在食道腺癌的新辅助治疗期间,进化和免疫微环境的动态
Melissa Barroux1,2,3, Jacob Househam4,5, Eszter Lakatos4,6
1Evolution and Cancer Laboratory, Centre for Genomics and Computational Biology, Barts Cancer Institute, Queen Mary University of London, London, UK. melissa.barroux@mri.tum.de.
Nature cancer
|May 14, 2025
概括
治疗食道腺癌会导致显著的转录和瘤微环境变化. 有限的遗传进化表明癌细胞以表型适应,有助于治疗耐药性和复发.
科学领域:
- 在瘤学瘤学.
- 基因组学就是基因组学.
- 免疫学 免疫学 免疫学
背景情况:
- 局部发达的食道腺癌会给治疗带来挑战.
- 驱动治疗耐药性和复发的生态和进化动态尚未完全理解.
研究的目的:
- 在新辅助治疗期间研究食道腺癌患者的纵向多基因变化.
- 了解影响治疗反应和复发的遗传和微环境因素.
主要方法:
- 27名患者的纵向多区域,多时间点全外和转录组测序.
- 使用成像质细胞计和T细胞受体测序分析瘤微环境.
- 遗传和转录基因数据与治疗反应的相关性.
主要成果:
- 在治疗期间观察到显著的转录基因变化,包括免疫,层状和瘤性通路的升调.
- 克隆扫描的证据有限,表明治疗期间罕见的遗传进化.
- 瘤微环境重塑,具有特定的免疫表型 (遗传免疫逃脱,较少的细胞毒性T细胞,缺乏克隆性T细胞扩张) 与治疗反应不佳有关.
结论:
- 治疗导致食道腺癌的广泛转录和环境变化.
- 有限的克隆替代表明表型可塑性,而不是遗传进化驱动治疗适应.
- 了解这些动态对于改善食道腺癌的治疗策略至关重要.
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