The Development of a Canine Single-chain Phage Antibody Library to Isolate Recombinant Antibodies for use in Translational Cancer Research

Małgorzata Lisowska , Erin G. Worralll, Filip Zavadil Kokáš, Keith Charlton, Euan Murray, M Aiman Mohtar, Radovan Krejcir, Václav Hrabal, Jack Brydon, Ainhoa Gonzalez Urionabarrenetxea, David Saliba, Mariana Grima, Umesh Kalathiya, Petr Muller, Adam Krejci, Bořivoj Vojtěšek, Kathryn L Ball, Robin Fahraeus, David Argyle, Maciej ParysTed R Hupp

Research output: Contribution to journalArticlepeer-review

Abstract

The development of canine immunotolerant monoclonal antibodies can accelerate the invention of new medicines for both canine and human diseases. A methodology was developed to clone the naïve, somatically mutated variable domain repertoire from canine B-cell mRNA using 5’RACE PCR. A set of degenerate primers were then designed and used to clone variable domain genes into archival “holding” plasmid libraries. These archived variable domain genes were then combinatorially ligated to produce a scFv M13 phage library. Next-generation long-read and short-read DNA sequencing methodologies were developed to annotate features of the cloned library including CDR diversity and IGHV/IGKV/IGLV subfamily distribution. A synthetic IgG was developed from this scFv library to the canine immune checkpoint receptor PD-1. This synthetic platform can be used to clone and annotate archived antibody variable domain genes for use in perpetuity in order to develop improved preclinical models for the treatment of complex human diseases
Original languageEnglish
JournalCell Reports
Early online date24 Mar 2025
DOIs
Publication statusE-pub ahead of print - 24 Mar 2025

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