氨基基基聚合物是细胞内pDNA,mRNA和Cas9蛋白质输送的多功能和有效载体
Punarbasu Roy1, Nicholas W Kreofsky1, Theresa M Reineke1
1Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States.
Biomacromolecules
|September 26, 2024
概括
基因基聚合物在提供基因医学有效载荷方面表现出多样性,例如等离子体DNA,mRNA和Cas9-sgRNA复合体. 这些新型载体为现有的传染剂提供了有希望的替代品,特别是在富含血清的条件下.
科学领域:
- 生物材料科学 生物材料科学
- 基因治疗 基因治疗
- 聚合物化学 聚合物化学
背景情况:
- 基于素的聚合物已经通过静电和非静电相互作用在输送等离子体DNA (pDNA) 中表现出有效性.
- 与pDNA相比,信使RNA (mRNA) 和Cas9-ribonucleoprotein (Cas9-sgRNA) 复合体代表了具有独特特性的先进治疗方式.
研究的目的:
- 评估因基聚合物的多功能性,以传递mRNA和Cas9-sgRNA复合体.
- 为了研究不同核酸有效载荷的各种因基聚合物配方中的结构-活性关系.
- 在富含血清的环境中评估性能,这是基因传递的一个常见挑战.
主要方法:
- 合成了7种基因基聚合物的库,具有各种各样的单体结构和组成.
- 进行了广泛的配方选,测试了42种配方的pDNA,96种mRNA和48种Cas9-sgRNA.
- 对每个配方的有效载荷-聚合物复合和细胞传递效率进行了评估.
主要成果:
- 几种因基聚合物配方的转化性能与商业标准jetPEI相当或超过.
- 该研究确定了依赖有效载荷的结构-活性关系,突出了这些聚合物的适应性.
- 对于结构不同的核酸有效载荷,包括mRNA和Cas9-sgRNA复合体,已证明有效的传递.
结论:
- 氨基基基聚合物代表了提供多种核酸治疗药物的多功能平台.
- 这些聚合物显示出解决遗传医学中药物输送挑战的巨大潜力.
- 这些发现支持开发因基聚合物作为下一代基因传递载体.
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