谱系承诺途径在表观遗传上反对瘤性Gαq/11-YAP1信号在休眠传播性皮膜黑色素瘤中
bioRxiv : the preprint server for biology
|March 18, 2024
概括
核受体NR2F1通过表观遗传沉默关键通路,诱导阴道黑色素瘤 (UM) 传播癌细胞的休眠状态. 这一发现为预防UM转移提供了新的目标.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 卵巢黑色素瘤 (UM) 可以在初始治疗后的几年内转移.
- 散播癌细胞 (DCC) 可以进入休眠状态,逃避治疗.
- 了解DCC休眠的机制对于预防转移至关重要.
研究的目的:
- 为了确定阴道黑色素瘤扩散癌细胞 (DCC) 休眠的关键调节者.
- 阐明NR2F1诱导和维持DCC休眠的分子机制.
- 探索NR2F1作为一种潜在的治疗瘤的潜在治疗点.
主要方法:
- 使用了Gαq/11mut/BAP1wt UM异种移植模型和人类转移样本.
- 进行了RNA测序和Cut&Run分析.
- 研究了NR2F1.1对基因表达的表观遗传调节.
主要成果:
- 确定NR2F1是UM DCC休眠的关键诱导因素.
- NR2F1通过改变基因组标记来调节神经基因并使YAP1/TEAD1沉默.
- NR2F1淘汰会重新激活休眠的DCCs,导致肝脏转移性生长.
- 在人类转移样本中观察到逆NR2F1和YAP1表达.
- NR2F1抑制了G蛋白信号组件,短路瘤基因信号.
结论:
- NR2F1在表观遗传上抑制了参与G蛋白信号传递,细胞循环和YAP1/TEAD1通路的基因,从而诱导UM DCCs的休眠状态.
- NR2F1充当了脑膜黑色素瘤休眠期的关键调节者.
- NR2F1代表了一种有前途的治疗点,用于拦截残留和转移性乳膜黑色素瘤.
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