Key result
PEG-chloroform purification without ultracentrifugation yields ~1.5x10^13 vector genomes per dish with low inflammation.
Why the study?
Conventional ultracentrifugation purification of lung-targeted rAAV results in low yield and is tedious and labor-intensive, necessitating a simpler high-quality method.
Population
Recombinant AAV producing cells and mouse/rat models for pulmonary artery hypertension research
Comparison
Purification without ultracentrifugation using PEG precipitation and chloroform extraction twice vs conventional ultracentrifugation purification
Design
Preclinical experimental study
Authors
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May enable scalable preclinical AAV delivery for PAH models; leaves open clinical translation.
A novel ultracentrifugation-free purification method for lung-targeted rAAVs achieves high yield and low inflammation, facilitating in vivo research on pulmonary artery hypertension.
Shiraishi et al. (2022) studied Pulmonary artery hypertension (target disease for vector). Purification method without ultracentrifugation (PEG precipitation and chloroform extraction) vs. Conventional method using an ultracentrifuge was evaluated on Yield and inflammation of purified rAAV. A new purification method using PEG precipitation and chloroform extraction without ultracentrifugation yielded 1.50 × 10^13 vector genomes per dish with low inflammation.
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