通过Catechol-Amine-Derived Coacervation与它们的底层界面机制进行工程基于蛋白质的脂质结合纳米纤维
Haibing Yang1, Yao Song2, Qiang Zhang2
1Department of Stomatology, The Second People's Hospital of Changzhou, The Third Affiliated Hospital of Nanjing Medical University, Changzhou Medical Center, Nanjing Medical University, Changzhou 213164, China.
Langmuir : the ACS journal of surfaces and colloids
|February 2, 2025
概括
通过使用甲基醇-胺相互作用设计的原胺纳米纤维. 添加铁离子增强了囊泡-脂质相互作用,为非脂纳米囊泡的细胞向输送提供了洞察力.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术纳米技术
- 表面化学 表面化学
背景情况:
- 非脂纳米纤维比传统的脂质体具有优势,蛋白质/基版本显示免疫性降低和增强的生物活性.
- 了解蛋白质-脂质和蛋白质-膜相互作用对于开发有效的纳米微粒输送系统至关重要.
- 现有知识缺口存在于管理这些相互作用的基本机制.
研究的目的:
- 通过调节分子内甲基醇-胺相互作用来设计基于质胺的非脂纳米纤维.
- 为了研究植入甲基醇 (CA) 和三基 (GA) 组到质氨酸 (Prot) 上对囊泡形成和特性的影响.
- 阐明铁(III) 离子 (Fe3+) 在增强纳米纤维-脂质相互作用和细胞膜相互作用中的作用.
主要方法:
- 蛋白质胺被修改为甲基醇 (CA) 和三基 (GA) 组.
- 在性环境中使用盐触发的协,形成纳米微粒 (200-1200 nm).
- 用脂泡力测量和表面电荷差异映射来研究纳米机理和细胞相互作用.
主要成果:
- 基于蛋白质胺的纳米纤维已经成功地设计了可调节尺寸.
- 与甲基醇修饰和Fe3+添加 (Prot-CA-Fe3+ > Prot-CA > Prot) 增加了对脂质接口的结合亲和力.
- 微量Fe3+通过catechol-amine和Fe3+-complexation协同作用显著增强了纳米纤维-脂质相互作用,改善了与人类牙纤维细胞的相互作用.
结论:
- 分子内甲醇-氨基相互作用为设计基于蛋白质的纳米微粒提供了有效的策略.
- 铁离子复合可以显著增强这些纳米纤维与脂质接口和细胞膜的相互作用.
- 这项研究为纳米纤维细胞膜相互作用提供了宝贵的见解,并为调节向传递提供了一个范式.
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