Heavy chain-only antibodies with a stabilized human VH in transgenic chickens for therapeutic antibody discovery

Autor: Christine N. Vuong, Kevin M. Reynolds, Gerry S. Rivera, Baisen Zeng, Zahra Karimpourkalou, Manith Norng, Yulei Zhang, Robayet Chowdhury, Darlene Pedersen, Melissa Pantoja, Ellen Collarini, Swetha Garimalla, Shelley Izquierdo, Eric G. Vajda, Brett Antonio, Devendra B. Srivastava, Marie-Cecile van de Lavoir, Yasmina Abdiche, William Harriman, Philip A. Leighton
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: mAbs, Vol 16, Iss 1 (2024)
Druh dokumentu: article
ISSN: 19420862
1942-0870
1942-0862
DOI: 10.1080/19420862.2024.2435476
Popis: Heavy chain-only antibodies have found many applications where conventional heavy-light heterodimeric antibodies are not favorable. Heavy chain-only antibodies with their single antigen-binding domain offer the advantage of a smaller size and higher stability relative to conventional antibodies, and thus, the potential for novel targeting modalities. Domain antibodies have commonly been sourced from camelids with ex-vivo humanization or transgenic rodents expressing heavy chains without light chains, but these host species are all mammalian, limiting their capacity to elicit robust immune responses to conserved mammalian targets. We have developed transgenic chickens expressing heavy chain-only antibodies with a human variable region to combine the superior target recognition advantages of a divergent, non-mammalian host with the ability to discover single-domain binders. These birds produce robust immune responses, consisting of antigen-specific antibodies targeting diverse epitopes with a range of affinities. Biophysical attributes are favorable, with good developability profiles and low predicted immunogenicity.
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