4.7 Article

A simplified purification method for AAV variant by polyethylene glycol aqueous two-phase partitioning

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BIOENGINEERED
卷 4, 期 2, 页码 103-106

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LANDES BIOSCIENCE
DOI: 10.4161/bioe.22293

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AAV variants purification; serotypes; PEG8000/(NH4)(2)SO4; ATP

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A deno-associated virus (AAV) has been widely used for in vivo study and preclinical therapy due to its ability to mediate long-term transgene expression, its lack of pathogenicity and low immunogenicity. It has been found that AAV has more than ten serotypes, which each transfect certain types of cells in the viral infected organ. Current methods for purification of different AAV serotypes utilize CsCl or iodixanol ultrahigh speed density gradient centrifugation, which is expensive and time consuming. We recently developed a simplified method, PEG/(NH4)(2)SO4 aqueous two phase partitioning, for purification of AAV serotype 2 and 8. The method does not require ultrahigh speed gradient centrifugation or chromatography. Here we further explore the simplified method for purification of other serotypes of AAV, serotype 6 and 9. This simplified method not only can be used to purify serotype 2 and 8, but also serotype 6 and 9, indicating that a variety of AAV serotypes can be purified by this method.

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