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在晚期前列腺癌中通过 σ1受体对癌症干细胞的综合控制
Gianluca Civenni1, Giada Sandrini1,2, Jessica Merulla1
1Institute of Oncology Research (IOR), Università della Svizzera italiana (USI), Bellinzona, Switzerland.
Oncogene
|September 2, 2025
概括
西格玛-1受体 (σ1R) 对于癌症干细胞 (CSC) 的自我更新和瘤生长至关重要. 针对 σ1R 提供了针对耐治疗癌症的新治疗策略.
科学领域:
- 癌症学
- 分子生物学
- 细胞生物学
背景情况:
- 癌症干细胞 (CSC) 导致人类癌症的治疗失败和复发.
- 识别支持中枢细胞的元素对于新的癌症疗法至关重要.
- 割抗性前列腺癌 (CRPC) 存在重大治疗挑战.
研究的目的:
- 调查sigma-1受体 (σ1R) 在CRPC中维持CSC特性中的作用.
- 阐明将σ1R与CSC自我更新和瘤性联系起来的分子机制.
- 在CRPC中探索向σ1R的治疗潜力.
主要方法:
- 在临床前CRPC模型中的功能测试.
- 转录和蛋白质组分析.
- 使用合成抗剂和RNA干扰抑制s1R.
- 临床CRPC样本的分析.
主要成果:
- 在CRPC中,σ1R对CSC自我更新和瘤发生能力至关重要.
- σ1R协调线粒体动力学和线粒体核信号.
- 抑制 σ1R 会导致中枢细胞衰竭和瘤性丧失.
- 这种 σ1R 干扰会影响线粒体平衡,并触发β-catenin 降解.
- 临床CRPC样本显示s1R,线粒体基因表达和β-catenin水平之间的相关性.
结论:
- 在CRPC中,σ1R-线粒体-β-素轴对CSC自我更新和瘤产生至关重要.
- σ1R代表了CSC的一个关键漏洞,可用于新的治疗策略.
- 在前列腺癌中向 σ1R 可能克服治疗耐药性和复发性.
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