Germline stem cells: stems of the next generation.

Germline stem cells: stems of the next generation.
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DOI:
10.1016/j.ceb.2010.08.013
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发表时间:
2010-12
影响因子:
7.5
通讯作者:
Yamashita, Yukiko M.
Yamashita, Yukiko M.
中科院分区:
生物学2区
文献类型:
--
作者:
Yuan, Hebao;Yamashita, Yukiko M.

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生殖系干细胞(GSCs)在生物体的生命过程中维持配子发生。最近的进展大大扩展了我们对GSC行为的理解,包括干细胞自我更新,干细胞不对称分裂,干细胞壁龛,去分化和组织衰老的机制。由于生物体需要产生大量分化细胞,GSC通常是高度增殖的。虽然许多体干细胞是多能的,具有潜在的多种分化途径,但GSC是单能的。由于这些相对简单的特性(例如恒定的增殖和单能性),GSC已经成为研究成体干细胞行为的理想模型系统,导致了许多重要的发现。在这里,我们总结了GSC生物学的最新进展,重点是进化保守的机制。
Germline stem cells (GSCs) sustain gametogenesis during the life of organisms. Recent progress has substantially extended our understanding of GSC behavior, including the mechanisms of stem cell self-renewal, asymmetric stem cell division, stem cell niches, dedifferentiation, and tissue aging. GSCs typically are highly proliferative, due to organismal requirement to produce large number of differentiated cells. While many somatic stem cells are multipotent, with potentially multiple differentiation pathways, GSCs are unipotent. For these relatively simple characteristics (e.g. constant proliferation and unipotency), GSCs have served as ideal model systems for the study of adult stem cell behavior, leading to many important discoveries. Here, we summarize recent progress in GSC biology, with an emphasis on evolutionarily conserved mechanisms.
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