多模式单细胞分析揭示了Ewing肉瘤中独特的融合调节的转录程序
bioRxiv : the preprint server for biology
|July 16, 2025
概括
尤文肉瘤 (EwS) 瘤的可塑性来自于共存的基因调节网络. 这些网络的不同丰富性提供了对EWS进展和患者结果的洞察力.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 基因组学就是基因组学.
背景情况:
- 尤文肉瘤 (EwS) 是一种由融合驱动的癌症,主要影响青少年.
- 虽然EWS::FLI1融合驱动EWS,但患者的结果表现出显著的变化.
- 瘤可塑性在EWS进展中的作用尚不清楚.
研究的目的:
- 调查EWS中的基因调控网络.
- 了解瘤可塑性如何导致EWS疾病的进展.
- 确定EWS中患者可变结果的基础分子机制.
主要方法:
- 用RNA和ATAC测序的单细胞联合测定来绘制基因调节网络的地图.
- 在EWS细胞系中对监管要素的全面描述.
- 分析患者的转录组数据,以评估模块的丰富性.
主要成果:
- 在EWS中确定了多个不同的基因调节模块.
- 在细胞系中观察到这些模块的不同使用和患病率.
- 模块显示出明显的表观遗传和转录基因特征,其中一些对TGF-β有反应.
- 在初级EWS瘤中证实了这些模块的丰富性.
结论:
- 在EWS瘤中,存在着共存的,差异丰富的基因调节网络.
- 由这些网络驱动的瘤可塑性可能解释了临床结果的差异.
- 结果提供了对EWS转录景观异质性的见解.
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