Gene-based vaccination and screening methods to develop monoclonal antibodies

Area of Science:

• Immunology
• Molecular Biology
• Biotechnology

Background:

• Gene-based in vivo electroporation is a promising protein-free method for generating monoclonal antibodies (mAbs).
• Current limitations include the need for standardized electroporation parameters, protein antigens for boosting, and purified proteins for screening.
• The method is primarily effective for protein and peptide antigens, not carbohydrates, lipids, or haptens.

Purpose of the Study:

• To present optimized methods for overcoming challenges in gene-based in vivo electroporation for monoclonal antibody generation.
• To enable efficient production of mAbs against protein and peptide antigens using a protein-free approach.

Main Methods:

• Development of an optimized electroporation framework.
• Utilizing transiently transfected cells for the final boost immunization.
• Employing an "In-Cell Western" assay for primary screening of antibody-producing clones.

Main Results:

• Successfully addressed key challenges in gene-based in vivo electroporation for mAb production.
• Demonstrated the efficacy of transiently transfected cells for boosting and screening.
• Validated the "In-Cell Western" method for clone screening.

Conclusions:

• Optimized gene-based in vivo electroporation provides a robust, protein-free strategy for generating monoclonal antibodies.
• The developed methods enhance the efficiency and applicability of this technique for antibody discovery.