Msx2is an immediate downstream effector ofPax3in the development of the murine cardiac neural crest

Development ◽  
2002 ◽  
Vol 129 (2) ◽  
pp. 527-538 ◽  
Author(s):  
Stanford J. Kwang ◽  
Sean M. Brugger ◽  
Arthur Lazik ◽  
Amy E. Merrill ◽  
Lan-Ying Wu ◽  
...  
Keyword(s):  
Neural Crest ◽  
Cardiac Development ◽  
Homeobox Gene ◽  
Bmp Signaling ◽  
Gene Migration ◽  
Cardiac Neural Crest ◽  
Molecular Approaches ◽  
Pax3 Gene ◽  
Downstream Effector ◽  
Neural Crest Development

The neural crest plays a crucial part in cardiac development. Cells of the cardiac subpopulation of cranial neural crest migrate from the hindbrain into the outflow tract of the heart where they contribute to the septum that divides the pulmonary and aortic channels. In Splotch mutant mice, which lack a functional Pax3 gene, migration of cardiac neural crest is deficient and aorticopulmonary septation does not occur. Downstream genes through which Pax3 regulates cardiac neural crest development are unknown. Here, using a combination of genetic and molecular approaches, we show that the deficiency of cardiac neural crest development in the Splotch mutant is caused by upregulation of Msx2, a homeobox gene with a well-documented role as a regulator of BMP signaling. We provide evidence, moreover, that Pax3 represses Msx2 expression via a direct effect on a conserved Pax3 binding site in the Msx2 promoter. These results establish Msx2 as an effector of Pax3 in cardiac neural crest development.

scholarly journals Regulation of melanocyte development by ligand-dependent BMP signaling underlies oncogenic BMP signaling in melanoma

2019 ◽  
Author(s):  
Alec K. Gramann ◽  
Arvind M. Venkatesan ◽  
Melissa Guerin ◽  
Craig J. Ceol
Keyword(s):  
Neural Crest ◽  
Pigment Cell ◽  
Terminal Differentiation ◽  
Melanoma Cells ◽  
Cell Development ◽  
Bmp Signaling ◽  
Pigment Cells ◽  
Cell Type ◽  
Neural Crest Development ◽  
Direct Regulation

AbstractPreventing terminal differentiation is important in the development and progression of many cancers including melanoma. Recent identification of the BMP ligand GDF6 as a novel melanoma oncogene showed GDF6-activated BMP signaling suppresses differentiation of melanoma cells. Previous studies have identified roles for GDF6 orthologs during early embryonic and neural crest development, but have not identified direct regulation of melanocyte development by GDF6. Here, we investigate the BMP ligand gdf6a, a zebrafish ortholog of human GDF6, during the development of melanocytes from the neural crest. We establish that the loss of gdf6a or inhibition of BMP signaling during neural crest development disrupts normal pigment cell development, leading to an increase in the number of melanocytes and a corresponding decrease in iridophores, another neural crest-derived pigment cell type in zebrafish. This shift occurs as pigment cells arise from the neural crest and depends on mitfa, an ortholog of MITF, a key regulator of melanocyte development that is also targeted by oncogenic BMP signaling. Together, these results indicate that the oncogenic role ligand-dependent BMP signaling plays in suppressing differentiation in melanoma is a reiteration of its physiological roles during melanocyte development.

scholarly journals Metalloprotease-Dependent Attenuation of BMP Signaling Restricts Cardiac Neural Crest Cell Fate

Cell Reports ◽  
2019 ◽  
Vol 29 (3) ◽  
pp. 603-616.e5
Author(s):  
Hiroyuki N. Arai ◽  
Fuminori Sato ◽  
Takuya Yamamoto ◽  
Knut Woltjen ◽  
Hiroshi Kiyonari ◽  
...  
Keyword(s):  
Neural Crest ◽  
Cell Fate ◽  
Neural Crest Cell ◽  
Bmp Signaling ◽  
Cardiac Neural Crest ◽  
Crest Cell

scholarly journals Functional interaction between Foxd3 and Pax3 in cardiac neural crest development

genesis ◽  
2010 ◽  
Vol 49 (1) ◽  
pp. 10-23 ◽  
Author(s):  
Brian L. Nelms ◽  
Elise R. Pfaltzgraff ◽  
Patricia A. Labosky
Keyword(s):  
Neural Crest ◽  
Functional Interaction ◽  
Cardiac Neural Crest ◽  
Neural Crest Development

The role of the neural crest in cardiac development

2018 ◽  
Author(s):  
Laura A. Dyer ◽  
Margaret L. Kirby
Keyword(s):  
Neural Crest ◽  
Neural Tube ◽  
Heart Development ◽  
Cardiac Development ◽  
Signalling Pathways ◽  
Pharyngeal Arches ◽  
Cardiac Neural Crest ◽  
Final Destination ◽  
Dorsal Neural Tube

The cardiac neural crest (CNC) plays pivotal roles in numerous steps of cardiac development. Every aspect of the CNC cell’s lifespan is highly orchestrated, from its induction in the dorsal neural tube to its migration to its differentiation at its final destination. During migration, CNC cells are affected by their environment and simultaneously modulate the extra-cellular milieu through which they migrate. In the pharyngeal arches, CNC cells repattern the originally symmetrical arch arteries, producing the great arteries. Because the cardiac neural crest is essential for many aspects of heart development, it is unsurprising that human CNC-related syndromes have severe phenotypes. This chapter describes how CNC cells are formed and contribute to their final destinations. Essential signalling pathways are presented in the context of CNC development, and CNC-related syndromes are included to highlight this population’s broad importance during development.

scholarly journals PlexinA2 and semaphorin signaling during cardiac neural crest development

Development ◽  
2001 ◽  
Vol 128 (16) ◽  
pp. 3071-3080 ◽  
Author(s):  
Christopher B. Brown ◽  
Leonard Feiner ◽  
Min-Min Lu ◽  
Jun Li ◽  
Xiaokui Ma ◽  
...  
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Neural Crest ◽  
Congenital Heart ◽  
Neural Crest Cells ◽  
Model Systems ◽  
Cardiac Neural Crest ◽  
Neural Crest Development ◽  
The Central Nervous System ◽  
Mouse Lines

Classic studies using avian model systems have demonstrated that cardiac neural crest cells are required for proper development of the cardiovascular system. Environmental influences that perturb neural crest development cause congenital heart defects in laboratory animals and in man. However, little progress has been made in determining molecular programs specifically regulating cardiac neural crest migration and function. Only recently have complex transgenic tools become available that confirm the presence of cardiac neural crest cells in the mammalian heart. These studies have relied upon the use of transgenic mouse lines and fate-mapping studies using Cre recombinase and neural crest-specific promoters. In this study, we use these techniques to demonstrate that PlexinA2 is expressed by migrating and postmigratory cardiac neural crest cells in the mouse. Plexins function as co-receptors for semaphorin signaling molecules and mediate axon pathfinding in the central nervous system. We demonstrate that PlexinA2-expressing cardiac neural crest cells are patterned abnormally in several mutant mouse lines with congenital heart disease including those lacking the secreted signaling molecule Semaphorin 3C. These data suggest a parallel between the function of semaphorin signaling in the central nervous system and in the patterning of cardiac neural crest in the periphery.

scholarly journals Regulation of zebrafish melanocyte development by ligand-dependent BMP signaling

eLife ◽  
2019 ◽  
Vol 8 ◽  
Author(s):  
Alec K Gramann ◽  
Arvind M Venkatesan ◽  
Melissa Guerin ◽  
Craig J Ceol
Keyword(s):  
Neural Crest ◽  
Pigment Cell ◽  
Terminal Differentiation ◽  
Melanoma Cells ◽  
Cell Development ◽  
Bmp Signaling ◽  
Pigment Cells ◽  
Cell Type ◽  
Neural Crest Development ◽  
Direct Regulation

Preventing terminal differentiation is important in the development and progression of many cancers including melanoma. Recent identification of the BMP ligand GDF6 as a novel melanoma oncogene showed GDF6-activated BMP signaling suppresses differentiation of melanoma cells. Previous studies have identified roles for GDF6 orthologs during early embryonic and neural crest development, but have not identified direct regulation of melanocyte development by GDF6. Here, we investigate the BMP ligand gdf6a, a zebrafish ortholog of human GDF6, during the development of melanocytes from the neural crest. We establish that the loss of gdf6a or inhibition of BMP signaling during neural crest development disrupts normal pigment cell development, leading to an increase in the number of melanocytes and a corresponding decrease in iridophores, another neural crest-derived pigment cell type in zebrafish. This shift occurs as pigment cells arise from the neural crest and depends on mitfa, an ortholog of MITF, a key regulator of melanocyte development that is also targeted by oncogenic BMP signaling. Together, these results indicate that the oncogenic role ligand-dependent BMP signaling plays in suppressing differentiation in melanoma is a reiteration of its physiological roles during melanocyte development.

scholarly journals Meis2 is essential for cranial and cardiac neural crest development

2015 ◽  
Vol 15 (1) ◽  
Author(s):  
Ondrej Machon ◽  
Jan Masek ◽  
Olga Machonova ◽  
Stefan Krauss ◽  
Zbynek Kozmik
Keyword(s):  
Neural Crest ◽  
Cardiac Neural Crest ◽  
Neural Crest Development

scholarly journals Intracellular enhancement of BMP signaling by LIM-domain protein FHL3 controls spatiotemporal emergence of the neural crest driven by WNT signaling

2019 ◽  
Author(s):  
Mansour Alkobtawi ◽  
Patrick Pla ◽  
Anne H. Monsoro-Burq
Keyword(s):  
Wnt Signaling ◽  
Neural Crest ◽  
Bmp Signaling ◽  
Paraxial Mesoderm ◽  
List Type ◽  
Lim Domain ◽  
Neural Crest Development ◽  
Lim Domain Protein ◽  
Smad Phosphorylation ◽  
Domain Protein

AbstractHow multiple morphogen signals are coordinated in space and time to position key embryonic tissues remains elusive. During neural crest formation, bone morphogenetic protein (BMP), fibroblast growth factor (FGF) and WNT signaling cooperate by acting either on the paraxial mesoderm or directly on the neural border ectoderm, but how each tissue interprets this complex information remains poorly understood. Here we show that Fhl3, a scaffold LIM domain protein of previously unknown developmental function, is essential for neural crest formation by linking BMP and WNT signaling thereby positioning the neural crest-inducing signaling center in the paraxial mesoderm. During gastrulation, Fhl3 promotes Smad phosphorylation and Smad-dependent wnt8 activation specifically in the paraxial mesoderm, thus modifying the respective mesoderm or ectoderm cell response to the extracellular BMP gradient. This ensures neural border ectoderm specification by the underlying mesoderm via non-cell autonomous WNT signaling. During neurulation, neural crest inducers activate fhl3, promoting BMP/Smad-dependent WNT activity required for neural crest specification. Our findings highlight how Fhl3, acting cell-autonomously, ensures a fine spatial, temporal and germ layer-specific coordination of BMP and WNT signaling at several steps of neural crest development.Highlights:-FHL3 is a novel intracellular enhancer of BMP signaling during early development.-FHL3 ensures cross-talk between BMP and WNT signaling by Smad1-dependent wnt8 activation in the paraxial mesoderm.-FHL3 reiterated function in paraxial mesoderm and in neural border ectoderm is essential for neural crest development at the border of the neural plate.

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