埃沃迪胺被氨酸修饰的天性伊米达酸框架-8封装,用于瘤向治疗
Qiang Zhou1, Dandan Xie2, Kui Wang2
1Department of Pharmacy, University-Town Hospital of Chongqing Medical University, Chongqing, 401331, China.
Drug delivery and translational research
|June 28, 2024
概括
埃沃胺 (EVO) 装入氨酸 (HA) 修饰的化物伊米达酸框架-8 (ZIF-8) 纳米颗粒增强了抗瘤功效. 这种新的药物输送系统克服了EVO.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术纳米技术
- 癌症治疗方法 癌症治疗方法
背景情况:
- 埃沃胺 (EVO) 是来自Evodia rutaecarpa的天然化合物,具有抗黑色素瘤的潜力.
- 由于EVO的溶解性和生物可用性较差,因此阻碍了其临床使用.
- 金属有机框架 (MOFs),特别是氧化伊米达酸框架-8 (ZIF-8),由于其稳定性,生物相容性和pH敏感性,它们是有前途的药物输送工具.
研究的目的:
- 为了合成氨酸 (HA) 修饰的ZIF-8纳米颗粒药物载体为Evodiamine (EVO).
- 评估载有EVO纳米粒子 (EVO@ZIF-8/HA) 的药物载荷能力,分散性和体内行为.
- 评估EVO@ZIF-8/HA在恶性黑色素瘤中与自由EVO相比的增强抗瘤功效.
主要方法:
- 用氨酸 (HA) 修改的ZIF-8纳米颗粒的合成.
- 将埃沃胺 (EVO) 装入ZIF-8/HA纳米载体,形成EVO@ZIF-8/HA.
- 药物加载效率 (6.2 ± 0.6%),分散性和表面电荷的表征.
- 在体外和体内对抗瘤功效和瘤细胞吸收的评估.
主要成果:
- 成功合成了具有良好的分散性和6.2 ± 0.6%的药物负载的EVO@ZIF-8/HA纳米颗粒.
- HA修饰将纳米粒子表面电荷逆转为负,改善了血液循环.
- 增强细胞内和积累在CD44过度表达的瘤细胞.
- 与自由EVO相比,EVO@ZIF-8/HA在体外和体内都显示出显著改善的抗瘤疗效.
结论:
- 用氨酸修饰的ZIF-8纳米颗粒有效地封装了Evodiamine,解决了其疏水性和生物可用性问题.
- 开发的纳米药物输送系统通过增强EVO的抗瘤活性来促进向瘤治疗.
- EVO@ZIF-8/HA代表了一种有前途的策略,用于改善Evodiamine在恶性黑色素瘤治疗中的临床应用.
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