生物矿物化RuO2纳米酶具有多酶活性,用于超声波触发的过氧化提升的铁灭症
Shikai Liu1, Wenting Li1, He Ding1
1Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China.
Small (Weinheim an der Bergstrasse, Germany)
|July 11, 2023
概括
这项研究引入了一种新型的纳米粒子,用于超声波触发的铁亡 (癌细胞死亡途径),通过产生过氧酸来提高癌症治疗的有效性.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术 纳米技术
- 癌症治疗 癌症治疗
背景情况:
- 铁亡是一种非亡性细胞死亡途径,对癌症具有治疗潜力.
- 铁质的临床应用受到由于细胞内调节导致的低效率的限制.
- 需要新的策略来克服这些局限性并增强ferroptosis诱导.
研究的目的:
- 设计和制造超声波触发的纳米粒子用于过氧酸介导的铁灭.
- 通过克服内在调节途径来增强癌细胞死亡.
- 开发一种卓越的治疗范式,用于癌症中的铁灭敏感化.
主要方法:
- 开发了e6 (Ce6) 和N-乙-l-氨酸结合的牛血清白蛋白-二氧化 (BCNR) 纳米颗粒.
- 利用超声波来触发从Ce6和RuO2.2中单点氧气的产生.
- 利用RuO2的模仿活动和氧化释放以形成过氧化和减少谷氨.
主要成果:
- 超声波刺激有效地产生单片氧,该氧被RuO2.2放大.
- 氧化释放和单点氧反应形成了细胞毒性过氧.
- 通过抑制其再生,BCNR纳米颗粒耗尽了谷氨 (GSH),增强了铁亡.
结论:
- 开发的BCNR纳米粒子系统有效诱导过氧酸介导的铁亡.
- 这种方法克服了细胞内调节,从而提高了ferroptosis敏感性.
- 通过增强的铁灭,为晚期癌症治疗提供了一个有前途的策略.
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