1090-生精上皮周期的空间转录组学研究 episode artwork

EPISODE · Jun 6, 2026 · 21 MIN

1090-生精上皮周期的空间转录组学研究

from 聊聊Sci

这项研究利用空间转录组学技术 (seqFISH+) 深入解析了小鼠睾丸中生精上皮周期的时间架构。研究人员在单细胞分辨率下绘制了超过2600个基因的表达图谱,发现支持细胞 (Sertoli cells) 拥有与生殖细胞发育同步的内源性转录振荡周期。即使在缺乏生殖细胞的情况下,支持细胞的这种周期性波动依然存在,表明其具有自主的生理节律。研究进一步确认视黄酸 (RA) 是维持该周期运转的必需许可信号,而Wnt通路等生殖细胞信号则起到了微调同步的作用。这项成果构建了一个整合模型,揭示了睾丸如何通过内在生物钟与细胞间通讯协同调控精子的持续产生。References:Chakravorty A, Yun J, Amrhein H, et al. The temporal architecture of the seminiferous epithelial cycle revealed by spatial transcriptomics[J]. Cell, 2026.前往小宇宙评论区与主播互动

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