, Italy
| | - Fabrizio D'Ascenzo
- Cardiology, Department of Medical Sciences, University of Turin, 10124 Torino, Italy
- Division of Cardiology, Cardiovascular and Thoracic Department, 'Città della Salute e della Scienza' Hospital, 10126 Torino, Italy
| | - Filippo Angelini
- Division of Cardiology, Cardiovascular and Thoracic Department, 'Città della Salute e della Scienza' Hospital, 10126 Torino, Italy
| | - Andrea Saglietto
- Division of Cardiology, Cardiovascular and Thoracic Department, 'Città della Salute e della Scienza' Hospital, 10126 Torino, Italy
| | - Gaetano Maria De Ferrari
- Cardiology, Department of Medical Sciences, University of Turin, 10124 Torino, Italy
- Division of Cardiology, Cardiovascular and Thoracic Department, 'Città della Salute e della Scienza' Hospital, 10126 Torino, Italy
| | - Veronica Dusi
- Cardiology, Department of Medical Sciences, University of Turin, 10124 Torino, Italy
- Division of Cardiology, Cardiovascular and Thoracic Department, 'Città della Salute e della Scienza' Hospital, 10126 Torino, Italy
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3
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Khandoker AH, Wahbah M, Yoshida C, Kasahara Y, Funamoto K, Niizeki K, Kimura Y. Investigating the effect of cholinergic and adrenergic blocking agents on maternal-fetal heart rates and their interactions in mice fetuses. Biol Open 2022; 11:274473. [PMID: 35188546 PMCID: PMC9019529 DOI: 10.1242/bio.058999] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 02/15/2022] [Indexed: 11/20/2022] Open
Abstract
This study examines the role of autonomic control of maternal and fetal heart rate variability (MHRV and FHRV) and their heartbeats phase coupling prevalence (CPheartbeat) in mice. The subjects are divided into three groups: control with saline, cholinergic blockade with atropine, and β-adrenergic blockade with propranolol. Electrocardiogram signals of 27 anesthetized pregnant mice and 48 fetuses were measured for 20 min (drugs were administered after 10 min). For the coupling analysis, different maternal heartbeats were considered for one fetal beat. Results show that saline infusion did not produce any significant changes in MHRV and FHRV, as well as CPheartbeat. Atropine increased maternal HR (MHR) and decreased MHRV significantly without any considerable effect on fetal HR (FHR) and FHRV. Propranolol infusion did not produce any significant changes in MHR and MHRV, but significantly decreased FHR and increased FHRV. Moreover, atropine had led to a decrease in CPheartbeat when considering two and three maternal beats, and an increase for four beats; while propranolol resulted in a decrease for two heartbeats, but an increase for four and five beats. The proposed approach is useful for assessing the impact of maternal autonomic modulation activity on fetal distress and obstetric complications prevalent in pregnant mothers. Summary: Autonomic development of fetal mice is analyzed through electrocardiography. Saline infusion does not alter maternal and fetal heart rate variation and coupling significantly. Atropine increases maternal heart rate, while propranolol lowers fetal heart rate.
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Affiliation(s)
- Ahsan H Khandoker
- Health Engineering Innovation Center (HEIC), Department of Biomedical Engineering, Khalifa University, Abu Dhabi 127788, United Arab Emirates
| | - Maisam Wahbah
- Health Engineering Innovation Center (HEIC), Department of Biomedical Engineering, Khalifa University, Abu Dhabi 127788, United Arab Emirates
| | - Chihiro Yoshida
- Graduate School of Medicine, Tohoku University, Sendai, Japan
| | | | - Kiyoe Funamoto
- Health Engineering Innovation Center (HEIC), Department of Biomedical Engineering, Khalifa University, Abu Dhabi 127788, United Arab Emirates
| | - Kyuichi Niizeki
- Graduate School of Bio-System Engineering, Yamagata University, Yamagata, Japan
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4
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Mori S, Bradfield JS, Peacock WJ, Anderson RH, Shivkumar K. Living Anatomy of the Pericardial Space: A Guide for Imaging and Interventions. JACC Clin Electrophysiol 2021; 7:1628-1644. [PMID: 34949433 DOI: 10.1016/j.jacep.2021.09.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 09/16/2021] [Accepted: 09/21/2021] [Indexed: 12/29/2022]
Abstract
The pericardium of the human heart has received increased attention in recent times due to interest in the epicardial approach for cardiac interventions to treat cardiac arrhythmias refractory to conventional endocardial approaches. To support further clinical application of this technique, it is fundamental to appreciate the living anatomy of the pericardial space, as well as its relationships to the surrounding structures. The anatomy of the pericardial space, however, is extremely difficult regions to visualize. This is due to its complex 3-dimensionality, and the "potential" nature of the space, which becomes obvious only when there is collection of pericardial fluid. This potential space, which is bounded by the epicardium and pericardium, can now be visualized by special techniques as we now report, permitting appreciation of its living morphology. Current sources of knowledge are limited to the dissection images, surgical images, and/or illustrations, which are not necessarily precise or sufficient to provide relevant comprehensive anatomical knowledge to those undertaking the epicardial approach. The authors demonstrate, for the first time to their knowledge, the 3-dimensional living anatomy of the pericardial space relative to its surrounding structures. They also provide correlative anatomy of the left sternocostal triangle as a common site for subxiphoid access. The authors anticipate their report serving as a tool for education of imaging and interventional specialists.
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Affiliation(s)
- Shumpei Mori
- UCLA Cardiac Arrhythmia Center, UCLA Health System, David Geffen School of Medicine at UCLA, Los Angeles, California, USA; UCLA Cardiovascular Interventional Programs, Department of Medicine, David Geffen School of Medicine at UCLA & UCLA Health System, Los Angeles, California, USA
| | - Jason S Bradfield
- UCLA Cardiac Arrhythmia Center, UCLA Health System, David Geffen School of Medicine at UCLA, Los Angeles, California, USA; UCLA Cardiovascular Interventional Programs, Department of Medicine, David Geffen School of Medicine at UCLA & UCLA Health System, Los Angeles, California, USA
| | | | - Robert H Anderson
- Institute of Genetic Medicine, Newcastle University, Newcastle-upon-Tyne, United Kingdom
| | - Kalyanam Shivkumar
- UCLA Cardiac Arrhythmia Center, UCLA Health System, David Geffen School of Medicine at UCLA, Los Angeles, California, USA; UCLA Cardiovascular Interventional Programs, Department of Medicine, David Geffen School of Medicine at UCLA & UCLA Health System, Los Angeles, California, USA.
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5
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Chen W, Liu X, Li W, Shen H, Zeng Z, Yin K, Priest JR, Zhou Z. Single-cell transcriptomic landscape of cardiac neural crest cell derivatives during development. EMBO Rep 2021; 22:e52389. [PMID: 34569705 PMCID: PMC8567227 DOI: 10.15252/embr.202152389] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 08/19/2021] [Accepted: 08/27/2021] [Indexed: 01/04/2023] Open
Abstract
The migratory cardiac neural crest cells (CNCCs) contribute greatly to cardiovascular development. A thorough understanding of the cell lineages, developmental chronology, and transcriptomic states of CNCC derivatives during normal development is essential for deciphering the pathogenesis of CNCC‐associated congenital anomalies. Here, we perform single‐cell transcriptomic sequencing of 34,131 CNCC‐derived cells in mouse hearts covering eight developmental stages between E10.5 and P7. We report the presence of CNCC‐derived mural cells that comprise pericytes and microvascular smooth muscle cells (mVSMCs). Furthermore, we identify the transition from the CNCC‐derived pericytes to mVSMCs and the key regulators over the transition. In addition, our data support that many CNCC derivatives had already committed or differentiated to a specific lineage when migrating into the heart. We explore the spatial distribution of some critical CNCC‐derived subpopulations with single‐molecule fluorescence in situ hybridization. Finally, we computationally reconstruct the differentiation path and regulatory dynamics of CNCC derivatives. Our study provides novel insights into the cell lineages, developmental chronology, and regulatory dynamics of CNCC derivatives during development.
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Affiliation(s)
- Wen Chen
- State Key Laboratory of Cardiovascular Disease, Beijing Key Laboratory for Molecular Diagnostics of Cardiovascular Diseases, Center of Laboratory Medicine, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xuanyu Liu
- State Key Laboratory of Cardiovascular Disease, Beijing Key Laboratory for Molecular Diagnostics of Cardiovascular Diseases, Center of Laboratory Medicine, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Wenke Li
- State Key Laboratory of Cardiovascular Disease, Beijing Key Laboratory for Molecular Diagnostics of Cardiovascular Diseases, Center of Laboratory Medicine, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Huayan Shen
- State Key Laboratory of Cardiovascular Disease, Beijing Key Laboratory for Molecular Diagnostics of Cardiovascular Diseases, Center of Laboratory Medicine, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ziyi Zeng
- State Key Laboratory of Cardiovascular Disease, Beijing Key Laboratory for Molecular Diagnostics of Cardiovascular Diseases, Center of Laboratory Medicine, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Kunlun Yin
- State Key Laboratory of Cardiovascular Disease, Beijing Key Laboratory for Molecular Diagnostics of Cardiovascular Diseases, Center of Laboratory Medicine, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - James R Priest
- Stanford University School of Medicine, Stanford, CA, USA
| | - Zhou Zhou
- State Key Laboratory of Cardiovascular Disease, Beijing Key Laboratory for Molecular Diagnostics of Cardiovascular Diseases, Center of Laboratory Medicine, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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6
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Stoyek MR, Hortells L, Quinn TA. From Mice to Mainframes: Experimental Models for Investigation of the Intracardiac Nervous System. J Cardiovasc Dev Dis 2021; 8:149. [PMID: 34821702 PMCID: PMC8620975 DOI: 10.3390/jcdd8110149] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 10/28/2021] [Accepted: 11/01/2021] [Indexed: 01/17/2023] Open
Abstract
The intracardiac nervous system (IcNS), sometimes referred to as the "little brain" of the heart, is involved in modulating many aspects of cardiac physiology. In recent years our fundamental understanding of autonomic control of the heart has drastically improved, and the IcNS is increasingly being viewed as a therapeutic target in cardiovascular disease. However, investigations of the physiology and specific roles of intracardiac neurons within the neural circuitry mediating cardiac control has been hampered by an incomplete knowledge of the anatomical organisation of the IcNS. A more thorough understanding of the IcNS is hoped to promote the development of new, highly targeted therapies to modulate IcNS activity in cardiovascular disease. In this paper, we first provide an overview of IcNS anatomy and function derived from experiments in mammals. We then provide descriptions of alternate experimental models for investigation of the IcNS, focusing on a non-mammalian model (zebrafish), neuron-cardiomyocyte co-cultures, and computational models to demonstrate how the similarity of the relevant processes in each model can help to further our understanding of the IcNS in health and disease.
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Affiliation(s)
- Matthew R. Stoyek
- Department of Physiology and Biophysics, Dalhousie University, Halifax, NS 15000, Canada;
| | - Luis Hortells
- Institute for Experimental Cardiovascular Medicine, University Heart Centre Freiburg–Bad Krozingen, 79110 Freiburg, Germany;
- Faculty of Medicine, University of Freiburg, 79110 Freiburg, Germany
| | - T. Alexander Quinn
- Department of Physiology and Biophysics, Dalhousie University, Halifax, NS 15000, Canada;
- School of Biomedical Engineering, Dalhousie University, Halifax, NS 15000, Canada
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7
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Kasahara Y, Yoshida C, Saito M, Kimura Y. Assessments of Heart Rate and Sympathetic and Parasympathetic Nervous Activities of Normal Mouse Fetuses at Different Stages of Fetal Development Using Fetal Electrocardiography. Front Physiol 2021; 12:652828. [PMID: 33897461 PMCID: PMC8061630 DOI: 10.3389/fphys.2021.652828] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 03/19/2021] [Indexed: 12/28/2022] Open
Abstract
Heart rate is controlled by the activity of the autonomic nervous system: the sympathetic and parasympathetic nervous systems increase and suppress heart rate, respectively. To evaluate the activity of the autonomic nervous system, it is possible to determine heart rate variability using electrocardiography (ECG). During the fetal period, the heart and autonomic nerves develop in coordination; however, physiological changes, including autonomic nervous activities that occur during the fetal stage, remain largely unknown. Therefore, in this study, we measured ECG signals of mouse fetuses using our established method to evaluate the development of heart rate and autonomic nervous activity at different fetal developmental stages. We found that heart rate was significantly increased in fetal mice at embryonic day (E) 18.5 compared with that at E13.5, E15.5, and E17.5, indicating that fetal heart rate increases only at the stage immediately prior to birth. Interestingly, fetal parasympathetic nervous activity was reduced at E17.5 and E18.5 compared with that at E13.5, whereas fetal sympathetic nervous activity remained unchanged, at least from E13.5 to E18.5. These results indicate that parasympathetic activity rather than sympathetic activity affects fetal heart rate and that the decrease in parasympathetic activity toward the end of pregnancy could result in the observed increase in fetal heart rate.
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Affiliation(s)
- Yoshiyuki Kasahara
- Department of Maternal and Fetal Therapeutics, Tohoku University Graduate School of Medicine, Sendai, Japan.,Department of Maternal and Child Health Care Medical Science, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Chihiro Yoshida
- Department of Maternal and Fetal Therapeutics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Masatoshi Saito
- Department of Maternal and Fetal Therapeutics, Tohoku University Graduate School of Medicine, Sendai, Japan.,Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yoshitaka Kimura
- Department of Maternal and Fetal Therapeutics, Tohoku University Graduate School of Medicine, Sendai, Japan
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8
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Phosphodiesterases Expression during Murine Cardiac Development. Int J Mol Sci 2021; 22:ijms22052593. [PMID: 33807511 PMCID: PMC7961729 DOI: 10.3390/ijms22052593] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 12/19/2022] Open
Abstract
3′-5′ cyclic nucleotide phosphodiesterases (PDEs) are a large family of enzymes playing a fundamental role in the control of intracellular levels of cAMP and cGMP. Emerging evidence suggested an important role of phosphodiesterases in heart formation, but little is known about the expression of phosphodiesterases during cardiac development. In the present study, the pattern of expression and enzymatic activity of phosphodiesterases was investigated at different stages of heart formation. C57BL/6 mice were mated and embryos were collected from 14.5 to 18.5 days of development. Data obtained by qRT-PCR and Western blot analysis showed that seven different isoforms are expressed during heart development, and PDE1C, PDE2A, PDE4D, PDE5A and PDE8A are modulated from E14.5 to E18.5. In heart homogenates, the total cAMP and cGMP hydrolytic activity is constant at the evaluated times, and PDE4 accounts for the majority of the cAMP hydrolyzing ability and PDE2A accounts for cGMP hydrolysis. This study showed that a subset of PDEs is expressed in developing mice heart and some of them are modulated to maintain constant nucleotide phosphodiesterase activity in embryonic and fetal heart.
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Etchevers HC. Pericyte Ontogeny: The Use of Chimeras to Track a Cell Lineage of Diverse Germ Line Origins. Methods Mol Biol 2021; 2235:61-87. [PMID: 33576971 DOI: 10.1007/978-1-0716-1056-5_6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The goal of lineage tracing is to understand body formation over time by discovering which cells are the progeny of a specific, identified, ancestral progenitor. Subsidiary questions include unequivocal identification of what they have become, how many descendants develop, whether they live or die, and where they are located in the tissue or body at the end of the window examined. A classical approach in experimental embryology, lineage tracing continues to be used in developmental biology and stem cell and cancer research, wherever cellular potential and behavior need to be studied in multiple dimensions, of which one is time. Each technical approach has its advantages and drawbacks. This chapter, with some previously unpublished data, will concentrate nonexclusively on the use of interspecies chimeras to explore the origins of perivascular (or mural) cells, of which those adjacent to the vascular endothelium are termed pericytes for this purpose. These studies laid the groundwork for our understanding that pericytes derive from progenitor mesenchymal pools of multiple origins in the vertebrate embryo, some of which persist into adulthood. The results obtained through xenografting, like in the methodology described here, complement those obtained through genetic lineage-tracing techniques within a given species.
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10
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Hatzistergos KE, Durante MA, Valasaki K, Wanschel ACBA, Harbour JW, Hare JM. A novel cardiomyogenic role for Isl1 + neural crest cells in the inflow tract. SCIENCE ADVANCES 2020; 6:6/49/eaba9950. [PMID: 33268364 PMCID: PMC7821887 DOI: 10.1126/sciadv.aba9950] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 10/20/2020] [Indexed: 06/12/2023]
Abstract
The degree to which populations of cardiac progenitors (CPCs) persist in the postnatal heart remains a controversial issue in cardiobiology. To address this question, we conducted a spatiotemporally resolved analysis of CPC deployment dynamics, tracking cells expressing the pan-CPC gene Isl1 Most CPCs undergo programmed silencing during early cardiogenesis through proteasome-mediated and PRC2 (Polycomb group repressive complex 2)-mediated Isl1 repression, selectively in the outflow tract. A notable exception is a domain of cardiac neural crest cells (CNCs) in the inflow tract. These "dorsal CNCs" are regulated through a Wnt/β-catenin/Isl1 feedback loop and generate a limited number of trabecular cardiomyocytes that undergo multiple clonal divisions during compaction, to eventually produce ~10% of the biventricular myocardium. After birth, CNCs continue to generate cardiomyocytes that, however, exhibit diminished clonal amplification dynamics. Thus, although the postnatal heart sustains cardiomyocyte-producing CNCs, their regenerative potential is likely diminished by the loss of trabeculation-like proliferative properties.
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Affiliation(s)
- Konstantinos E Hatzistergos
- Aristotle University of Thessaloniki, Faculty of Sciences, School of Biology, Department of Genetics, Development and Molecular Biology, Thessaloniki 54124, Greece.
- Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Department of Cell Biology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Michael A Durante
- Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Krystalenia Valasaki
- Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Amarylis C B A Wanschel
- Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - J William Harbour
- Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Joshua M Hare
- Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Department of Medicine, University of Miami Miller School of Medicine, Miami, FL 33136, USA
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11
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Fedele L, Brand T. The Intrinsic Cardiac Nervous System and Its Role in Cardiac Pacemaking and Conduction. J Cardiovasc Dev Dis 2020; 7:jcdd7040054. [PMID: 33255284 PMCID: PMC7712215 DOI: 10.3390/jcdd7040054] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 11/19/2020] [Accepted: 11/20/2020] [Indexed: 12/11/2022] Open
Abstract
The cardiac autonomic nervous system (CANS) plays a key role for the regulation of cardiac activity with its dysregulation being involved in various heart diseases, such as cardiac arrhythmias. The CANS comprises the extrinsic and intrinsic innervation of the heart. The intrinsic cardiac nervous system (ICNS) includes the network of the intracardiac ganglia and interconnecting neurons. The cardiac ganglia contribute to the tight modulation of cardiac electrophysiology, working as a local hub integrating the inputs of the extrinsic innervation and the ICNS. A better understanding of the role of the ICNS for the modulation of the cardiac conduction system will be crucial for targeted therapies of various arrhythmias. We describe the embryonic development, anatomy, and physiology of the ICNS. By correlating the topography of the intracardiac neurons with what is known regarding their biophysical and neurochemical properties, we outline their physiological role in the control of pacemaker activity of the sinoatrial and atrioventricular nodes. We conclude by highlighting cardiac disorders with a putative involvement of the ICNS and outline open questions that need to be addressed in order to better understand the physiology and pathophysiology of the ICNS.
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Affiliation(s)
- Laura Fedele
- Correspondence: (L.F.); (T.B.); Tel.: +44-(0)-207-594-6531 (L.F.); +44-(0)-207-594-8744 (T.B.)
| | - Thomas Brand
- Correspondence: (L.F.); (T.B.); Tel.: +44-(0)-207-594-6531 (L.F.); +44-(0)-207-594-8744 (T.B.)
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12
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Montero P, Flandes-Iparraguirre M, Musquiz S, Pérez Araluce M, Plano D, Sanmartín C, Orive G, Gavira JJ, Prosper F, Mazo MM. Cells, Materials, and Fabrication Processes for Cardiac Tissue Engineering. Front Bioeng Biotechnol 2020; 8:955. [PMID: 32850768 PMCID: PMC7431658 DOI: 10.3389/fbioe.2020.00955] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 07/23/2020] [Indexed: 12/19/2022] Open
Abstract
Cardiovascular disease is the number one killer worldwide, with myocardial infarction (MI) responsible for approximately 1 in 6 deaths. The lack of endogenous regenerative capacity, added to the deleterious remodelling programme set into motion by myocardial necrosis, turns MI into a progressively debilitating disease, which current pharmacological therapy cannot halt. The advent of Regenerative Therapies over 2 decades ago kick-started a whole new scientific field whose aim was to prevent or even reverse the pathological processes of MI. As a highly dynamic organ, the heart displays a tight association between 3D structure and function, with the non-cellular components, mainly the cardiac extracellular matrix (ECM), playing both fundamental active and passive roles. Tissue engineering aims to reproduce this tissue architecture and function in order to fabricate replicas able to mimic or even substitute damaged organs. Recent advances in cell reprogramming and refinement of methods for additive manufacturing have played a critical role in the development of clinically relevant engineered cardiovascular tissues. This review focuses on the generation of human cardiac tissues for therapy, paying special attention to human pluripotent stem cells and their derivatives. We provide a perspective on progress in regenerative medicine from the early stages of cell therapy to the present day, as well as an overview of cellular processes, materials and fabrication strategies currently under investigation. Finally, we summarise current clinical applications and reflect on the most urgent needs and gaps to be filled for efficient translation to the clinical arena.
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Affiliation(s)
- Pilar Montero
- Regenerative Medicine Program, Cima Universidad de Navarra, Foundation for Applied Medical Research, Pamplona, Spain
| | - María Flandes-Iparraguirre
- Regenerative Medicine Program, Cima Universidad de Navarra, Foundation for Applied Medical Research, Pamplona, Spain
| | - Saioa Musquiz
- Regenerative Medicine Program, Cima Universidad de Navarra, Foundation for Applied Medical Research, Pamplona, Spain
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country – UPV/EHU, Vitoria-Gasteiz, Spain
| | - María Pérez Araluce
- Regenerative Medicine Program, Cima Universidad de Navarra, Foundation for Applied Medical Research, Pamplona, Spain
- Department of Pharmaceutical Technology and Chemistry, University of Navarra, Pamplona, Spain
| | - Daniel Plano
- Department of Pharmaceutical Technology and Chemistry, University of Navarra, Pamplona, Spain
- IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
| | - Carmen Sanmartín
- Department of Pharmaceutical Technology and Chemistry, University of Navarra, Pamplona, Spain
- IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
| | - Gorka Orive
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country – UPV/EHU, Vitoria-Gasteiz, Spain
- IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
- University Institute for Regenerative Medicine and Oral Implantology – UIRMI (UPV/EHU – Fundación Eduardo Anitua), Vitoria-Gasteiz, Spain
- Singapore Eye Research Institute, Singapore, Singapore
| | - Juan José Gavira
- IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
- Cardiology Department, Clínica Universidad de Navarra, Pamplona, Spain
| | - Felipe Prosper
- Regenerative Medicine Program, Cima Universidad de Navarra, Foundation for Applied Medical Research, Pamplona, Spain
- IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
- Hematology and Cell Therapy Area, Clínica Universidad de Navarra, Pamplona, Spain
| | - Manuel M. Mazo
- Regenerative Medicine Program, Cima Universidad de Navarra, Foundation for Applied Medical Research, Pamplona, Spain
- IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
- Hematology and Cell Therapy Area, Clínica Universidad de Navarra, Pamplona, Spain
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13
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Chen Z, Li S, Guo L, Peng X, Liu Y. Prenatal alcohol exposure induced congenital heart diseases: From bench to bedside. Birth Defects Res 2020; 113:521-534. [PMID: 32578335 DOI: 10.1002/bdr2.1743] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 05/22/2020] [Accepted: 05/23/2020] [Indexed: 12/27/2022]
Abstract
Alcohol consumption is increasing worldwide. Many child-bearing-aged women consume alcohol during pregnancy, intentionally or unintentionally, thereby increasing the potential risk for severe congenital diseases. Congenital heart disease (CHD) is the most common birth defect worldwide and can result from both hereditary and acquired factors. Prenatal alcohol exposure (PAE) is considered a key factor that leads to teratogenesis in CHD and its specific phenotypes, especially defects of the cardiac septa, cardiac valves, cardiac canals, and great arteries, adjacent to the chambers, both in animal experiments and clinical retrospective studies. The mechanisms underlying CHD and its phenotypes caused by PAE are associated with changes in retinoic acid biosynthesis and its signaling pathway, apoptosis and defective function of cardiac neural crest cells, disturbance of the Wntβ-catenin signaling pathway, suppression of bone morphogenetic protein (BMP) signaling, and other epigenetic mechanisms. Drug supplements and early diagnosis can help prevent PAE from inducing CHDs.
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Affiliation(s)
- Zhiyan Chen
- Department of Basic Medical Sciences, Sichuan Vocational College of Health and Rehabilitation, Zigong, Sichuan, China.,Department of Research, Zigong First People's Hospital, Zigong, Sichuan, China
| | - Sheng Li
- Department of Basic Medical Sciences, Sichuan Vocational College of Health and Rehabilitation, Zigong, Sichuan, China.,Department of Research, Zigong First People's Hospital, Zigong, Sichuan, China
| | - Linghong Guo
- Department of Pharmacology, West China School of Basic Sciences & Forensic Medicine; Animal Research Institute, Sichuan University, Chengdu, Sichuan, China
| | - Xu Peng
- Department of Pharmacology, West China School of Basic Sciences & Forensic Medicine; Animal Research Institute, Sichuan University, Chengdu, Sichuan, China
| | - Yin Liu
- Department of Basic Medical Sciences, Sichuan Vocational College of Health and Rehabilitation, Zigong, Sichuan, China.,Department of Research, Zigong First People's Hospital, Zigong, Sichuan, China.,Department of Pharmacology, West China School of Basic Sciences & Forensic Medicine; Animal Research Institute, Sichuan University, Chengdu, Sichuan, China.,Department of Anesthesiology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
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14
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Achanta S, Gorky J, Leung C, Moss A, Robbins S, Eisenman L, Chen J, Tappan S, Heal M, Farahani N, Huffman T, England S, Cheng ZJ, Vadigepalli R, Schwaber JS. A Comprehensive Integrated Anatomical and Molecular Atlas of Rat Intrinsic Cardiac Nervous System. iScience 2020; 23:101140. [PMID: 32460006 PMCID: PMC7327996 DOI: 10.1016/j.isci.2020.101140] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 03/11/2020] [Accepted: 05/01/2020] [Indexed: 12/21/2022] Open
Abstract
We have developed and integrated several technologies including whole-organ imaging and software development to support an initial precise 3D neuroanatomical mapping and molecular phenotyping of the intracardiac nervous system (ICN). While qualitative and gross anatomical descriptions of the anatomy of the ICN have each been pursued, we here bring forth a comprehensive atlas of the entire rat ICN at single-cell resolution. Our work precisely integrates anatomical and molecular data in the 3D digitally reconstructed whole heart with resolution at the micron scale. We now display the full extent and the position of neuronal clusters on the base and posterior left atrium of the rat heart, and the distribution of molecular phenotypes that are defined along the base-to-apex axis, which had not been previously described. The development of these approaches needed for this work has produced method pipelines that provide the means for mapping other organs. Comprehensive single-neuron-scale mapping of the intrinsic cardiac nervous system Whole-organ high-throughput imaging and reconstruction at a cellular resolution 3D anatomical framework for spatially tracked single-neuron molecular phenotypes Integrated histology, neuron mapping, and molecular profiles for 3D organ reconstruction
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Affiliation(s)
- Sirisha Achanta
- Daniel Baugh Institute for Functional Genomics/Computational Biology, Department of Pathology, Anatomy, and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Jonathan Gorky
- Daniel Baugh Institute for Functional Genomics/Computational Biology, Department of Pathology, Anatomy, and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Clara Leung
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL, USA
| | - Alison Moss
- Daniel Baugh Institute for Functional Genomics/Computational Biology, Department of Pathology, Anatomy, and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Shaina Robbins
- Daniel Baugh Institute for Functional Genomics/Computational Biology, Department of Pathology, Anatomy, and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Leonard Eisenman
- Daniel Baugh Institute for Functional Genomics/Computational Biology, Department of Pathology, Anatomy, and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Jin Chen
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL, USA
| | | | | | | | | | | | - Zixi Jack Cheng
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL, USA.
| | - Rajanikanth Vadigepalli
- Daniel Baugh Institute for Functional Genomics/Computational Biology, Department of Pathology, Anatomy, and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA.
| | - James S Schwaber
- Daniel Baugh Institute for Functional Genomics/Computational Biology, Department of Pathology, Anatomy, and Cell Biology, Thomas Jefferson University, Philadelphia, PA, USA.
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15
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Burczyk MS, Burkhalter MD, Tena TC, Grisanti LA, Kauk M, Matysik S, Donow C, Kustermann M, Rothe M, Cui Y, Raad F, Laue S, Moretti A, Zimmermann WH, Wess J, Kühl M, Hoffmann C, Tilley DG, Philipp M. Muscarinic receptors promote pacemaker fate at the expense of secondary conduction system tissue in zebrafish. JCI Insight 2019; 4:121971. [PMID: 31619590 PMCID: PMC6824298 DOI: 10.1172/jci.insight.121971] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 08/27/2019] [Indexed: 12/21/2022] Open
Abstract
Deterioration or inborn malformations of the cardiac conduction system (CCS) interfere with proper impulse propagation in the heart and may lead to sudden cardiac death or heart failure. Patients afflicted with arrhythmia depend on antiarrhythmic medication or invasive therapy, such as pacemaker implantation. An ideal way to treat these patients would be CCS tissue restoration. This, however, requires precise knowledge regarding the molecular mechanisms underlying CCS development. Here, we aimed to identify regulators of CCS development. We performed a compound screen in zebrafish embryos and identified tolterodine, a muscarinic receptor antagonist, as a modifier of CCS development. Tolterodine provoked a lower heart rate, pericardiac edema, and arrhythmia. Blockade of muscarinic M3, but not M2, receptors induced transcriptional changes leading to amplification of sinoatrial cells and loss of atrioventricular identity. Transcriptome data from an engineered human heart muscle model provided additional evidence for the contribution of muscarinic M3 receptors during cardiac progenitor specification and differentiation. Taken together, we found that muscarinic M3 receptors control the CCS already before the heart becomes innervated. Our data indicate that muscarinic receptors maintain a delicate balance between the developing sinoatrial node and the atrioventricular canal, which is probably required to prevent the development of arrhythmia.
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Affiliation(s)
- Martina S. Burczyk
- Institute of Biochemistry and Molecular Biology, Ulm University, Ulm, Germany
| | - Martin D. Burkhalter
- Institute of Biochemistry and Molecular Biology, Ulm University, Ulm, Germany
- Department of Experimental and Clinical Pharmacology and Pharmacogenomics, Division of Pharmacogenomics, University of Tuebingen, Tuebingen, Germany
| | - Teresa Casar Tena
- Institute of Biochemistry and Molecular Biology, Ulm University, Ulm, Germany
| | - Laurel A. Grisanti
- Center for Translational Medicine and Department of Pharmacology, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - Michael Kauk
- Institute for Molecular Cell Biology, University Hospital Jena, Friedrich-Schiller University of Jena, Jena, Germany
| | - Sabrina Matysik
- Institute of Biochemistry and Molecular Biology, Ulm University, Ulm, Germany
| | - Cornelia Donow
- Institute of Biochemistry and Molecular Biology, Ulm University, Ulm, Germany
| | - Monika Kustermann
- Institute of Biochemistry and Molecular Biology, Ulm University, Ulm, Germany
| | - Melanie Rothe
- Institute of Biochemistry and Molecular Biology, Ulm University, Ulm, Germany
| | - Yinghong Cui
- Molecular Signaling Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Farah Raad
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Göttingen, Germany
- German Centre for Cardiovascular Research (DZHK), partner site Göttingen, Germany
| | - Svenja Laue
- Medical Department — Molecular Cardiology, Technical University Munich, Munich, Germany
| | - Allessandra Moretti
- Medical Department — Molecular Cardiology, Technical University Munich, Munich, Germany
| | - Wolfram-H. Zimmermann
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Göttingen, Germany
- German Centre for Cardiovascular Research (DZHK), partner site Göttingen, Germany
| | - Jürgen Wess
- Molecular Signaling Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Michael Kühl
- Institute of Biochemistry and Molecular Biology, Ulm University, Ulm, Germany
| | - Carsten Hoffmann
- Institute for Molecular Cell Biology, University Hospital Jena, Friedrich-Schiller University of Jena, Jena, Germany
| | - Douglas G. Tilley
- Center for Translational Medicine and Department of Pharmacology, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - Melanie Philipp
- Institute of Biochemistry and Molecular Biology, Ulm University, Ulm, Germany
- Department of Experimental and Clinical Pharmacology and Pharmacogenomics, Division of Pharmacogenomics, University of Tuebingen, Tuebingen, Germany
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16
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Franke-Radowiecka A, Prozorowska E, Zalecki M, Jackowiak H, Kaleczyc J. Innervation of internal female genital organs in the pig during prenatal development. J Anat 2019; 235:1007-1017. [PMID: 31347705 DOI: 10.1111/joa.13052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/04/2019] [Indexed: 11/30/2022] Open
Abstract
This study investigated the innervation of internal genital organs in 5-, 7- and 10-week-old female pig foetuses using single and double-labelling immunofluorescence methods. The structure and topography of the organs was examined using a scanning electron microscope (SEM). The investigations revealed differences in the innervation between the three developmental periods. Immunostaining for protein gene product 9.5 (PGP; general neural marker) disclosed solitary nerve fibres in the external part of the gonadal ridge and just outside of the mesenchyme surrounding mesonephric ducts in 5-week-old foetuses. Double-labelling immunohistochemistry revealed that nerve fibres associated with the ridge expressed dopamine β-hydroxylase (DβH; adrenergic marker) or vesicular acetylcholine transporter (VAChT; cholinergic marker). In 7-week-old foetuses, the PGP-positive nerve terminals were absent from the gonad but some of them ran outside and along, and sometimes penetrated into the mesenchyme surrounding the tubal and uterine segments of the paramesonephric ducts and uterovaginal canal. Few axons penetrated into the mesenchyme. DβH-positive fibres were found in single nerve strands or bundles distributed at the edge of the mesenchyme. VAChT-positive nerve terminals formed delicate bundles located at the edge of the mesenchyme, and the single nerves penetrated into the mesenchyme. DβH was also expressed by neurons which formed cell clusters comprising also DβH- or VAChT-positive nerve fibres. In 10-week-old foetuses, PGP-positive nerve fibres were still absent from the ovary but some were distributed in the mesenchyme associated with the uterovaginal canal and uterine and a tubal segment of the paramesonephric ducts, respectively. DβH- or VAChT-positive nerve fibres were distributed at the periphery of the mesenchyme associated with the uterovaginal canal. Some DβH- and many VAChT-positive nerve fibres were evenly distributed throughout the mesenchyme. The clusters of nerve cells comprised DβH-positive perikarya and DβH- or VAChT-positive nerve fibres. The investigations revealed no DβH/VAChT-positive nerve fibres or neurons as well as no nerve structures stained for calcitonin gene-related peptide and/or substance P (sensory markers) associated with the genital organs in the studied prenatal periods.
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Affiliation(s)
- Amelia Franke-Radowiecka
- Department of Animal Anatomy, Faculty of Veterinary Medicine, University of Warmia and Mazury, Olsztyn, Poland
| | - Ewelina Prozorowska
- Department of Histology and Embryology, Poznań University of Life Sciences, Poznań, Poland
| | - Michal Zalecki
- Department of Animal Anatomy, Faculty of Veterinary Medicine, University of Warmia and Mazury, Olsztyn, Poland
| | - Hanna Jackowiak
- Department of Histology and Embryology, Poznań University of Life Sciences, Poznań, Poland
| | - Jerzy Kaleczyc
- Department of Animal Anatomy, Faculty of Veterinary Medicine, University of Warmia and Mazury, Olsztyn, Poland
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17
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Abstract
Major cardiovascular events including myocardial infarction (MI) continue to dominate morbidity rates in the developed world. Although multiple device therapies and various pharmacological agents have been shown to improve patient care and reduce mortality rates, clinicians and researchers alike still lack a true panacea to regenerate damaged cardiac tissue. Over the previous two to three decades, cardiovascular stem cell therapies have held great promise. Several stem cell-based approaches have now been shown to improve ventricular function and are documented in preclinical animal models as well as phase I and phase II clinical trials. More recently, the cardiac progenitor cell has begun to gain momentum as an ideal candidate for stem cell therapy in heart disease. Here, we will highlight the most recent advances in cardiac stem/progenitor cell biology in regard to both the basics and applied settings.
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18
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Downs AM, Jalloh HB, Prater KJ, Fregoso SP, Bond CE, Hampton TG, Hoover DB. Deletion of neurturin impairs development of cholinergic nerves and heart rate control in postnatal mouse hearts. Physiol Rep 2016; 4:4/9/e12779. [PMID: 27162260 PMCID: PMC4873631 DOI: 10.14814/phy2.12779] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 04/06/2016] [Indexed: 12/14/2022] Open
Abstract
The neurotrophic factor neurturin is required for normal cholinergic innervation of adult mouse heart and bradycardic responses to vagal stimulation. Our goals were to determine effects of neurturin deletion on development of cardiac chronotropic and dromotropic functions, vagal baroreflex response, and cholinergic nerve density in nodal regions of postnatal mice. Experiments were performed on postnatal C57BL/6 wild-type (WT) and neurturin knockout (KO) mice. Serial electrocardiograms were recorded noninvasively from conscious pups using an ECGenie apparatus. Mice were treated with atenolol to evaluate and block sympathetic effects on heart rate (HR) and phenylephrine (PE) to stimulate the baroreflex. Immunohistochemistry was used to label cholinergic nerves in paraffin sections. WT and KO mice showed similar age-dependent increases in HR and decreases in PR interval between postnatal days (P) 2.5 and 21. Treatment with atenolol reduced HR significantly in WT and KO pups at P7.5. PE caused a reflex bradycardia that was significantly smaller in KO pups. Cholinergic nerve density was significantly less in nodal regions of P7.5 KO mice. We conclude that cholinergic nerves have minimal influence on developmental changes in HR and PR, QRS, and QTc intervals in mouse pups. However, cholinergic nerves mediate reflex bradycardia by 1 week postnatally. Deletion of neurturin impairs cholinergic innervation of the heart and the vagal efferent component of the baroreflex early during postnatal development.
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Affiliation(s)
- Anthony M Downs
- Department of Biomedical Sciences, East Tennessee State University, Johnson City, Tennessee
| | - Hawa B Jalloh
- Department of Biomedical Sciences, East Tennessee State University, Johnson City, Tennessee
| | - Kayla J Prater
- Department of Biomedical Sciences, East Tennessee State University, Johnson City, Tennessee
| | - Santiago P Fregoso
- Department of Biomedical Sciences, East Tennessee State University, Johnson City, Tennessee
| | - Cherie E Bond
- Department of Biomedical Sciences, East Tennessee State University, Johnson City, Tennessee
| | | | - Donald B Hoover
- Department of Biomedical Sciences, East Tennessee State University, Johnson City, Tennessee Center of Excellence in Inflammation, Infectious Disease and Immunity, Quillen College of Medicine East Tennessee State University, Johnson City, Tennessee
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19
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Végh AMD, Duim SN, Smits AM, Poelmann RE, Ten Harkel ADJ, DeRuiter MC, Goumans MJ, Jongbloed MRM. Part and Parcel of the Cardiac Autonomic Nerve System: Unravelling Its Cellular Building Blocks during Development. J Cardiovasc Dev Dis 2016; 3:jcdd3030028. [PMID: 29367572 PMCID: PMC5715672 DOI: 10.3390/jcdd3030028] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Revised: 09/05/2016] [Accepted: 09/07/2016] [Indexed: 02/06/2023] Open
Abstract
The autonomic nervous system (cANS) is essential for proper heart function, and complications such as heart failure, arrhythmias and even sudden cardiac death are associated with an altered cANS function. A changed innervation state may underlie (part of) the atrial and ventricular arrhythmias observed after myocardial infarction. In other cardiac diseases, such as congenital heart disease, autonomic dysfunction may be related to disease outcome. This is also the case after heart transplantation, when the heart is denervated. Interest in the origin of the autonomic nerve system has renewed since the role of autonomic function in disease progression was recognized, and some plasticity in autonomic regeneration is evident. As with many pathological processes, autonomic dysfunction based on pathological innervation may be a partial recapitulation of the early development of innervation. As such, insight into the development of cardiac innervation and an understanding of the cellular background contributing to cardiac innervation during different phases of development is required. This review describes the development of the cANS and focuses on the cellular contributions, either directly by delivering cells or indirectly by secretion of necessary factors or cell-derivatives.
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Affiliation(s)
- Anna M D Végh
- Department of Molecular Cell Biology, Leiden University Medical Center, Einthovenweg 20, 2333 ZC Leiden, The Netherlands.
| | - Sjoerd N Duim
- Department of Molecular Cell Biology, Leiden University Medical Center, Einthovenweg 20, 2333 ZC Leiden, The Netherlands.
| | - Anke M Smits
- Department of Molecular Cell Biology, Leiden University Medical Center, Einthovenweg 20, 2333 ZC Leiden, The Netherlands.
| | - Robert E Poelmann
- Department of Cardiology, Leiden University Medical Center, Albinusdreef 2, 2333 ZC Leiden, The Netherlands.
- Institute of Biology Leiden, Leiden University, Sylviusweg 20, 2311 EZ Leiden, The Netherlands.
| | - Arend D J Ten Harkel
- Department of Pediatric Cardiology, Leiden University Medical Center, Albinusdreef 2, 2333 ZC Leiden, The Netherlands.
| | - Marco C DeRuiter
- Department of Anatomy & Embryology, Leiden University Medical Center, Einthovenweg 20, 2333 ZC Leiden, The Netherlands.
| | - Marie José Goumans
- Department of Molecular Cell Biology, Leiden University Medical Center, Einthovenweg 20, 2333 ZC Leiden, The Netherlands.
| | - Monique R M Jongbloed
- Department of Cardiology, Leiden University Medical Center, Albinusdreef 2, 2333 ZC Leiden, The Netherlands.
- Department of Pediatric Cardiology, Leiden University Medical Center, Albinusdreef 2, 2333 ZC Leiden, The Netherlands.
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20
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Månsson-Broberg A, Rodin S, Bulatovic I, Ibarra C, Löfling M, Genead R, Wärdell E, Felldin U, Granath C, Alici E, Le Blanc K, Smith CIE, Salašová A, Westgren M, Sundström E, Uhlén P, Arenas E, Sylvén C, Tryggvason K, Corbascio M, Simonson OE, Österholm C, Grinnemo KH. Wnt/β-Catenin Stimulation and Laminins Support Cardiovascular Cell Progenitor Expansion from Human Fetal Cardiac Mesenchymal Stromal Cells. Stem Cell Reports 2016; 6:607-617. [PMID: 27052314 PMCID: PMC4834052 DOI: 10.1016/j.stemcr.2016.02.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 02/19/2016] [Accepted: 02/22/2016] [Indexed: 11/29/2022] Open
Abstract
The intrinsic regenerative capacity of human fetal cardiac mesenchymal stromal cells (MSCs) has not been fully characterized. Here we demonstrate that we can expand cells with characteristics of cardiovascular progenitor cells from the MSC population of human fetal hearts. Cells cultured on cardiac muscle laminin (LN)-based substrata in combination with stimulation of the canonical Wnt/β-catenin pathway showed increased gene expression of ISL1, OCT4, KDR, and NKX2.5. The majority of cells stained positive for PDGFR-α, ISL1, and NKX2.5, and subpopulations also expressed the progenitor markers TBX18, KDR, c-KIT, and SSEA-1. Upon culture of the cardiac MSCs in differentiation media and on relevant LNs, portions of the cells differentiated into spontaneously beating cardiomyocytes, and endothelial and smooth muscle-like cells. Our protocol for large-scale culture of human fetal cardiac MSCs enables future exploration of the regenerative functions of these cells in the context of myocardial injury in vitro and in vivo. Cells with progenitor properties can be expanded from human fetal cardiac MSCs Specific LNs support expansion and differentiation of cardiac MSCs The fetal cardiac MSCs express ISL1, PDGFR-α, and NKX2.5 Subpopulations express the progenitor markers KDR, SSEA-1, c-KIT, and TBX18
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Affiliation(s)
- Agneta Månsson-Broberg
- Division of Cardiology, Department of Medicine, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Sergey Rodin
- Division of Matrix Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Ivana Bulatovic
- Division of Cardiothoracic Surgery and Anesthesiology, Department of Molecular Medicine and Surgery, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Cristián Ibarra
- Division of Molecular Neurobiology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, 17177 Stockholm, Sweden; Cardiovascular & Metabolic Diseases, Innovative Medicines and Early Development, AstraZeneca R&D, 43150 Mölndal, Sweden
| | - Marie Löfling
- Division of Cardiothoracic Surgery and Anesthesiology, Department of Molecular Medicine and Surgery, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Rami Genead
- Division of Cardiothoracic Surgery and Anesthesiology, Department of Molecular Medicine and Surgery, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Eva Wärdell
- Division of Cardiology, Department of Medicine, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Ulrika Felldin
- Division of Cardiothoracic Surgery and Anesthesiology, Department of Molecular Medicine and Surgery, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Carl Granath
- Division of Cardiothoracic Surgery and Anesthesiology, Department of Molecular Medicine and Surgery, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Evren Alici
- Division of Hematology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, 17177 Stockholm, Sweden; Cell Therapy Institute, Nova Southeastern University, Fort Lauderdale, FL 33314, USA
| | - Katarina Le Blanc
- Division of Hematology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, 17177 Stockholm, Sweden; Department of Laboratory Medicine, Karolinska Institutet, Karolinska University Hospital, 17177 Stockholm, Sweden
| | - C I Edvard Smith
- Department of Laboratory Medicine, Karolinska Institutet, Karolinska University Hospital, 17177 Stockholm, Sweden
| | - Alena Salašová
- Division of Molecular Neurobiology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Magnus Westgren
- CLINTEC, Division of Obstetrics and Gynecology, Karolinska Institutet, Karolinska University Hospital, 17177 Stockholm, Sweden
| | - Erik Sundström
- Division of Neurodegeneration, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Karolinska University Hospital, 17177 Stockholm, Sweden
| | - Per Uhlén
- Division of Molecular Neurobiology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Ernest Arenas
- Division of Molecular Neurobiology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Christer Sylvén
- Division of Cardiology, Department of Medicine, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Karl Tryggvason
- Division of Matrix Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, 17177 Stockholm, Sweden; Duke-NUS Graduate Medical School, Durham, NC 27710, USA
| | - Matthias Corbascio
- Division of Cardiothoracic Surgery and Anesthesiology, Department of Molecular Medicine and Surgery, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Oscar E Simonson
- Division of Cardiothoracic Surgery and Anesthesiology, Department of Molecular Medicine and Surgery, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Cecilia Österholm
- Division of Cardiothoracic Surgery and Anesthesiology, Department of Molecular Medicine and Surgery, Karolinska Institutet, 17177 Stockholm, Sweden; Cell Therapy Institute, Nova Southeastern University, Fort Lauderdale, FL 33314, USA
| | - Karl-Henrik Grinnemo
- Division of Cardiothoracic Surgery and Anesthesiology, Department of Molecular Medicine and Surgery, Karolinska Institutet, 17177 Stockholm, Sweden; Cell Therapy Institute, Nova Southeastern University, Fort Lauderdale, FL 33314, USA.
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21
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Tomanek RJ. Developmental Progression of the Coronary Vasculature in Human Embryos and Fetuses. Anat Rec (Hoboken) 2015; 299:25-41. [PMID: 26475042 DOI: 10.1002/ar.23283] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 06/10/2015] [Accepted: 06/12/2015] [Indexed: 01/01/2023]
Abstract
Although considerable advances in our understanding of mammalian and avian embryonic coronary development have occurred during the last decade, our current knowledge of this topic in humans is limited. Accordingly, the aim of this study was to determine if the development of the human coronary vasculature in humans is like that of other mammals and avians. The data document a progression of events involving mesenchymal cell-containing villi from the proepicardium, establishment of blood islands and a capillary network. The major finding of the study is direct evidence that the capillary plexus associated with spindle cells and erythroblasts invades the base of the aorta to form coronary ostia. A role for the dorsal mesocardium is also indicated by the finding that cells from this region are continuous with the aorta and pulmonary artery. The development of the tunica media of the coronary arteries follows the same base-apex progression as in other species, with the development of branches occurring late in the embryonic period. The fetal period is characterized by 1) growth and a numerical increase in the smallest arterial branches, veins, and venules, 2) innervation of arteries, and 3) inclusion of elastic fibers in the tunica media of the coronary arteries and development of the tunica adventitia. In conclusion, the data demonstrate that the development of the coronary system in humans is similar to that of other mammalian and avian species, and for the first time documents that the formation of the ostia and coronary stems in humans occurs by ingrowth of a vascular plexus and associated cells from the epicardium.
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Affiliation(s)
- Robert J Tomanek
- Department of Anatomy and Cell Biology, and Cardiovascular Center, University of Iowa, Iowa City, Iowa
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22
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Abstract
The latest discoveries and advanced knowledge in the fields of stem cell biology and developmental cardiology hold great promise for cardiac regenerative medicine, enabling researchers to design novel therapeutic tools and approaches to regenerate cardiac muscle for diseased hearts. However, progress in this arena has been hampered by a lack of reproducible and convincing evidence, which at best has yielded modest outcomes and is still far from clinical practice. To address current controversies and move cardiac regenerative therapeutics forward, it is crucial to gain a deeper understanding of the key cellular and molecular programs involved in human cardiogenesis and cardiac regeneration. In this review, we consider the fundamental principles that govern the "programming" and "reprogramming" of a human heart cell and discuss updated therapeutic strategies to regenerate a damaged heart.
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Affiliation(s)
- Makoto Sahara
- Department of Cell and Molecular Biology, Karolinska Institute, Stockholm, Sweden Department of Medicine-Cardiology, Karolinska Institute, Stockholm, Sweden
| | - Federica Santoro
- Department of Cell and Molecular Biology, Karolinska Institute, Stockholm, Sweden
| | - Kenneth R Chien
- Department of Cell and Molecular Biology, Karolinska Institute, Stockholm, Sweden Department of Medicine-Cardiology, Karolinska Institute, Stockholm, Sweden
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23
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Abstract
Autonomic cardiac neurons have a common origin in the neural crest but undergo distinct developmental differentiation as they mature toward their adult phenotype. Progenitor cells respond to repulsive cues during migration, followed by differentiation cues from paracrine sources that promote neurochemistry and differentiation. When autonomic axons start to innervate cardiac tissue, neurotrophic factors from vascular tissue are essential for maintenance of neurons before they reach their targets, upon which target-derived trophic factors take over final maturation, synaptic strength and postnatal survival. Although target-derived neurotrophins have a central role to play in development, alternative sources of neurotrophins may also modulate innervation. Both developing and adult sympathetic neurons express proNGF, and adult parasympathetic cardiac ganglion neurons also synthesize and release NGF. The physiological function of these “non-classical” cardiac sources of neurotrophins remains to be determined, especially in relation to autocrine/paracrine sustenance during development.
Cardiac autonomic nerves are closely spatially associated in cardiac plexuses, ganglia and pacemaker regions and so are sensitive to release of neurotransmitter, neuropeptides and trophic factors from adjacent nerves. As such, in many cardiac pathologies, it is an imbalance within the two arms of the autonomic system that is critical for disease progression. Although this crosstalk between sympathetic and parasympathetic nerves has been well established for adult nerves, it is unclear whether a degree of paracrine regulation occurs across the autonomic limbs during development. Aberrant nerve remodeling is a common occurrence in many adult cardiovascular pathologies, and the mechanisms regulating outgrowth or denervation are disparate. However, autonomic neurons display considerable plasticity in this regard with neurotrophins and inflammatory cytokines having a central regulatory function, including in possible neurotransmitter changes. Certainly, neurotrophins and cytokines regulate transcriptional factors in adult autonomic neurons that have vital differentiation roles in development. Particularly for parasympathetic cardiac ganglion neurons, additional examinations of developmental regulatory mechanisms will potentially aid in understanding attenuated parasympathetic function in a number of conditions, including heart failure.
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Affiliation(s)
- Wohaib Hasan
- Knight Cardiovascular Institute; Oregon Health & Science University; Portland, OR USA
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24
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Vincentz JW, Firulli BA, Lin A, Spicer DB, Howard MJ, Firulli AB. Twist1 controls a cell-specification switch governing cell fate decisions within the cardiac neural crest. PLoS Genet 2013; 9:e1003405. [PMID: 23555309 PMCID: PMC3605159 DOI: 10.1371/journal.pgen.1003405] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2012] [Accepted: 02/07/2013] [Indexed: 01/31/2023] Open
Abstract
Neural crest cells are multipotent progenitor cells that can generate both ectodermal cell types, such as neurons, and mesodermal cell types, such as smooth muscle. The mechanisms controlling this cell fate choice are not known. The basic Helix-loop-Helix (bHLH) transcription factor Twist1 is expressed throughout the migratory and post-migratory cardiac neural crest. Twist1 ablation or mutation of the Twist-box causes differentiation of ectopic neuronal cells, which molecularly resemble sympathetic ganglia, in the cardiac outflow tract. Twist1 interacts with the pro-neural factor Sox10 via its Twist-box domain and binds to the Phox2b promoter to repress transcriptional activity. Mesodermal cardiac neural crest trans-differentiation into ectodermal sympathetic ganglia-like neurons is dependent upon Phox2b function. Ectopic Twist1 expression in neural crest precursors disrupts sympathetic neurogenesis. These data demonstrate that Twist1 functions in post-migratory neural crest cells to repress pro-neural factors and thereby regulate cell fate determination between ectodermal and mesodermal lineages. During vertebrate development, a unique population of cells, termed neural crest cells, migrates throughout the developing embryo, generating various cell types, for example, the smooth muscle that divides the aorta and pulmonary artery where they connect to the heart, and the autonomic neurons, which coordinate organ function. The distinctions between neural crest cells that will form smooth muscle and those that will become neurons are thought to occur prior to migration. Here, we show that, in mice with mutations of the transcription factor Twist1, a subpopulation of presumptive smooth muscle cells, following migration to the heart, instead mis-specify to resemble autonomic neurons. Twist1 represses transcription of the pro-neural factor Phox2b both through antagonism of its upstream effector, Sox10, and through direct binding to its promoter. Phox2b is absolutely required for autonomic neuron development, and indeed, the aberrant neurons in Twist1 mutants disappear when Phox2b is also mutated. Ectopic Twist1 expression within all neural crest cells disrupts the specification of normal autonomic neurons. Collectively, these data reveal that neural crest cells can alter their cell fate from mesoderm to ectoderm after they have migrated and that Twist1 functions to maintain neural crest cell potency during embryonic development.
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Affiliation(s)
- Joshua W Vincentz
- Riley Heart Research Center, Herman B Wells Center for Pediatric Research, Division of Pediatrics Cardiology, Departments of Anatomy, Indiana University Medical School, Indianapolis, Indiana, United States of America
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25
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Kruithof BPT, Xu J, Fritz DT, Cabral CS, Gaussin V, Rogers MB. An in vivo map of bone morphogenetic protein 2 post-transcriptional repression in the heart. Genesis 2011; 49:841-50. [PMID: 21504044 DOI: 10.1002/dvg.20757] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2011] [Revised: 03/08/2011] [Accepted: 04/11/2011] [Indexed: 11/07/2022]
Abstract
The Bmp2 3'untranslated region (UTR) sequence bears a sequence conserved between mammals and fishes that can post-transcriptionally activate or repress protein synthesis. We developed a map of embryonic cells in the mouse where this potent Bmp2 regulatory sequence functions by using a lacZ reporter transgene with a 3'UTR bearing two loxP sites flanking the ultra-conserved sequence. Cre-recombinase-mediated deletion of the ultra-conserved sequence caused strong ectopic expression in proepicardium, epicardium and epicardium-derived cells (EPDC) and in tissues with known epicardial contributions (coronary vessels and valves). Transient transfections of reporters in the epicardial/mesothelial cell (EMC) line confirmed this repression. Ectopic expression of the recombined transgene also occurred in the aorta, outlet septum, posterior cardiac plexus, cardiac and extracardiac nerves and neural ganglia. Bmp2 is dynamically regulated in the developing heart. 3'UTR-mediated mechanisms that restrain BMP2 synthesis may be relevant to congenital heart and vasculature malformations and to adult diseases involving aberrant BMP2 synthesis.
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MESH Headings
- 3' Untranslated Regions
- Animals
- Bone Morphogenetic Protein 2/genetics
- Bone Morphogenetic Protein 2/metabolism
- Cell Line
- Conserved Sequence
- Embryo, Mammalian/cytology
- Embryo, Mammalian/metabolism
- Embryo, Mammalian/physiology
- Embryonic Development
- Gene Expression Regulation, Developmental
- Genes, Reporter
- Heart/embryology
- Heart/innervation
- Heart/physiology
- Immunohistochemistry
- Integrases/metabolism
- Lac Operon
- Mice
- Mice, Inbred C57BL
- Mice, Transgenic/genetics
- Mice, Transgenic/metabolism
- Neurofilament Proteins/genetics
- Neurofilament Proteins/metabolism
- Pericardium/cytology
- Pericardium/embryology
- Pericardium/metabolism
- Pericardium/physiology
- Protein Processing, Post-Translational
- Rats
- Regulatory Sequences, Nucleic Acid
- Sequence Deletion
- Transcription, Genetic
- Transfection
- Transgenes
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Affiliation(s)
- Boudewijn P T Kruithof
- Department of Cell Biology, University of Medicine and Dentistry (UMDNJ)-New Jersey Medical School (NJMS), Newark, New Jersey, USA
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26
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Mundell NA, Labosky PA. Neural crest stem cell multipotency requires Foxd3 to maintain neural potential and repress mesenchymal fates. Development 2011; 138:641-52. [PMID: 21228004 DOI: 10.1242/dev.054718] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Neural crest (NC) progenitors generate a wide array of cell types, yet molecules controlling NC multipotency and self-renewal and factors mediating cell-intrinsic distinctions between multipotent versus fate-restricted progenitors are poorly understood. Our earlier work demonstrated that Foxd3 is required for maintenance of NC progenitors in the embryo. Here, we show that Foxd3 mediates a fate restriction choice for multipotent NC progenitors with loss of Foxd3 biasing NC toward a mesenchymal fate. Neural derivatives of NC were lost in Foxd3 mutant mouse embryos, whereas abnormally fated NC-derived vascular smooth muscle cells were ectopically located in the aorta. Cranial NC defects were associated with precocious differentiation towards osteoblast and chondrocyte cell fates, and individual mutant NC from different anteroposterior regions underwent fate changes, losing neural and increasing myofibroblast potential. Our results demonstrate that neural potential can be separated from NC multipotency by the action of a single gene, and establish novel parallels between NC and other progenitor populations that depend on this functionally conserved stem cell protein to regulate self-renewal and multipotency.
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Affiliation(s)
- Nathan A Mundell
- Center for Stem Cell Biology, Vanderbilt University School of Medicine, Nashville, TN 37232-0494, USA
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27
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Bradshaw L, Chaudhry B, Hildreth V, Webb S, Henderson DJ. Dual role for neural crest cells during outflow tract septation in the neural crest-deficient mutant Splotch(2H). J Anat 2009; 214:245-57. [PMID: 19207986 DOI: 10.1111/j.1469-7580.2008.01028.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Splotch(2H) (Sp(2H)) is a well-recognized mouse model of neural crest cell (NCC) deficiency that develops a spectrum of cardiac outflow tract malformations including common arterial trunk, double outlet right ventricle, ventricular septal defects and pharyngeal arch artery patterning defects, as well as defects in other neural-crest derived organ systems. These defects have been ascribed to reduced NCC in the pharyngeal and outflow regions. Here we provide a detailed map of NCC within the pharyngeal arches and outflow tract of Sp(2H)/Sp(2H) embryos and fetuses, relating this to the development of the abnormal anatomy of these structures. In the majority of Sp(2H)/Sp(2H) embryos we show that deficiency of NCC in the pharyngeal region results in a failure to stabilize, and early loss of, posterior pharyngeal arch arteries. Furthermore, marked reduction in the NCC-derived mesenchyme in the dorsal wall of the aortic sac disrupts fusion with the distal outflow tract cushions, preventing the initiation of outflow tract septation and resulting in common arterial trunk. In around 25% of Sp(2H)/Sp(2H) embryos, posterior arch arteries are stabilized and fusion occurs between the dorsal wall of the aortic sac and the outflow cushions, initiating outflow tract septation; these embryos develop double outlet right ventricle. Thus, NCC are required in the pharyngeal region both for stabilization of posterior arch arteries and initiation of outflow tract septation. Loss of NCC also disrupts the distribution of second heart field cells in the pharyngeal and outflow regions. These secondary effects of NCC deficiency likely contribute to the overall outflow phenotype, suggesting that disrupted interactions between these two cell types may underlie many common outflow defects.
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Affiliation(s)
- Lucy Bradshaw
- Institute of Human Genetics, Newcastle University, Newcastle upon Tyne, UK
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