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The purification of four respiratory syncytial virus proteins and their evaluation as protective agents against experimental infection in BALB/c mice.

Authors
Type
Published Article
Journal
The Journal of general virology
Publication Date
Volume
69 ( Pt 2)
Pages
293–303
Identifiers
PMID: 3339327
Source
Medline
License
Unknown

Abstract

The fusion (F) glycoprotein, large glyco- (G) protein, phospho- (P) protein and 22K protein of respiratory syncytial (RS) virus A2 strain were purified by a combination of immunoaffinity adsorption and preparative SDS-PAGE. All four proteins elicited serum antibody in mice after repeated inoculation in adjuvant, although the magnitude of the response as measured by ELISA varied from mouse to mouse. The F protein generated neutralizing antibodies in only 50% of the mice determined to be seropositive by ELISA. The G protein also induced neutralizing antibodies but in this instance neutralization tests and ELISA titres were more closely correlated. No neutralizing activity was detected in mice immunized with the P or 22K proteins although all produced antibody detectable by ELISA. Mice immunized with either the F or the G protein were found to be protected against subsequent RS virus challenge, whether they had developed neutralizing antibody or not. Mice inoculated with the P or 22K proteins were not protected.

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