1104-SPAC-seq与TARDIS:空间功能基因组学筛选与分析系统 episode artwork

EPISODE · Jun 9, 2026 · 24 MIN

1104-SPAC-seq与TARDIS:空间功能基因组学筛选与分析系统

from 聊聊Sci

该研究介绍了一种名为 SPAC-seq 的高通量空间 CRISPR 筛选技术,能够同时捕获组织中的全转录组信息与基因扰动数据。为了处理这些复杂数据,作者同步开发了 TARDIS 统计工具包,用于精准识别调控空间表型和信号通路的靶基因。通过在肺转移模型中应用该技术,研究揭示了 Icam1 缺失如何通过诱导免疫抑制生态位来促进肿瘤扩张。此外,针对 T 细胞浸润的时空筛选发现,SPP1-CD44 轴是抑制抗肿瘤免疫的关键机制,而敲除 CD44 可通过降低线粒体活性氧水平增强疗效。最后,研究还揭示了转录因子 Bhlhe40 通过调控趋化因子受体来决定 T 细胞在肿瘤微环境中的空间定位。综上所述,这一新平台为在复杂的疾病背景下探索空间功能基因组学提供了强有力的工具。References:Zhang H, Zhang Z, Wang P .Uncovering spatially resolved functional genomics with CRISPR screen sequencing. Cell, 2026; 0前往小宇宙评论区与主播互动

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1104-SPAC-seq与TARDIS:空间功能基因组学筛选与分析系统

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