Characterization and immunogenicity of norovirus capsid-derived virus-like particles purified by anion exchange chromatography.
Arch Virol
; 158(5): 933-42, 2013 May.
Article
em En
| MEDLINE
| ID: mdl-23229011
ABSTRACT
Recombinant baculovirus (BV) expression systems are widely applied in the production of viral capsid proteins and virus-like particles (VLPs) for use as immunogens and vaccine candidates. Traditional density gradient purification of VLPs does not enable complete elimination of BV-derived impurities, including live viruses, envelope glycoprotein gp64 and baculoviral DNA. We used an additional purification system based on ionic strength to purify norovirus (NoV) GII-4 capsid-derived VLPs. The anion exchange chromatography purification led to highly purified VLPs free from BV impurities with intact morphology. In addition, highly purified VLPs induced strong NoV-specific antibody responses in BALB/c mice. Here, we describe a method for NoV VLP purification and several methods for determining their purity, including quantitative PCR for BV DNA detection.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Vacinas Virais
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Capsídeo
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Cromatografia por Troca Iônica
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Norovirus
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Proteínas do Capsídeo
Limite:
Animals
Idioma:
En
Ano de publicação:
2013
Tipo de documento:
Article