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通过脂质纳米粒子介导的微RNA-124的输送可以减少神经炎症

Zhanjun Ma¹, Hong Anh Dang², Jingjing Yang³

¹Louvain Drug Research Institute, Advanced Drug Delivery and Biomaterials, Université Catholique de Louvain, UCLouvain, 1200, Brussels, Belgium; Louvain Drug Research Institute, Bioanalysis and Pharmacology of Bioactive Lipids, Université Catholique de Louvain, UCLouvain, 1200, Brussels, Belgium.

|August 3, 2025

概括

我们开发了一种新的微RNA-124 (miR-124) 的脂质纳米粒子 (LNP) 传递系统,用于治疗神经炎症. 这个系统有效地减少了大脑的炎症,为神经退行性疾病提供了有前途的新疗法.

科学领域:

神经科学是一个神经科学.
生物技术是生物技术.
药理学药理学是指药理学的学科.

背景情况:

微RNAs (miRNAs) 是细胞过程的关键调节者,对神经炎症疾病有影响.
慢性神经炎症是神经退行性疾病的标志,缺乏有效的治疗干预措施.
外源的miRNA输送,如miRNA-124 (miR-124),显示出可能对微质中的抗炎作用的潜力.

研究的目的:

开发和优化脂质纳米粒子 (LNP) 配方,以有效地将miR-124输送到中枢神经系统 (CNS).
评估miR-124载荷的LNP在试验室和体内调节神经炎症方面的疗效.

主要方法:

对各种可电离脂质进行选,以确定miR-124.4的最佳LNP配方.
用miR-124-LNP对BV2和初级质细胞进行体外转染,以评估基因表达.
在微生物中通过局部和静脉输入的路径给药miR-124-LNPs在脂多糖 (LPS) 诱导的神经炎症小鼠模型.

主要成果:

一种优化的LNP配方 (S-Ac7-DOG) 在细胞吸收,转染和炎症调节方面表现出高效率.
在质细胞中,miR-124-LNP治疗降低了促炎基因的调节,提高了抗炎基因的调节.
在体内研究显示,在 miR-124-LNP 给药后,中枢神经系统中,促炎性细胞因子减少,抗炎性细胞因子增加.

结论:

脂质纳米颗粒 (LNP) 代表了中枢神经系统中miRNA治疗药物的临床可翻译,非病毒传递系统.
开发的miR-124-S-Ac7-DOG LNP配方有效地准并减少神经炎症.
这项研究为针对神经炎症疾病的基因治疗策略提供了一个多功能平台.

关键词:

可电离的双碳酸盐脂质可离子化脂质是可以离子化的脂质.脂质纳米颗粒的使用方法微流体学微流体学微质细胞中的微质细胞配送RNA配送RNA的时间这是一个微型RNA.

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