H1N1 influenza virus-like particles: physical degradation pathways and identification of stabilizers.
J Pharm Sci
; 100(2): 634-45, 2011 Feb.
Article
em En
| MEDLINE
| ID: mdl-20669328
ABSTRACT
A simple and rapid approach to vaccine stabilization has been applied to a novel virus-like particle (VLP) that contains the primary influenza antigens (hemagglutinin and neuraminidase surface proteins). A complement of spectroscopic and light scattering techniques was used to characterize the physical stability of influenza VLPs as a function of temperature and pH, two pharmaceutically relevant stress factors. The resulting data set was mathematically converted into a three-color empirical phase diagram (EPD) that illustrates changes in physical state as a function of these stress factors. Conditions of temperature and pH corresponding to apparent phase boundaries in the EPD were then used to screen for inhibitors of VLP aggregation from a library of generally recognized as safe compounds. Several potent inhibitors of VLP aggregation were identified; of these, trehalose, sorbitol, and glycine were all found to exert significant stabilizing effects on viral protein tertiary structure and/or membrane integrity.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Vírion
/
Vacinas contra Influenza
/
Influenza Humana
/
Vírus da Influenza A Subtipo H1N1
/
Excipientes
Tipo de estudo:
Diagnostic_studies
/
Prognostic_studies
Limite:
Humans
Idioma:
En
Revista:
J Pharm Sci
Ano de publicação:
2011
Tipo de documento:
Article
País de afiliação:
Estados Unidos