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结直肠癌中的空间定义的多细胞功能单元从单细胞和空间转录学中揭示出来

Inbal Avraham-Davidi^1,2, Simon Mages^1,3,2, Johanna Klughammer^1,3,2

¹Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA, USA.

bioRxiv : the preprint server for biology

|July 16, 2025

概括

这项研究使用先进的基因组学绘制了结肠瘤生态系统的地图,揭示了对于疾病进展至关重要的独特的细胞社区. 在小鼠中的这些空间模式反映了人类结直肠癌 (CRC),为恶性瘤和患者的结果提供了洞察力.

科学领域:

基因组学就是基因组学.
癌症生物学癌症生物学
空间转录学空间转录学

背景情况:

单细胞基因组学推进了瘤生态系统分析,但与空间组织和相互作用作斗争.
描述细胞空间组织对于理解瘤进展和疾病结果至关重要.

研究的目的:

创建一个健康和不整形结肠细胞生态系统的详细空间地图.
研究细胞空间组织与结直肠癌 (CRC) 进展之间的关联.
开发一个框架来推断从小鼠模型到人类疾病的发现.

主要方法:

结合单细胞RNA测序 (scRNA-seq),Slide-seq空间转录组学,以及局部多重RNA分析.
分析了可诱导的基因CRC小鼠模型,这些模型总结了人类CRC特征.
将细胞类型和表达程序分配给空间位置和计算识别的区域特征.

主要成果:

瘤组织成不同的细胞社区,具有独特的细胞亚型,表达程序和局部相互作用.
在小鼠模型和人类CRC之间,细胞组成和空间布局特征被保留了.
鼠标瘤社区与恶性瘤和人类患者瘤的临床结果相关.

结论:

该研究为细胞生态系统的空间绘制提供了一个全面的框架,适用于各种组织和疾病.
在跨物种的CRC中确定了保存的空间组织原则.
突出了小鼠模型对于理解人类结直肠癌进展和结果的翻译相关性.

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