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Improved cell line development by a high throughput affinity capture surface display technique to select for high
1Animal Cell Technology Group, School of Chemical Engineering, The University of Birmingham, Edgbaston, Birmingham, UK.
Journal of Immunological Methods
|December 14, 1999
Summary
This study introduces a new method for quickly finding rare cells that produce specific proteins. The process uses a special surface and fluorescent tags to sort cells efficiently, improving on traditional, slower techniques.
Area of Science:
- Biotechnology
- Cell Biology
- Protein Engineering
Background:
- Identifying rare cells secreting specific proteins is crucial for research and therapeutics.
- Traditional cell screening methods are often time-consuming and lack efficiency for low-abundance targets.
Purpose of the Study:
- To develop a rapid and objective process for selecting rare cells based on secreted protein quantity.
- To improve the efficiency and throughput of rare cell selection compared to existing methods.
Main Methods:
- Construction of an immobilized affinity surface display matrix for specific binding of secreted target proteins.
- Detection of bound target proteins using a fluorescently labeled ligand.
- Sorting of high-fluorescence cells via conventional flow cytometry.
Main Results:
- The novel process allows for rapid and quantitative cell selection.
- The entire procedure can be completed in under 4 hours, analyzing up to five million cells.
- Significantly higher probability of identifying low-abundance, high-secreting cells compared to traditional methods.
Conclusions:
- This innovative technique offers a substantial advancement in rare cell selection.
- The method provides a faster, more efficient, and objective approach for analyzing large cell populations based on protein secretion.