在前列腺癌中,HIF1α-PHD1-FOXA1轴调节缺氧重编程和雄激素信号抑制
Limiao Liang1, Dandan Dong1, Jiaxue Sun1
1MOE Key Laboratory of Metabolism and Molecular Medicine, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University Shanghai Cancer Center, Shanghai Medical College of Fudan University, Shanghai 200032, China.
Cells
|July 11, 2025
概括
前列腺癌的缺氧通过HIF1α-PHD1-FOXA1轴扰乱了基因程序. 这一途径将低氧气与癌症进展联系在一起,并提供了新的治疗点.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症研究 癌症研究
背景情况:
- 缺氧是侵袭性前列腺癌的一个关键特征.
- 缺氧通过改变转录程序驱动前列腺癌进展的机制尚未完全理解.
研究的目的:
- 确定将低氧与前列腺癌进展联系起来的分子机制.
- 调查HIF1α-PHD1-FOXA1轴在低氧适应和雄激素信号抑制中的作用.
主要方法:
- 全基因组分析分析低氧条件下的HIF1α染色质占用率.
- 同免疫沉测试以评估HIF1α和FOXA1.1之间的物理相互作用.
- 对雄激素反应和缺氧诱导基因表达的评估.
- 对破坏HIF1α-PHD1-FOXA1轴对前列腺癌细胞行为的影响的评估.
主要成果:
- 缺氧会重新编程HIF1α,使其与FOXA1合作,而不是AR.
- HIF1α与FOXA1发生物理相互作用,从而通过PHD1介导的基化使其不稳定.
- 缺氧下FOXA1的损失减弱了雄激素信号传递,并激活了缺氧诱导基因.
- 破坏HIF1α-PHD1-FOXA1轴会抑制前列腺癌细胞的增殖和迁移.
结论:
- HIF1α-PHD1-FOXA1轴是前列腺癌中缺氧适应的关键调解器.
- 依赖氧气的FOXA1降解将微环境压力与晚期前列腺癌的转录性变化联系起来.
- 针对这一轴,为前列腺癌提供了一个有前途的治疗策略.
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