Decoding the spermatogonial stem cell niche under physiological and recovery conditions in adult mice and humans.

Decoding the spermatogonial stem cell niche under physiological and recovery conditions in adult mice and humans.
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DOI:
10.1126/sciadv.abq3173
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发表时间:
2023-08-04
期刊:
影响因子:
13.6
通讯作者:
--
中科院分区:
综合性期刊1区
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精原干细胞(SSC)和睾丸生态位之间的复杂相互作用是维持SSC稳态必不可少的,然而,这种相互作用在很大程度上仍然是未知的。在本研究中,为了表征潜在的信号通路和相关的旁分泌因子,我们描绘了生理条件下成年小鼠和人类的SSC和小生境细胞之间的细胞间相互作用,并解剖了恢复条件下SSC维持的小生境衍生调节,从而揭示了C-C基序趋化因子配体24和胰岛素样生长因子结合蛋白7在SSC维持中的重要作用。我们还建立了特定的旁分泌因子在人类生育中的临床相关性。总的来说,我们的工作解码成人SSC生态位作为一个有价值的参考未来的研究,男性不育症的病因,诊断和治疗。哺乳动物成体精原干细胞龛支持和调节SSC的稳态和再生。
The intricate interaction between spermatogonial stem cell (SSC) and testicular niche is essential for maintaining SSC homeostasis; however, this interaction remains largely uncharacterized. In this study, to characterize the underlying signaling pathways and related paracrine factors, we delineated the intercellular interactions between SSC and niche cell in both adult mice and humans under physiological conditions and dissected the niche-derived regulation of SSC maintenance under recovery conditions, thus uncovering the essential role of C-C motif chemokine ligand 24 and insulin-like growth factor binding protein 7 in SSC maintenance. We also established the clinical relevance of specific paracrine factors in human fertility. Collectively, our work on decoding the adult SSC niche serves as a valuable reference for future studies on the aetiology, diagnosis, and treatment of male infertility. The mammalian adult spermatogonial stem cell niche supports and regulates the SSC homeostasis and regeneration.
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