Wan Yichen, Chen Junge, Li Jiaxuan, Chen Zelong, Wang Yi, Li Jiahui, Pei Zhichao, Pei Yuxin
College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, PR China.
Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical Engineering, School of Engineering Medicine, Beihang University, Beijing 100083, PR China.
Colloids Surf B Biointerfaces. 2025 Jan;245:114196. doi: 10.1016/j.colsurfb.2024.114196. Epub 2024 Sep 3.
Apoptotic resistance of tumor often leads to poor efficacy from mono-therapy based on apoptosis. Cuproptosis, a new type of non-apoptotic cell death related to mitochondrial dysfunction, can alter metabolism and enhance ferroptosis, providing a promising strategy for effective synergistic cancer treatment. In this work, Cu-based nanoparticles (denoted as HA-ZCu) were successfully developed to improve anti-tumor efficacy by combining cuproptosis with enhanced ferroptosis, which was achieved by cuproptosis-induced glutathione synthesis disorder. In vitro studies revealed that HA-ZCu effectively induced cuproptosis and ferroptosis in HepG2 cells. Moreover, HA-ZCu induced mitochondrial dysfunction and decreased intracellular adenosine triphosphate (ATP), glutamate, and glutathione, demonstrating the effective synergy. In vivo studies further approved the synergistic therapeutic efficacy of HA-ZCu, where the inhibition rate of tumor growth reached 83.2 %. This work represents the first example of enhanced anti-tumor efficacy via cuproptosis and ferroptosis synergy through cuproptosis-induced glutathione synthesis disorder.
肿瘤的凋亡抗性常常导致基于凋亡的单一疗法疗效不佳。铜死亡是一种与线粒体功能障碍相关的新型非凋亡性细胞死亡,它可以改变代谢并增强铁死亡,为有效的癌症协同治疗提供了一种有前景的策略。在这项工作中,通过铜死亡诱导的谷胱甘肽合成紊乱,成功开发了铜基纳米颗粒(记为HA-ZCu),以通过结合铜死亡和增强的铁死亡来提高抗肿瘤疗效。体外研究表明,HA-ZCu能有效诱导HepG2细胞发生铜死亡和铁死亡。此外,HA-ZCu诱导线粒体功能障碍并降低细胞内三磷酸腺苷(ATP)、谷氨酸和谷胱甘肽水平,证明了有效的协同作用。体内研究进一步证实了HA-ZCu的协同治疗效果,其肿瘤生长抑制率达到83.2%。这项工作是通过铜死亡诱导的谷胱甘肽合成紊乱实现铜死亡与铁死亡协同增强抗肿瘤疗效的首个实例。
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