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Purification and Analytics of a Monoclonal Antibody from Chinese Hamster Ovary Cells Using an Automated Microbioreactor System
Published on: May 1, 2019
Purification of antibodies
1Mabtech AB, Nacka Strand, Sweden.
Methods in Molecular Medicine
|July 10, 2008
Summary
Purifying mammalian immunoglobulin G (IgG) involves diverse strategies based on protein properties. This guide details methods for polyclonal and monoclonal IgG, emphasizing purity and specificity for sensitive assays.
Area of Science:
- Biochemistry
- Immunology
- Protein Chemistry
Background:
- Immunoglobulins (Igs) are diverse proteins requiring varied purification techniques.
- Understanding physiochemical properties is crucial for effective immunoglobulin purification.
- Immunoglobulin G (IgG) is the primary Ig in mammalian sera, particularly in older animals.
Purpose of the Study:
- To outline diverse and numerous strategies for purifying immunoglobulins.
- To detail the purification of mammalian IgG from both polyclonal (rabbit) and monoclonal (mouse) sources.
- To highlight the importance of purity and specificity for ultrasensitive assays.
Main Methods:
- Exploration of purification strategies based on immunoglobulin physiochemical properties.
- Comparison of polyclonal and monoclonal antibody purification approaches, considering cost, yield, quality, and standardization.
- Focus on mammalian IgG purification from rabbit and mouse sources.
Main Results:
- Purification strategies are numerous and depend on immunoglobulin heterogeneity.
- Polyclonal and monoclonal antibody purification present distinct advantages and disadvantages.
- Mammalian IgG constitutes a significant portion of total Ig concentration in older animals.
Conclusions:
- The choice of purification method for immunoglobulins depends on their specific properties and intended application.
- Optimal purity and specificity are essential for developing ultrasensitive assays.
- This chapter provides a focused guide on mammalian IgG purification from common sources.
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