The dynamic role of bone morphogenetic proteins in neural stem cell fate and maturation.

The dynamic role of bone morphogenetic proteins in neural stem cell fate and maturation.
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骨形态发生蛋白在神经干细胞命运和成熟中的动态作用。

DOI:
10.1002/dneu.22022
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发表时间:
2012-07
影响因子:
3
通讯作者:
Kessler, John A.
Kessler, John A.
中科院分区:
医学3区
文献类型:
--
作者:
Bond, Allison M.;Bhalala, Oneil G.;Kessler, John A.

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骨形态发生蛋白(BMPs)是一组对神经系统发育至关重要的强有力的形态发生素。BMP信号对神经干细胞的影响是无数的和动态的,随着发育的每个阶段而变化。在早期发育过程中,BMP信号传导的抑制将神经外胚层与外胚层区分开,并且BMP信号传导有助于指定神经嵴。因此,BMP信号传导的调节是中枢和外周神经系统形成的基础。然后,从背侧结构分泌的BMP形成梯度,其有助于形成发育中的脊髓和大脑的背腹轴的图案。在前脑发育过程中,BMP依次诱导神经发生和星形胶质细胞发生,并参与未成熟神经元的轴突生长。BMP信号在维持脑室下区(SVZ)和颗粒下区(SGZ)中的成体神经干细胞龛中也起着关键作用。骨形成蛋白能够发挥这种不同的影响,通过密切调节时空表达和与其他信号通路的相互作用。
The bone morphogenetic proteins (BMPs) are a group of powerful morphogens that are critical for development of the nervous system. The effects of BMP signaling on neural stem cells are myriad and dynamic, changing with each stage of development. During early development inhibition of BMP signaling differentiates neuroectoderm from ectoderm, and BMP signaling helps to specify neural crest. Thus modulation of BMP signaling underlies formation of both the central and peripheral nervous systems. BMPs secreted from dorsal structures then form a gradient which helps pattern the dorsal–ventral axis of the developing spinal cord and brain. During forebrain development BMPs sequentially induce neurogenesis and then astrogliogenesis and participate in neurite outgrowth from immature neurons. BMP signaling also plays a critical role in maintaining adult neural stem cell niches in the subventricular zone (SVZ) and subgranular zone (SGZ). BMPs are able to exert such diverse effects through closely regulated temporospatial expression and interaction with other signaling pathways.
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