title: A vesicular stomatitis pseudovirus expressing the surface glycoproteins of influenza A virus.
abstract: Pseudotyped viruses bearing the glycoprotein(s) of a donor virus over the nucleocapsid core of a surrogate virus are widely used as safe substitutes for infectious virus in virology studies. Retroviral particles pseudotyped with influenza A virus glycoproteins have been used recently for the study of influenza hemagglutinin and neuraminidase-dependent processes. Here, we report the development of vesicular-stomatitis-virus-based pseudotypes bearing the glycoproteins of influenza A virus. We show that pseudotypes bearing the hemagglutinin and neuraminidase of H5N1 influenza A virus mimic the wild-type virus in neutralization assays and sensitivity to entry inhibitors. We demonstrate the requirement of NA for the infectivity of pseudotypes and show that viruses obtained with different NA proteins are significantly different in their transduction activities. Inhibition studies with oseltamivir carboxylate show that neuraminidase activity is required for pseudovirus production, but not for the infection of target cells with H5N1-VSV pseudovirus. The HA-NA-VSV pseudoviruses have high transduction titers and better stability than the previously reported retroviral pseudotypes and can replace live influenza virus in the development of neutralization assays, screening of potential antivirals, and the study of different HA/NA reassortants.
authors.affiliation: Department of Medicine, Novosibirsk State University, Novosibirsk, Russia, cheresiz@yandex.ru.
authors.forename: S V
authors.initials: SV
authors.lastname: Cheresiz
authors.forename: A A
authors.initials: AA
authors.lastname: Kononova
authors.forename: Yu V
authors.initials: YV
authors.lastname: Razumova
authors.forename: T S
authors.initials: TS
authors.lastname: Dubich
authors.forename: A A
authors.initials: AA
authors.lastname: Chepurnov
authors.forename: A A
authors.initials: AA
authors.lastname: Kushch
authors.forename: R
authors.initials: R
authors.lastname: Davey
authors.forename: A G
authors.initials: AG
authors.lastname: Pokrovsky
mesh_terms: D057134:Antibodies, Neutralizing / Q000276:immunology; D000914:Antibodies, Viral / Q000276:immunology; D002678:Chimera / Q000235:genetics; D057809:HEK293 Cells; D019267:Hemagglutinin Glycoproteins, Influenza Virus / Q000096:biosynthesis / Q000235:genetics* / Q000276:immunology; D006801:Humans; D053124:Influenza A Virus, H5N1 Subtype / Q000235:genetics*; D009439:Neuraminidase / Q000235:genetics* / Q000276:immunology; D053139:Oseltamivir / Q000031:analogs & derivatives / Q000494:pharmacology; D054243:Vesicular Stomatitis / Q000473:pathology / Q000821:virology; D014721:Vesicular stomatitis Indiana virus / Q000235:genetics* / Q000378:metabolism / Q000472:pathogenicity*
chemical_list: D057134:Antibodies, Neutralizing; D000914:Antibodies, Viral; D019267:Hemagglutinin Glycoproteins, Influenza Virus; D053139:Oseltamivir; D009439:Neuraminidase; C535162:oseltamivir carboxylate