Modular Platform for Efficient Assembly of Multifunctional Antibodies Using Orthogonal Protein-Protein Interactions

Area of Science:

• Biotechnology
• Immunology
• Protein Engineering

Background:

• Multifunctional antibodies, engaging multiple targets simultaneously, are of increasing interest.
• Existing methods for producing multifunctional antibodies face challenges like low yield, complex design, and difficult manufacturing.

Purpose of the Study:

• To introduce a novel modular post-translational platform for assembling multifunctional antibodies.
• To overcome limitations of current antibody production methods, improving yield, design, and manufacturing.

Main Methods:

• Utilized a modular platform based on highly specific protein-protein interactions for antibody assembly.
• Incorporated an elastin-like polypeptide (ELP) tag for simplified purification processes.
• Demonstrated assembly of multifunctional antibodies with diverse biological functions.

Main Results:

• Achieved over 90% assembled scaffold and high overall product purity for multifunctional antibodies.
• Successfully generated antibodies for various applications: cancer detection, growth inhibition, and T-cell-mediated cancer cell targeting.
• The platform demonstrated high assembly efficiency, straightforward purification, and modularity.

Conclusions:

• The developed platform provides an efficient and modular approach for producing high-purity multifunctional antibodies.
• This method simplifies the manufacturing process and allows for versatile redesign of antibody functions.
• The platform holds significant potential for advancing antibody-based therapeutics and diagnostics.