来自水的多基纳米载体 ROPISA:在结直肠和乳腺癌模型中的形状依赖性性能
Hannah Beauseroy1, Sabina Quader2, Xueying Liu2
1University of Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France.
Biomaterials
|November 2, 2025
概括
这项研究引入了一种新方法,用于使用环开放聚合诱导自我组装 (ROPISA) 来创建类似的聚类纳米颗粒. 这些纳米颗粒显示出有前途的细胞吸收和体内瘤积累,推进药物输送纳米医学.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术 纳米技术
- 药物运输 药物运输 药物运输
背景情况:
- 聚胺纳米载体对于药物输送至关重要.
- 纳米载体形态对性能的影响尚不清楚.
研究的目的:
- 开发一种用于合成具有不同形态的多化物纳米载体的新方法.
- 为了比较类似虫和球形纳米载体的细胞吸收和体内生物分布.
主要方法:
- 通过一阶段的水性环开放聚合诱导的自组合 (ROPISA) 的γ-基-l-酸盐N-碳素化物 (BLG-NCA) 合成光虫样纳米粒子.
- 使用溶剂移位制备的球形类似物.
- 在CT26和4T1癌细胞系 (2D和3D球形) 中评估了纳米粒子内部化.
- 在小鼠模型中评估了体内生物分布和瘤积累.
主要成果:
- 类似虫的和球形的纳米粒子都被癌细胞有效地内化.
- 在CT26细胞中观察到更快的吸收,而在4T1细胞中则发生更高的积累.
- 纳米粒子穿透了3D球体,在4T1球体中扩散速度较慢,但最终积累率更高.
- 在体内研究显示血液循环延长和瘤积累显著,特别是在4T1瘤中.
结论:
- NCA 的 ROPISA 是一个多功能平台,用于创建聚胺纳米载体.
- 纳米粒子形态影响细胞吸收和瘤积累动态.
- 这些发现支持开发先进的纳米药物用于向药物输送.
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