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基于铜的生物协调纳米颗粒用于通过氧化调节和糖解抑制增强氧化-氧化癌症免疫疗法
1National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Med-X Center for Materials, Sichuan University, Chengdu, 610064, China.
Small (Weinheim an der Bergstrasse, Germany)
|January 6, 2025
概括
这项研究引入了一种新型纳米粒子 (CKPP),该纳米粒子结合了 pyroptosis 和 cuproptosis 来增强癌症免疫疗法. 在临床前的模型中,CKPP有效地放大氧化应激,并重编程新陈代谢,导致显著的瘤减少.
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:
- 基于铜的纳米颗粒通过诱导氧化应激和cuproptosis显示了癌症治疗的希望.
- 抗瘤疗效受到细胞氧化还原平衡和氧化酸化和糖解之间的代谢转移的限制.
研究的目的:
- 设计一种聚多巴胺涂层的铜α-甲酸 (CKPP) 纳米粒子,用于联合热灭菌-热灭菌癌症免疫治疗.
- 为了放大反应性氧物种 (ROS) 生产和调节细胞代谢,增强抗瘤效果.
主要方法:
- 使用聚多巴胺涂层和铜-α-甲酸协调聚合物合成了CKPP纳米粒子.
- 细胞内氧化还原失衡是通过α-KG介导的线粒体重编程,光热效应和铜离子诱导的谷氨耗尽引起的.
- 细胞代谢从糖解转向氧化酸化.
主要成果:
- CKPP治疗导致细胞内ROS大幅增加,引发氧化应激和热.
- 代谢重编程通过将细胞转移到氧化酸化和抑制糖解来增强cuproptosis.
- 在大肠直肠癌小鼠模型中,CKPP实现了96.3%的瘤抑制率,在40%的病例中完全根除.
结论:
- 开发的CKPP纳米复合材料有效地结合了 pyroptosis 和 cuproptosis,用于强大的癌症免疫疗法.
- 通过调节ROS和细胞代谢,CKPP显示出作为一种生物工程金属有机剂的巨大潜力,用于癌症治疗.
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