EPISODE · Sep 4, 2026 · 19 MIN
1538-人脑类器官的长期发育与时间记忆评估
from 聊聊Sci
这项研究展示了人脑类器官在长达五年的体外培养中，能够精确模拟人类大脑发育过程中极其缓慢的成熟特征。通过单细胞测序、全基因组甲基化分析及功能成像，研究人员发现类器官在转录组和表观遗传层面表现出高度的时间相关性，其内置的“分子钟”记录了从胚胎期到出生后的发育足迹。此外，研究团队开发出一种改进的培养基，显著提升了兴奋性神经元的存活率与突触复杂度，使神经回路能长期维持功能活性。更重要的是，实验证明类器官中的神经祖细胞具有发育记忆，能跳过早期阶段直接产生后期命运的神经元。这些成果确立了长寿命类器官作为研究人类大脑后期发育及相关疾病的关键模型地位。References:Faravelli I, Antón-Bolaños N, Wei A, et al. Human brain organoids record the passage of time over multiple years[J]. Nature, 2026: 1-11.前往小宇宙评论区与主播互动
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1538-人脑类器官的长期发育与时间记忆评估
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