相关实验视频

Updated: Jan 14, 2026

Generation of Cationic Nanoliposomes for the Efficient Delivery of In Vitro Transcribed Messenger RNA

Generation of Cationic Nanoliposomes for the Efficient Delivery of In Vitro Transcribed Messenger RNA

Published on: February 1, 2019

协调脂质:促进增强mRNA传递效率的促进剂

Yiran Zhang¹, Kexin Su¹, Lu Shi¹

¹College of Pharmaceutical Sciences, Liangzhu Laboratory, Zhejiang University, Hangzhou, 310058, China.

Angewandte Chemie (International ed. in English)

|October 20, 2025

概括

研究人员为信使RNA (mRNA) 疗法开发了新的协调脂质 (Zn-CL). 这些脂质纳米粒子在体内显著增强mRNA输送和翻译,克服了关键的输送挑战.

科学领域:

生物技术是生物技术.
材料科学材料科学材料科学
药物运输药物运输药物运输

背景情况:

传递 RNA (mRNA) 疗法需要高效的传递系统.
目前的脂质纳米粒子 (LNPs) 依赖于静电相互作用来结合mRNA,限制了传递效率.
探索替代的分子间力量可以改善mRNA递送的多个阶段.

研究的目的:

设计和评估协调脂质 (Zn-CL) 以提高mRNA传递.
调查Zn-CL脂质改善mRNA封装,细胞吸收和内分体逃逸的机制.
与现有的LNP技术相比,评估Zn-CL配方LNP的体内疗效.

主要方法:

协调电离性脂质 (Zn-CL) 的合成和表征.
使用Zn-CL用于mRNA封装的LNP的配方.
在体外评估mRNA结合亲和力,细胞吸收和内体细胞逃逸.
在动物模型中对mRNA传递效率和蛋白质翻译的体内评估.
将Zn-CL LNP与FDA批准的SM-102 LNP进行比较.

主要成果:

通过对酸盐群的强烈亲和力,Zn-CL脂质形成稳定但可逆的mRNA复合体.
Zn-CL LNPs通过与生物膜的相互作用显示出增强的细胞吸收.
实现了有效的内体体逃脱和细胞核mRNA释放,解决了封装释放悖论.
在体内研究显示,与SM-102 LNP相比,mRNA翻译增加了29倍.
金属协调策略是多方面的,有协调脂质,使脏向的交付.

结论:

在电离性脂质中协调提供了一种多功能平台,可以克服mRNA传递的挑战.
在体内,Zn-CL LNP显著提高了mRNA递送效率和翻译.
这种新的方法为推进基于mRNA的治疗方法提供了巨大的潜力.
金属协调脂质代表了针对性mRNA递送应用的有前途的策略.

关键词:

药物输送是药物输送的过程.脂质纳米颗粒的使用方法脂质脂质脂质是一种协调的协调提供mRNA的交付.

更多相关视频

Using Lipid Nanoparticles for the Delivery of Chemically Modified mRNA into Mammalian Cells

Using Lipid Nanoparticles for the Delivery of Chemically Modified mRNA into Mammalian Cells

Published on: June 10, 2022

Direct Protein Delivery to Mammalian Cells Using Cell-permeable Cys2-His2 Zinc-finger Domains

Direct Protein Delivery to Mammalian Cells Using Cell-permeable Cys2-His2 Zinc-finger Domains

Published on: March 25, 2015

相关概念视频

Regulated mRNA Transport

Regulated mRNA Transport

In eukaryotes, transcription and translation are compartmentalized; an mRNA is first synthesized in the nucleus and then selectively transported to the cytoplasm for protein synthesis. Before transport, a pre-mRNA undergoes several steps of post-transcriptional modifications including splicing, 5' capping, and the addition of a poly-adenine tail. Various proteins bind to the pre-mRNA during these modifications. The mRNA transport takes place with the help of multiple proteins playing...

Regulation of Nuclear Protein Sorting

Regulation of Nuclear Protein Sorting

Nuclear protein sorting regulates nucleus composition and gene expression, crucial for determining the fate of a eukaryotic cell. Hence, the entry and exit of molecules across the nuclear envelope is a tightly controlled process. Nuclear protein sorting can be inhibited by one of the following ways: 1) masking cargo signal sequences, 2) modifying the nuclear receptor's affinity for cargo, 3) controlling the nuclear pore size, 4) retaining the cargo during its transit to the cytosol or the...