Respiratory syncytial virus subunit vaccine based on a recombinant fusion protein expressed transiently in mammalian cells

Autor: Nicole Westerfeld, Sophie Nallet, Lucia Baldi, Iwo König, David L. Hacker, Mario Amacker, Christiane Zaborosch, Rinaldo Zurbriggen, Florian M. Wurm
Rok vydání: 2009
Předmět:
Zdroj: Vaccine. 27:6415-6419
ISSN: 0264-410X
DOI: 10.1016/j.vaccine.2009.06.019
Popis: Although respiratory syncytial virus (RSV) causes severe lower respiratory tract infection in infants and adults at risk, no RSV vaccine is currently available. In this report, efforts toward the generation of an RSV subunit vaccine using recombinant RSV fusion protein (rRSV-F) are described. The recombinant protein was produced by transient gene expression (TGE) in suspension-adapted human embryonic kidney cells (HEK-293E) in 4 L orbitally shaken bioreactors. It was then purified and formulated in immunostimulating reconstituted influenza virosomes (IRIVs). The candidate vaccine induced anti-RSV-F neutralizing antibodies in mice, and challenge studies in cotton rats are ongoing. If successful in preclinical and clinical trials, this will be the first recombinant subunit vaccine produced by large-scale TGE in mammalian cells.
Databáze: OpenAIRE