Generation and Selection of Phage Display Antibody Libraries in Fab Format

Area of Science:

• Biotechnology
• Immunology
• Molecular Biology

Background:

• Monoclonal antibodies (mAbs) are crucial as research tools and therapeutics.
• Display technologies, which link protein phenotype to genotype, are vital for mAb discovery.
• Phage display is a successful display technology for generating high-affinity and specific mAbs.

Purpose of the Study:

• To summarize approaches for generating and selecting phage display antibody libraries in the fragment antigen binding (Fab) format.
• To highlight the utility of Fab fragments in phage display for antibody discovery.

Main Methods:

• Utilizing phage display technology to mimic B cells.
• Employing fragment antigen binding (Fab) fragments as the monovalent format.
• Mining antibody libraries from human and nonhuman repertoires.

Main Results:

• Phage display has proven highly successful in generating mAbs with exceptional specificity and affinity.
• The Fab fragment format offers advantages including stability, low aggregation, and format convertibility.
• Fab fragments maintain natural antigen-binding configurations.

Conclusions:

• Phage display using Fab fragments is a well-established and effective method for antibody discovery.
• The Fab format's properties make it ideal for phage display applications.
• This approach facilitates the generation of diverse antibody libraries for various applications.