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Updated: Jan 30, 2026

Determining Binding Affinity KD of Radiolabeled Antibodies to Immobilized Antigens
Published on: June 23, 2022
Understanding and overcoming trade-offs between antibody affinity, specificity, stability and solubility
Lilia A Rabia1, Alec A Desai2, Harkamal S Jhajj3
1Center for Biotechnology & Interdisciplinary Studies, Isermann Dept. of Chemical & Biological Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180.
Optimizing therapeutic monoclonal antibodies involves balancing properties like affinity and stability. New methods allow for co-optimization, enabling faster generation of improved antibodies for diverse applications.
Area of Science:
- Biotechnology
- Immunology
- Drug Development
Background:
- Monoclonal antibodies are widely used therapeutics, driving efforts to enhance their natural properties.
- Optimization goals include improving affinity, specificity, stability, solubility, and effector functions.
- Introducing non-natural activities like bispecificity and drug conjugation is also a key focus.
Purpose of the Study:
- To review recent advances in understanding the trade-offs between different antibody properties.
- To explore new approaches for co-optimizing multiple antibody characteristics simultaneously.
- To discuss the application of these methods for rapid and systematic antibody generation.
Main Methods:
- Review of existing literature on antibody property optimization.
- Analysis of interdependencies between antibody properties (affinity, specificity, stability, solubility).
- Examination of novel strategies for simultaneous multi-property enhancement.
Main Results:
- Improvements in one antibody property can negatively impact others, presenting optimization challenges.
- Emerging techniques facilitate the co-optimization of multiple antibody attributes.
- These advancements streamline the development of antibodies with tailored profiles.
Conclusions:
- Understanding property trade-offs is crucial for effective antibody engineering.
- Co-optimization strategies accelerate the generation of superior therapeutic antibodies.
- These advancements support the development of antibodies for a broad spectrum of applications.
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