Gene

Macroeconomics

Genetic enhancement

Biology

Chromatography

Adeno-associated virus

Gene delivery

Virology

Titer

Economics

Biochemistry

Vector (molecular biology)

Protocol (science)

Radiology

Virus-like particle

Alternative medicine

Iodixanol

Genetics

Contrast medium

Medicine

Chemistry

Capsid

Virus

Recombinant DNA

Centrifugation

Production (economics)

Pathology

Molecular Therapy — Methods & Clinical Development

Adeno-associated virus (AAV) is one of the most promising gene therapy vectors and is widely used as a gene delivery vehicle for basic research. As AAV continues to become the vector of choice, it is increasingly important for new researchers to have access to a simplified production and purification protocol for laboratory grade recombinant AAV. Here we report a detailed protocol for serotype independent production of AAV using a helper-free HEK293 cell system followed by iodixanol gradient purification, a method described earlier.1 While the core principals of this mammalian AAV production system are unchanged, there have been significant advancements in the production and purification procedure that serve to boost yield, maximize efficiency, and increase the purity of AAV preps. Using this protocol, we are able to constantly obtain high quantities of laboratory grade AAV particles (>5 × 1012 vg) in a week's time, largely independent of serotype.

Helper-free Production of Laboratory Grade AAV and Purification by Iodixanol Density Gradient Centrifugation