Cited by 308Monoclonal and Polyclonal Antibodies Researchvaccines and immunoinformatics approachesComputational Drug Discovery Methods

Optimization of therapeutic antibodies by predicting antigen specificity from antibody sequence via deep learning

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Mason, Derek M., Friedensohn, Simon, Weber, Cédric R., Jordi, Christian, Wagner, Bastian, Meng, Simon M., Ehling, Roy A., Bonati, Lucia +4 more·2021·Nature Biomedical Engineering

Abstract

The optimization of therapeutic antibodies is time-intensive and resource-demanding, largely because of the low-throughput screening of full-length antibodies (approximately 1 × 10 3 variants) expressed in mammalian cells, which typically results in few optimized leads. Here we show that optimized antibody variants can be identified by predicting antigen specificity via deep learning from a massively diverse space of antibody sequences. To produce data for training deep neural networks, we deep-sequenced libraries of the therapeutic antibody trastuzumab (about 1 × 10 4 variants), expressed in a mammalian cell line through site-directed mutagenesis via CRISPR-Cas9-mediated homology-directed repair, and screened the libraries for specificity to human epidermal growth factor receptor 2 (HER2). We then used the trained neural networks to screen a computational library of approximately 1 × 10 8 trastuzumab variants and predict the HER2-specific subset (approximately 1 × 10 6 variants), which can then be filtered for viscosity, clearance, solubility and immunogenicity to generate thousands of highly optimized lead candidates. Recombinant expression and experimental testing of 30 randomly selected variants from the unfiltered library showed that all 30 retained specificity for HER2. Deep learning may facilitate antibody engineering and optimization.

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Crossref · 10.1038/s41551-021-00699-9

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  • Mason et al. presented a method to train a convolutional neural network on the results of a directed evolution experiment to generate improved libraries.

    “Mason et al. [65] presented a method to train a convolutional neural network on the results of a directed evolution experiment to generate improved libraries.”

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Authors
Mason, D. M., Friedensohn, S., Weber, C. R., Jordi, C., Wagner, B., Meng, S. M., Ehling, R. A., Bonati, L., Dahinden, J., Gainza, P., Correia, B. E., & Reddy, S. T.
Affiliations
  • ETH Zurich (CH)
  • École Polytechnique Fédérale de Lausanne (CH)
Corresponding author
Reddy, Sai T.
Venue
Nature Biomedical Engineering
Published
2021-04-15
Volume
5
Issue
6
Pages
600-612
ISSN
2157-846X (ISSN-L)
OpenAlex
W3156522942
Cited by
308
References
59
Citations by year
2026: 55 · 2025: 66 · 2024: 62 · 2023: 60 · 2022: 48 · 2021: 17
FWCI
24.67
Type
journal article
Language
en
Open access
Locations
  • Nature Biomedical Engineering (publishedVersion)
  • PubMed (publishedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion, cc-by-nc-nd)
Funders
NCCR Molecular Systems Engineering
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Monoclonal and Polyclonal Antibodies Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › vaccines and immunoinformatics approaches
  • Physical Sciences › Computer Science › Computational Theory and Mathematics › Computational Drug Discovery Methods
Keywords
therapeutic antibodies, antibody engineering, trastuzumab, HER2, deep learning, antibody optimization
MeSH terms
Trastuzumab, Deep Learning, Amino Acid Sequence, Animals, Antibody Affinity, Antibody Specificity, Antigens, Humans, Hybridomas, Protein Binding, Protein Engineering, Mutagenesis, Site-Directed, Erb-b2 Receptor Tyrosine Kinases, Sequence Analysis, Protein, Recombinational DNA Repair, CRISPR-Cas Systems

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