Assembling neural crest regulatory circuits into a gene regulatory network.

Assembling neural crest regulatory circuits into a gene regulatory network.
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DOI:
10.1146/annurev.cellbio.042308.113245
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发表时间:
2010
影响因子:
11.3
通讯作者:
Sauka-Spengler T
Sauka-Spengler T
中科院分区:
生物学1区
文献类型:
--
作者:
Betancur P;Bronner-Fraser M;Sauka-Spengler T

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神经嵴是一种多能干细胞样细胞群,在脊椎动物胚胎中产生广泛的衍生物,包括颅面骨骼和外周神经系统的元素以及黑素细胞。神经嵴形成的一系列监管步骤,包括诱导和规范的预期神经嵴领土-神经板边界,规范真正的神经嵴祖细胞,分化成不同的衍生物。神经嵴个体发育过程中的这些个体过程是由调控回路控制的,这些调控回路可以组装成一个分层的基因调控网络(GRN)。在这里,我们提出了一个概述的GRN,协调颅神经嵴细胞的形成。该网络的形成主要依赖于从几种脊椎动物模式生物中进行的基因扰动研究中推断的信息。我们的颅神经嵴GRN的表示还包括从迄今为止进行的顺式调节分析获得的直接调节相互作用的信息,这增加了网络内的架构电路的分辨率。
The neural crest is a multipotent stem cell--like population that gives rise to a wide range of derivatives in vertebrate embryo including elements of the craniofacial skeleton and peripheral nervous system as well as melanocytes. The neural crest forms in a series of regulatory steps that include induction and specification of the prospective neural crest territory--neural plate border, specification of bona fide neural crest progenitors, and differentiation into diverse derivatives. These individual processes during neural crest ontogeny are controlled by regulatory circuits that can be assembled into a hierarchical gene regulatory network (GRN). Here we present an overview of the GRN that orchestrates the formation of cranial neural crest cells. Formulation of this network relies on information largely inferred from gene perturbation studies performed in several vertebrate model organisms. Our representation of the cranial neural crest GRN also includes information about direct regulatory interactions obtained from the cis-regulatory analyses performed to date, which increases the resolution of the architectural circuitry within the network.
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