聚乙烯微塑料通过NF-κB激活抑制铁质通过抑制肺癌诱导放射治疗抵抗
Heng Zhou1,2,3, Yali Liu4, Yanxian Ren1,3
1School of Basic Medical Sciences & School of Public Health, Yangzhou University, Yangzhou, China.
Antioxidants & redox signaling
|November 5, 2025
概括
聚乙烯微塑料 (PS-MPs) 通过通过NF-κB通路激活阻断铁化来降低肺癌放射治疗的有效性. 这项研究揭示了PS-MP作为影响癌症治疗结果的环境因素.
科学领域:
- 在瘤学瘤学.
- 环境科学 环境科学
- 细胞生物学 细胞生物学
背景情况:
- 聚烯微塑料 (PS-MPs) 是一种环境污染物,对癌症治疗有未知的影响.
- 铁和NF-κB通路对于癌症的进展和治疗反应至关重要.
研究的目的:
- 调查PS-MPs对肺癌放射治疗疗效的影响.
- 阐明PS-MPs在ferroptosis调节和肺癌中NF-κB通路激活中的作用.
主要方法:
- 肺癌细胞和小鼠暴露于PS-MPs.
- 细胞增殖,线粒体形态和铁亡标记物的评估.
- 转录组分析以确定通路激活.
- 对NF-κB通路进行操纵 (敲击),以确认机制.
- 在体内评估瘤生长和生存率.
主要成果:
- PS-MPs被肺癌细胞内化并促进了扩散.
- 通过抑制脂质过氧化和谷氨耗尽,PS-MPs减弱了辐射诱导的铁亡.
- PS-MPs激活了NF-κB通路,增加了其信号组件.
- 在体内研究表明,PS-MPs降低了放射治疗的疗效,增加了瘤负担并降低了存活率.
- 抑制NF-κB恢复了铁灭的敏感性,并逆转了PS-MPs诱导的放射电阻.
结论:
- PS-MPs通过通过NF-κB激活抑制ferroptosis损害了肺癌放射治疗.
- 这项研究突出显示了微塑料作为氧化还原恒温的环境破坏者的瘤影响.
- 研究结果表明,微塑料可能会影响癌症治疗的耐药性,因此需要在环境瘤学领域进行进一步的研究.
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