纤维细胞TGF-β信号定义了与免疫检查点阻塞抵抗相关的空间瘤生态系统
Seo-Young Lee1, Youngjoo Lee2,3
1Center for Lung Cancer, National Cancer Center Hospital, Goyang, South Korea. seoyoung6445@snu.ac.kr.
Communications biology
|December 1, 2025
概括
肺腺癌中对免疫检查点阻塞 (ICB) 的抵抗通常是由免疫抑制生态系统 (EC10) 驱动的. 向TGF-β通路可能会克服这种抵抗,改善患者的治疗结果.
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.
背景情况:
- 免疫检查点阻塞 (ICB) 抵抗是治疗肺腺癌 (LUAD) 的重要障碍.
- stromal 因素在 CD8+ T 细胞耗尽中的作用,这是抵抗的关键机制,尚未完全理解.
研究的目的:
- 为了识别和表征在LUAD瘤内不同的细胞生态系统.
- 研究ICB耐药性背后的机制,并确定潜在的治疗点.
主要方法:
- 使用EcoTyper集成单细胞,批量和空间转录数据.
- 细胞间细胞通信通路的分析.
- 鉴定的生态型与ICB治疗的LUAD队列中的临床结果的相关性.
主要成果:
- 鉴定了一种免疫抑制性生态型 (EC10),其特点是TGF-β信号传递和上皮层-介质酶过渡.
- EC10生态型显示了纤维细胞,恶性细胞和耗尽的CD8+T细胞的空间共定位.
- EC10与免疫排除,不良的无进展生存率和ICB耐药性有关,由纤维细胞衍生TGFB1-SERPINE1轴驱动.
- 还确定了一种炎症性,ICB敏感的生态型 (EC12),富含干扰素信号.
结论:
- EC10代表了一个空间有组织的,由纤维细胞驱动的免疫抑制生态系统,预测LUAD中的ICB耐药性.
- 准TGF-β信号通路是一个有前途的治疗策略,用于克服LUAD中的ICB抵抗.
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