针对瘤的纳米粒子进行DNA工程可降解隐形
Yan Zhao1,2, Junjun Hou3, Linjie Guo1
1Institute of Materiobiology, College of Sciences, Shanghai University, Shanghai 200444, China.
Journal of the American Chemical Society
|August 28, 2024
概括
科学家们开发了DNA工程隐形 (DEIC) 来防止肝脏的纳米粒子封存. 这种新的方法在体内增强了纳米剂的向输送.
科学领域:
- 生物医学工程
- 纳米技术
- 提供药物
背景情况:
- 纳米粒子 (NP) 输送系统对于癌症治疗和疫苗至关重要.
- 肝脏对NP的封存显著阻碍了向的输送效率.
- 克服肝细胞化对于有效的体内纳米剂输送至关重要.
研究的目的:
- 开发一种由DNA设计的策略来规避肝细胞灭菌.
- 通过一种新的隐蔽方法, 增强瘤向的纳米剂.
- 为了研究DNA工程隐形 (DEIC) 的潜力.
主要方法:
- 用DNA单层覆盖NP以吸附dysopsonin蛋白并诱导肝脏的隐形性.
- 使用可调节的DNA外降解来触发瘤特异性的吸收.
- 在小鼠模型中使用Ag2S量子点和纳米脂质体评估DEIC.
- 使用近红外II成像来量化瘤到肝脏的输送比率.
主要成果:
- 在NP上,DNA单层优先吸附血清松蛋白,使它们在功能上对肝脏无形.
- 通过DNA外的体内降解实现了瘤特异性吸收,降解速度可调节.
- 在Ag2S量子点和纳米脂质体系统中,DEIC的有效性得到了证明.
- 近红外II成像显示瘤与肝脏的比例高达5.1,比传统纳米材料提高了18倍.
结论:
- DNA工程隐形 (DEIC) 有效地绕过了NPs的肝脏封存.
- 这种方法在体内显著增强了瘤向的纳米剂的输送.
- DEIC提供了一种潜在的通用策略,用于高效的毒剂的向输送.
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