Development of a Monoclonal Antibody for the Detection of Anti-Canine CD20 Chimeric Antigen Receptor Expression on Canine CD20 Chimeric Antigen Receptor-Transduced T Cells.
Journal of veterinary medical science(2021)
Abstract
Chimeric antigen receptor (CAR) CAR-T cell therapy targeting CD20 can be a novel adoptive cell therapy for canine patients with B-cell malignancy. After injection of the CAR-T cells in vivo, monitoring circulating CAR-T cells is essential to prove in vivo persistence of CAR-T cells. In this study, we developed a novel monoclonal antibody against canine CD20 CAR, whose single-chain variable fragment was derived from the our previously reported anti-canine CD20 therapeutic antibody. Furthermore, we proved that this monoclonal antibody can detect therapeutic anti-canine CD20 chimeric antibody in the serum from healthy beagle dogs injected with the therapeutic antibody for safety study. This monoclonal antibody is a useful tool for monitoring both canine CD20-CAR-T cells and anti-canine CD20 therapeutic antibody for canine lymphoma.
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Key words
adoptive immunotherapy,canine,CD20,chimeric antigen receptorT cell,monoclonal antibody
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