In this SPR webinar, you will learn:

  • How SPR works and its unique advantages for kinetic analysis of antibody-antigen interactions
  • Applications of SPR in antibody discovery
  • Functionality of SPR in antibody characterization

Abstract

Due to their ability to bind biomolecules specifically and tightly, antibodies are highly sought after as invaluable reagents for basic biological research, clinical diagnostics, and therapeutic treatments. Consequently, antibody discovery campaigns have become increasingly appealing to identify, characterize, and optimize antibodies with novel targets and functionalities. In a typical discovery workflow, antibody candidates are generated by confirming the interaction between the antibodies and the target of interest, leading to potential ‘hits’. At this stage, it is commonplace to have a large number of candidates, but how does one move forward to select lead antibody molecules for further research and development?

Here, we demonstrate the application of kinetic analysis by the surface plasmon resonance (SPR) assay in a proof-of-concept antibody discovery workflow. Using our REpAb® Antibody discovery service, we sequenced the population of polyclonal antibodies directly from an alpaca’s serum. From this population, six antibodies with strong polyclonal binding activity were screened, validated, and analyzed against two targets through kinetic profiling by SPR. As a result, four lead candidates were identified based on their kinetic profiles indicating their highly unique specificities, selectivities, affinities, and other kinetic parameters (ie. on-rate and off-rate).

Advancements in de novo protein sequencing and proteomics techniques, like those applied here, make it possible to accelerate the discovery workflow by minimizing the need to produce the entire collection of potential candidate molecules. One of the many advantages to this approach is the capability to prioritize candidates with valuable attributes in manageable volumes. Strategies like these have the potential to speed up the discovery process, making these critically important reagents more accessible.

Speaker Bios

Marko Jovic, PhD

Rapid Novor

Product Manager, SPR

Marko leads our Antibody Kinetics team with over 15 years of experience in antibody optimization and development. In his role as a Product Manager, he is using the power of surface plasmon resonance to realize the full potential of antibodies in the development of the next generation of biologics.

Prior to joining Rapid Novor, Marko held leadership roles in biotech, academia, and governmental organizations ranging from the NIH to Nicoya Lifesciences and the Nebraska Medical Center. He has successfully implemented numerous antibody development projects and trained over 100 researchers in the exciting science of SPR.