该NCOR-HDAC3联合抑制复合体调节了转录因子ERG的白血病产生潜力
Eitan Kugler1,2, Shreyas Madiwale1,3, Darren Yong4,5
1Department of Human Molecular Genetics and Biochemistry, Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
Nature communications
|September 22, 2023
概括
在ERG蛋白 (ETS相关基因) 中的一种特定的普罗林对白血病的发展至关重要. 针对其与NCoR-HDAC3复合物的相互作用,可能提供新的癌症疗法.
科学领域:
- 分子生物学分子生物学
- 在瘤学瘤学.
- 基因法规 基因法规
背景情况:
- 与ETS相关的基因 (ERG) 转录因子与各种癌症有关,特别是白血病.
- 了解特定的ERG域和驱动白血病发生的辅因子对于治疗开发至关重要.
- 针对像ERG这样的转录因子在药物发现中提出了重大挑战.
研究的目的:
- 为了确定关键的ERG域和参与诱导白血病的相互作用.
- 为了研究一种特定的プロ林残留物 (P199) 在ERG的致癌功能中的作用.
- 探索将ERG-NCoR-HDAC3综合体作为治疗策略的潜在目标.
主要方法:
- 在ERG PNT域中的位置199 (P199) 改变proline的位点定向突变发生.
- 试验评估ERG对造血原生细胞自我更新和分化的影响.
- 在小鼠模型中进行白血病诱导研究.
- 同免疫沉评估ERG与NCoR-HDAC3复合物的相互作用.
- 在癌症细胞系中使用HDAC3抑制剂的抑制研究.
主要成果:
- 在ERG PNT域内的位置199 (P199) 处的一种保守的プロ林对于ERG诱导的白血病至关重要.
- 对于ERG来说,P199是必要的,以增强自身更新,并阻断血造原生细胞中的髓状细胞分化.
- P199调解了ERG与NCoR-HDAC3联合抑制器复合体之间的相互作用.
- 抑制HDAC3活性显著降低了ERG驱动的白血病和前列腺癌细胞的扩散.
结论:
- 在ERG中的P199残留物通过促进与NCoR-HDAC3复合体相互作用,在其白血病发生活性中发挥关键作用.
- 对于ERG的致癌功能来说,ERG-NCoR-HDAC3的相互作用至关重要.
- 针对ERG和NCoR-HDAC3联合抑制器复合体之间的相互作用,代表了对ERG依赖性癌症的有前途的治疗途径.
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