929-果蝇视叶神经元命运的规格化与终末选择因子控制 episode artwork

EPISODE · May 8, 2026 · 16 MIN

929-果蝇视叶神经元命运的规格化与终末选择因子控制

from 聊聊Sci

这篇研究论文揭示了黑腹果蝇视叶中美杜莎(medulla)神经元多样性的发育机制。研究人员通过单细胞转录组测序(scRNA-seq)和遗传标记技术,详细绘制了神经元的空间起源图谱,并结合已知的时间模式和Notch信号状态,阐明了神经元身份的规范过程。研究发现,这些发育信号共同决定了末端选择因子(terminal selectors)的表达,而这些因子在神经元成熟后负责维持其特有的功能与形态。此外,通过随机森林模型证明,神经元的发育起源对其基因表达具有高度预测性。该成果深化了科学界对大脑发育中空间与时间信息如何整合并产生神经细胞多样性的理解。References:Simon F, Holguera I, Chen Y C, et al. Spatial, temporal and Notch determination of terminal selector expression controls neuronal cell fate in the Drosophila optic lobe[J]. Nature Neuroscience, 2026: 1-11.前往小宇宙评论区与主播互动

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929-果蝇视叶神经元命运的规格化与终末选择因子控制

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