含有橄铜的酸纳米颗粒促进了线粒体蛋白质的化,用于增强缩症治疗
Ying Chen1,2, Junyu Wang1,2, Yaya Zheng1,2
1The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province (The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province and The High Educational Key Laboratory of Guizhou Province for Natural Medicinal Pharmacology and Druggability) & School of Pharmaceutical Sciences, Guizhou Medical University, No. 6 Ankang Avenue, Guian New District, Guiyang, Guizhou, 561113, China.
研究人员开发了装有铜的向纳米颗粒,以增强细胞死亡的一种形式cuproptosis. 这些纳米颗粒有效地促进DLAT蛋白的脂化,从而在临床前模型中显著抑制瘤,并提高了安全性.
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:
- 型亡是一种依赖铜的细胞死亡途径,涉及二利胺 S-乙转移酶 (DLAT).
- 细胞铜水平受到严格监管,这对治疗应用提出了挑战.
- 有针对性的输送系统对于提高金属基疗法的疗效至关重要.
研究的目的:
- 开发新型的含有氧铜的脂酸纳米颗粒 (Cu@TcNAs) 用于向性杯症治疗.
- 为了研究DLAT蛋白的增强型脂解和随后由Cu@TcNAs诱导的cuproptosis.
- 评估Cu@TcNAs的体外和体内治疗疗效和生物安全性.
主要方法:
- 合成和表征基甲基胺向的酸纳米颗粒装载有氧铜 (Cu@TcNAs).
- 在HepG2和4T1癌细胞中评估细胞吸收,DLAT蛋白质化和cuproptosis诱导.
- 在相关小鼠模型中评估体内瘤抑制率和生物安全性.
主要成果:
- Cu@TcNAs表现出细胞吸收增加和显著增强的DLAT蛋白质化 (HepG2的1.86倍,4T1细胞的1.52倍).
- 在具有较低IC50值的癌细胞中,Cu@TcNAs诱导了强烈的cuproptosis (12.50μg mL-1用于HepG2,8.70μg mL-1用于4T1).
- 在体内研究显示显著的瘤抑制 (74.32%在HepG2,84.87%在4T1) 在低铜剂量 (0.27毫克每公斤-1).
结论:
- 向的Cu@TcNAs有效地促进DLAT脂化,并诱导增强癌症治疗的cuproptosis.
- 与现有方法相比,开发的纳米粒子表现出优越的疗效和生物安全性.
- Cu@TcNAs在开发新型癌症治疗方面具有显著的临床潜力.
更多相关视频
08:53Using Scaffold Liposomes to Reconstitute Lipid-proximal Protein-protein Interactions In Vitro
Published on: January 11, 2017
10:39Author Spotlight: Improved Lipofuscin Models and Quantification of Outer Segment Phagocytosis Capacity in Highly Polarized Human Retinal Pigment Epithelial Cultures
Published on: April 14, 2023
相关概念视频
COP Coated Vesicles
Translocation of Proteins into the Mitochondria
Sorting of outer membrane proteins:
Mitochondrial outer membrane proteins are of two types: the transmembrane, beta-barrel porins, and the membrane-anchored, alpha-helical proteins. Beta-barrel porin precursors are translocated by the TOM complex and inserted into the outer mitochondrial membrane by the SAM complex. In contrast,...
Electron Transport Chain: Complex I and II
ROS generation is regulated and maintained at moderate levels necessary...
Mitochondrial Precursor Proteins
Most of the mitochondrial...
Lipid Catabolism
