scholarly journals Zebrafish cardiac development requires a conserved secondary heart field

Development ◽  
2011 ◽  
Vol 138 (11) ◽  
pp. 2389-2398 ◽  
Author(s):  
D. Hami ◽  
A. C. Grimes ◽  
H.-J. Tsai ◽  
M. L. Kirby
Keyword(s):  
Cardiac Development ◽  
Heart Field ◽  
Secondary Heart Field

scholarly journals The role of secondary heart field in cardiac development

2009 ◽  
Vol 336 (2) ◽  
pp. 137-144 ◽  
Author(s):  
Laura A. Dyer ◽  
Margaret L. Kirby
Keyword(s):  
Cardiac Development ◽  
Heart Field ◽  
Secondary Heart Field

scholarly journals Strong as a Hippo’s Heart: Biomechanical Hippo Signaling During Zebrafish Cardiac Development

2021 ◽  
Vol 9 ◽  
Author(s):  
Dorothee Bornhorst ◽  
Salim Abdelilah-Seyfried
Keyword(s):  
Heart Development ◽  
Cardiac Development ◽  
Hippo Pathway ◽  
Cardiac Progenitor Cells ◽  
Hippo Signaling ◽  
Cardiac Physiology ◽  
Heart Field ◽  
Dependent Growth ◽  
Secondary Heart Field ◽  
Zebrafish Heart

The heart is comprised of multiple tissues that contribute to its physiological functions. During development, the growth of myocardium and endocardium is coupled and morphogenetic processes within these separate tissue layers are integrated. Here, we discuss the roles of mechanosensitive Hippo signaling in growth and morphogenesis of the zebrafish heart. Hippo signaling is involved in defining numbers of cardiac progenitor cells derived from the secondary heart field, in restricting the growth of the epicardium, and in guiding trabeculation and outflow tract formation. Recent work also shows that myocardial chamber dimensions serve as a blueprint for Hippo signaling-dependent growth of the endocardium. Evidently, Hippo pathway components act at the crossroads of various signaling pathways involved in embryonic zebrafish heart development. Elucidating how biomechanical Hippo signaling guides heart morphogenesis has direct implications for our understanding of cardiac physiology and pathophysiology.

scholarly journals Outflow Tract Formation—Embryonic Origins of Conotruncal Congenital Heart Disease

2021 ◽  
Vol 8 (4) ◽  
pp. 42
Author(s):  
Sonia Stefanovic ◽  
Heather C. Etchevers ◽  
Stéphane Zaffran
Keyword(s):  
Congenital Heart ◽  
Cardiac Development ◽  
Heart Defects ◽  
Dynamic Structure ◽  
Cell Types ◽  
Outflow Tract ◽  
Heart Tube ◽  
Heart Field ◽  
Multiple Cell ◽  
The Many

Anomalies in the cardiac outflow tract (OFT) are among the most frequent congenital heart defects (CHDs). During embryogenesis, the cardiac OFT is a dynamic structure at the arterial pole of the heart. Heart tube elongation occurs by addition of cells from pharyngeal, splanchnic mesoderm to both ends. These progenitor cells, termed the second heart field (SHF), were first identified twenty years ago as essential to the growth of the forming heart tube and major contributors to the OFT. Perturbation of SHF development results in common forms of CHDs, including anomalies of the great arteries. OFT development also depends on paracrine interactions between multiple cell types, including myocardial, endocardial and neural crest lineages. In this publication, dedicated to Professor Andriana Gittenberger-De Groot and her contributions to the field of cardiac development and CHDs, we review some of her pioneering studies of OFT development with particular interest in the diverse origins of the many cell types that contribute to the OFT. We also discuss the clinical implications of selected key findings for our understanding of the etiology of CHDs and particularly OFT malformations.

scholarly journals Lamb1a regulates atrial growth by limiting excessive, contractility-dependent second heart field addition during zebrafish heart development

2021 ◽  
Author(s):  
Christopher J. Derrick ◽  
Eric J. G. Pollitt ◽  
Ashley Sanchez Sevilla Uruchurtu ◽  
Farah Hussein ◽  
Emily S. Noёl
Keyword(s):  
Heart Development ◽  
Cardiac Development ◽  
Basement Membranes ◽  
Atrioventricular Canal ◽  
Cardiac Morphogenesis ◽  
Heart Morphogenesis ◽  
Second Heart Field ◽  
Heart Field ◽  
Heart Size ◽  
Zebrafish Heart

AbstractDuring early vertebrate heart development, the heart transitions from a linear tube to a complex asymmetric structure. This process includes looping of the tube and ballooning of the emerging cardiac chambers, which occur simultaneously with growth of the heart. A key driver of cardiac growth is deployment of cells from the Second Heart Field (SHF) into both poles of the heart, with cardiac morphogenesis and growth intimately linked in heart development. Laminin is a core component of extracellular matrix (ECM) basement membranes, and although mutations in specific laminin subunits are linked with a variety of cardiac abnormalities, including congenital heart disease and dilated cardiomyopathy, no role for laminin has been identified in early vertebrate heart morphogenesis. We identified dynamic, tissue-specific expression of laminin subunit genes in the developing zebrafish heart, supporting a role for laminins in heart morphogenesis.lamb1amutants exhibit cardiomegaly from 2dpf onwards, with subsequent progressive defects in cardiac morphogenesis characterised by a failure of the chambers to compact around the developing atrioventricular canal. We show that loss oflamb1aresults in excess addition of SHF cells to the atrium, revealing that Lamb1a functions to limit heart size during cardiac development by restricting SHF addition to the venous pole.lamb1amutants exhibit hallmarks of altered haemodynamics, and specifically blocking cardiac contractility inlamb1amutants rescues heart size and atrial SHF addition. Furthermore, we identify that FGF and RA signalling, two conserved pathways promoting SHF addition, are regulated by heart contractility and are dysregulated inlamb1amutants, suggesting that laminin mediates interactions between SHF deployment, heart biomechanics, and biochemical signalling during heart development. Together, this describes the first requirement for laminins in early vertebrate heart morphogenesis, reinforcing the importance of specialised ECM composition in cardiac development.

scholarly journals Tbx1 is regulated by forkhead proteins in the secondary heart field

2006 ◽  
Vol 235 (3) ◽  
pp. 701-710 ◽  
Author(s):  
Jun Maeda ◽  
Hiroyuki Yamagishi ◽  
John McAnally ◽  
Chihiro Yamagishi ◽  
Deepak Srivastava
Keyword(s):  
Heart Field ◽  
Secondary Heart Field

scholarly journals Myocardial volume and organization are changed by failure of addition of secondary heart field myocardium to the cardiac outflow tract

2003 ◽  
Vol 228 (2) ◽  
pp. 152-160 ◽  
Author(s):  
T. Mesud Yelbuz ◽  
Karen L. Waldo ◽  
Xiaowei Zhang ◽  
Marzena Zdanowicz ◽  
Jeremy Parker ◽  
...  
Keyword(s):  
Outflow Tract ◽  
Heart Field ◽  
Secondary Heart Field ◽  
Cardiac Outflow
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