在高度血清性卵巢癌中准线粒体翻译和OXPHOS消除了类似干细胞
Aravindan Narayanan1, Souvik Guha1,2, Avinash Mali1
1BRIC-National Centre for Cell Science, Savitribai Phule Pune University, Pune, India.
Cell death & disease
|October 6, 2025
概括
卵巢癌类干细胞利用独特的蛋白质网络进行自我更新,由线粒体活动和代谢转变驱动,即使没有血清. 向线粒体可能提供一种治疗策略,防止瘤复发.
科学领域:
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
- 生物化学 生物化学
背景情况:
- 活体干细胞的维护依赖于无血清条件,以避免有机原体.
- 卵巢癌表现出显著的细胞和分子异质性,从上皮细胞到介质细胞的表型.
- 了解这种异质环境中的类似干细胞的行为,对于有效的治疗至关重要.
研究的目的:
- 在无血清介质中研究不同表型的卵巢癌类干细胞的蛋白质组.
- 识别与茎和线粒体相关的共同和独特的分子通路.
- 探索这些细胞中的代谢适应和潜在的治疗点.
主要方法:
- 使用基于MaxQuant的无标签量化进行蛋白质组分析.
- 在无血清介质中培养具有不同表型的高度血清性卵巢癌细胞系.
- 评估线粒体DNA,生物发生,活动和超结构.
- 研究从糖溶解到氧化酸化的代谢转变.
主要成果:
- 在无血清条件下的所有卵巢癌表型都显示出激活的线粒体和干性相关途径.
- 这些途径中涉及的特定蛋白质是每个细胞表型的独特特征,表明分子异质性.
- 血清饥饿诱导了线粒体DNA,生物发生和活动的增加,将新陈代谢转向脂肪酸氧化.
- 线粒体重塑与调节这些代谢波动有关.
结论:
- 卵巢癌中常见的细胞程序可以通过多种生物网络执行,从而导致分子异质性.
- 卵巢癌类干细胞在血清饥饿下进行代谢适应,增强线粒体功能.
- 准线粒体功能是一个潜在的治疗策略,可以限制瘤再生潜力和复发.
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