自动优化树脂选择,洗参数和化参数,以蛋白质A为基础的净化
Gracie K Anderson1, Mark Hicks2, Penny Hamlyn2
1IMCS, Inc., 110 Centrum Dr. Irmo, SC 29063, United States.
New biotechnology
|November 13, 2025
概括
自动化蛋白A染色学可更快地选净化参数,提高单克隆抗体 (mAb) 和双特异单克隆抗体 (bsAb) 的纯度和产量. 这种方法减少了生物处理中的成本和人为错误.
科学领域:
- 生物技术是生物技术.
- 生物加工是一种生物加工.
- 蛋白质化学 蛋白质化学
背景情况:
- 高通量蛋白质净化对于生物制药开发至关重要.
- 自动化蛋白A染色学对于单克隆抗体 (mAb) 净化至关重要,它可以去除宿主细胞蛋白 (HCP).
- 优化净化参数对于最大限度地提高抗体产量和纯度至关重要.
研究的目的:
- 开发一个更快,更具成本效益的自动化微净化工作流程.
- 为了加快选和选择树脂,洗和化参数的蛋白质A染色学.
- 评估不同参数对抗体纯度和HCP清除的影响.
主要方法:
- 开发一个自动化微净化工作流程.
- 测试三个单克隆抗体 (mAbs) 和一个双特异单克隆抗体 (bsAb).
- 选各种树脂,冲洗缓冲器 (包括用NaCl修改的中间缓冲器) 和化pH条件.
主要成果:
- 根据洗缓冲和化pH值观察到纯度和HCP清除的显著变化.
- 用化修改的中间冲洗缓冲器有效地减少了HCP污染,同时保持了高的单体产量.
- 不同的树脂表现出不同的性能特征,Praesto Jetted A50 HipH在更高的化pH下显示出优越的产量保留.
结论:
- 自动微尺度净化显著减少了抗体生物处理中的时间和资源消耗.
- 开发的工作流加速了蛋白质A染色学参数的优化.
- 优化的参数,包括冲洗缓冲器和化pH值,对于高效的抗体净化和HCP减少至关重要.
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