优化的仿生矿物质在长期储存后保持mRNA复合物的活性
Joshua A Choe1, Hannah M Brinkman2, Jae Sung Lee3
1Department of Biomedical Engineering, Madison, WI, USA; Department of Orthopedics and Rehabilitation, Madison, WI, USA; Medical Scientist Training Program, Madison, WI, USA.
Acta biomaterialia
|December 7, 2023
概括
矿物质可以稳定信使RNA (mRNA) 复合体,克服冷藏的需要. 这一突破允许治疗mRNA在室温下保持六个月的活性,从而提高了可访问性.
科学领域:
- 生物材料科学 生物材料科学
- 分子生物学分子生物学
- 制药科学 制药科学
背景情况:
- 使者RNA (mRNA) 疗法提供快速设计和可扩展的制造,这是COVID-19疫苗所证明的.
- 目前的mRNA疗法需要冷链物流,限制了对资源丰富地区的访问.
- 矿化化石表明,在恶劣条件下核酸稳定,这表明了潜在的解决方案.
研究的目的:
- 研究酸矿物质在稳定冷化mRNA复合物的潜力.
- 开发一种矿物制剂,在没有冷链储存的情况下保持mRNA活性.
- 提高mRNA疗法的可访问性和适用性.
主要方法:
- 合成和选40种酸矿物质用于mRNA复合体稳定.
- 将mRNA复合体纳入优化的矿物制剂中.
- 在室温 (25°C) 保存长达6个月后评估mRNA活性和转染效率.
- 与没有矿物制剂的最先进的辅助剂进行比较.
主要成果:
- 最佳的矿物配方实现了77%的mRNA复合体整合效率.
- 矿物质配方将mRNA转染效率提高了5.6倍.
- 在25°C下与矿物质一起储存了6个月的冷化mRNA复合物,与仅含辅助剂一起储存的mRNA复合物相比,其活性保持了3.2倍.
- 在室温下3天至6个月的矿物储存mRNA复合物中,没有观察到传染功效的下降.
结论:
- 矿物质可以有效地稳定治疗的mRNA复合体,从而消除了冷链储存的需要.
- 这种基于矿物质的稳定方法显著提高了mRNA疗法的耐用性和活性.
- 这些发现为在全球范围内更容易获得和广泛应用的基于mRNA的治疗铺平了道路.
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