为组织工程应用优化将mRNA传递给介质细胞干细胞
Katie McCormick1,2, Jorge Moreno Herrero3, Heinrich Haas3
1Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, RCSI, Dublin D02 YN77, Ireland.
Molecular pharmaceutics
|March 20, 2024
概括
优化信使RNA (mRNA) 传递到介质干细胞 (MSC) 是组织工程的关键. 基于脂质的载体和修改的mRNA (modRNA) 显示出优越的蛋白质表达和高效的输送,为先进的再生医学铺平了道路.
科学领域:
- 生物技术和再生医学 生物技术和再生医学
- 在治疗中纳米技术.
- 细胞和分子工程 细胞和分子工程
背景情况:
- 使者RNA (mRNA) 为组织工程提供了暂时的治疗性蛋白质生产.
- 介质细胞干细胞 (MSC) 难以转移,这对mRNA输送构成了挑战.
- 优化非病毒载体对于MSC中有效的mRNA吸收至关重要.
研究的目的:
- 系统地选非病毒载体,以获得最佳的mRNA传递给MSCs.
- 为了比较MSC中未修改的mRNA (uRNA),基基修改的mRNA (modRNA) 和自我放大的mRNA (saRNA) 的蛋白质表达.
- 评估用于组织工程应用的mRNA输送系统.
主要方法:
- 使用各种基于聚合物和脂质的非病毒载体封装mRNA.
- 物理化学性质的表征,包括粒子大小,电荷和封装效率.
- 在体外评估MSC的转染效率,蛋白质表达和细胞毒性.
主要成果:
- 基于脂质和聚合物的载体都成功地形成了纳米大小的mRNA粒子 (<200nm).
- 基于脂质的载体在2D和3D支架上以最小的细胞毒性向MSC提供了卓越的mRNA传递.
- 修改后的mRNA (modRNA) 产生显著更高的蛋白质表达 (1.2倍与rRNA相比,5.6倍与saRNA相比).
结论:
- 已经实现了对mRNA向MSCs的优化非病毒传递.
- 选择mRNA类型 (modRNA) 对于最大化蛋白质表达至关重要.
- mRNA对先进的组织工程策略具有显著的潜力.
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