通过以雌激素依赖的方式调节PTEN稳定性,SIRT7促进子宫内膜癌的进展
Zhiyi Hu1, Ming Tang2, Yujia Huang1
1Department of Gynecology, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, China.
Nature communications
|March 28, 2025
概括
SIRT7去乙化并降解瘤抑制剂PTEN,促进子宫内膜癌 (EC) 的转移. 向雌激素-SIRT7-PTEN通路可能为EC提供新的治疗策略.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 妇科癌症 妇科癌症
背景情况:
- 子宫内膜癌 (EC) 的预后不好,转移驱动因素不明.
- 雌激素信号传递和PTEN无活化是关键的EC风险因素,但它们的相互作用尚不清楚.
研究的目的:
- 研究SIRT7在子宫内膜癌进展和转移中的作用.
- 在EC中阐明链接雌激素信号,SIRT7和PTEN的分子机制.
主要方法:
- 在EC患者和小鼠模型中评估SIRT7表达.
- 研究了SIRT7对体外和体内EC细胞进展的影响.
- 检查了SIRT7介导的PTEN脱乙化,无化和降解.
- 相关的SIRT7表达与基于PTEN状态的患者存活率.
主要成果:
- 在EC中SIRT7被上调,促进瘤的进展和转移.
- 在K260中对PTEN的雌激素依赖的SIRT7脱乙化促进了其通过NEDD4L的无处化和降解.
- 在EC患者中,SIRT7表达与野生型PTEN的生存率差相关.
结论:
- 通过促进PTEN降解,SIRT7促进了EC转移.
- 针对雌激素-SIRT7-PTEN轴为EC提供了一个潜在的治疗策略.
- 通过这一轴恢复PTEN丰富性可以改善EC治疗结果.
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