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Fontes MAP, Dos Santos Machado LR, Viana ACR, Cruz MH, Nogueira ÍS, Oliveira MGL, Neves CB, Godoy ACV, Henderson LA, Macefield VG. The insular cortex, autonomic asymmetry and cardiovascular control: looking at the right side of stroke. Clin Auton Res 2024:10.1007/s10286-024-01066-9. [PMID: 39316247 DOI: 10.1007/s10286-024-01066-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Accepted: 09/09/2024] [Indexed: 09/25/2024]
Abstract
PURPOSE Evidence from animal and human studies demonstrates that cortical regions play a key role in autonomic modulation with a differential role for some brain regions located in the left and right brain hemispheres. Known as autonomic asymmetry, this phenomenon has been demonstrated by clinical observations, by experimental models, and currently by combined neuroimaging and direct recordings of sympathetic nerve activity. Previous studies report peculiar autonomic-mediated cardiovascular alterations following unilateral damage to the left or right insula, a multifunctional key cortical region involved in emotional processing linked to autonomic cardiovascular control and featuring asymmetric characteristics. METHODS Based on clinical studies reporting specific damage to the insular cortex, this review aims to provide an overview of the prognostic significance of unilateral (left or right hemisphere) post-insular stroke cardiac alterations. In addition, we review experimental data aiming to unravel the central mechanisms involved in post-insular stroke cardiovascular complications. RESULTS AND CONCLUSION Current clinical and experimental data suggest that stroke of the right insula can present a worse cardiovascular prognosis.
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Affiliation(s)
- Marco Antônio Peliky Fontes
- Hypertension Laboratory, Department of Physiology and Biophysics - Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, 31270 901, Brazil.
| | - Liliane Ramos Dos Santos Machado
- Hypertension Laboratory, Department of Physiology and Biophysics - Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, 31270 901, Brazil
| | - Ana Clara Rocha Viana
- Hypertension Laboratory, Department of Physiology and Biophysics - Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, 31270 901, Brazil
| | - Matheus Henrique Cruz
- Hypertension Laboratory, Department of Physiology and Biophysics - Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, 31270 901, Brazil
| | - Ícaro Santos Nogueira
- Hypertension Laboratory, Department of Physiology and Biophysics - Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, 31270 901, Brazil
| | - Marcela Gondim Lima Oliveira
- Hypertension Laboratory, Department of Physiology and Biophysics - Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, 31270 901, Brazil
| | - Christiane Braga Neves
- Hypertension Laboratory, Department of Physiology and Biophysics - Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, 31270 901, Brazil
| | - Ana Caroline Ventris Godoy
- Hypertension Laboratory, Department of Physiology and Biophysics - Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, MG, 31270 901, Brazil
| | | | - Vaughan G Macefield
- Department of Neuroscience, Monash University, Melbourne, Australia
- Baker Department of Cardiometabolic Health, University of Melbourne, Melbourne, Australia
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2
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Männer J. The Functional Significance of Cardiac Looping: Comparative Embryology, Anatomy, and Physiology of the Looped Design of Vertebrate Hearts. J Cardiovasc Dev Dis 2024; 11:252. [PMID: 39195160 DOI: 10.3390/jcdd11080252] [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: 07/10/2024] [Revised: 08/12/2024] [Accepted: 08/15/2024] [Indexed: 08/29/2024] Open
Abstract
The flow path of vertebrate hearts has a looped configuration characterized by curved (sigmoid) and twisted (chiral) components. The looped heart design is phylogenetically conserved among vertebrates and is thought to represent a significant determinant of cardiac pumping function. It evolves during the embryonic period of development by a process called "cardiac looping". During the past decades, remarkable progress has been made in the uncovering of genetic, molecular, and biophysical factors contributing to cardiac looping. Our present knowledge of the functional consequences of cardiac looping lags behind this impressive progress. This article provides an overview and discussion of the currently available information on looped heart design and its implications for the pumping function. It is emphasized that: (1) looping seems to improve the pumping efficiency of the valveless embryonic heart. (2) bilaterally asymmetric (chiral) looping plays a central role in determining the alignment and separation of the pulmonary and systemic flow paths in the multi-chambered heart of tetrapods. (3) chiral looping is not needed for efficient pumping of the two-chambered hearts of fish. (4) it is the sigmoid curving of the flow path that may improve the pumping efficiency of lower as well as higher vertebrate hearts.
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Affiliation(s)
- Jörg Männer
- Group Cardio-Embryology, Institute of Anatomy and Cell Biology, UMG, Georg-August-University Goettingen, D-37075 Goettingen, Germany
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3
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Kodirov SA, Herbinger T, Rohwedder A. Comparable properties of native K channels in the atrium and ventricle of snails. Comp Biochem Physiol C Toxicol Pharmacol 2024; 282:109938. [PMID: 38723703 DOI: 10.1016/j.cbpc.2024.109938] [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: 02/22/2024] [Revised: 04/20/2024] [Accepted: 05/02/2024] [Indexed: 06/04/2024]
Abstract
Mollusks, including snails, possess two chambered hearts. The heart and cardiomyocytes of snails have many similarities with those of mammals. Also, the biophysics and pharmacology of Ca, K, and Na ion channels resemble. Similar to mammals, in mollusks, the ventricular cardiomyocytes and K channels are often studied, which are selectively sensitive to antagonists such as 4-AP, E-4031, and TEA. Since the physiological properties of the ventricular cardiac cells of snails are well characterized, the enzymatically dissociated atrial cardiomyocytes of Cornu aspersum (Müller, 1774) were studied using the whole-cell patch-clamp technique for detailed comparisons with mice, Mus musculus. The incubation of tissues in a solution simultaneously containing two enzymes, collagenase and papain, enabled the isolation of single cells. Recordings in the atrial cardiomyocytes of snails revealed outward K+ currents closely resembling those of the ventricle. The latter was consistent, whether the voltage ramp or steps and long or short pulses were used. Interestingly, under identical conditions, the current waveforms of atrial cardiomyocytes in snails were similar to those of mice left ventricles, albeit the kinetics and the absence of inward rectifier K channel (IK1) activation. Therefore, the heart of mollusks could be used as a simple and accessible experimental model, particularly for pharmacology and toxicology studies.
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Affiliation(s)
- Sodikdjon A Kodirov
- Department of Cardiology, Medical University Hospital Heidelberg, 69120 Heidelberg, Germany; Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA; Department of Biophysics, Saint Petersburg University, 199034 Saint Petersburg, Russia; Institute of Biophysics, Johannes Kepler University, Linz, Austria.
| | - Tobias Herbinger
- Institut für Anatomie und Zellbiologie, Johannes Kepler University, Linz, Austria
| | - Arndt Rohwedder
- Core Facility Imaging, ZMF, Johannes Kepler University, Linz, Austria
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Lu M, Hayat R, Zhang X, Jiao Y, Huang J, Huangfu Y, Jiang M, Fu J, Jiang Q, Gu Y, Wang S, Akerberg AA, Su Y, Zhao L. Comparative analysis of the cardiac structure and transcriptome of scallop and snail, perspectives on heart chamber evolution. MARINE LIFE SCIENCE & TECHNOLOGY 2023; 5:478-491. [PMID: 38045548 PMCID: PMC10689705 DOI: 10.1007/s42995-023-00202-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 10/24/2023] [Indexed: 12/05/2023]
Abstract
The evolution of a two-chambered heart, with an atrium and a ventricle, has improved heart function in both deuterostomes (vertebrates) and some protostomes (invertebrates). Although studies have examined the unique structure and function of these two chambers, molecular comparisons are few and limited to vertebrates. Here, we focus on the two-chambered protostome heart of the mollusks, offering data that may provide a better understanding of heart evolution. Specifically, we asked if the atrium and ventricle differ at the molecular level in the mollusk heart. To do so, we examined two very different species, the giant African land snail (Lissachatina fulica) and the relatively small, aquatic yesso scallop (Mizuhopecten yessoensis), with the assumption that if they exhibited commonality these similarities would likely reflect those across the phylum. We found that, although the hearts of these two species differed histologically, their cardiac gene function enrichments were similar, as revealed by transcriptomic analysis. Furthermore, the atrium and ventricle in each species had distinct gene function clusters, suggesting an evolutionary differentiation of cardiac chambers in mollusks. Finally, to explore the relationship between vertebrate and invertebrate two-chambered hearts, we compared our transcriptomic data with published data from the zebrafish, a well-studied vertebrate model with a two-chambered heart. Our analysis indicated a functional similarity of ventricular genes between the mollusks and the zebrafish, suggesting that the ventricle was differentiated to achieve the same functions in invertebrates and vertebrates. As the first such study on protostomes, our findings offered initial insights into how the two-chambered heart arose, including a possible understanding of its occurrence in both protostomes and deuterostomes. Supplementary Information The online version contains supplementary material available at 10.1007/s42995-023-00202-0.
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Affiliation(s)
- Meina Lu
- Key Laboratory of Evolution and Marine Biodiversity (Ministry of Education) and Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266003 China
- College of Fisheries, Ocean University of China, Qingdao, 266003 China
| | - Rabia Hayat
- Key Laboratory of Evolution and Marine Biodiversity (Ministry of Education) and Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266003 China
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003 China
| | - Xuejiao Zhang
- Key Laboratory of Evolution and Marine Biodiversity (Ministry of Education) and Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266003 China
- College of Fisheries, Ocean University of China, Qingdao, 266003 China
| | - Yaqi Jiao
- Key Laboratory of Evolution and Marine Biodiversity (Ministry of Education) and Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266003 China
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003 China
| | - Jianyun Huang
- College of Fisheries, Ocean University of China, Qingdao, 266003 China
| | - Yifan Huangfu
- College of Fisheries, Ocean University of China, Qingdao, 266003 China
| | - Mingcan Jiang
- College of Fisheries, Ocean University of China, Qingdao, 266003 China
| | - Jieyi Fu
- College of Fisheries, Ocean University of China, Qingdao, 266003 China
| | - Qingqiu Jiang
- College of Fisheries, Ocean University of China, Qingdao, 266003 China
| | - Yaojia Gu
- College of Fisheries, Ocean University of China, Qingdao, 266003 China
| | - Shi Wang
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003 China
- Fang Zongxi Centre for Marine EvoDevo and MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003 China
| | - Alexander A. Akerberg
- Division of Basic and Translational Cardiovascular Research, Department of Cardiology, Boston Children’s Hospital, Boston, MA 02115 USA
- Harvard Medical School, Boston, MA 02115 USA
| | - Ying Su
- Key Laboratory of Evolution and Marine Biodiversity (Ministry of Education) and Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266003 China
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003 China
| | - Long Zhao
- Key Laboratory of Evolution and Marine Biodiversity (Ministry of Education) and Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266003 China
- College of Fisheries, Ocean University of China, Qingdao, 266003 China
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Lawless WF, Moskowitz IS, Doctor KZ. A Quantum-like Model of Interdependence for Embodied Human-Machine Teams: Reviewing the Path to Autonomy Facing Complexity and Uncertainty. ENTROPY (BASEL, SWITZERLAND) 2023; 25:1323. [PMID: 37761622 PMCID: PMC10528279 DOI: 10.3390/e25091323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/28/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023]
Abstract
In this review, our goal is to design and test quantum-like algorithms for Artificial Intelligence (AI) in open systems to structure a human-machine team to be able to reach its maximum performance. Unlike the laboratory, in open systems, teams face complexity, uncertainty and conflict. All task domains have complexity levels-some low, and others high. Complexity in this new domain is affected by the environment and the task, which are both affected by uncertainty and conflict. We contrast individual and interdependence approaches to teams. The traditional and individual approach focuses on building teams and systems by aggregating the best available information for individuals, their thoughts, behaviors and skills. Its concepts are characterized chiefly by one-to-one relations between mind and body, a summation of disembodied individual mental and physical attributes, and degrees of freedom corresponding to the number of members in a team; however, this approach is characterized by the many researchers who have invested in it for almost a century with few results that can be generalized to human-machine interactions; by the replication crisis of today (e.g., the invalid scale for self-esteem); and by its many disembodied concepts. In contrast, our approach is based on the quantum-like nature of interdependence. It allows us theorization about the bistability of mind and body, but it poses a measurement problem and a non-factorable nature. Bistability addresses team structure and performance; the measurement problem solves the replication crisis; and the non-factorable aspect of teams reduces the degrees of freedom and the information derivable from teammates to match findings by the National Academies of Science. We review the science of teams and human-machine team research in the laboratory versus in the open field; justifications for rejecting traditional social science while supporting our approach; a fuller understanding of the complexity of teams and tasks; the mathematics involved; a review of results from our quantum-like model in the open field (e.g., tradeoffs between team structure and performance); and the path forward to advance the science of interdependence and autonomy.
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Affiliation(s)
- William F. Lawless
- Department of Mathematics and Psychology, Paine College, Augusta, GA 30901, USA
| | - Ira S. Moskowitz
- Naval Research Laboratory, Information Technology Division, Washington, DC 20375, USA; (I.S.M.); (K.Z.D.)
| | - Katarina Z. Doctor
- Naval Research Laboratory, Information Technology Division, Washington, DC 20375, USA; (I.S.M.); (K.Z.D.)
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Gafranek JT, D'Aniello E, Ravisankar P, Thakkar K, Vagnozzi RJ, Lim HW, Salomonis N, Waxman JS. Sinus venosus adaptation models prolonged cardiovascular disease and reveals insights into evolutionary transitions of the vertebrate heart. Nat Commun 2023; 14:5509. [PMID: 37679366 PMCID: PMC10485058 DOI: 10.1038/s41467-023-41184-y] [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: 04/26/2022] [Accepted: 08/24/2023] [Indexed: 09/09/2023] Open
Abstract
How two-chambered hearts in basal vertebrates have evolved from single-chamber hearts found in ancestral chordates remains unclear. Here, we show that the teleost sinus venosus (SV) is a chamber-like vessel comprised of an outer layer of smooth muscle cells. We find that in adult zebrafish nr2f1a mutants, which lack atria, the SV comes to physically resemble the thicker bulbus arteriosus (BA) at the arterial pole of the heart through an adaptive, hypertensive response involving smooth muscle proliferation due to aberrant hemodynamic flow. Single cell transcriptomics show that smooth muscle and endothelial cell populations within the adapting SV also take on arterial signatures. Bulk transcriptomics of the blood sinuses flanking the tunicate heart reinforce a model of greater equivalency in ancestral chordate BA and SV precursors. Our data simultaneously reveal that secondary complications from congenital heart defects can develop in adult zebrafish similar to those in humans and that the foundation of equivalency between flanking auxiliary vessels may remain latent within basal vertebrate hearts.
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Affiliation(s)
- Jacob T Gafranek
- Molecular and Developmental Biology Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH, 45267, USA
- Division of Molecular Cardiovascular Biology and Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Enrico D'Aniello
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, 80121, Napoli, Italy
| | - Padmapriyadarshini Ravisankar
- Division of Molecular Cardiovascular Biology and Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Kairavee Thakkar
- Division of Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
- Department of Pharmacology and Systems Physiology, University of Cincinnati, College of Medicine, Cincinnati, OH, 45267, USA
| | - Ronald J Vagnozzi
- Division of Cardiology, Gates Center for Regenerative Medicine, Consortium for Fibrosis Research and Translation (CFReT), University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Hee-Woong Lim
- Division of Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
- Department of Pediatrics, University of Cincinnati, College of Medicine, Cincinnati, OH, 45267, USA
| | - Nathan Salomonis
- Division of Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
- Department of Pediatrics, University of Cincinnati, College of Medicine, Cincinnati, OH, 45267, USA
| | - Joshua S Waxman
- Division of Molecular Cardiovascular Biology and Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA.
- Department of Pediatrics, University of Cincinnati, College of Medicine, Cincinnati, OH, 45267, USA.
- Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA.
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7
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DeMoya RA, Forman-Rubinsky RE, Fontaine D, Shin J, Watkins SC, Lo C, Tsang M. Sin3a Associated Protein 130kDa, sap130, plays an evolutionary conserved role in zebrafish heart development. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.30.534737. [PMID: 37034673 PMCID: PMC10081270 DOI: 10.1101/2023.03.30.534737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Hypoplastic left heart syndrome (HLHS) is a congenital heart disease where the left ventricle is reduced in size. A forward genetic screen in mice identified SIN3A associated protein 130kDa ( Sap130 ), a protein in the chromatin modifying SIN3A/HDAC1 complex, as a gene contributing to the digenic etiology of HLHS. Here, we report the role of zebrafish sap130 genes in heart development. Loss of sap130a, one of two Sap130 orthologs, resulted in smaller ventricle size, a phenotype reminiscent to the hypoplastic left ventricle in mice. While cardiac progenitors were normal during somitogenesis, diminution of the ventricle size suggest the Second Heart Field (SHF) was the source of the defect. To explore the role of sap130a in gene regulation, transcriptome profiling was performed after the heart tube formation to identify candidate pathways and genes responsible for the small ventricle phenotype. Genes involved in cardiac differentiation and cell communication were dysregulated in sap130a , but not in sap130b mutants. Confocal light sheet analysis measured deficits in cardiac output in MZsap130a supporting the notion that cardiomyocyte maturation was disrupted. Lineage tracing experiments revealed a significant reduction of SHF cells in the ventricle that resulted in increased outflow tract size. These data suggest that sap130a is involved in cardiogenesis via regulating the accretion of SHF cells to the growing ventricle and in their subsequent maturation for cardiac function. Further, genetic studies revealed an interaction between hdac1 and sap130a , in the incidence of small ventricles. These studies highlight the conserved role of Sap130a and Hdac1 in zebrafish cardiogenesis.
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Affiliation(s)
- Ricardo A DeMoya
- Department of Developmental Biology, University of Pittsburgh, School of Medicine, Pittsburgh PA 15213, USA
| | - Rachel E Forman-Rubinsky
- Department of Developmental Biology, University of Pittsburgh, School of Medicine, Pittsburgh PA 15213, USA
| | - Deon Fontaine
- Department of Developmental Biology, University of Pittsburgh, School of Medicine, Pittsburgh PA 15213, USA
| | - Joseph Shin
- Department of Developmental Biology, University of Pittsburgh, School of Medicine, Pittsburgh PA 15213, USA
| | - Simon C Watkins
- Department of Cell Biology and Molecular Physiology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15261, USA
| | - Cecilia Lo
- Department of Developmental Biology, University of Pittsburgh, School of Medicine, Pittsburgh PA 15213, USA
| | - Michael Tsang
- Department of Developmental Biology, University of Pittsburgh, School of Medicine, Pittsburgh PA 15213, USA
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Cao Y, Zhang X, Akerberg BN, Yuan H, Sakamoto T, Xiao F, VanDusen NJ, Zhou P, Sweat ME, Wang Y, Prondzynski M, Chen J, Zhang Y, Wang P, Kelly DP, Pu WT. In Vivo Dissection of Chamber-Selective Enhancers Reveals Estrogen-Related Receptor as a Regulator of Ventricular Cardiomyocyte Identity. Circulation 2023; 147:881-896. [PMID: 36705030 PMCID: PMC10010668 DOI: 10.1161/circulationaha.122.061955] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
BACKGROUND Cardiac chamber-selective transcriptional programs underpin the structural and functional differences between atrial and ventricular cardiomyocytes (aCMs and vCMs). The mechanisms responsible for these chamber-selective transcriptional programs remain largely undefined. METHODS We nominated candidate chamber-selective enhancers (CSEs) by determining the genome-wide occupancy of 7 key cardiac transcription factors (GATA4, MEF2A, MEF2C, NKX2-5, SRF, TBX5, TEAD1) and transcriptional coactivator P300 in atria and ventricles. Candidate enhancers were tested using an adeno-associated virus-mediated massively parallel reporter assay. Chromatin features of CSEs were evaluated by performing assay of transposase accessible chromatin sequencing and acetylation of histone H3 at lysine 27-HiChIP on aCMs and vCMs. CSE sequence requirements were determined by systematic tiling mutagenesis of 29 CSEs at 5 bp resolution. Estrogen-related receptor (ERR) function in cardiomyocytes was evaluated by Cre-loxP-mediated inactivation of ERRα and ERRγ in cardiomyocytes. RESULTS We identified 134 066 and 97 506 regions reproducibly occupied by at least 1 transcription factor or P300, in atria or ventricles, respectively. Enhancer activities of 2639 regions bound by transcription factors or P300 were tested in aCMs and vCMs by adeno-associated virus-mediated massively parallel reporter assay. This identified 1092 active enhancers in aCMs or vCMs. Several overlapped loci associated with cardiovascular disease through genome-wide association studies, and 229 exhibited chamber-selective activity in aCMs or vCMs. Many CSEs exhibited differential chromatin accessibility between aCMs and vCMs, and CSEs were enriched for aCM- or vCM-selective acetylation of histone H3 at lysine 27-anchored loops. Tiling mutagenesis of 29 CSEs identified the binding motif of ERRα/γ as important for ventricular enhancer activity. The requirement of ERRα/γ to activate ventricular CSEs and promote vCM identity was confirmed by loss of the vCM gene profile in ERRα/γ knockout vCMs. CONCLUSIONS We identified 229 CSEs that could be useful research tools or direct therapeutic gene expression. We showed that chamber-selective multi-transcription factor, P300 occupancy, open chromatin, and chromatin looping are predictive features of CSEs. We found that ERRα/γ are essential for maintenance of ventricular identity. Finally, our gene expression, epigenetic, 3-dimensional genome, and enhancer activity atlas provide key resources for future studies of chamber-selective gene regulation.
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Affiliation(s)
- Yangpo Cao
- Department of Cardiology, Boston Children's Hospital, Boston, MA (Y.C., X.Z., B.N.A., F.X., P.Z., M.E.S., Y.W., M.P., J.C., Y.Z., P.W., W.T.P.)
| | - Xiaoran Zhang
- Department of Cardiology, Boston Children's Hospital, Boston, MA (Y.C., X.Z., B.N.A., F.X., P.Z., M.E.S., Y.W., M.P., J.C., Y.Z., P.W., W.T.P.)
| | - Brynn N Akerberg
- Department of Cardiology, Boston Children's Hospital, Boston, MA (Y.C., X.Z., B.N.A., F.X., P.Z., M.E.S., Y.W., M.P., J.C., Y.Z., P.W., W.T.P.)
| | - Haiyun Yuan
- Department of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangzhou, China (H.Y.)
| | - Tomoya Sakamoto
- Cardiovascular Institute, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia (T.S., D.P.K.)
| | - Feng Xiao
- Department of Cardiology, Boston Children's Hospital, Boston, MA (Y.C., X.Z., B.N.A., F.X., P.Z., M.E.S., Y.W., M.P., J.C., Y.Z., P.W., W.T.P.)
| | - Nathan J VanDusen
- Herman B Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis (N.J.V.)
| | - Pingzhu Zhou
- Department of Cardiology, Boston Children's Hospital, Boston, MA (Y.C., X.Z., B.N.A., F.X., P.Z., M.E.S., Y.W., M.P., J.C., Y.Z., P.W., W.T.P.)
| | - Mason E Sweat
- Department of Cardiology, Boston Children's Hospital, Boston, MA (Y.C., X.Z., B.N.A., F.X., P.Z., M.E.S., Y.W., M.P., J.C., Y.Z., P.W., W.T.P.)
| | - Yi Wang
- Department of Cardiology, Boston Children's Hospital, Boston, MA (Y.C., X.Z., B.N.A., F.X., P.Z., M.E.S., Y.W., M.P., J.C., Y.Z., P.W., W.T.P.)
| | - Maksymilian Prondzynski
- Department of Cardiology, Boston Children's Hospital, Boston, MA (Y.C., X.Z., B.N.A., F.X., P.Z., M.E.S., Y.W., M.P., J.C., Y.Z., P.W., W.T.P.)
| | - Jian Chen
- Department of Cardiology, Boston Children's Hospital, Boston, MA (Y.C., X.Z., B.N.A., F.X., P.Z., M.E.S., Y.W., M.P., J.C., Y.Z., P.W., W.T.P.)
| | - Yan Zhang
- Department of Cardiology, Boston Children's Hospital, Boston, MA (Y.C., X.Z., B.N.A., F.X., P.Z., M.E.S., Y.W., M.P., J.C., Y.Z., P.W., W.T.P.)
| | - Peizhe Wang
- Department of Cardiology, Boston Children's Hospital, Boston, MA (Y.C., X.Z., B.N.A., F.X., P.Z., M.E.S., Y.W., M.P., J.C., Y.Z., P.W., W.T.P.)
| | - Daniel P Kelly
- Cardiovascular Institute, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia (T.S., D.P.K.)
| | - William T Pu
- Department of Cardiology, Boston Children's Hospital, Boston, MA (Y.C., X.Z., B.N.A., F.X., P.Z., M.E.S., Y.W., M.P., J.C., Y.Z., P.W., W.T.P.).,Harvard Stem Cell Institute, Cambridge, MA (W.T.P.)
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9
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Rocha LIQ, Oliveira MFDS, Dias LC, Franco de Oliveira M, de Moura CEB, Magalhães MDS. Heart morphology during the embryonic development of Podocnemis unifilis Trosquel 1948 (Testudines: Podocnemididae). Anat Rec (Hoboken) 2023; 306:193-212. [PMID: 35808951 DOI: 10.1002/ar.25041] [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: 03/11/2022] [Revised: 06/09/2022] [Accepted: 06/27/2022] [Indexed: 01/29/2023]
Abstract
Cardiogenesis is similar in all vertebrates, but differences in the valvuloseptal morphogenesis among non-crocodilian reptiles, birds, and mammals are noted. The origin of mesenchymal structures such as valves that regulate the passage of blood and the formation of partial septa that prevent the complete mixing of oxygen-rich and low-oxygen blood present in adult chelonians are essential in the evolutionary understanding of complete septation, endothermy and malformations, even in mammals. In this context, this study analyzed the heart morphogenesis of Podocnemis unifilis (Testudines: Podocnemididae) from the 4th to the 60th day of incubation. We identified the tubular heart stage, folding of the cardiac tube and expansion of the atrial and ventricular compartments followed by atrial septation by the septum primum, ventricle septation by partial septa, outflow tract septation and the formation of bicuspid valves with cartilage differentiation at the base. The formation of the first atrial septum with the mesenchymal cap is noted during the development of the atrial septum, joining the atrioventricular cushion on the 17th day and completely dividing the atria. Small secondary perforations appeared in the mid-cranial part, observed up to the 45th day. Partial ventricle septation into the pulmonary, venous, and arterial subcompartments takes place by trabeculae carneae thickening and grouping on the 15th day. The outflow tract forms the aorticopulmonary and interaortic septa on the 16th day and the bicuspid valves, on the 20th day. Therefore, after the first 20 days, the heart exhibits a general anatomical conformation similar to that of adult turtles.
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Affiliation(s)
- Layla Ianca Queiroz Rocha
- Programa de Pós-graduação em Biologia de Água Doce e Pesca Interior, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, Brazil
| | - Maria Fabiele da Silva Oliveira
- Programa de Pós-graduação em Biologia de Água Doce e Pesca Interior, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, Brazil
| | - Lucas Castanhola Dias
- Laboratório Temático de Microscopia e Nanotecnologia, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, Brazil
| | - Moacir Franco de Oliveira
- Departamento de Ciências Animais, Universidade Federal Rural do Semi-Árido, Mossoró, Rio Grande do Norte, Brazil
| | | | - Marcela Dos Santos Magalhães
- Programa de Pós-graduação em Biologia de Água Doce e Pesca Interior, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, Brazil.,Departamento de Morfologia, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
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10
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Gregorovicova M, Bartos M, Jensen B, Janacek J, Minne B, Moravec J, Sedmera D. Anguimorpha as a model group for studying the comparative heart morphology among Lepidosauria: Evolutionary window on the ventricular septation. Ecol Evol 2022; 12:e9476. [PMID: 36381397 PMCID: PMC9643144 DOI: 10.1002/ece3.9476] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 10/10/2022] [Accepted: 10/14/2022] [Indexed: 11/11/2022] Open
Abstract
The group Anguimorpha represents one of the most unified squamate clades in terms of body plan, ecomorphology, ecophysiology and evolution. On the other hand, the anguimorphs vary between different habitats and ecological niches. Therefore, we focused on the group Anguimorpha to test a possible correlation between heart morphology and ecological niche with respect to phylogenetic position in Squamata with Sphenodon, Salvator, and Pogona as the outgroups. The chosen lepidosaurian species were investigated by microCT. Generally, all lepidosaurs had two well-developed atria with complete interatrial septum and one ventricle divided by ventricular septa to three different areas. The ventricles of all lepidosaurians had a compact layer and abundant trabeculae. The compact layer and trabeculae were developed in accordance with particular ecological niche of the species, the trabeculae in nocturnal animals with low metabolism, such as Sphenodon, Heloderma or Lanthanotus were more massive. On the other hand athletic animals, such as varanids or Salvator, had ventricle compartmentalization divided by three incomplete septa. A difference between varanids and Salvator was found in compact layer thickness: thicker in monitor lizards and possibly linked to their mammalian-like high blood pressure, and the level of ventricular septation. In summary: heart morphology varied among clades in connection with the ecological niche of particular species and it reflects the phylogenetic position in model clade Anguimorpha. In the absence of fossil evidence, this is the closest approach how to understand heart evolution and septation in clade with different cardiac compartmentalization levels.
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Affiliation(s)
- Martina Gregorovicova
- First Faculty of Medicine, Institute of AnatomyCharles UniversityPragueCzech Republic
| | - Martin Bartos
- First Faculty of Medicine, Institute of AnatomyCharles UniversityPragueCzech Republic
- First Faculty of MedicineInstitute of Dental Medicine, Charles UniversityPragueCzech Republic
| | - Bjarke Jensen
- Department of Medical Biology, Amsterdam Cardiovascular SciencesUniversity of AmsterdamAmsterdamThe Netherlands
| | - Jiri Janacek
- Laboratory of Biomathematics, Institute of PhysiologyCzech Academy of SciencesPragueCzech Republic
| | - Bryan Minne
- Amphibian Evolution LabFree University of BrusselsBrusselsBelgium
| | | | - David Sedmera
- First Faculty of Medicine, Institute of AnatomyCharles UniversityPragueCzech Republic
- Laboratory of Developmental Cardiology, Institute of PhysiologyCzech Academy of SciencesPragueCzech Republic
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11
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Nishiyama A, Kitada K, Suzuki M. Blood pressure adaptation in vertebrates: Comparative biology. Kidney Int 2022; 102:242-247. [PMID: 35671910 DOI: 10.1016/j.kint.2022.03.032] [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: 01/07/2022] [Revised: 03/18/2022] [Accepted: 03/30/2022] [Indexed: 11/26/2022]
Abstract
With evolution from water to land, the osmotic regulation of body fluids and cardiovascular systems of vertebrates evolved to cope with dryness and gravity. While aquatic vertebrates can use buoyancy to compensate for the effects of gravity, terrestrial vertebrates cannot, and must circulate blood throughout their body - a necessity that likely led to the development of strong hearts and high blood pressure. These changes may be supported by anatomical evolution of the cardiovascular system and by functional evolution, with alterations in hormonal systems. Thus, during the evolution of terrestrial animals, increased performance of body functions to endure harsher environments was required, necessitating increased blood pressure. In an age of overeating and insufficient exercise, modern man does not fully utilize the high levels of physical functions acquired through evolution. Drastic changes in our living environment cause hypertension, the pathogenesis of which remains unknown. To survive in new environments, as might be expected in outer space or underwater, an understanding is required of how changes in blood pressure have occurred that enabled adaptation through evolution in vertebrates.
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Affiliation(s)
- Akira Nishiyama
- Department of Pharmacology, Faculty of Medicine, Kagawa University, Kagawa, Japan.
| | - Kento Kitada
- Department of Pharmacology, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Miwa Suzuki
- Department of Marine Science and Resources, College of Bioresource Sciences, Nihon University, Fujisawa, Japan
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12
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McAndry C, Collins M, Tills O, Spicer JI, Truebano M. Regulation of gene expression during ontogeny of physiological function in the brackishwater amphipod Gammarus chevreuxi. Mar Genomics 2022; 63:100948. [PMID: 35427917 DOI: 10.1016/j.margen.2022.100948] [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: 12/03/2021] [Revised: 03/14/2022] [Accepted: 03/16/2022] [Indexed: 10/18/2022]
Abstract
Embryonic development is a complex process involving the co-ordinated onset and integration of multiple morphological features and physiological functions. While the molecular basis of morphological development in embryos is relatively well known for traditional model species, the molecular underpinning of the development of physiological functions is not. Here, we used global gene expression profiling to investigate the transcriptional changes associated with the development of morphological and physiological function in the amphipod crustacean Gammarus chevreuxi. We compared the transcriptomes at three timepoints during the latter half of development, characterised by different stages of the development of heart form and function: 10 days post fertilisation (dpf, Early: no heart structure visible), 15 dpf (Middle: heart present but not fully functional), and 18 dpf (Late: regular heartbeat). Gene expression profiles differed markedly between developmental stages, likely representing a change in the activity of different processes throughout the latter period of G. chevreuxi embryonic development. Differentially expressed genes belonged to one of three distinct clusters based on their expression patterns across development. One of these clusters, which included key genes relating to cardiac contractile machinery and calcium handling, displayed a pattern of sequential up-regulation throughout the developmental period studied. Further analyses of these transcripts could reveal genes that may influence the onset of a regular heartbeat. We also identified morphological and physiological processes that may occur alongside heart development, such as development of digestive caeca and the cuticle. Elucidating the mechanisms underpinning morphological and physiological development of non-model organisms will support improved understanding of conserved mechanisms, addressing the current phylogenetic gap between relatively well known model species.
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Affiliation(s)
- C McAndry
- Marine Biology and Ecology Research Centre, School of Biological and Marine Sciences, University of Plymouth, Drake Circus, Plymouth PL4 8AA, UK
| | - M Collins
- Marine Biology and Ecology Research Centre, School of Biological and Marine Sciences, University of Plymouth, Drake Circus, Plymouth PL4 8AA, UK
| | - O Tills
- Marine Biology and Ecology Research Centre, School of Biological and Marine Sciences, University of Plymouth, Drake Circus, Plymouth PL4 8AA, UK
| | - J I Spicer
- Marine Biology and Ecology Research Centre, School of Biological and Marine Sciences, University of Plymouth, Drake Circus, Plymouth PL4 8AA, UK
| | - M Truebano
- Marine Biology and Ecology Research Centre, School of Biological and Marine Sciences, University of Plymouth, Drake Circus, Plymouth PL4 8AA, UK.
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13
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Jensen B, Christoffels VM, Moorman AFM. An Appreciation of Anatomy in the Molecular World. J Cardiovasc Dev Dis 2020; 7:E44. [PMID: 33076272 PMCID: PMC7712948 DOI: 10.3390/jcdd7040044] [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: 09/25/2020] [Revised: 10/12/2020] [Accepted: 10/13/2020] [Indexed: 12/29/2022] Open
Abstract
Robert H. Anderson is one of the most important and accomplished cardiac anatomists of the last decades, having made major contributions to our understanding of the anatomy of normal hearts and the pathologies of acquired and congenital heart diseases. While cardiac anatomy as a research discipline has become largely subservient to molecular biology, anatomists like Professor Anderson demonstrate anatomy has much to offer. Here, we provide cases of early anatomical insights on the heart that were rediscovered, and expanded on, by molecular techniques: migration of neural crest cells to the heart was deduced from histological observations (1908) and independently shown again with experimental interventions; pharyngeal mesoderm is added to the embryonic heart (1973) in what is now defined as the molecularly distinguishable second heart field; chambers develop from the heart tube as regional pouches in what is now considered the ballooning model by the molecular identification of regional differentiation and proliferation. The anatomical discovery of the conduction system by Purkinje, His, Tawara, Keith, and Flack is a special case because the main findings were never neglected in later molecular studies. Professor Anderson has successfully demonstrated that sound knowledge of anatomy is indispensable for proper understanding of cardiac development.
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Affiliation(s)
- Bjarke Jensen
- Department of Medical Biology, Amsterdam Cardiovascular Sciences, University of Amsterdam, Amsterdam UMC, Meibergdreef 15, 1105AZ Amsterdam, The Netherlands; (V.M.C.); (A.F.M.M.)
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14
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Michel JB. Phylogenic Determinants of Cardiovascular Frailty, Focus on Hemodynamics and Arterial Smooth Muscle Cells. Physiol Rev 2020; 100:1779-1837. [DOI: 10.1152/physrev.00022.2019] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The evolution of the circulatory system from invertebrates to mammals has involved the passage from an open system to a closed in-parallel system via a closed in-series system, accompanying the increasing complexity and efficiency of life’s biological functions. The archaic heart enables pulsatile motion waves of hemolymph in invertebrates, and the in-series circulation in fish occurs with only an endothelium, whereas mural smooth muscle cells appear later. The present review focuses on evolution of the circulatory system. In particular, we address how and why this evolution took place from a closed, flowing, longitudinal conductance at low pressure to a flowing, highly pressurized and bifurcating arterial compartment. However, although arterial pressure was the latest acquired hemodynamic variable, the general teleonomy of the evolution of species is the differentiation of individual organ function, supported by specific fueling allowing and favoring partial metabolic autonomy. This was achieved via the establishment of an active contractile tone in resistance arteries, which permitted the regulation of blood supply to specific organ activities via its localized function-dependent inhibition (active vasodilation). The global resistance to viscous blood flow is the peripheral increase in frictional forces caused by the tonic change in arterial and arteriolar radius, which backscatter as systemic arterial blood pressure. Consequently, the arterial pressure gradient from circulating blood to the adventitial interstitium generates the unidirectional outward radial advective conductance of plasma solutes across the wall of conductance arteries. This hemodynamic evolution was accompanied by important changes in arterial wall structure, supported by smooth muscle cell functional plasticity, including contractility, matrix synthesis and proliferation, endocytosis and phagocytosis, etc. These adaptive phenotypic shifts are due to epigenetic regulation, mainly related to mechanotransduction. These paradigms actively participate in cardio-arterial pathologies such as atheroma, valve disease, heart failure, aneurysms, hypertension, and physiological aging.
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15
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Claros-Guzmán A, Rodríguez MG, Heredia-Rivera B, González-Segovia R. Three-dimensional analysis of the heart function and effect cholinergic agonists in the cockroach Gromphadorhina portentosa. J Comp Physiol A Neuroethol Sens Neural Behav Physiol 2020; 206:857-870. [PMID: 32955634 PMCID: PMC7603477 DOI: 10.1007/s00359-020-01443-5] [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: 05/29/2019] [Revised: 08/16/2020] [Accepted: 08/19/2020] [Indexed: 11/30/2022]
Abstract
Many relevant aspects of mammal’s cardiac physiology have been mainly investigated in insect models such as Drosophila melanogaster and Periplaneta americana. Cardiac function has been poorly studied in the cockroach Gromphadorhina portentosa, which has some advantages for experimental purposes such as an easier culture, bigger organs and a robust physiology. On the other hand, the study of cardiac physiology in insects has been largely improved since the arrival of digital imaging technologies for recording purposes. In the present work, we introduce a methodology of video recording coupled to an isotonic transducer for a three-dimensional analysis of the heart and intracardiac valves of G. portentosa. We used this methodology for assessing the physiological responses of the cockroach heart upon the application of different cholinergic neurotransmitters (acetylcholine, nicotine and muscarine). We recorded in detail the relationship between intracardiac valves movement, hemolymph flow, diastole and systole. Acetylcholine and nicotine induced a biphasic effect on the cardiac frequency. Acetylcholine increased the diastolic opening. Nicotine at high concentration caused paralysis. Muscarine induced no major effects. These findings suggest a combined action of cholinergic agonists for a finely tuned the cardiac frequency, intracardiac valves function and cardiac cycle.
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Affiliation(s)
- Alfonso Claros-Guzmán
- Department of Pharmacology and Physiology, Autonomous University of Aguascalientes, 940 Av. Universidad, Aguascalientes, 20130, México
| | - Martín G Rodríguez
- Department of Pharmacology and Physiology, Autonomous University of Aguascalientes, 940 Av. Universidad, Aguascalientes, 20130, México.
| | - Birmania Heredia-Rivera
- Department of Pharmacology and Physiology, Autonomous University of Aguascalientes, 940 Av. Universidad, Aguascalientes, 20130, México
| | - Rodolfo González-Segovia
- Department of Microbiology, Autonomous University of Aguascalientes, 940 Av. Universidad, Aguascalientes, 20130, México
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16
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Taverne YJHJ, Sadeghi A, Bartelds B, Bogers AJJC, Merkus D. Right ventricular phenotype, function, and failure: a journey from evolution to clinics. Heart Fail Rev 2020; 26:1447-1466. [PMID: 32556672 PMCID: PMC8510935 DOI: 10.1007/s10741-020-09982-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The right ventricle has long been perceived as the "low pressure bystander" of the left ventricle. Although the structure consists of, at first glance, the same cardiomyocytes as the left ventricle, it is in fact derived from a different set of precursor cells and has a complex three-dimensional anatomy and a very distinct contraction pattern. Mechanisms of right ventricular failure, its detection and follow-up, and more specific different responses to pressure versus volume overload are still incompletely understood. In order to fully comprehend right ventricular form and function, evolutionary biological entities that have led to the specifics of right ventricular physiology and morphology need to be addressed. Processes responsible for cardiac formation are based on very ancient cardiac lineages and within the first few weeks of fetal life, the human heart seems to repeat cardiac evolution. Furthermore, it appears that most cardiogenic signal pathways (if not all) act in combination with tissue-specific transcriptional cofactors to exert inductive responses reflecting an important expansion of ancestral regulatory genes throughout evolution and eventually cardiac complexity. Such molecular entities result in specific biomechanics of the RV that differs from that of the left ventricle. It is clear that sole descriptions of right ventricular contraction patterns (and LV contraction patterns for that matter) are futile and need to be addressed into a bigger multilayer three-dimensional picture. Therefore, we aim to present a complete picture from evolution, formation, and clinical presentation of right ventricular (mal)adaptation and failure on a molecular, cellular, biomechanical, and (patho)anatomical basis.
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Affiliation(s)
- Yannick J H J Taverne
- Department of Cardiothoracic Surgery, Erasmus University Medical Center, Room Rg627, Dr. Molewaterplein 40, 3015, GD, Rotterdam, The Netherlands. .,Division of Experimental Cardiology, Department of Cardiology, Erasmus University Medical Center, Rotterdam, The Netherlands. .,Unit for Cardiac Morphology and Translational Electrophysiology, Erasmus University Medical Center, Rotterdam, The Netherlands.
| | - Amir Sadeghi
- Department of Cardiothoracic Surgery, Erasmus University Medical Center, Room Rg627, Dr. Molewaterplein 40, 3015, GD, Rotterdam, The Netherlands
| | - Beatrijs Bartelds
- Division of Pediatrics, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Ad J J C Bogers
- Department of Cardiothoracic Surgery, Erasmus University Medical Center, Room Rg627, Dr. Molewaterplein 40, 3015, GD, Rotterdam, The Netherlands
| | - Daphne Merkus
- Division of Experimental Cardiology, Department of Cardiology, Erasmus University Medical Center, Rotterdam, The Netherlands
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17
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Sherrid MV, Männer J, Swistel DG, Olivotto I, Halpern DG. On the Cardiac Loop and Its Failing: Left Ventricular Outflow Tract Obstruction. J Am Heart Assoc 2020; 9:e014857. [PMID: 31986992 PMCID: PMC7033877 DOI: 10.1161/jaha.119.014857] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 12/20/2019] [Indexed: 01/14/2023]
Affiliation(s)
- Mark V. Sherrid
- Hypertrophic CardiomyopathyNew York University School of MedicineNew YorkNY
| | - Jörg Männer
- Department of Anatomy and EmbryologyGeorg‐August University of GöttingenGöttingenGermany
| | - Daniel G. Swistel
- Department of Cardiothoracic SurgeryNew York University School of MedicineNew YorkNY
| | | | - Dan G. Halpern
- Adult Congenital Heart Disease ProgramNew York University School of MedicineNew YorkNY
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18
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Harrison MR, Feng X, Mo G, Aguayo A, Villafuerte J, Yoshida T, Pearson CA, Schulte-Merker S, Lien CL. Late developing cardiac lymphatic vasculature supports adult zebrafish heart function and regeneration. eLife 2019; 8:42762. [PMID: 31702553 PMCID: PMC6881116 DOI: 10.7554/elife.42762] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 09/24/2019] [Indexed: 01/08/2023] Open
Abstract
The cardiac lymphatic vascular system and its potentially critical functions in heart patients have been largely underappreciated, in part due to a lack of experimentally accessible systems. We here demonstrate that cardiac lymphatic vessels develop in young adult zebrafish, using coronary arteries to guide their expansion down the ventricle. Mechanistically, we show that in cxcr4a mutants with defective coronary artery development, cardiac lymphatic vessels fail to expand onto the ventricle. In regenerating adult zebrafish hearts the lymphatic vasculature undergoes extensive lymphangiogenesis in response to a cryoinjury. A significant defect in reducing the scar size after cryoinjury is observed in zebrafish with impaired Vegfc/Vegfr3 signaling that fail to develop intact cardiac lymphatic vessels. These results suggest that the cardiac lymphatic system can influence the regenerative potential of the myocardium.
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Affiliation(s)
- Michael Rm Harrison
- The Saban Research Institute of Children's Hospital Los Angeles, Los Angeles, United States
| | - Xidi Feng
- The Saban Research Institute of Children's Hospital Los Angeles, Los Angeles, United States
| | - Guqin Mo
- The Saban Research Institute of Children's Hospital Los Angeles, Los Angeles, United States
| | - Antonio Aguayo
- The Saban Research Institute of Children's Hospital Los Angeles, Los Angeles, United States
| | - Jessi Villafuerte
- The Saban Research Institute of Children's Hospital Los Angeles, Los Angeles, United States.,Department of Biology, California State University of San Bernardino, San Bernardino, United States
| | - Tyler Yoshida
- The Saban Research Institute of Children's Hospital Los Angeles, Los Angeles, United States.,Department of Biological Sciences, Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, United States
| | - Caroline A Pearson
- Department of Neurobiology, Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, United States
| | - Stefan Schulte-Merker
- Institute of Cardiovascular Organogenesis and Regeneration, Faculty of Medicine, University of Münster, Münster, Germany.,CiM Cluster of Excellence (EXC1003 CiM), University of Münster, Münster, Germany
| | - Ching-Ling Lien
- The Saban Research Institute of Children's Hospital Los Angeles, Los Angeles, United States.,Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, United States.,Department of Biochemistry and Molecular Medicine, Keck School of Medicine, University of Southern California, Los Angeles, United States
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19
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Grüneboom A, Hawwari I, Weidner D, Culemann S, Müller S, Henneberg S, Brenzel A, Merz S, Bornemann L, Zec K, Wuelling M, Kling L, Hasenberg M, Voortmann S, Lang S, Baum W, Ohs A, Kraff O, Quick HH, Jäger M, Landgraeber S, Dudda M, Danuser R, Stein JV, Rohde M, Gelse K, Garbe AI, Adamczyk A, Westendorf AM, Hoffmann D, Christiansen S, Engel DR, Vortkamp A, Krönke G, Herrmann M, Kamradt T, Schett G, Hasenberg A, Gunzer M. A network of trans-cortical capillaries as mainstay for blood circulation in long bones. Nat Metab 2019; 1:236-250. [PMID: 31620676 PMCID: PMC6795552 DOI: 10.1038/s42255-018-0016-5] [Citation(s) in RCA: 183] [Impact Index Per Article: 36.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Closed circulatory systems (CCS) underlie the function of vertebrate organs, but in long bones their structure is unclear, although they constitute the exit route for bone marrow (BM) leukocytes. To understand neutrophil emigration from BM, we studied the vascular system of murine long bones. Here we show that hundreds of capillaries originate in BM, cross murine cortical bone perpendicularly along the shaft and connect to the periosteal circulation. Structures similar to these trans-cortical-vessels (TCVs) also exist in human limb bones. TCVs express arterial or venous markers and transport neutrophils. Furthermore, over 80% arterial and 59% venous blood passes through TCVs. Genetic and drug-mediated modulation of osteoclast count and activity leads to substantial changes in TCV numbers. In a murine model of chronic arthritic bone inflammation, new TCVs develop within weeks. Our data indicate that TCVs are a central component of the CCS in long bones and may represent an important route for immune cell export from the BM.
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Affiliation(s)
- Anika Grüneboom
- Institute for Experimental Immunology and Imaging, University Hospital, University Duisburg-Essen, Essen, Germany
- Department of Internal Medicine 3-Rheumatology and Immunology, Friedrich Alexander University Erlangen-Nuremberg and Universitaetsklinikum Erlangen, Erlangen, Germany
| | - Ibrahim Hawwari
- Institute for Experimental Immunology and Imaging, University Hospital, University Duisburg-Essen, Essen, Germany
| | - Daniela Weidner
- Department of Internal Medicine 3-Rheumatology and Immunology, Friedrich Alexander University Erlangen-Nuremberg and Universitaetsklinikum Erlangen, Erlangen, Germany
| | - Stephan Culemann
- Department of Internal Medicine 3-Rheumatology and Immunology, Friedrich Alexander University Erlangen-Nuremberg and Universitaetsklinikum Erlangen, Erlangen, Germany
| | - Sylvia Müller
- Institute of Immunology, Universitätsklinikum Jena, Jena, Germany
| | - Sophie Henneberg
- Institute for Experimental Immunology and Imaging, University Hospital, University Duisburg-Essen, Essen, Germany
| | - Alexandra Brenzel
- Institute for Experimental Immunology and Imaging, University Hospital, University Duisburg-Essen, Essen, Germany
| | - Simon Merz
- Institute for Experimental Immunology and Imaging, University Hospital, University Duisburg-Essen, Essen, Germany
| | - Lea Bornemann
- Institute for Experimental Immunology and Imaging, University Hospital, University Duisburg-Essen, Essen, Germany
| | - Kristina Zec
- Institute for Experimental Immunology and Imaging, University Hospital, University Duisburg-Essen, Essen, Germany
| | - Manuela Wuelling
- Department of Developmental Biology, Centre of Medical Biotechnology, Faculty of Biology, University Duisburg-Essen, Essen, Germany
| | - Lasse Kling
- Max Planck Institute for the Science of Light, Christiansen Research Group, Erlangen, Germany
- Helmholtz-Zentrum Berlin, Institute for Nanoarchitectures for Energy Conversion, Berlin, Germany
| | - Mike Hasenberg
- Institute for Experimental Immunology and Imaging, University Hospital, University Duisburg-Essen, Essen, Germany
| | - Sylvia Voortmann
- Institute for Experimental Immunology and Imaging, University Hospital, University Duisburg-Essen, Essen, Germany
| | - Stefanie Lang
- Department of Internal Medicine 3-Rheumatology and Immunology, Friedrich Alexander University Erlangen-Nuremberg and Universitaetsklinikum Erlangen, Erlangen, Germany
| | - Wolfgang Baum
- Department of Internal Medicine 3-Rheumatology and Immunology, Friedrich Alexander University Erlangen-Nuremberg and Universitaetsklinikum Erlangen, Erlangen, Germany
| | - Alexandra Ohs
- Department of Internal Medicine 3-Rheumatology and Immunology, Friedrich Alexander University Erlangen-Nuremberg and Universitaetsklinikum Erlangen, Erlangen, Germany
| | - Oliver Kraff
- Erwin L. Hahn Institute for Magnetic Resonance Imaging, University Duisburg-Essen, Essen, Germany
| | - Harald H Quick
- Erwin L. Hahn Institute for Magnetic Resonance Imaging, University Duisburg-Essen, Essen, Germany
- High Field and Hybrid MR Imaging, University Hospital, University Duisburg-Essen, Essen, Germany
| | - Marcus Jäger
- Department of Orthopaedics and Trauma Surgery, University Hospital, University Duisburg-Essen, Essen, Germany
| | - Stefan Landgraeber
- Department of Orthopaedics and Trauma Surgery, University Hospital, University Duisburg-Essen, Essen, Germany
| | - Marcel Dudda
- Department of Orthopaedics and Trauma Surgery, University Hospital, University Duisburg-Essen, Essen, Germany
| | - Renzo Danuser
- Theodor Kocher Institute, University of Bern, Bern, Switzerland
| | - Jens V Stein
- Theodor Kocher Institute, University of Bern, Bern, Switzerland
| | - Manfred Rohde
- Central Facility for Microscopy, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Kolja Gelse
- Department of Trauma Surgery, Friedrich Alexander University Erlangen-Nuremberg andUniversitaetsklinikum Erlangen, Erlangen, Germany
| | - Annette I Garbe
- Osteoimmunology, DFG-Center for Regenerative Therapies Dresden, Center for Molecular and Cellular Bioengineering , Technische Universität Dresden, Cluster of Excellence, Dresden, Germany
| | - Alexandra Adamczyk
- Institute of Medical Microbiology, University Hospital, University Duisburg-Essen, Essen, Germany
| | - Astrid M Westendorf
- Institute of Medical Microbiology, University Hospital, University Duisburg-Essen, Essen, Germany
| | - Daniel Hoffmann
- Bioinformatics and Computational Biophysics, Faculty of Biology, University Duisburg-Essen, Essen, Germany
| | - Silke Christiansen
- Max Planck Institute for the Science of Light, Christiansen Research Group, Erlangen, Germany
- Helmholtz-Zentrum Berlin, Institute for Nanoarchitectures for Energy Conversion, Berlin, Germany
| | - Daniel Robert Engel
- Institute for Experimental Immunology and Imaging, University Hospital, University Duisburg-Essen, Essen, Germany
| | - Andrea Vortkamp
- Department of Developmental Biology, Centre of Medical Biotechnology, Faculty of Biology, University Duisburg-Essen, Essen, Germany
| | - Gerhard Krönke
- Department of Internal Medicine 3-Rheumatology and Immunology, Friedrich Alexander University Erlangen-Nuremberg and Universitaetsklinikum Erlangen, Erlangen, Germany
| | - Martin Herrmann
- Department of Internal Medicine 3-Rheumatology and Immunology, Friedrich Alexander University Erlangen-Nuremberg and Universitaetsklinikum Erlangen, Erlangen, Germany
| | - Thomas Kamradt
- Institute of Immunology, Universitätsklinikum Jena, Jena, Germany
| | - Georg Schett
- Department of Internal Medicine 3-Rheumatology and Immunology, Friedrich Alexander University Erlangen-Nuremberg and Universitaetsklinikum Erlangen, Erlangen, Germany
| | - Anja Hasenberg
- Institute for Experimental Immunology and Imaging, University Hospital, University Duisburg-Essen, Essen, Germany.
| | - Matthias Gunzer
- Institute for Experimental Immunology and Imaging, University Hospital, University Duisburg-Essen, Essen, Germany.
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20
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Kodirov SA, Psyrakis D, Brachmann J, Zhuravlev VL. Limulus and heart rhythm. JOURNAL OF EXPERIMENTAL ZOOLOGY PART 2018; 331:61-79. [PMID: 30251467 DOI: 10.1002/jez.2235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 08/24/2018] [Accepted: 08/28/2018] [Indexed: 01/08/2023]
Abstract
Great interest in the comparative physiology of hearts and their functions in Animalia has emerged with classic papers on Limulus polyphemus and mollusks. The recurrent cardiac activity-heart rate-is the most important physiological parameter and when present the kardia (Greek) is vital to the development of entire organs of the organisms in the animal kingdom. Extensive studies devoted to the regulation of cardiac rhythm in invertebrates have revealed that the basics of heart physiology are comparable to mammals. The hearts of invertebrates also beat spontaneously and are supplied with regulatory nerves: either excitatory or inhibitory or both. The distinct nerves and the source of excitation/inhibition at the level of single neurons are described for many invertebrate genera. The vertebrates and a majority of invertebrates have myogenic hearts, whereas the horseshoe crab L. polyphemus and a few other animals have a neurogenic cardiac rhythm. Nevertheless, the myogenic nature of heartbeat is precursor, because the contraction of native and stem-cell-derived cardiomyocytes does occur in the absence of any neural elements. Even in L. polyphemus, the heart rhythm is myogenic at embryonic stages.
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Affiliation(s)
- Sodikdjon A Kodirov
- Department of General Physiology, Saint Petersburg University, Saint Petersburg, Russia.,Department of Neurobiology, Neuroscience Institute, Morehouse School of Medicine, Atlanta, Georgia.,Department of Molecular Biology and Genetics, Almazov Federal Heart, Blood and Endocrinology Centre, Saint Petersburg, Russia.,Laboratory of Emotions' Neurobiology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland.,Department of Cardiology, University Hospital, Heidelberg, Germany
| | - Dimitrios Psyrakis
- Department of Cardiology and Angiology I, Heart Center Freiburg University, Freiburg, Germany
| | - Johannes Brachmann
- Department of Cardiology, Klinikum Coburg, Teaching Hospital of the University of Würzburg, Coburg, Germany.,Department of Cardiology, University Hospital, Heidelberg, Germany
| | - Vladimir L Zhuravlev
- Department of General Physiology, Saint Petersburg University, Saint Petersburg, Russia.,Department of Cardiology, University Hospital, Heidelberg, Germany
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21
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Conduction in the Heart Wall: Helicoidal Fibers Minimize Diffusion Bias. Sci Rep 2018; 8:7165. [PMID: 29739992 PMCID: PMC5940931 DOI: 10.1038/s41598-018-25334-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 04/16/2018] [Indexed: 11/23/2022] Open
Abstract
The mammalian heart must function as an efficient pump while simultaneously conducting electrical signals to drive the contraction process. In the ventricles, electrical activation begins at the insertion points of the Purkinje network in the endocardium. How does the diffusion component of the subsequent excitation wave propagate from the endocardium in a healthy heart wall without creating directional biases? We show that this is a consequence of the particular geometric organization of myocytes in the heart wall. Using a generalized helicoid to model fiber orientation, we treat the myocardium as a curved space via Riemannian geometry, and then use stochastic calculus to model local signal diffusion. Our analysis shows that the helicoidal arrangement of myocytes minimizes the directional biases that could lead to aberrant propagation, thereby explaining how electrophysiological principles are consistent with local measurements of cardiac fiber geometry. We discuss our results in the context of the need to balance electrical and mechanical requirements for heart function.
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22
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Pokorný M, Mrázová I, Malý J, Pirk J, Netuka I, Vaňourková Z, Doleželová Š, Červenková L, Maxová H, Melenovský V, Šochman J, Sadowski J, Červenka L. Effects of increased myocardial tissue concentration of myristic, palmitic and palmitoleic acids on the course of cardiac atrophy of the failing heart unloaded by heterotopic transplantation. Physiol Res 2018; 67:13-30. [PMID: 29137478 DOI: 10.33549/physiolres.933637] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The present experiments were performed to evaluate if increased heart tissue concentration of fatty acids, specifically myristic, palmitic and palmitoleic acids that are believed to promote physiological heart growth, can attenuate the progression of unloading-induced cardiac atrophy in rats with healthy and failing hearts. Heterotopic abdominal heart transplantation (HT(x)) was used as a model for heart unloading. Cardiac atrophy was assessed from the ratio of the native- to-transplanted heart weight (HW). The degree of cardiac atrophy after HT(x) was determined on days 7, 14, 21 and 28 after HT(x) in recipients of either healthy or failing hearts. HT(x) of healthy hearts resulted in 23+/-3, 46+/-3, 48+/-4 and 46+/-4 % HW loss at the four time-points. HT(x) of the failing heart resulted in even greater HW losses, of 46+/-4, 58+/-3, 66+/-2 and 68+/-4 %, respectively (P<0.05). Activation of "fetal gene cardiac program" (e.g. beta myosin heavy chain gene expression) and "genes reflecting cardiac remodeling" (e.g. atrial natriuretic peptide gene expression) after HT(x) was greater in failing than in healthy hearts (P<0.05 each time). Exposure to isocaloric high sugar diet caused significant increases in fatty acid concentrations in healthy and in failing hearts. However, these increases were not associated with any change in the course of cardiac atrophy, similarly in healthy and post-HT(x) failing hearts. We conclude that increasing heart tissue concentrations of the fatty acids allegedly involved in heart growth does not attenuate the unloading-induced cardiac atrophy.
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Affiliation(s)
- M Pokorný
- Institute for Clinical and Experimental Medicine, Prague, Czech Republic.
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23
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Stephenson A, Adams JW, Vaccarezza M. The vertebrate heart: an evolutionary perspective. J Anat 2017; 231:787-797. [PMID: 28905992 PMCID: PMC5696137 DOI: 10.1111/joa.12687] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/07/2017] [Indexed: 12/20/2022] Open
Abstract
Convergence is the tendency of independent species to evolve similarly when subjected to the same environmental conditions. The primitive blueprint for the circulatory system emerged around 700-600 Mya and exhibits diverse physiological adaptations across the radiations of vertebrates (Subphylum Vertebrata, Phylum Chordata). It has evolved from the early chordate circulatory system with a single layered tube in the tunicate (Subphylum Urchordata) or an amphioxus (Subphylum Cephalochordata), to a vertebrate circulatory system with a two-chambered heart made up of one atrium and one ventricle in gnathostome fish (Infraphylum Gnathostomata), to a system with a three-chambered heart made up of two atria which maybe partially divided or completely separated in amphibian tetrapods (Class Amphibia). Subsequent tetrapods, including crocodiles and alligators (Order Crocodylia, Subclass Crocodylomorpha, Class Reptilia), birds (Subclass Aves, Class Reptilia) and mammals (Class Mammalia) evolved a four-chambered heart. The structure and function of the circulatory system of each individual holds a vital role which benefits each species specifically. The special characteristics of the four-chamber mammalian heart are highlighted by the peculiar structure of the myocardial muscle.
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Affiliation(s)
- Andrea Stephenson
- School of Biomedical SciencesFaculty of Health SciencesCurtin UniversityBentleyPerthWAAustralia
| | - Justin W. Adams
- Department of Anatomy and Developmental BiologyFaculty of Medicine, Nursing and Health SciencesSchool of Biomedical SciencesCentre for Human Anatomy EducationMonash UniversityClaytonMelbourneVICAustralia
| | - Mauro Vaccarezza
- School of Biomedical SciencesFaculty of Health SciencesCurtin UniversityBentleyPerthWAAustralia
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24
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Vivien CJ, Hudson JE, Porrello ER. Evolution, comparative biology and ontogeny of vertebrate heart regeneration. NPJ Regen Med 2016; 1:16012. [PMID: 29302337 PMCID: PMC5744704 DOI: 10.1038/npjregenmed.2016.12] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 06/01/2016] [Accepted: 06/15/2016] [Indexed: 12/19/2022] Open
Abstract
There are 64,000 living species of vertebrates on our planet and all of them have a heart. Comparative analyses devoted to understanding the regenerative potential of the myocardium have been performed in a dozen vertebrate species with the aim of developing regenerative therapies for human heart disease. Based on this relatively small selection of animal models, important insights into the evolutionary conservation of regenerative mechanisms have been gained. In this review, we survey cardiac regeneration studies in diverse species to provide an evolutionary context for the lack of regenerative capacity in the adult mammalian heart. Our analyses highlight the importance of cardiac adaptations that have occurred over hundreds of millions of years during the transition from aquatic to terrestrial life, as well as during the transition from the womb to an oxygen-rich environment at birth. We also discuss the evolution and ontogeny of cardiac morphological, physiological and metabolic adaptations in the context of heart regeneration. Taken together, our findings suggest that cardiac regenerative potential correlates with a low-metabolic state, the inability to regulate body temperature, low heart pressure, hypoxia, immature cardiomyocyte structure and an immature immune system. A more complete understanding of the evolutionary context and developmental mechanisms governing cardiac regenerative capacity would provide stronger scientific foundations for the translation of cardiac regeneration therapies into the clinic.
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Affiliation(s)
- Celine J Vivien
- School of Biomedical Sciences, The University of Queensland, Brisbane, QLD, Australia
- Centre for Cardiac and Vascular Biology, The University of Queensland, Brisbane, QLD, Australia
| | - James E Hudson
- School of Biomedical Sciences, The University of Queensland, Brisbane, QLD, Australia
- Centre for Cardiac and Vascular Biology, The University of Queensland, Brisbane, QLD, Australia
| | - Enzo R Porrello
- School of Biomedical Sciences, The University of Queensland, Brisbane, QLD, Australia
- Centre for Cardiac and Vascular Biology, The University of Queensland, Brisbane, QLD, Australia
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