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两性碳酸树对脂质模型膜的影响

Dominika Wrobel¹, Antonin Edr², Eliska Zemanova¹

¹Faculty of Science, University of Jan Evangelista Purkyně in Ústí nad Labem, 400 96 Ustí nad Labem, Czech Republic.

Chemistry and physics of lipids

|June 25, 2023

概括

两性树枝与脂质膜相互作用,与负电荷的膜结合更强. 这种相互作用可以破坏膜的稳定并形成集群,显示出基于外体的药物递送系统的潜力.

科学领域:

*纳米医学和分子生物学
* 生物材料科学生物材料科学
* 生物物理生物物理

背景情况:

* 两性树枝是一种新型分子,在纳米医学和药物输送方面具有潜力.
*天然的细胞外囊泡 (外体) 显示出药物输送的前景,但它们复杂的膜带来了相互作用的挑战.
* 混合的外体体 - 龙纳米纤维具有通过小组结合提供向药物递送的优势.

研究的目的:

* 为了研究两性碳酸树 (DDN-1,DDN-2) 和模型脂质膜之间的相互作用机制.
* 了解脂质体表面电荷如何影响树突-膜相互作用.
* 评估树作为修改外体和其他脂质载体的平台.

主要方法:

*采用生物物理方法来确定树突-脂质体相互作用的程度和机制.
* 模型脂质膜 (中性和负电荷) 用于模仿外体生物膜.
*使用了两种类型的两性树枝,DDN-1和DDN-2.

主要成果:

* 树突-脂质体相互作用强度与脂质体表面电荷相关,与负电荷膜的结合更强.
*最初的相互作用涉及表面结合和树突结构的不稳定,负电荷更明显.
* 树突度的增加导致了脂质双层内的疏水相互作用和随后的集群形成.

结论:

* 两性树枝对模型脂质双层具有很高的亲和力,这表明它们适合装饰外体.
*可以形成混合树突-脂质生物膜,有利于药物输送中的功能化后.
*这些发现支持使用树作为针对药物输送和治疗神经应用的平台.

关键词:

两胞性树的树.混合脂质体混合脂质体脂质体是一种脂质体.模型膜的模型膜.自己组装的自组装.

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