Development of technologies for evaluation of antibody response following Coronavirus Infection vs Vaccination to identify immune correlates of protection

NIH Pandemic-Era Grants

Pandemic Era Grants

2020

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Principal Investigator: Hana  Golding
Organization: NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES
Fiscal Year: 2020
Award: $160,000
Funding agency: National Institute of Allergy and Infectious Diseases

The emergence of the Coronavirus (SARS-CoV-2) initiated efforts to rapidly develop effective medical countermeasures including vaccines and therapeutics against this severe disease. However, there is limited knowledge on polyclonal antibody responses generated following vaccination or SARS-CoV-2 infection in animals or humans. It is important to identify and understand immune markers that are reasonably likely to predict clinical benefit and that can facilitate evaluation of vaccine and therapeutic candidates, including:
I.	Do different vaccine platforms elicit similar or different antibody epitope repertoires, antibody isotypes, antibody affinity and durability in human’s vs animals?
II.	What are the correlates of protection against SARS-CoV-2: Total antibody binding to specific antigenic regions within spike protein? antibody affinity? antibody isotype? antibody epitope diversity?
III.	Is the quantity, quality (epitopes and affinity) and durability of antibodies generated by SARS-CoV-2- vaccination is similar or different than those of antibodies found in post-infection (in acute and convalescent) sera? 

To address these gaps, we will develop advanced technologies, including whole genome phage display library (GFPDL) and SPR for the new Coronavirus (SARS-CoV-2) for in-depth analysis of immune responses following vaccination and SARS-CoV-2 infection in animal models or humans.

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