Related Experiment Video
Updated: Aug 7, 2026

Generation of Discriminative Human Monoclonal Antibodies from Rare Antigen-specific B Cells Circulating in Blood
Published on: February 6, 2018
Antibody production
John R Birch1, Andrew J Racher
1Lonza Biologics plc, 228 Bath Road, Slough, Berkshire, SL1 4DX, UK. john.birch@lonza.com
Monoclonal antibody production in mammalian cell culture has seen a 100-fold productivity increase due to improved expression and fed-batch processes. Future trends focus on faster cell line development for quicker clinical material production.
Area of Science:
- Biotechnology
- Biopharmaceutical Manufacturing
- Cell Culture Technology
Background:
- The widespread clinical and commercial success of monoclonal antibodies necessitates large-scale production.
- This has driven significant global expansion in manufacturing capacity, including larger bioreactors (up to 20,000 L).
- There is a continuous effort to enhance process efficiency and reduce manufacturing costs.
Purpose of the Study:
- To review current technologies for monoclonal antibody production, focusing on mammalian cell culture.
- To discuss advancements in upstream processing, including expression technology and fed-batch cultures.
- To explore future trends in monoclonal antibody manufacturing, particularly in accelerating process development and cell line creation.
Main Methods:
- Review of existing literature and industry practices in mammalian cell culture for monoclonal antibody production.
- Analysis of improvements in expression technology and process optimization strategies.
- Discussion of cell line development timelines and potential future innovations.
Main Results:
- Upstream processing productivity has improved 100-fold over the last 15 years.
- Improvements stem from enhanced expression systems and optimized fed-batch culture techniques.
- Cell line creation remains a critical bottleneck in reducing overall process development time.
Conclusions:
- Mammalian cell culture is a cornerstone of modern monoclonal antibody manufacturing.
- Significant progress has been made in upstream productivity, but cell line development requires further acceleration.
- Future efforts will likely focus on streamlining early-stage development to expedite the availability of therapeutic materials.
Related Concept Videos
Antibody Structure
Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
The Y-Shaped Structure of Antibodies Consists of Four Polypeptide Chains
Antibodies consist of four polypeptide chains: two identical heavy...
Hybridoma Technology
Hybridoma Selection
Commonly used fusion techniques — electroporation, polyethylene glycol...
Antibody Structure and Classes
The basic structure of an antibody consists of four protein chains: two identical heavy chains and two identical light chains. These chains are held together by disulfide bonds and other non-covalent interactions, forming a Y-shaped structure.
Antibody Actions
Neutralization
Antibodies can bind to pathogens, preventing them from infecting host cells. This process...
Humoral Immune Responses
B Cell Activation and Differentiation
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...

