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相关实验视频

Updated: May 10, 2025

Author Spotlight: Process Development for the Spray-Drying of Probiotic Bacteria and Evaluation of the Product Quality
05:45

Author Spotlight: Process Development for the Spray-Drying of Probiotic Bacteria and Evaluation of the Product Quality

Published on: April 7, 2023

3.1K

喷雾干燥用于蛋白质稳定.

Katharina Tatjana Kopp1, Maarten De Beer2, Jody Voorspoels2

  • 1Eurofins Amatsigroup, Industriepark-Zwijnaarde 7B, 9052 Gent, Belgium; Drug Delivery and Disposition, KU Leuven, Department of Pharmaceutical and Pharmacological Sciences, Campus Gasthuisberg ON2, Herestraat 49, 3000 Leuven, Belgium.

International journal of pharmaceutics
|April 25, 2025
PubMed
概括
此摘要是机器生成的。

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这项研究评估了使用喷雾干燥 (SD) 治疗蛋白质的蛋白质稳定策略. 差分扫描度法 (DSF) 和静态光散射 (SLS) 预测了稳定性,但结果在蛋白质之间有所不同,质疑这些方法对凝固的充分性.

科学领域:

  • 生物制药配方 生物制药配方
  • 蛋白质稳定技术的技术
  • 分析化学 分析化学

背景情况:

  • 治疗性蛋白质在配方过程中需要稳定,以防止固有的不稳定性.
  • 使用喷雾干燥 (SD) 等固化技术来增强蛋白质的稳定性.
  • 助剂和缓冲剂是开发稳定蛋白质配方的关键组成部分.

研究的目的:

  • 评估选择的缓冲剂和辅助剂在喷雾干燥过程中增强三种模型蛋白 (α-chymotrypsin,catalase,Horseradish Peroxidase) 的稳定性的有效性.
  • 为了比较差分扫描度测量 (DSF) 与静态光散射 (SLS) 结合在喷雾干燥前和后的蛋白质稳定性的预测能力.
  • 调查超越DSF/SLS的整体方法对于预测固化过程中的蛋白质稳定性的必要性.

主要方法:

  • 配方开发使用选择的缓冲器和辅助剂,为每个模型蛋白质的三个蛋白质概念.
  • 差分扫描度测量 (DSF) 和静态光散射 (SLS) 用于评估溶液中的蛋白质稳定性.
  • 配制蛋白质的喷雾干燥 (SD).
  • 使用动态光散射,UV-VIS光谱,远紫外线圆形二极化,尺寸排除色谱和逆相色谱进行SD后的稳定性评估.

主要成果:

  • 在喷雾干燥后观察到蛋白质恢复和稳定性的显著变化,一些蛋白质的度损失超过40%.
关键词:
差分扫描光测量 差分扫描光测量辅助物质 辅助物质 辅助物质蛋白质的稳定性 蛋白质的稳定性喷雾干燥 喷雾干燥静态光散射是一种静态光散射.

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  • 只有一个酶的配方概念成功地保持了SD后的原始蛋白质度.
  • DSF/SLS准确预测了两个催化酶配方的稳定性,但未能对其他模型蛋白进行预测,这表明预测能力有限.
  • 与之前对其他蛋白质 (如BSA,IgG和lyszyme) 的研究相比,辅助剂的选择显示出极小的差异.

    • 结论:

    • 在喷雾干燥过程中为蛋白质稳定选择的辅助剂和缓冲剂的有效性在不同蛋白质之间存在显著差异.
    • 差分扫描度测量 (DSF) 和静态光散射 (SLS) 显示出预测蛋白质稳定性的潜力,但可能不足以对所有经历凝固的蛋白质进行预测.
    • 可能需要一个更全面的,整体的分析策略来准确预测和确保喷雾干燥后治疗性蛋白质的稳定性.