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Screening retroviral packaging cells for highly efficient virus production by using a combined selection procedure
M Wirth1, R Grannemann, D Klehr
1GBF-Gesellschaft für Biotechnologische Forschung mbH, Genetics of Eukaryotes, Braunschweig, Germany.
Journal of Virology
|January 1, 1994
Summary
This study introduces a rapid method to isolate cells overexpressing recombinant retrovirus, significantly boosting production efficiency. High selection pressure enhances virus yield 10- to 100-fold, achieving high-titer cell lines.
Area of Science:
- Molecular Biology
- Virology
- Biotechnology
Background:
- Efficient production of recombinant retrovirus is crucial for gene therapy and biological research.
- Screening for high-producing transfected cell clones can be time-consuming and labor-intensive.
Purpose of the Study:
- To develop a fast and simple method for isolating overexpressing cells.
- To enhance the efficiency of recombinant retrovirus production.
Main Methods:
- Application of high selection pressure to transfected packaging cells.
- Isolation of clones exhibiting high levels of recombinant retrovirus production.
Main Results:
- The method significantly enhances virus production efficiency, typically 10- to 100-fold.
- Achieved cell lines with high titers of up to 10(8) colony-forming units per milliliter (CFU/ml).
Conclusions:
- The presented method is effective for rapidly isolating high-yield recombinant retrovirus-producing cell lines.
- This technique facilitates the screening process and improves overall virus production efficiency.