分子间相互作用对单克隆抗体通过病毒去除膜过的作用
Matthew Billups1, Mirko Minervini1, Melissa Holstein2
1Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania, USA.
Biotechnology journal
|August 29, 2023
概括
单克隆抗体 (mAb) 过流量受到可逆自我关联的限制,而不仅仅是大小. 了解mAb的疏水性和相互作用有助于病毒去除过程的设计.
科学领域:
- 生物制药制造业 生物制药制造业
- 过科学是过的科学.
- 蛋白质聚合蛋白质的聚合.
背景情况:
- 病毒去除过对于单克隆抗体 (mAb) 产品安全至关重要.
- 在mAb过过程中低液流量带来了挑战,其潜在机制尚不清楚.
- 影响过行为的抗体特性需要进一步调查.
研究的目的:
- 研究mAbs.的病毒去除过过程中流量下降背后的机制.
- 为了确定与过性能相关的抗体特征.
- 为优化mAb病毒过过程提供见解.
主要方法:
- 使用三个不同的mAbs和三个商业病毒过器进行过试验.
- 在不同的条件下测量过物流量和流量下降.
- 包括水力动态直径 (通过动态光散射) 和疏水性 (通过疏水性相互作用色谱) 的mAb属性的表征.
主要成果:
- 在mAb过过程中流量下降主要是可逆的.
- 过流量与mAbs. 的水力动力直径有很强的相关性.
- 呈现最低流量的mAbs显示了增加的有吸引力的分子间相互作用和水性.
结论:
- mAbs的可逆自关联是过流动行为的主要驱动因素.
- mAb的水力动力直径和分子间相互作用显著影响病毒去除过效率.
- 这些发现支持改进病毒过策略的设计和早期识别有问题的mAbs.
更多相关视频
07:53Activated Cross-linked Agarose for the Rapid Development of Affinity Chromatography Resins - Antibody Capture as a Case Study
Published on: August 16, 2019
9.3K
10:50Purification and Analytics of a Monoclonal Antibody from Chinese Hamster Ovary Cells Using an Automated Microbioreactor System
Published on: May 1, 2019
14.7K
相关概念视频
Detergent Purification of Membrane Proteins
5.2K
Detergents are used to purify the integral proteins of the membrane. The hydrophobic portion of the detergent can replace membrane phospholipids while solubilizing the membrane proteins. When detergent monomers reach a specific concentration in a solution called critical micelle concentration (CMC), they form micelles. Above CMC, the concentration of the detergent monomers remains in equilibrium with the micelle. The number of detergent monomers present in the CMC varies for each detergent, and...
5.2K
Antibody Actions
1.1K
Antibodies, or immunoglobulins, are critical players in the immune system's arsenal against invading pathogens. Produced by B cells and plasma cells, their primary role is to detect and bind to specific antigens, molecules found on the surface of pathogens like bacteria or viruses. Beyond antigen recognition, antibodies perform several vital functions that contribute to immune defense.
Neutralization
Antibodies can bind to pathogens, preventing them from infecting host cells. This process...
Neutralization
Antibodies can bind to pathogens, preventing them from infecting host cells. This process...
1.1K
Dialysis
730
Dialysis is a diffusion-based purification process that separates analyte molecules from a complex matrix. This is accomplished by allowing molecules in the solution to pass through a semipermeable membrane into a liquid on the other side. The membrane is usually made of cellulose acetate or cellulose nitrate, and the second liquid must be miscible with the solution. Ions (e.g., chloride or sodium) or organic molecules (e.g., glucose) can pass through the membrane pores, which generally have...
730
Hybridoma Technology
14.9K
Hybridoma technology is used for the large-scale production of monoclonal antibodies. Monoclonal antibodies bind to only a single antigenic determinant or epitope. Such antibodies are used in research, diagnostics, and disease therapy. The hybridoma technology established in 1975 by Georges Köhler and Cesar Milstein was awarded the Nobel Prize in Medicine in 1984 for revolutionizing research and therapy.
Hybridoma Selection
Commonly used fusion techniques — electroporation,...
Hybridoma Selection
Commonly used fusion techniques — electroporation,...
14.9K
Physical Methods for Controlling Microbial Growth: Radiation and Filtration
53
Radiation and filtration are essential tools for microbial control, targeting microorganisms through distinct mechanisms. Radiation eliminates microbes by damaging their DNA, either killing them or inhibiting their growth. Based on wavelength, radiation is classified into two types: nonionizing and ionizing radiation.Non-ionizing radiation, such as UV radiation (200–400 nm), is absorbed by DNA, causing defects that effectively disinfect surfaces, air, and water, including safety cabinets.
53
