基于深紫外线共振拉曼光谱的mRNA疫苗的现场稳定性测试
Lamyaa M Almehmadi1,2, Sergei V Reverdatto1,2, Vladimir V Ermolenkov2
1Department of Chemistry, University at Albany, SUNY, 1400 Washington Avenue, Albany, New York 12222, United States.
Analytical chemistry
|December 5, 2023
概括
深紫外共振拉曼光谱 (DUVRR) 可以监测mRNA疫苗的稳定性. 在疫苗模型中,该技术成功检测了由酶或衰老引起的mRNA降解.
科学领域:
- 生物物理化学 生物物理化学
- 疫苗技术技术 疫苗技术
- 频谱学是一种光谱学.
背景情况:
- 使者RNA (mRNA) 疫苗代表了疫苗学的重大进步.
- 确保mRNA疫苗的in situ稳定性和完整性对于其有效性和安全性至关重要.
- 目前评估mRNA完整性的方法可能耗时或需要破坏样本.
研究的目的:
- 评估深紫外共振拉曼光谱 (DUVRR) 的潜力,用于对mRNA疫苗稳定性的非破坏性现场监测.
- 为了证明DUVRR在各种压力条件下检测mRNA降解的能力.
主要方法:
- 一种模型mRNA疫苗使用RNase A酶进行了受控降解.
- 疫苗模型还在室温下老化,以模拟储存条件.
- 通过细胞转染试验和凝电泳,独立验证了信使RNA降解.
- 深紫外线共振拉曼光谱被用来分析疫苗模型在两个降解条件下.
主要成果:
- 通过DUVRR光谱,成功地确定了标志着mRNA降解的特征性光谱变化.
- 光谱信号与通过常规方法观察到的mRNA降解程度相关.
- 该技术在检测由酶活性和热衰老引起的降解方面被证明是有效的.
结论:
- 深紫外线共振拉曼光谱是对mRNA疫苗完整性的实时,现场评估的一个有前途的工具.
- DUVRR提供了一种非破坏性的方法,用于对基于mRNA的疗法进行质量控制和稳定性监测.
- 这种光谱方法可以提高mRNA疫苗的可靠性和保质期评估.
更多相关视频
12:08Rapid Antimicrobial Susceptibility Testing by Stimulated Raman Scattering Imaging of Deuterium Incorporation in a Single Bacterium
Published on: February 14, 2022
2.7K
07:22How to Stabilize Protein: Stability Screens for Thermal Shift Assays and Nano Differential Scanning Fluorimetry in the Virus-X Project
Published on: February 11, 2019
28.3K
相关概念视频
02:31Nuclear Export of mRNA
7.7K
Before mRNAs are exported to the cytoplasm, it is crucial to check each mRNA for structural and functional integrity. Eukaryotic cells use several different mechanisms, collectively known as mRNA surveillance, to look for irregularities in mRNAs. Irregular or aberrant mRNA are rapidly degraded by various enzymes. If a defective mRNA escapes the surveillance, it would be translated into a protein which would either be non-functional or not function properly. One of the primary irregularities in...
7.7K
01:53RNA Stability
33.6K
Intact DNA strands can be found in fossils, while scientists sometimes struggle to keep RNA intact under laboratory conditions. The structural variations between RNA and DNA underlie the differences in their stability and longevity. Because DNA is double-stranded, it is inherently more stable. The single-stranded structure of RNA is less stable but also more flexible and can form weak internal bonds. Additionally, most RNAs in the cell are relatively short, while DNA can be up to 250 million...
33.6K