Endoderm-derived Sonic hedgehog and mesoderm Hand2 expression are required for enteric nervous system development in zebrafish

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Endoderm-derived Sonic hedgehog and mesoderm Hand2 expression are required for enteric nervous system development in zebrafish.

The zebrafish enteric nervous system (ENS), like those of all other vertebrate species, is principally derived from the vagal neural crest cells (NCC). The developmental controls that govern the migration, proliferation and patterning of the ENS precursors are not well understood. We have investigated the roles of endoderm and Sonic hedgehog (SHH) in the development of the ENS. We show that end...

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sonic hedgehog is required in pulmonary endoderm for atrial septation.

The genesis of the septal structures of the mammalian heart is central to understanding the ontogeny of congenital heart disease and the evolution of cardiac organogenesis. We found that Hedgehog (Hh) signaling marked a subset of cardiac progenitors specific to the atrial septum and the pulmonary trunk in the mouse. Using genetic inducible fate mapping with Gli1(CreERT2), we marked Hh-receiving...

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Development of the zebrafish enteric nervous system.

The enteric nervous system (ENS) is composed of neurons and glia that modulate many aspects of intestinal function. The ability to use both forward and reverse genetic approaches and to visualize development in living embryos and larvae has made zebrafish an attractive model in which to study mechanisms underlying ENS development. In this chapter, we review the recent work describing the develo...

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Sonic hedgehog controls enteric nervous system development by patterning the extracellular matrix.

The enteric nervous system (ENS) develops from neural crest cells that migrate along the intestine, differentiate into neurons and glia, and pattern into two plexuses within the gut wall. Inductive interactions between epithelium and mesenchyme regulate gut development, but the influence of these interactions on ENS development is unknown. Epithelial-mesenchymal recombinations were constructed ...

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Hedgehog and Notch signaling in enteric nervous system development.

The enteric nervous system (ENS) in mammals is derived from a small pool of progenitor cells, namely enteric neural crest cells (NCCs). These precursor cells proliferate extensively to expand, migrate over a long distance to fully colonize the developing gut and differentiate into millions of neurons and glia to form a functional ENS for regulating the complex behaviors of the gut. This develop...

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ژورنال

عنوان ژورنال: Developmental Biology

سال: 2008

ISSN: 0012-1606

DOI: 10.1016/j.ydbio.2008.02.061