A family business: stem cell progeny join the niche to regulate homeostasis.

A family business: stem cell progeny join the niche to regulate homeostasis.
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DOI:
10.1038/nrm3272
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发表时间:
2012-01-23
期刊:
Nature reviews. Molecular cell biology
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干细胞生态位是干细胞居住的离散微环境,在调节干细胞活动和行为方面发挥着主导作用。最近的研究表明,承诺的干细胞后代在广泛的干细胞系统中成为利基的不可或缺的组成部分。这些意想不到的利基居民为他们的干细胞父母提供了多样化的反馈信号。它们与构成生态位的其他异源细胞类型一起,对微环境的动态做出了贡献。由于后代通常位于干细胞利基附近,类似的反馈调节可能是不同干细胞系统共有的基本原则。
Stem cell niches, the discrete microenvironments in which the stem cells reside, play a dominant part in regulating stem cell activity and behaviours. Recent studies suggest that committed stem cell progeny become indispensable components of the niche in a wide range of stem cell systems. These unexpected niche inhabitants provide versatile feedback signals to their stem cell parents. Together with other heterologous cell types that constitute the niche, they contribute to the dynamics of the microenvironment. As progeny are often located in close proximity to stem cell niches, similar feedback regulations may be the underlying principles shared by different stem cell systems.
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