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Coexpression of respiratory syncytial virus (RSV) fusion (F) protein and attachment glycoprotein (G) in a vesicular stomatitis virus (VSV) vector system provides synergistic effects against RSV infection in a cotton rat model.
Brakel, Kelsey A; Binjawadagi, Basavaraj; French-Kim, Kristen; Watts, Mauria; Harder, Olivia; Ma, Yuanmei; Li, Jianrong; Niewiesk, Stefan.
  • Brakel KA; Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, United States. Electronic address: brakel.6@osu.edu.
  • Binjawadagi B; Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, United States; Ceva Sante Animale, Lenexa, KS, United States.
  • French-Kim K; Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, United States.
  • Watts M; Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, United States.
  • Harder O; Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, United States.
  • Ma Y; Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, United States.
  • Li J; Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, United States.
  • Niewiesk S; Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, United States.
Vaccine ; 39(47): 6817-6828, 2021 11 16.
Article en En | MEDLINE | ID: mdl-34702618
ABSTRACT
Respiratory syncytial virus (RSV) is one of the most important causes of respiratory disease in infants, immunocompromised individuals, and the elderly. Natural infection does not result in long-term immunity, and there is no licensed vaccine. Vesicular stomatitis virus (VSV) is a commonly used vaccine vector platform against infectious diseases, and has been used as a vector for a licensed Ebola vaccine. In this study, we expressed the RSV fusion (F) protein, the RSV F protein stabilized in either a pre-fusion or a post-fusion configuration, the attachment glycoprotein (G), or the G and F proteins of RSV in combination in a VSV vector. Cotton rats were immunized with these recombinants intranasally or subcutaneously to test immunogenicity. RSV F stabilized in either a pre-fusion or a post-fusion configuration proved to be poorly immunogenic and protective when compared to unmodified F. RSV G provided partial protection and moderate levels of neutralizing antibody production, both of which improved with intranasal administration compared to subcutaneous inoculation. The most successful vaccine vector was VSV expressing both the G and F proteins after intranasal inoculation. Immunization with this recombinant induced neutralizing antibodies and provided protection from RSV challenge in the upper and lower respiratory tract for at least 80 days. Our results demonstrate that co-expression of F and G proteins in a VSV vector provides synergistic effects in inducing RSV-specific neutralizing antibodies and protection against RSV infection.
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Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Virus Sincitial Respiratorio Humano / Infecciones por Virus Sincitial Respiratorio / Fiebre Hemorrágica Ebola / Vacunas contra Virus Sincitial Respiratorio / Vacunas contra el Virus del Ébola / Estomatitis Vesicular Límite: Animals Idioma: En Año: 2021 Tipo del documento: Article

Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Virus Sincitial Respiratorio Humano / Infecciones por Virus Sincitial Respiratorio / Fiebre Hemorrágica Ebola / Vacunas contra Virus Sincitial Respiratorio / Vacunas contra el Virus del Ébola / Estomatitis Vesicular Límite: Animals Idioma: En Año: 2021 Tipo del documento: Article