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Translating niche-derived signals into neurogenesis: the function of Prox1 in the adult hippocampus.

机译:将小生境来源的信号转化为神经发生:成人海马中Pr​​ox1的功能。

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摘要

The adult mammalian brain sustains two neurogenic niches harboring neural stem cells (NSCs) that hold the capacity to generate substantial numbers of new neurons throughout life: the subventricular zone (SVZ) of the lateral ventricles and the hip-pocampal dentate gyrus (DG). Despite significant progress over the last decade in understanding the molecular and cellular mechanisms underlying the life-long production of new neurons, the regulatory networks that integrate niche-derived signals and orchestrate the process of neuro-genesis in the adult brain remain largely unclear.Using conditional genetic deletion or shRNA-based strategies, recent studies showed that Proxl, a prospero-related homeodomain transcription factor that is in the adult forebrain, exclusively expressed in the dentate granule cell lineage, is required for the differentiation and survival of newly generated granule cells in the adult hippocampus.
机译:成年哺乳动物的大脑维持着两个神经源性壁ni,它们具有神经干细胞(NSC),它们具有在整个生命中产生大量新神经元的能力:侧脑室的脑室下区(SVZ)和海马状齿状回(DG)。尽管在过去十年中在了解新神经元终生产生的分子和细胞机制方面取得了重大进展,但整合利基来源信号并协调成年大脑中神经发生过程的调节网络仍然不清楚。条件性遗传删除或基于shRNA的策略,最近的研究表明,Proxl是成年前脑中与脾脏相关的同源域转录因子,仅在齿状颗粒细胞谱系中表达,是新产生的颗粒细胞的分化和存活所必需的在成年海马。

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