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Updated: Jun 24, 2025

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原子分散的双金属活性点作为H₂O₂自供应的纳米酶,用于有效的化学动力学疗法,化疗和饥饿疗法

Yan-Wen Mao¹, Kai-Fei Chu², Pei Song³

¹Key laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, College of Life Science, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.

Biomaterials advances

|June 11, 2024

概括

这项研究引入了一种新型纳米酶 (FeCo/PCP-GOx-DOX),可以将葡萄糖转化为基基,增强癌症治疗. 这种方法通过克服瘤中低水平的过氧化来提高化学动力学治疗 (CDT) 的疗效.

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:

化学动力学治疗 (CDT) 的有效性受到瘤微环境 (TME) 中细胞内过氧化 (H2O2) 不足的限制.
现有的策略需要高的H2O2水平来有效治疗瘤,这对CDT构成了重大挑战.

研究的目的:

设计一种新的纳米酶系统,以克服TME中的H2O2缺乏,以增强CDT.
开发一种综合饥饿疗法,CDT和化疗的多模式治疗策略.

主要方法:

原子分散的FeCo双活性位点在多孔碳多面体 (FeCo/PCP) 中固定.
在FeCo/PCP中加载了葡萄糖氧化酶 (GOx) 和多克索鲁比辛 (DOX) 来产生FeCo/PCP-GOx-DOX.
在不同的葡萄糖度下评估了体外细胞毒性,以评估H2O2生成和CDT的有效性.

主要成果:

FeCo/PCP-GOx-DOX纳米酶有效地将葡萄糖转化为有毒的基 (•OH).
在高葡萄糖条件下观察到增强的体外细胞毒性,这表明有效的H2O2积累和OH生成.
综合系统通过结合饥饿,CDT和化疗,与单一疗法相比,显示出更高的治疗效果.

结论:

开发的FeCo/PCP-GOx-DOX纳米酶为改善CDT提供了一种有前途的策略,用于解决H2O2缺乏问题.
这种多模式的方法显示出通过协同治疗效应来提高抗瘤疗效的巨大潜力.

关键词:

级联催化反应的催化剂.化学动力学疗法是一种化学动力学疗法.双重活跃的网站.纳米酶纳米酶是一种纳米酶.有协同效应的效应.

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