Antibody Isolation from Human Synthetic Libraries of Single-Chain Antibodies and Analysis Using NGS

Area of Science:

• Biotechnology
• Immunology
• Bioinformatics

Background:

• Antibody libraries emerged 30 years ago, enabled by immunoglobulin gene sequencing and PCR technology.
• Phage display and other screening technologies are crucial for identifying specific antibodies from these libraries.
• Phage display requires specialized expertise and is not a readily available kit-based technology.

Purpose of the Study:

• To demonstrate the utility of next-generation sequencing (NGS) analysis for phage biopanning (phage-Seq).
• To show how phage-Seq facilitates antibody discovery from complex antibody libraries.
• To illustrate how phage-Seq provides insights into the biopanning process.

Main Methods:

• Utilized phage display technology to construct and pan complex antibody libraries.
• Applied next-generation sequencing (NGS) to analyze the DNA sequence output from phage biopanning.
• Integrated bioinformatics tools for the analysis of large-scale sequencing data (phage-Seq).

Main Results:

• NGS analysis of phage biopanning (phage-Seq) effectively identifies desired binding specificities.
• Phage-Seq analysis streamlines the antibody discovery process from complex libraries.
• The method provides a deeper understanding of the dynamics and outcomes of the biopanning process.

Conclusions:

• Phage-Seq is a powerful approach for accelerating antibody discovery.
• Combining NGS with phage biopanning offers significant advantages over traditional methods.
• This integrated approach enhances both antibody identification and the optimization of discovery protocols.