用人工智能驱动的可离子化脂质的合理设计,用于mRNA输送
Wei Wang1,2, Kepan Chen3,4, Ting Jiang4,5
1State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China.
Nature communications
|December 31, 2024
概括
人工智能加速了用于mRNA传递系统的新型电离性脂质的发现. 人工智能驱动的虚拟查发现了新的脂质纳米颗粒 (LNP),它们与当前标准的性能相匹配或超过.
科学领域:
- 生物技术和制药科学 生物技术和制药科学
- 计算化学和药物设计
- 纳米医学和药物输送
背景情况:
- 脂质纳米颗粒 (LNP) 对于mRNA传递至关重要,正如它们在COVID-19疫苗中的成功所证明的那样.
- 优化电离性脂质的传统方法,这是LNP的关键组成部分,涉及低效和昂贵的实验查.
- 对于新型电离性脂质,需要加速,合理的设计策略.
研究的目的:
- 采用人工智能 (AI) 和虚拟选来合理设计可离子化脂质.
- 预测关键的LNP特性,包括明显的pKa和mRNA传递效率.
- 加速发现用于mRNA治疗的高性能电离性脂质.
主要方法:
- 利用人工智能驱动的生成和虚拟选,在两个代中评估大约2000万个可电离脂质.
- 预测候选电离性脂质的明显pKa和mRNA传递效率.
- 通过体内小鼠测试验证了AI识别的有希望的脂质.
主要成果:
- 在第一个AI代中确定了三种新的可电离脂质,其中一种表现与DLin-MC3-DMA (MC3) 相似.
- 在第二次代中发现了六种新的可电离脂质,所有这些都与MC3性能相匹配或超过.
- 第二次代中的一种脂质表现出与高级控制SM-102类似的疗效,AI模型提供了可解释的结构-活性关系.
结论:
- 人工智能和虚拟查为合理设计电离性脂质提供了高效和有效的方法.
- 开发的AI模型成功地识别了具有优越或与现有标准相匹配的性能的新型电离性脂质.
- 这种由人工智能驱动的方法极大地加速了用于mRNA传递应用的LNP开发.
相关概念视频
Experimental RNAi
6.0K
RNA interference (RNAi) is a cellular mechanism that inhibits gene expression by suppressing its transcription or activating the RNA degradation process. The mechanism was discovered by Andrew Fire and Craig Mello in 1998 in plants. Today, it is observed in almost all eukaryotes, including protozoa, flies, nematodes, insects, parasites, and mammals. This precise cellular mechanism of gene silencing has been developed into a technique that provides an efficient way to identify and determine the...
6.0K
RNA Interference
25.9K
RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
25.9K


