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Related Experiment Video

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Small-Scale Recombinant Adeno-Associated Virus Purification.

Corinna Burger1, Kevin R Nash2

  • 1Department of Neurology, Medical Sciences Center, University of Wisconsin-Madison, 1300 University Avenue, Room 73 Bardeen, Madison, WI, 53706, USA. burger@neurology.wisc.edu.

Methods in Molecular Biology (Clifton, N.J.)
|November 28, 2015
PubMed
Summary

This study details a small-scale method for purifying recombinant adeno-associated virus (rAAV) vectors. The optimized protocol yields high-concentration viral preparations suitable for gene therapy research.

Keywords:
Adeno-associated virusIodixanol gradient purificationTissue culture

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Area of Science:

  • Biotechnology
  • Gene Therapy
  • Molecular Biology

Background:

  • Recombinant adeno-associated virus (rAAV) vectors are widely used in gene therapy due to efficient gene transfer and a favorable safety profile.
  • Diverse rAAV serotypes offer tailored tropism and distribution, enhancing experimental design flexibility.
  • AAV's lack of cytopathic effect necessitates specific purification strategies involving cell extraction.

Purpose of the Study:

  • To describe a small-scale production method for purifying recombinant adeno-associated virus (rAAV) vectors.
  • To provide a protocol yielding high-concentration viral preparations from HEK 293 cells.

Main Methods:

  • Utilizes human embryonic kidney-derived 293B (HEK 293) cells for viral vector production.
  • Employs gradient ultracentrifugation and chromatography for viral vector purification.
  • Details a small-scale method using 10-20 plates (15 cm) of HEK 293 cells.

Main Results:

  • Achieves a final viral preparation concentration of 5 x 10^12 to 1 x 10^13 genome copies/ml.
  • Yields approximately 300 μl of purified rAAV vector.
  • Demonstrates a reproducible small-scale purification process.

Conclusions:

  • The described method provides an efficient way to produce high-titer rAAV vectors on a small scale.
  • This protocol is valuable for researchers requiring purified rAAV for gene therapy studies and preclinical trials.
  • The method ensures high-quality viral preparations suitable for various experimental applications.