通过核心和表面载荷传递双重mRNA的新型脂聚复合平台
Aljoscha Gabelmann1, Elham Mansouri-Ghahnavieh2, Marcus Koch3
1Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz-Centre for Infection Research (HZI), Campus E8.1, 66123 Saarbrücken, Germany; Department of Pharmacy, PharmaScienceHub (PSH), Saarland University, 66123 Saarbrücken, Germany.
概括
这项研究引入了新的核心脂复合体 (LPPs),用于共同输送多个核酸,克服了先进基因疗法的当前脂质纳米颗粒的局限性.
科学领域:
- 生物技术是生物技术.
- 纳米医学是一种纳米医学.
- 聚合物科学 聚合物科学
背景情况:
- 最近对纳米颗粒核酸疗法的批准突出显示了输送系统的进步.
- 像CRISPR/Cas9这样的基因疗法和癌症免疫疗法需要同时输送多个核酸.
- 目前的脂质纳米颗粒在联合封装和管理核酸相互作用方面面临着挑战.
研究的目的:
- 设计一个核心外系统,用于单独封装两个核酸.
- 开发一种用于先进核酸输送的两步制剂过程.
- 为了创建超越脂质纳米粒子限制的脂质聚合体 (LPP).
主要方法:
- 通过组合六种阴离子和三种阳离子聚合物,合成了18种不同的核心成分.
- 选配方以识别强烈的脂多复合体 (LPPs).
- 对传染效率,表达动力学,存储稳定性和雾化性能进行评估的LPP.
主要成果:
- 确定了聚-L-氨酸和聚-L-谷氨酸作为LPP的最佳组合.
- 实现了两个模型信使RNA (mRNA) 在受控比率的精确联合交付.
- 证明表面载荷mRNA与核心载荷mRNA相比,表现出更高的转染效率和剪切阻力.
结论:
- 开发了一种新的核心外LPP系统,用于控制多个核酸的联合输送.
- 聚-L-氨酸/聚-L-谷氨酸LPP显示出高级治疗应用的巨大潜力.
- 在LPP内部的mRNA定位极大地影响了转染效率和稳定性,特别是在雾化下.
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