通过RB1突变抑制YAP对小细胞肺癌转移至关重要
Zhengming Wu1, Junhui Su2, Fu-Long Li3
1Department of Pharmacology and Moores Cancer Center, University of California, San Diego, La Jolla, CA, 92093, USA.
Nature communications
|September 22, 2023
概括
失去了YAP表达驱动小细胞肺癌 (SCLC) 的转移. 胺HDAC抑制剂恢复YAP,抑制SCLC的传播,并改善小鼠的生存率.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症转移 癌症转移
背景情况:
- 小细胞肺癌 (SCLC) 的特点是由于频繁转移而致死率高.
- 在SCLC中,TP53和RB1的失活突变很常见.
- 驱动SCLC转移的分子机制仍然不完全理解.
研究的目的:
- 研究YAP表达在SCLC转移中的作用.
- 阐明在SCLC中YAP转录的调节机制.
- 确定针对SCLC转移的潜在治疗策略.
主要方法:
- 在SCLC细胞中分析YAP表达.
- 调查YAP目标基因 (CCN1/CCN2) 和它们在迁移中的作用.
- 研究RB1突变,E2F7和RCOR与YAP促进体的复合相互作用.
- 在实验室和小鼠模型中对本扎米德家族HDAC抑制剂的评估.
主要成果:
- 对YAP表达的丧失与SCLC中阿米体迁移和转移潜力的增加有关.
- 通过CCN1/CCN2.2,YAP可以抑制SCLC的阿米体迁移.
- RB1突变导致通过E2F7和RCOR招募对YAP的转录沉默.
- 胺HDAC抑制剂通过向RCOR-HDAC复合体,抑制转移,并改善小鼠的存活率来恢复YAP表达.
结论:
- YAP在抑制SCLC的阿米移动和转移方面发挥着至关重要的作用.
- E2F7/RCOR/Sin3 HDAC复合体在RB1突变的SCLC中调解YAP转录性沉默.
- 胺HDAC抑制剂通过恢复YAP表达和抑制转移,为SCLC提供了一个有前途的治疗策略.
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