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在前转移性淋巴结前的瘤驱动的 stromal 重编程

Michelle Piquet¹, David A Ruddy¹, Viviana Cremasco²

¹Oncology Innovative Targets and Technologies, Novartis, Cambridge, MA, 02139, USA.

|October 27, 2025

概括

瘤信号重新编程淋巴结 stromal 细胞,创建一个前转移的利基. 这些变化涉及边缘网状细胞和淋巴内皮细胞,促进癌细胞转移.

科学领域:

在瘤学瘤学.
免疫学免疫学免疫学
细胞生物学细胞生物学

背景情况:

转移性传播取决于受体利基,受主要瘤信号的影响.
淋巴结通过淋巴细胞接触到瘤信号,可以重新编程以支持转移或免疫抑制.

研究的目的:

描述瘤驱动的淋巴结中瘤驱动的淋巴结内 stromal 细胞的转录基因变化.

主要方法:

单细胞RNA测序被用于在瘤携带和天真小鼠的淋巴结中描述树皮细胞重编程.

主要成果:

瘤信号印记在淋巴结亚囊鼻腔中的边缘网状细胞 (MRC) 和床淋巴内皮细胞 (fLEC) 中.
MRCs表现出早期的非塑性CAF分化特征,fLECs激活了癌细胞招募的化学吸引剂途径,这两种人群都表现出代谢和免疫调节的重编程.
这些变化是针对瘤排水淋巴结的,而不是在炎症挑战期间观察到的.

结论:

这些发现支持了转移前利基形成的概念.
已识别的树皮细胞重编程为未来的治疗策略提供了潜在的目标.

关键词:

内皮细胞内皮细胞内皮细胞纤维母细胞细胞是如何形成的干细胞是干细胞的组成部分.瘤排水淋巴结的淋巴结.转移转移转移转移前转移前的尼奇.我们的 scRNAseqq.

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