Abstract
Papillomaviruses are a diverse group of pathogens that infect the skin and mucosal tissues of humans and various animal species. The viral genome is a circular, double-stranded DNA molecule approximately 8-kb in length. The non-enveloped papillomavirus capsid is composed of a virally encoded major coat protein, L1, and a minor coat protein, L2. L1 and L2 co-assemble when expressed in mammalian cells, and can promiscuously encapsidate essentially any <8-kb plasmid present in the cell nucleus. In the last several years, there has been rapid development of techniques for intracellular production of papillomavirus-based gene transfer vectors (also known as pseudoviruses). This unit outlines the production and propagative amplification of papillomaviral vectors. The system represents a highly tractable method for converting pre-existing mammalian expression plasmids into infectious virus stocks. The resulting vectors have utility for in vitro, as well as in vivo gene delivery applications.
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