使用TD-NMR和MRI在生物制药中的蛋白质聚合的非侵入性检测
Gozde Ozesme Taylan1, Hani Alam1, Erdem Mercan2
1Department of Biotechnology, Graduate School of Natural and Applied Sciences, Middle East Technical University, Ankara, Turkey.
概括
低场核磁共振 (NMR) 和磁共振成像 (MRI) 提供了一种快速,非侵入性的方法来检测生物制药中的蛋白质聚合. 这种技术成功地评估了在各种压力条件下药物的质量和稳定性.
科学领域:
- 生物制药品质量控制 生物药品质量控制
- 分析化学 分析化学
- 生物技术是生物技术.
背景情况:
- 生物技术药物需要严格的质量控制,以确保稳定性和有效性.
- 蛋白质聚合是影响生物制药安全性和性能的关键质量属性.
- 检测聚合的传统分析方法可能耗时且具有侵入性.
研究的目的:
- 评估低场核磁共振 (NMR) 和磁共振成像 (MRI) 作为生物制药质量评估的非侵入性工具.
- 研究T2放松时间和T2放松光谱在模型生物制药中检测蛋白质聚合的应用.
- 为了将NMR衍生的参数与总体大小相关联,并根据已知的技术验证该方法.
主要方法:
- 使用低场NMR,时间域NMR和磁共振成像 (MRI).
- 在Humulin R (皮下胰岛素) 中通过热和振动诱导蛋白质聚合.
- 测量T2放松时间和T2放松光谱,使用T2-逆拉普拉斯变换 (ILT) 进行总体尺寸分析.
主要成果:
- 磁力共振成像有效地区分了对照和压力生物制药样品.
- T2放松测量区分了各种压力条件,表明对聚合的敏感性.
- 聚合体大小的T2-ILT分析与传统的颗粒大小分析有很好的相关性,验证了NMR方法.
结论:
- 低场NMR和MRI为评估生物制药质量提供了快速,非侵入性的替代方案.
- 开发的方法显示了实时监测蛋白质聚合和药物稳定性的潜力.
- 这种技术为确保生物制药品的质量和安全提供了有价值的工具.
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