谷氨编程的现场催化剂自组装激活了瘤特异性的NO风暴,用于气动力学治疗
Chundong Yao1, Jia Liu2, Miaodeng Liu1
1Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
Journal of colloid and interface science
|August 3, 2025
概括
这项研究引入了一个新的金属有机框架,CuSNP,用于向氧化物 (NO) 在瘤中的输送. 它有效地在癌细胞内产生NO和活性氧物种,增强瘤抑制,提高安全性.
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
- 在瘤学瘤学.
背景情况:
- 氧化 (NO) 在癌症中显示出治疗潜力,但在精确的输送和毒性方面面临挑战.
- 瘤微环境具有高谷氨 (GSH),可以用于向药物释放.
研究的目的:
- 开发一种对谷氨敏感的金属有机框架 (CuSNP),用于瘤特定的氧化生成.
- 通过同时释放活性氧物种来增强癌细胞对NO治疗的敏感性.
主要方法:
- 使用和铜离子构建一个对GSH敏感的金属有机框架 (CuSNP).
- 在瘤细胞内通过Cu-GSH复合形成局部催化剂.
- 同时产生NO和基 (·OH),由细胞内GSH触发.
主要成果:
- 在高水平的GSH存在时,CuSNP会分解,释放出化和铜离子.
- 在现场形成的Cu-GSH复合物催化了NO的突发释放和H2O2分解为OH.
- NO和OH的联合作用有效地抑制了瘤生长,并具有全身安全性.
结论:
- CuSNP提供了一个平台,用于精确的,瘤特异性的NO和反应性氧物种的生成.
- 这种方法克服了基于NO的癌症治疗方面的挑战,为临床转化提供了一个有希望的策略.
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