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Related Experiment Videos

Rapid titer determination using quantitative real-time PCR.

N Sanburn1, K Cornetta

  • 1Indiana University Vector Production Facility, Department of Medicine, Indiana University, Indianapolis, IN 46202-5121, USA.

Gene Therapy
|August 24, 1999
PubMed
Summary
This summary is machine-generated.

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Quantitative real-time PCR offers a fast and accurate method for determining retroviral vector titers. This technique enhances the identification of high-titer producer cells, crucial for vector development.

Area of Science:

  • Molecular Biology
  • Virology

Background:

  • Accurate retroviral vector titration is essential for gene therapy and biological research.
  • Traditional methods can be time-consuming and labor-intensive.

Purpose of the Study:

  • To evaluate quantitative real-time PCR for retroviral vector titer determination.
  • To assess the efficiency and accuracy of this method compared to biologic titers.

Main Methods:

  • RNA extraction from vector supernatant.
  • One-step reverse transcription PCR (RT-PCR) using ABI Prism 7700 Sequence Detector.
  • Quantitative analysis of vector particles per reaction and per milliliter of supernatant.

Main Results:

  • Real-time PCR demonstrated quantitative accuracy over a broad range (10^1 to 6 x 10^5 vector particles/reaction).

Related Experiment Videos

  • Results closely correlated with biologic titration methods.
  • Titer determination was achieved within 8 hours, enabling high sample throughput.

    • Conclusions:

    • Quantitative real-time PCR provides a rapid, accurate, and efficient method for retroviral vector titration.
    • This technique improves the identification of high-titer producer cells.
    • It supports the development of vectors lacking selectable markers.