植物细胞启发的结肠向货物输送系统具有双触发释放机制
Anran Mao1, Anna C Gebhard2, Nazanin Z Ezazi2
1Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56, 100 44 Stockholm, Sweden.
Science advances
|May 14, 2025
概括
研究人员为口服药物开发了以植物细胞为灵感的输送系统. 这些新型系统提供灵活的封装和在胃肠道中控制释放,为先进的药物输送铺平了道路.
科学领域:
- 生物材料科学 生物材料科学
- 药物输送系统 药物输送系统
- 纳米技术 纳米技术
背景情况:
- 植物细胞为口服药物输送提供了独特的特性.
- 目前用于植物药物生产的方法仅限于蛋白质,需要基因修饰.
- 开发通用和高效的口服输送系统仍然是一个重大挑战.
研究的目的:
- 用自下而上的组装方法设计植物细胞启发的传递系统.
- 创建能够封装各种治疗剂的系统,包括非蛋白质化合物和纳米粒子.
- 为了在胃肠道内实现受控和刺激反应的药物释放.
主要方法:
- 利用纤维素纳米纤维和脂质层来构建模仿植物细胞屏障的分层外.
- 在系统制造中采用了自下而上的组装策略.
- 在模拟的胃肠道条件下评估了外结构对酸性降解的抵抗力和对刺激有反应性的释放机制.
- 使用Caco-2细胞化评估细胞相容性.
主要成果:
- 成功设计了以植物细胞为灵感的输送系统,使用纤维素纳米纤维外和脂质层.
- 展示了层层的外结构对酸性降解的抵抗力.
- 在对模拟胃肠道刺激的反应中观察到尺寸依赖的双触发释放机制.
- 证实了与Caco-2细胞的细胞相容性.
结论:
- 开发的生物灵感传递系统提供了一个灵活的平台,用于封装各种治疗有效载荷.
- 这些系统在胃肠道中表现出受控的,多站点特定的释放.
- 这种方法为口服药物输送应用提供了一个低成本,可持续和下一代的替代方案.
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