Biophysical and biochemical characterization of a VHH-based IgG-like bi- and trispecific antibody platform

Autor: Lukas Pekar, Michael Busch, Bernhard Valldorf, Steffen C. Hinz, Lars Toleikis, Simon Krah, Stefan Zielonka
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: mAbs, Vol 12, Iss 1 (2020)
Druh dokumentu: article
ISSN: 19420862
1942-0870
1942-0862
DOI: 10.1080/19420862.2020.1812210
Popis: Here, we report the characterization of a VHH-derived IgG-like bi- and trispecific antibody platform that essentially relies on the replacement of the VH and VL regions of a conventional antibody by two independently functioning VHH domains. Consequently, a VHH is engrafted onto constant region CH1 while the other VHH-based paratope is engrafted on the constant region of the light chain, Cκ or Cλ, resulting in a tetravalent bispecific IgG-like molecule. Combined with a heavy chain heterodimerization technique, this platform allows facile engineering of bi- and trispecific antibodies with flexible valencies. We demonstrate the general applicability of this generic platform approach and elaborate on the limitations of specific formats.
Databáze: Directory of Open Access Journals