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Novel multispecific heterodimeric antibody format allowing modular assembly of variable domain fragments.


ABSTRACT: Multispecific antibody formats provide a promising platform for the development of novel therapeutic concepts that could facilitate the generation of safer, more effective pharmaceuticals. However, the production and use of such antibody-based multispecifics is often made complicated by: 1) the instability of the antibody fragments of which they consist, 2) undesired inter-subunit associations, and 3) the need to include recombinant heterodimerization domains that confer distribution-impairing bulk or enhance immunogenicity. In this paper, we describe a broadly-applicable method for the stabilization of human or humanized antibody Fv fragments that entails replacing framework region IV of a V?1/VH3-consensus Fv framework with the corresponding germ-line sequence of a ?-type VL chain. We then used this stable Fv framework to generate a novel heterodimeric multispecific antibody format that assembles by cognate VL/VH associations between 2 split variable domains in the core of the complex. This format, termed multispecific antibody-based therapeutics by cognate heterodimerization (MATCH), can be applied to produce homogeneous and highly stable antibody-derived molecules that simultaneously bind 4 distinct antigens. The heterodimeric design of the MATCH format allows efficient in-format screening of binding domain combinations that result in maximal cooperative activity.

SUBMITTER: Egan TJ 

PROVIDER: S-EPMC5240654 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature

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Novel multispecific heterodimeric antibody format allowing modular assembly of variable domain fragments.

Egan Timothy J TJ   Diem Dania D   Weldon Richard R   Neumann Tessa T   Meyer Sebastian S   Urech David M DM  

mAbs 20161027 1


Multispecific antibody formats provide a promising platform for the development of novel therapeutic concepts that could facilitate the generation of safer, more effective pharmaceuticals. However, the production and use of such antibody-based multispecifics is often made complicated by: 1) the instability of the antibody fragments of which they consist, 2) undesired inter-subunit associations, and 3) the need to include recombinant heterodimerization domains that confer distribution-impairing b  ...[more]

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