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首页> 外文期刊>Annual review of cell and developmental biology >Regulation of spermatogonial stem cell self-renewal in mammals
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Regulation of spermatogonial stem cell self-renewal in mammals

机译:哺乳动物精原干细胞自我更新的调控

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摘要

Mammalian spermatogenesis is a classic adult stem cell-dependent process, supported by self-renewal and differentiation of spermatogonial stem cells (SSCs). Studying SSCs provides a model to better understand adult stem cell biology, and deciphering the mechanisms that control SSC functions may lead to treatment of male infertility and an understanding of the etiology of testicular germ cell tumor formation. Self-renewal of rodent SSCs is greatly influenced by the niche factor glial cell line-derived neurotrophic factor (GDNF). In mouse SSCs, GDNF activation upregulates expression of the transcription factor-encoding genes bcl6b, etv5, and lhx1, which influence SSC self-renewal. Additionally, the non-GDNF-stimulated transcription factors Plzf and Taf4b have been implicated in regulating SSC functions. Together, these molecules are part of a robust gene network controlling SSC fate decisions that may parallel the regulatory networks in other adult stem cell populations.
机译:哺乳动物的精子发生是经典的成年干细胞依赖性过程,受精原干细胞(SSC)的自我更新和分化的支持。对SSC的研究为更好地了解成人干细胞生物学提供了一个模型,而破译控制SSC功能的机制可能会导致男性不育的治疗以及对睾丸生殖细胞肿瘤形成的病因学的理解。啮齿类动物SSC的自我更新受到小生因子神经胶质细胞系衍生的神经营养因子(GDNF)的极大影响。在小鼠SSC中,GDNF激活会上调转录因子编码基因bcl6b,etv5和lhx1的表达,从而影响SSC的自我更新。另外,非GDNF刺激的转录因子Plzf和Taf4b与调节SSC功能有关。这些分子在一起是控制SSC命运决定的强大基因网络的一部分,该决定可能与其他成体干细胞群体中的调控网络平行。

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