追踪从原发性到转移性ccRCC的非遗传演变:TRACERx 脏
Ángel Fernández-Sanromán1, Annika Fendler2, Benjy J Y Tan3
1The Francis Crick Institute, London, United Kingdom.
Cancer discovery
|January 8, 2025
概括
清细胞细胞癌 (ccRCC) 与遗传变化一起显示出显著的非遗传进化. 这影响瘤特征和免疫微环境,揭示了新的治疗途径.
科学领域:
- 在瘤学瘤学.
- 遗传学 是一个遗传学.
- 免疫学 免疫学 免疫学
背景情况:
- 已知清细胞细胞癌 (ccRCC) 的遗传演变及其临床影响.
- 在ccRCC中,遗传特征与表型和瘤微环境 (TME) 的共同进化尚未得到充分理解.
研究的目的:
- 调查基因改变,表型变化和ccRCC中的TME之间的相互作用.
- 确定推动ccRCC中的瘤演变的非遗传机制.
主要方法:
- 在TRACERx脏研究中,联合基因组和转录组分析了79名患者的243个ccRCC样本.
- 瘤转录组的遗传学分析和整合,以研究进化模式.
主要成果:
- 在ccRCC中,超过40%的内异质性并不能由遗传变化解释.
- 观察到像增殖和代谢重编程这样的表型特征的融合进化,与体积有关.
- 确定了TME从抗瘤转变为免疫抑制剂的转变,与晚期获得的ccRCC驱动因素 (9p损失,SETD2突变) 相关.
- 发现了瘤和T细胞谱之间的共同进化.
结论:
- 非遗传因素在ccRCC进化中发挥着重要作用,对瘤内部异质性作出了重大贡献.
- 理解这些非遗传进化模式对于开发有效的ccRCC疗法至关重要.
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