[HTML][HTML] Current perspectives of the signaling pathways directing neural crest induction

TJ Stuhlmiller, MI García-Castro - Cellular and Molecular Life Sciences, 2012 - Springer
TJ Stuhlmiller, MI García-Castro
Cellular and Molecular Life Sciences, 2012Springer
The neural crest is a migratory population of embryonic cells with a tremendous potential to
differentiate and contribute to nearly every organ system in the adult body. Over the past two
decades, an incredible amount of research has given us a reasonable understanding of how
these cells are generated. Neural crest induction involves the combinatorial input of multiple
signaling pathways and transcription factors, and is thought to occur in two phases from
gastrulation to neurulation. In the first phase, FGF and Wnt signaling induce NC progenitors …
Abstract
The neural crest is a migratory population of embryonic cells with a tremendous potential to differentiate and contribute to nearly every organ system in the adult body. Over the past two decades, an incredible amount of research has given us a reasonable understanding of how these cells are generated. Neural crest induction involves the combinatorial input of multiple signaling pathways and transcription factors, and is thought to occur in two phases from gastrulation to neurulation. In the first phase, FGF and Wnt signaling induce NC progenitors at the border of the neural plate, activating the expression of members of the Msx, Pax, and Zic families, among others. In the second phase, BMP, Wnt, and Notch signaling maintain these progenitors and bring about the expression of definitive NC markers including Snail2, FoxD3, and Sox9/10. In recent years, additional signaling molecules and modulators of these pathways have been uncovered, creating an increasingly complex regulatory network. In this work, we provide a comprehensive review of the major signaling pathways that participate in neural crest induction, with a focus on recent developments and current perspectives. We provide a simplified model of early neural crest development and stress similarities and differences between four major model organisms: Xenopus, chick, zebrafish, and mouse.
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