通过设计二硫化物键来构建坚固的蛋白质纳米,以保护胃环境中的活性货物分子
Chunkai Gu1, Ya'nan Mi1, Tuo Zhang2
1State Key Laboratory of Food Nutrition and Safety and School of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China.
Journal of colloid and interface science
|August 31, 2024
概括
工程化费里纳米与添加的二硫化物键显示在胃中增强的稳定性. 这一突破通过保护货物分子免受降解来改善口服药物输送.
科学领域:
- 生物技术是生物技术.
- 材料科学 材料科学 材料科学
- 药物运输 药物运输 药物运输
背景情况:
- 封装货物的口服管理面临由于恶劣的胃环境而面临的挑战.
- 费里在酸性条件下的自然不稳定性限制了其用于口服药物输送的用途.
研究的目的:
- 为了提高ferritin纳米在胃环境中的稳定性,用于口服.
- 设计强大的费里结构,能够保护封装的生物活性分子.
主要方法:
- 通过计算机辅助设计,在关键的子单元间接口中引入多达96个二硫化物键.
- 人类H链费里和 (Marsupenaeus japonicus) 费里被用作起始材料.
- 晶体结构分析证实了原子层面的设计.
主要成果:
- 两种类型的坚固的费里纳米被生产出来,对酸和蛋白酶 (素和素) 的抗性显著增强.
- 工程纳米成功封装了生物活性货物分子,如多克索鲁比辛.
- 与原生费里相比,在酸性条件下和在消化酶的存在下,证明了对货物泄漏的更好的保护.
结论:
- 设计的费里纳米在胃环境中表现出了显著的稳定性.
- 这项研究提出了一个可行的策略,用于设计和工程蛋白质纳米,以有效的口服.
- 增强的费里结构有可能改善治疗药物和其他生物活性分子的口服输送.
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