简化离子交换染色学过程的开发,用于治疗单克隆抗体净化
Wing Yee Lau1, Xue Mi1, Alex Dumont1
1Purification Process Development, Product Development, Science & Technology - Biologics, AbbVie Bioresearch Center, Worcester, MA 01605USA.
Journal of chromatography. A
|September 30, 2025
概括
这项研究评估了用于单克隆抗体 (mAb) 净化的阴离子交换 (CEX) 染色学树脂,确定Poros XS作为高容量和杂质清除的优越选择. 这些发现简化了树脂选择和工艺开发,以高效地制造治疗性蛋白质.
科学领域:
- 生物制药制造业 生物制药制造业
- 染色学净化净化方法
- 蛋白质化学 蛋白质化学
背景情况:
- 在治疗单克隆抗体 (mAb) 净化过程中,离子交换 (CEX) 染色学对于去除高分子量 (HMW) 杂质至关重要.
- CEX树脂具有选择性和可扩展性,使其适用于mAb生产中的抛光步骤.
研究的目的:
- 评估五种商业CEX树脂用于mAb净化.
- 为了确定优越的动态结合能力 (DBC),杂质清除,产量和强度的最佳树脂.
- 开发CEX流程开发的简化方法.
主要方法:
- 使用3个mAbs.评估了5个CEX树脂 (Capto S ImpAct,Poros 50 HS,Poros XS,Nuvia HR-S,Eshmuno CPX) 使用3个mAbs.进行了评估.
- 进行压力流动曲线实验以确定工作速度.
- 进行了DBC研究,以评估柱子的负载能力.
- 使用高通量选和线性盐梯度,优化了化条件.
- 采用系统的实验设计 (DOE) 来进行工艺稳定性表征.
- 用一种基于机械模型的方法来开发流程.
主要成果:
- 波罗斯XS表现出优越的结合能力和强度,优于其他树脂.
- 确定了Capto S ImpAct和Eshmuno CPX作为可比的替代品.
- 波罗斯XS在高流速 (3分钟的停留时间) 中实现了高DBC (>100g/L在10%的突破率).
- 选择的树脂有效地将HMW物种从5%降至1%,产量超过90%.
- 一个机械模型预测了<2%偏差的实验结果.
结论:
- 波罗斯XS是mAb净化领域领先的CEX树脂,提供高容量,高效的HMW杂质去除,以及工艺稳定性.
- 该研究为CEX树脂选择和工艺开发建立了一个简化,模型辅助的方法.
- 这种方法提高了生物制药制造业的效率和生产率.
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