强制降解在体外转录的mRNA的综合色谱评估
Daniel M Dayeh1, Jaclyn Cika1, Youmi Moon1
1Protein Biochemistry, Regeneron Pharmaceuticals, Inc., 777 Old Saw Mill River Road, Tarrytown, NY 10591, United States.
Journal of chromatography. A
|April 17, 2024
概括
使者RNA (mRNA) 疗法需要强大的分析方法. 温度压力可以降解mRNA,但添加EDTA可以减少这一点,这表明金属离子介导的降解途径可以提高稳定性.
科学领域:
- 生物化学 生物化学
- 分析化学 分析化学
- 制药科学 制药科学
背景情况:
- 使者RNA (mRNA) 疗法正在获得突出地位,需要用于临床试验材料生产的先进分析技术.
- 强制降解研究对于在制造,储存和运输过程中识别mRNA漏洞至关重要.
- 温度波动是常见的压力,可以加速mRNA降解.
研究的目的:
- 开发和提出基于色谱的稳定性指示试验,用于评估热降解的体外转录 (IVT) mRNA.
- 为了研究温度应激对mRNA稳定性的影响.
- 确定潜在的降解途径和有助于降解的因素.
主要方法:
- 利用一组基于色谱的稳定性指示试验.
- 进行了强制降解研究,涉及IVTmRNA的热应力.
- 研究了乙烯基二胺三酸 (EDTA) 在暴露在热下对mRNA降解的影响.
主要成果:
- 开发了能够评估热应力IVTmRNA的测试方法.
- 在添加EDTA时观察到mRNA降解的减少,这表明双价金属离子介导的途径.
- 鉴定了微量双价金属污染作为RNA不稳定性的可能因素.
- 证明了评估mRNA关键质量属性 (CQA) 和杂质的方法的实用性.
结论:
- 基于色谱的测试提供了一种可靠的方法来评估在热应力下mRNA的稳定性.
- 二元金属离子在mRNA热降解中起着重要作用.
- 控制金属离子污染对于在生产和储存期间保持mRNA完整性至关重要.
- 开发的测试对mRNA治疗药物的质量控制和杂质分析非常有价值.
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