Hedgehog in the Drosophila testis niche: what does it do there?

Hedgehog in the Drosophila testis niche: what does it do there?
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果蝇睾丸生态位中的刺猬:它在那里做什么?

DOI:
10.1007/s13238-013-3040-y
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发表时间:
2013-06
期刊:
Protein & Cell
影响因子:
--
通讯作者:
Zhao, Yun
Zhao, Yun
中科院分区:
其他
文献类型:
--
作者:
Zhang, Zhao;Pan, Chenyu;Zhao, Yun

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干细胞生态位是一种对自我更新至关重要的特殊微环境。果蝇精巢中含有两种不同类型的干细胞,即生殖系干细胞和体细胞包囊干细胞,它们通过各自的生态位信号来维持,是研究干细胞与宿主生态位相互作用的良好系统。已知JAK-STAT和BMP通路在不同种类干细胞的自我更新中发挥关键作用,但最近在睾丸生态位中的复杂信号网络中出现了其他几种通路的作用。来自三个研究小组的独立观察报告揭示了刺猬(Hh)在果蝇睾丸生态位中的重要作用。在这篇综述中,我们总结了这些最新的研究结果,并讨论了Hh信号转导机制和JAK-STAT和BMP通路之间的相互作用。我们还讨论了进一步调查的方向。
Stem cell niche is a specialized microenvironment crucial to self-renewal. The testis in Drosophila contains two different types of stem cells, the germline stem cells and the somatic cyst stem cells that are sustained by their respective niche signals, thus is a good system for studying the interaction between the stem cells and their hosting niche. The JAK-STAT and BMP pathways are known to play critical roles in the self-renewal of different kinds of stem cells, but the roles of several other pathways have emerged recently in a complex signaling network in the testis niche. Reports of independent observations from three research groups have uncovered an important role of Hedgehog (Hh) in the Drosophila testis niche. In this review, we summarize these recent findings and discuss the interplay between the Hh signaling mechanisms and those of the JAK-STAT and BMP pathways. We also discuss directions for further investigation.
DOI: 10.1073/pnas.93.9.4224
发表时间: 1996-04
影响因子: 11.1
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