636-哺乳动物小脑细胞的发育与演化研究 episode artwork

EPISODE · Mar 14, 2026 · 21 MIN

636-哺乳动物小脑细胞的发育与演化研究

from 聊聊Sci

这项研究通过对人类、小鼠和短尾灰负鼠约40万个细胞进行单核RNA测序,系统地绘制了哺乳动物小脑发育的分子图谱。研究者建立了一套通用的细胞分类标准,发现在过去1.6亿年的进化过程中,小脑主要神经元的发育程序与分化轨迹高度保守。然而,研究也指出人类小脑中早期生成的普肯野细胞子类出现了显著扩张,这可能与人类新皮层的演化增长相匹配。此外,研究识别出大量在特定物种中获得或失去表达的同源基因,揭示了细胞水平上的基因功能重用。这些发现不仅阐明了大脑进化的分子基础,也为理解人类神经系统疾病提供了跨物种的遗传学参考。References: Sepp M, Leiss K, Murat F, et al. Cellular development and evolution of the mammalian cerebellum[J]. Nature, 2024, 625(7996): 788-796.前往小宇宙评论区与主播互动

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636-哺乳动物小脑细胞的发育与演化研究

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