618-空间多组学揭示细胞特异性核区室

这项研究介绍了一种名为 two-layer DNA seqFISH+ 的空间多组学新技术，能够同时在单细胞层面绘制 10 万个基因组位点、新生转录组以及多种亚核结构的图谱。通过对小鼠脑组织的研究，科学家发现抑制性染色质区域在不同细胞类型间表现出极高的变异性，而活性区域则相对保守。研究特别指出，RNA 聚合酶 II 聚集点与特定的细胞类型长基因密切相关，其分布规律有别于传统的核小体。此外，H4K20me3 标记的异染色质在神经元内部形成了独特的空间分布，直接驱动了染色质的径向定位和跨染色体相互作用。该成果为理解复杂组织中核内空间架构如何精准调控基因表达提供了高分辨率的全景视角。References:* Takei Y, Yang Y, White J, et al. Spatial multi-omics reveals cell-type-specific nuclear compar...去小宇宙查看完整单集简介前往小宇宙评论区与主播互动

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618-空间多组学揭示细胞特异性核区室

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