AI-based antibody discovery platform identifies novel, diverse, and pharmacologically active therapeutic antibodies against multiple SARS-CoV-2 strains

基于人工智能的抗体发现平台可识别针对多种 SARS-CoV-2 毒株的新型、多样且具有药理活性的治疗性抗体

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作者:Cristina Moldovan Loomis, Thomas Lahlali, Danielle Van Citters, Megan Sprague, Gregory Neveu, Laurence Somody, Christine C Siska, Derrick Deming, Andrew J Asakawa, Tileli Amimeur, Jeremy M Shaver, Caroline Carbonelle, Randal R Ketchem, Antoine Alam, Rutilio H Clark

Background

We are entering a new era of antibody discovery and optimization where machine learning (ML) processes will become indispensable for the design and development of therapeutics.

Conclusions

These first-generation antibodies, without the need for affinity maturation, exhibited neutralization of SARS-CoV-2 viral infectivity across multiple strains and indicated high developability potential.

Methods

We have constructed a Humanoid Antibody Library for the discovery of therapeutics that is an initial step towards leveraging the utility of artificial intelligence and ML. We describe how we began our validation of the library for antibody discovery by isolating antibodies against a target of pandemic concern, SARS-CoV-2. The two main antibody quality aspects that we focused on were functional and biophysical characterization.

Results

The applicability of our platform for effective therapeutic antibody discovery is demonstrated here with the identification of a panel of human monoclonal antibodies that are novel, diverse, and pharmacologically active. Conclusions: These first-generation antibodies, without the need for affinity maturation, exhibited neutralization of SARS-CoV-2 viral infectivity across multiple strains and indicated high developability potential.

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