pH激活的金属有机层纳米酶用于ferroptosis瘤治疗
Deyan Gong1, Lu Liu2, Ziwen Xiao3
1School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China; Sinopharm Group Guorui Pharmaceutical Co. LTD, Huainan 232001, China.
Journal of colloid and interface science
|November 16, 2024
概括
二维纳米酶 (nMOLs) 通过增加反应性氧物种 (ROS) 生成以改善化学动力学治疗和铁灭诱导,显示出增强的瘤杀伤能力. 这些纳米酶显示出更安全,更有效的癌症治疗的前景.
科学领域:
- 生物医学工程 生物医学工程
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
背景情况:
- 纳米酶在瘤治疗中表现有前途,但在复杂的瘤微环境中的催化活性和生物安全性受到限制.
- 提高纳米酶的催化效率对于开发高性能抗癌剂至关重要.
- 将纳米金属有机框架 (nMOF) 的尺寸缩小为纳米金属有机层 (nMOL) 可以改善纳米酶基底相互作用和活性氧物种 (ROS) 扩散.
研究的目的:
- 合成和评估2D纳米酶 (nMOLs) 来自3D纳米酶 (nMOFs) 来增强瘤治疗.
- 研究He@Ce-BTB nMOLs增强的ROS催化效率和瘤杀伤机制.
- 在体外和体内评估He@Ce-BTBnMOLs的生物安全性和治疗潜力.
主要方法:
- 使用溶热反应合成He@Ce-BTC nMOF和He@Ce-BTB nMOL.
- 合成的2D纳米酶的表征和其ROS催化效率的评估.
- 在酸性瘤微环境中评估聚合酶模拟活性 (CAT,POD,GSH-OXD) 和铁灭症诱导.
- 在体外和体内研究评估治疗疗效和生物安全性.
主要成果:
- 与其3D对应物 (He@Ce-BTC nMOF) 相比,2D He@Ce-BTB nMOL显著提高了ROS催化效率.
- He@Ce-BTB nMOL 显示出聚合酶模拟活性,有效促进脂质过氧化和加速瘤细胞中的铁亡. 在酸性微环境中.
- 2D纳米酶在体外和体内表现出极好的治疗效果,没有观察到对正常组织细胞的毒性,避免了扩散诱导的副作用.
结论:
- 将尺寸缩小到2D nMOLs可以提高瘤治疗中纳米酶的性能.
- He@Ce-BTB nMOLs通过利用瘤微环境进行向性铁灭诱导,为有效和安全的癌症治疗提供了一个有希望的策略.
- 这些发现突显了He@Ce-BTB nMOLs作为新一代临床应用抗癌药物的潜力.
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