Multispecific Antibody Development Platform Based on Human Heavy Chain Antibodies

Autor: Starlynn C, Clarke, Biao, Ma, Nathan D, Trinklein, Ute, Schellenberger, Michael J, Osborn, Laure-Hélène, Ouisse, Andrew, Boudreau, Laura M, Davison, Katherine E, Harris, Harshad S, Ugamraj, Aarti, Balasubramani, Kevin H, Dang, Brett, Jorgensen, Heather Anne N, Ogana, Duy T, Pham, Payal P, Pratap, Preethi, Sankaran, Ignacio, Anegon, Wim C, van Schooten, Marianne, Brüggemann, Roland, Buelow, Shelley, Force Aldred
Přispěvatelé: Le Bihan, Sylvie, Teneobio, Inc. [Menlo Park, CA, USA], Genetic and Cellular Engineering in Immunology and Regenerative Medicine (Team 2 - U1064 Inserm - CRTI), Centre de Recherche en Transplantation et Immunologie (U1064 Inserm - CRTI), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Nantes - UFR de Médecine et des Techniques Médicales (UFR MEDECINE), Université de Nantes (UN)-Université de Nantes (UN)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Nantes - UFR de Médecine et des Techniques Médicales (UFR MEDECINE), Université de Nantes (UN)-Université de Nantes (UN)
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Frontiers in Immunology, Vol 9 (2019)
Frontiers in Immunology
Frontiers in Immunology, 2019, 9, pp.3037. ⟨10.3389/fimmu.2018.03037⟩
ISSN: 1664-3224
Popis: International audience; Heavy chain-only antibodies (HCAbs) do not associate with light chains and their V H regions are functional as single domains, forming the smallest active antibody fragment. These V[H] regions are ideal building blocks for a variety of antibody-based biologics because they tolerate fusion to other molecules and may also be attached in series to construct multispecific antibodies without the need for protein engineering to ensure proper heavy and light chain pairing. Production of human HCAbs has been impeded by the fact that natural human V[H] regions require light chain association and display poor biophysical characteristics when expressed in the absence of light chains. Here, we present an innovative platform for the rapid development of diverse sets of human HCAbs that have been selected in vivo. Our unique approach combines antibody repertoire analysis with immunization of transgenic rats, called UniRats, that produce chimeric HCAbs with fully human V[H] domains in response to an antigen challenge. UniRats express HCAbs from large transgenic loci representing the entire productive human heavy chain V(D)J repertoire, mount robust immune responses to a wide array of antigens, exhibit diverse V gene usage and generate large panels of stable, high affinity, antigen-specific molecules.
Databáze: OpenAIRE