Canine influenza viruses with modified NS1 proteins for the development of live-attenuated vaccines

Aitor Nogales, Kai Huang, Caroline Chauché, Marta L. DeDiego, Pablo R. Murcia, Colin R. Parrish, Luis Martínez-Sobrido

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Canine Influenza Virus (CIV) H3N8 is the causative agent of canine influenza, a common and contagious respiratory disease of dogs. Currently, only inactivated influenza vaccines (IIVs) are available for the prevention of CIV H3N8. However, live-attenuated influenza vaccines (LAIVs) are known to provide better immunogenicity and protection efficacy than IIVs. Influenza NS1 is a virulence factor that offers an attractive target for the preparation of attenuated viruses as LAIVs. Here we generated recombinant H3N8 CIVs containing truncated or a deleted NS1 protein to test their potential as LAIVs. All recombinant viruses were attenuated in mice and showed reduced replication in cultured canine tracheal explants, but were able to confer complete protection against challenge with wild-type CIV H3N8 after a single intranasal immunization. Immunogenicity and protection efficacy was better than that observed with an IIV. This is the first description of a LAIV for the prevention of H3N8 CIV in dogs.

Original languageEnglish (US)
Pages (from-to)1-10
Number of pages10
JournalVirology
Volume500
DOIs
StatePublished - Jan 1 2017
Externally publishedYes

Fingerprint

Attenuated Vaccines
Influenza Vaccines
Orthomyxoviridae
Canidae
Inactivated Vaccines
Proteins
Human Influenza
Dog Diseases
Viruses
Virulence Factors
Immunization
Dogs

Keywords

  • Canine influenza virus
  • Canine tracheal explant
  • Inactivated influenza vaccines
  • Influenza A virus
  • Live-attenuated influenza vaccines
  • Non-structural protein 1
  • NS1 deficient influenza viruses
  • Reverse genetics

ASJC Scopus subject areas

  • Virology

Cite this

Nogales, A., Huang, K., Chauché, C., DeDiego, M. L., Murcia, P. R., Parrish, C. R., & Martínez-Sobrido, L. (2017). Canine influenza viruses with modified NS1 proteins for the development of live-attenuated vaccines. Virology, 500, 1-10. https://doi.org/10.1016/j.virol.2016.10.008

Canine influenza viruses with modified NS1 proteins for the development of live-attenuated vaccines. / Nogales, Aitor; Huang, Kai; Chauché, Caroline; DeDiego, Marta L.; Murcia, Pablo R.; Parrish, Colin R.; Martínez-Sobrido, Luis.

In: Virology, Vol. 500, 01.01.2017, p. 1-10.

Research output: Contribution to journalArticle

Nogales, A, Huang, K, Chauché, C, DeDiego, ML, Murcia, PR, Parrish, CR & Martínez-Sobrido, L 2017, 'Canine influenza viruses with modified NS1 proteins for the development of live-attenuated vaccines', Virology, vol. 500, pp. 1-10. https://doi.org/10.1016/j.virol.2016.10.008
Nogales, Aitor ; Huang, Kai ; Chauché, Caroline ; DeDiego, Marta L. ; Murcia, Pablo R. ; Parrish, Colin R. ; Martínez-Sobrido, Luis. / Canine influenza viruses with modified NS1 proteins for the development of live-attenuated vaccines. In: Virology. 2017 ; Vol. 500. pp. 1-10.
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