对天然有效的脂质纳米颗粒冠状体的多组学分析显示,高密度脂蛋白是其功能所必需的
Kai Liu1, Ralf Nilsson2, Elisa Lázaro-Ibáñez1
1Advanced Drug Delivery, Pharmaceutical Sciences, R&D, AstraZeneca, Gothenburg, Sweden.
Nature communications
|July 6, 2023
概括
在脂质纳米粒子 (LNP) 生物冠状体中的高密度脂蛋白 (HDL) 预测了体内输送的有效性. 这一发现为通过优化冠状元组成来增强LNP治疗方法提供了一个框架.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术 纳米技术
- 药理学 药理学是指药理学的学科.
背景情况:
- 脂质纳米颗粒 (LNP) 组成,传递效率及其相关生物冠状体之间的关系尚不清楚.
- 生物冠状病毒的组成在体内显著影响了LNP的表现.
- 目前分析LNP-生物冠状病毒相互作用的方法往往很费力,并且缺乏吞吐量.
研究的目的:
- 研究LNP周围形成的自然有效生物冠状体的组成.
- 通过控制生物冠状元的组成,建立一个改善LNP治疗疗效的框架.
- 确定与体内输送性能相关的关键生物冠状元件.
主要方法:
- 开发了一个公正的查工作流程来分析LNP-biocorona复合体.
- 复杂的LNP与来自瘦或肥胖大鼠的血,并在体外评估.
- 利用一种快速的,自动化的方法来检索完整的LNP-biocorona复合体.
- 从单个血样本进行了多组学分析,以确定生物冠的组成.
主要成果:
- 最有效的LNP-biocorona复合物被丰富了高密度脂蛋白 (HDL).
- 与Apolipoprotein E (ApoE) 相比,生物冠状体中的HDL含量是体内活性的优越预测指标.
- 揭示了HDL作为LNP生物冠状病毒中ApoE来源的新型作用.
结论:
- 高密度胆固醇是LNP输送效率的关键决定因素.
- 控制LNP生物冠组成,特别是HDL含量,可以提高治疗结果.
- 开发的方法为合理的LNP设计和优化提供了基础.
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