Cited by 28Monoclonal and Polyclonal Antibodies ResearchProtein purification and stabilityViral Infectious Diseases and Gene Expression in Insects

Optimizing assembly and production of native bispecific antibodies by codon de-optimization

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Magistrelli, Giovanni, Poitevin, Yves, Schlosser, Florence, Pontini, Guillemette, Malinge, Pauline, Josserand, Soheila, Corbier, Marie, Fischer, Nicolas·2017·mAbs

Abstract

When production of bispecific antibodies requires the co-expression and assembly of three or four polypeptide chains, low expression of one chain can significantly limit assembly and yield. κλ bodies, fully human bispecific antibodies with native IgG structure, are composed of a common heavy chain and two different light chains, one kappa and one lambda. No engineering is applied to force pairing of the chains, thus both monospecific and bispecific antibodies are secreted in the supernatant. In this context, stoichiometric expression of the two light chains allows for maximal assembly of the bispecific antibody. In this study, we selected a κλ body with suboptimal characteristics due to low kappa chain expression. Codon optimization to increase expression of the kappa chain did not improve bispecific yield. Surprisingly, progressive introduction of non-optimal codons into the sequence of the lambda chain resulted in lowering its expression for an optimal tuning of the relative distribution of monospecific and bispecific antibodies. This codon de-optimization led to doubling of the κλ body yield. These results indicate that assembly of different proteins into a recombinant complex is an interconnected process and that reducing the expression of one polypeptide can actually increase the overall yield.

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Authors
Magistrelli, G., Poitevin, Y., Schlosser, F., Pontini, G., Malinge, P., Josserand, S., Corbier, M., & Fischer, N.
Affiliations
Light Chain Bioscience (Switzerland) (CH)
Corresponding author
Fischer, Nicolas
Venue
mAbs
Published
2016-12-21
Volume
9
Issue
2
Pages
231-239
ISSN
  • 1942-0862 (ISSN-L)
  • 1942-0870
OpenAlex
W2563406937
Cited by
28
References
44
Citations by year
2026: 4 · 2025: 2 · 2024: 5 · 2023: 4 · 2022: 1 · 2021: 4 · 2020: 3 · 2019: 2 · 2018: 3
FWCI
1.45
Type
journal article
Language
en
Open access
Locations
  • mAbs (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Monoclonal and Polyclonal Antibodies Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein purification and stability
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Viral Infectious Diseases and Gene Expression in Insects
Keywords
bispecific antibodies, antibody assembly, recombinant protein expression
MeSH terms
Animals, Codon, Humans, Immunoglobulin G, Immunoglobulin kappa-Chains, Immunoglobulin lambda-Chains, Protein Engineering, Antibodies, Bispecific

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