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Mammalian Libraries and Microfluidics: Enhancing Antibody Discovery with Novel Functional Screening

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Mammalian Libraries and Microfluidics: Enhancing Antibody Discovery with Novel Functional Screening

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Summary

Antibody discovery just got a major upgrade. This groundbreaking 2023 study shows how combining mammalian display libraries with high-throughput microfluidic screening can accelerate the hunt for functional, drug-ready antibodies. By leveraging full immune repertoires in mammalian cells, the authors unlock antibody diversity with a unique “display-to-secretion” switchable system — giving you the best of both worlds.

At the heart of this approach? Sphere Bio’s Cyto-Mine® platform. Our picodroplet microfluidics technology makes it possible to rapidly screen millions of mammalian cells at single-cell resolution, all while maintaining cell viability and functional integrity. This study highlights how Cyto-Mine® powers a “Function First” screening strategy, prioritizing biologically relevant hits from the get-go — saving you time, reducing false positives, and supercharging your antibody discovery workflow.

Key findings

Utilizing a “Function First” approach allows for the screening of T-Cell engagers, internalization of Antibody Drug Conjugates (ADCs), and identification of target agonists.
Mammalian libraries allow for the use of full immune repertoires to allow for antibody pre-selection.
Utilization of CHO cell synchronization protocols allows for reduction in assay variability and enables prolonged incubation for longer functional readouts.

Why this study matters

Full immune repertoire screening: Mammalian libraries capture real antibody diversity, enabling early pre-selection of the most promising candidates.
Function First approach: Identify potent T-cell engagers, antibody-drug conjugate internalizers, and target agonists in a single integrated workflow — no need to compromise speed for functionality.
Improved assay robustness: Using CHO cell synchronization protocols reduces variability, allowing longer incubation for more meaningful functional readouts.
Seamless integration: Cyto-Mine®’s automated picodroplet technology combines sorting, analysis, and isolation into one easy-to-use system, accelerating your path from discovery to development.

Study details

  • Study Title: Mammalian display to secretion switchable libraries for antibody preselection and high throughput functional screening
  • Authors: Ramona Gaa, Hannah Melina Mayer, Daniela Noack, Kavita Kumari, Ralf Guenther, Shang-Pu Tsai, Qingyong Ji & Achim Doerner
  • Published In: mAbs, 2023
  • DOI: 10.1080/19420862.2023.2251190
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