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对胆囊癌的多组分析确定了与疾病进展相关的独特瘤微环境

Tao Zhou¹, Yanhong Wu², Shuai Li³

¹The International Cooperation Laboratory on Signal Transduction, National Center for Liver Cancer, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai, China.

Nature genetics

|June 26, 2025

概括

这项研究绘制了胆囊癌 (GBC) 瘤微环境的地图,确定了一个前转移性利基. 这一利基涉及特定的免疫细胞和信号通路,阻碍了免疫治疗的有效性.

科学领域:

在瘤学瘤学.
免疫学免疫学免疫学
基因组学就是基因组学.
癌症生物学癌症生物学

背景情况:

胆囊癌 (GBC) 是一种具有高死亡率的侵袭性癌症.
由于缺乏了解瘤微环境驱动因素,有效治疗受到挑战.
确定现场驱动因素对于开发向疗法至关重要.

研究的目的:

创建一个全面的单细胞地图和GBC的突变景观.
描述GBC微环境的时空动态.
确定关键的细胞相互作用和驱动GBC进展和转移的分子功能.

主要方法:

从102名GBC患者中生成了一个由1,117,245个细胞组成的单细胞地图.
进行了突变性景观分析.
利用综合上皮细胞程序 (AI-EPI) 和空间转录组分析.
进行了体外和体内实验.

主要成果:

在GBC微环境中确定了五个不同的本地生态系统,与临床结果相关.
揭示了一种由恶性瘤亚型 (GM16) 和特定免疫细胞 (AREG+ T细胞,B细胞,树突细胞,巨细胞) 特征的亲转移性利基.
证明AREG通过EGFR-pERK-EGR1信号传递促进转移和CXCL5表达,增加中性粒细胞透,降低免疫疗法的疗效.

结论:

该研究提供了GBC微环境的详细时空地图.
确定了关键通路 (AREG-EGFR-CXCL5-中性粒细胞),有助于GBC转移和免疫治疗耐药性.
提供了克服GBC免疫疗法耐药性的潜在策略.

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