双链体协同向抗瘤纳米平台,具有级联响应的药物释放
Fang Luo1,2, Ting Zhong1,2, Ying Chen1,3
1State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmaceutical Sciences, Guizhou Medical University, University Town, Guian New District, Guiyang 550025, China.
Pharmaceutics
|July 29, 2023
概括
一种新的双联体协同向 (DLST) 纳米平台精确地向过度表达两个受体的癌细胞,增强化疗特异性并减少非向性毒性.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术 纳米技术
- 在瘤学瘤学.
背景情况:
- 双联体向纳米平台的目标是提高化疗的特异性.
- 目前的系统由于独立的连接体作用而遭受非目标传递.
- 需要一种新的方法来确保同时针对多个受体.
研究的目的:
- 开发和评估一个双联体协同向 (DLST) 纳米平台,用于精确的癌症化疗.
- 克服现有的双联结系统中非目标交付的局限性.
- 为了实现向药物释放,特别是在过度表达两个不同的受体的癌细胞中.
主要方法:
- 设计了一个DLST纳米平台,包括一个单片氧 (1O2) 光敏剂加载的纳米载体和一个药物加载的1O2响应纳米载体.
- 装饰的纳米载体具有互补的DNA序列和两个不同的配体,用于协同准.
- 研究了DNA杂交诱导的纳米载体聚合和1O2触发的药物释放在光照射后.
- 在体内评估瘤治疗疗效和毒性.
主要成果:
- DLST纳米平台证明了癌细胞的特定内化和聚合,过度表达了两个目标受体.
- 1O2触发的药物释放在两种受体的存在下,在光照射时被特别激活.
- 只有一个受体过度表达的细胞显示出由于1O2.2的有限范围而导致药物释放受阻.
- 在体内研究证实了高度特定的瘤治疗,显著降低了长期毒性.
结论:
- 开发的DLST纳米平台为双受体阳性癌症提供了一个高效和特定的药物输送系统.
- 这种协同向策略有效地减少了非目标效应和相关毒性.
- DLST纳米平台在向癌症化疗中具有显著的临床转化潜力.
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