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A Flow Cytometry-Based High-Throughput Technique for Screening Integrin-Inhibitory Drugs
Published on: February 2, 2024
High-throughput screening of single-chain antibodies using multiplexed flow cytometry
Joanne Ayriss1, Travis Woods, Andrew Bradbury
1Bioscience Division, Mail Stop M888, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, New Mexico 87545, USA.
Journal of Proteome Research
|March 3, 2007
Summary
We developed a new multiplexed flow cytometry method for high-throughput screening of affinity reagents. This approach streamlines proteomic analysis, reducing time and antigen use compared to traditional methods.
Area of Science:
- Proteomics
- Biotechnology
- Analytical Chemistry
Background:
- High-throughput screening is crucial for identifying affinity reagents in proteomic projects.
- Standard methods like ELISA are time-consuming and require significant antigen.
- A bottleneck exists in efficiently generating and characterizing affinity reagents for large-scale projects.
Purpose of the Study:
- To develop and validate a streamlined high-throughput screening method for affinity reagents.
- To enable comprehensive functional profiling of antibody clones in primary screens.
- To overcome limitations of existing methods in terms of speed, efficiency, and data richness.
Main Methods:
- Utilized multiplexed flow cytometry for simultaneous analysis.
- Assessed relative expression levels, nonspecific binding, and fine specificities.
- Developed a method for generating complete functional profiles of affinity reagent clones.
Main Results:
- Achieved significant reductions in analysis time and antigen consumption.
- Generated high-quality, quantitative data in the primary screening phase.
- Successfully profiled multiple parameters of affinity reagents efficiently.
Conclusions:
- The developed method offers substantial advantages over standard ELISA techniques.
- This approach redefines parameters for initial affinity reagent identification from combinatorial libraries.
- A significant bottleneck in proteomic-scale affinity reagent generation has been removed.
