捕获Select FcXP亲和力介质表现出强大的聚合物分离能力
Wanyuan Dong1, Dan Zhang1, Yifeng Li1
1Downstream Process Development (DSPD), WuXi Biologics, 288 Fute Zhong Road, Waigaoqiao Free Trade Zone, Shanghai, 200131, China.
Protein expression and purification
|May 17, 2024
概括
捕获Select FcXP亲和介质在双特异抗体净化过程中有效地去除聚合物,为高聚合物料流提供了A蛋白的潜在替代品. 这提高了抗体产品的纯度.
科学领域:
- 生物技术是生物技术.
- 生物制药制造业 生物制药制造业
- 蛋白质净化 蛋白质净化
背景情况:
- 蛋白A染色体是抗体净化的标准,但在聚合物去除方面存在困难.
- 聚合物去除对于抗体的有效性和安全性至关重要.
- 现有的聚合物分离方法可能是复杂或低效的.
研究的目的:
- 为了评估CaptureSelect FcXP亲和力介质的总分离能力.
- 为了比较FcXP与蛋白A的性能,用于双特异抗体净化.
- 评估FcXP在减少料流中聚合物含量的有效性.
主要方法:
- 使用的CaptureSelect FcXP亲和介质用于双特异抗体净化.
- 采用了pH和导电度梯度化策略.
- 在使用分析技术的料和化物样本中量化聚合物含量.
主要成果:
- 在两个双特异性抗体病例中,FcXP表现出强大的聚合物分离能力.
- 聚合物含量从料中超过16%和22%显著降低到化物中低于1%和5%.
- 在梯度化条件下实现了有效的聚合物去除.
结论:
- 捕获Select FcXP亲和介质在双特异性抗体净化过程中显示出大量聚合物去除的潜力.
- 在处理高总负载时,FcXP可能是蛋白A的优质替代品,用于产品捕获.
- 需要进一步的研究来充分确定FcXP在聚合物清除中的优势.
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