乳腺癌进展的3D基因组汇编
Teun van den Brand1, Maria Donaldson Collier2, Koen D Flach1
1Division of Gene Regulation, Netherlands Cancer Institute, Amsterdam, the Netherlands.
iScience
|September 2, 2025
概括
在早期乳腺癌发育和转移过程中,3D基因组组织令人惊地稳定. 然而,经过大量治疗的肺部转移显示出显著的3D基因组解脱和患者特异性变化.
科学领域:
- 基因组学
- 癌症生物学
- 表观遗传学
背景情况:
- 在癌症进展过程中,基因表达发生显著变化.
- 三维基因组组织在基因调节中起着至关重要的作用.
- 疾病进展对3D基因组结构的影响尚不清楚.
研究的目的:
- 在乳腺癌进展过程中对3D基因组组织的改变进行调查.
- 将原发性瘤的3D基因组变化与同一患者的转移部位进行比较.
主要方法:
- 分析乳腺癌不同阶段的3D基因组组织.
- 分析同一患者的瘤样本以追踪疾病进展和转移.
- 在拓关联域 (TAD) 和基因组组件层面检查变化.
主要成果:
- 在瘤形成和转移过程中,拓关联域 (TAD) 和基因组组表现出显著的稳定性.
- 胸腔转移,表明严重预先治疗的进展性疾病,表现出显著的3D基因组变化.
- 在多发性转移中观察到3D基因组组织的显著患者间异质性.
结论:
- 乳腺癌的进展与3D基因组的逐渐解开有关.
- 虽然早期阶段保持结构完整性,但晚期疾病显示出深刻而异质的3D基因组重组.
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