提高快速蛋白A在单克隆抗体处理中的性能:阳离子交换染色学澄清
Andrew Vail1, David Chau1, Jennifer Heitkamp1
1Purification and Filtration Business, Solventum, St. Paul, Minnesota, USA.
Biotechnology progress
|August 7, 2025
概括
澄清用离子交换 (AEX) 纤维进行的中国仓鼠卵巢 (CHO) 细胞培养提高了单克隆抗体 (mAb) 纯度,并与深度过相比显著延长了蛋白A染色学周期. 这提高了生物制药净化过程.
科学领域:
- 生物制药制造业 生物制药制造业
- 染色学净化 染色学净化
- 细胞培养技术 细胞培养技术
背景情况:
- 澄清显著影响蛋白质A染色学性能,用于从中国仓鼠卵巢 (CHO) 细胞培养物中净化单克隆抗体 (mAb).
- 之前的研究集中在传统的蛋白质A树脂上,使得新的基于膜和纤维的技术得到了较少的探索.
研究的目的:
- 评估澄清方法对基于膜和纤维的新蛋白A技术的影响.
- 评估对对流式蛋白质A技术循环强度和产品纯度的影响.
- 将充电功能纤维澄清与传统深度过进行比较.
主要方法:
- 使用充电功能纤维方法研究深度过和色谱澄清.
- 评估了对蛋白质A技术循环强度的影响.
- 评估产品的纯度,涉及化池中的与工艺相关的污染物.
主要成果:
- 对CHO细胞培养的阳离子交换 (AEX) 纤维澄清提高了mAb纯度,使宿主细胞蛋白减少至少50%,DNA减少2个日志以上.
- 与传统深度过相比,基于纤维的蛋白质A技术至少使循环寿命增加了2倍.
- 通过色谱纤维澄清观察到DNA和500nm以下颗粒的优异减少.
结论:
- 使用AEX纤维进行色谱澄清对CHO细胞培养澄清的深度过提供了显著的优势.
- 改进的澄清提高了mAb纯度,并延长了蛋白质A染色学的运行寿命.
- 为了设计有效的生物制药净化工艺,全面的工艺策略至关重要.
更多相关视频
10:33Isolation and Characterization Of Chimeric Human Fc-expressing Proteins Using Protein A Membrane Adsorbers And A Streamlined Workflow
Published on: January 8, 2014
7.2K
10:50Purification and Analytics of a Monoclonal Antibody from Chinese Hamster Ovary Cells Using an Automated Microbioreactor System
Published on: May 1, 2019
14.8K
相关概念视频
Affinity Chromatography
1.0K
Affinity chromatography is a powerful technique extensively utilized for separating and purifying specific biomolecules from complex mixtures. It capitalizes on the highly selective binding between an analyte and its counterpart, such as antibody-antigen interactions. The counterpart is immobilized on the stationary phase, forming an affinity column. The stationary phase typically consists of solid support, such as agarose or porous glass beads, immobilizing the affinity ligand. The mobile...
1.0K
Types Of Column Chromatography
11.6K
The stability and compatibility of column material with samples are crucial for efficient purification in chromatographic techniques. Various operating parameters such as pH, temperature, or solvent affect the packing of the column material, thereby determining the purification efficiency. The choice of column material also plays an essential role in deciding the operating parameters and can be modified based on the proteins that need to be purified.
Gel Filtration Chromatography
When the...
Gel Filtration Chromatography
When the...
11.6K
Ion Exchange
659
Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...
659
Immunoprecipitation
5.8K
Immunoprecipitation, or IP, is a widely used technique that employs protein-antibody interactions to isolate proteins or protein complexes in their native state for studying protein-protein interactions, quaternary structures, or supramolecular complexes. Various modifications of the technique, including chromatin IP, cross-linking IP, and fluorescence IP, are commonly used.
Chromatin Immunoprecipitation
Chromatin immunoprecipitation, also known as ChIP, is used to study protein-DNA or...
Chromatin Immunoprecipitation
Chromatin immunoprecipitation, also known as ChIP, is used to study protein-DNA or...
5.8K
