Laboratory preparation of Varicella-Zoster Virus: concentration of virus-containing supernatant, use of a debris fraction and magnetofection for consistent cell-free VZV infections.
J Virol Methods
; 206: 128-32, 2014 Sep.
Article
em En
| MEDLINE
| ID: mdl-24925132
ABSTRACT
The research laboratory generation of free Varicella-Zoster Virus (VZV) from cultured yields results relatively low titers, with the result that most study of VZV infection utilizes cell-associated infection. However, important aspects of VZV-cell interaction, such as the entry mechanism and superinfection exclusion have not yet been studied in detail, in part due to the difficulty in obtaining a high titer cell free virus. Here, a method to generate relatively high-titer cell-free VZV, based on a combination of previously published techniques and subsequent concentration is described. VZV-infected cells are disrupted, sonicated and clarified by centrifugation. The cell-free virus in the supernatant is then concentrated to yield up to 10(5)PFU/ml. The cell debris pellet, which contains up to 10(6)PFU/ml can also be used for non cell-associated infection. Magnetic nanoparticles available commercially can be used to further enhance infection by cell-free-VZV. The tools described here hold promise for better understanding of important aspects of VZV-cell interactions such as entry and latency.
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MEDLINE
Assunto principal:
Vírion
/
Virologia
/
Herpesvirus Humano 3
Idioma:
En
Revista:
J Virol Methods
Ano de publicação:
2014
Tipo de documento:
Article