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- Title
DNA Vaccine Encoding a Modified Hemagglutinin Trimer of Avian Influenza A Virus H5N8 Protects Mice from Viral Challenge.
- Authors
Litvinova, Victoria R.; Rudometov, Andrey P.; Rudometova, Nadezhda B.; Kisakov, Denis N.; Borgoyakova, Mariya B.; Kisakova, Lyubov A.; Starostina, Ekaterina V.; Fando, Anastasia A.; Yakovlev, Vladimir A.; Tigeeva, Elena V.; Ivanova, Ksenia I.; Gudymo, Andrei S.; Ilyicheva, Tatiana N.; Marchenko, Vasiliy Yu.; Sergeev, Artemiy A.; Ilyichev, Alexander A.; Karpenko, Larisa I.
- Abstract
The development of a safe and effective vaccine against avian influenza A virus (AIV) H5N8 is relevant due to the widespread distribution of this virus in the bird population and the existing potential risk of human infection, which can lead to significant public health concerns. Here, we developed an experimental pVAX-H5 DNA vaccine encoding a modified trimer of AIV H5N8 hemagglutinin. Immunization of BALB/c mice with pVAX-H5 using jet injection elicited high titer antibody response (the average titer in ELISA was 1 × 105), and generated a high level of neutralizing antibodies against H5N8 and T-cell response, as determined by ELISpot analysis. Both liquid and lyophilized forms of pVAX-H5 DNA vaccine provided 100% protection of immunized mice against lethal challenge with influenza A virus A/turkey/Stavropol/320-01/2020 (H5N8). The results obtained indicate that pVAX-H5 has good opportunities as a vaccine candidate against the influenza A virus (H5N8).
- Subjects
AVIAN influenza A virus; DNA vaccines; VIRAL shedding; HEMAGGLUTININ; INFLUENZA A virus; BIRD populations
- Publication
Vaccines, 2024, Vol 12, Issue 5, p538
- ISSN
2076-393X
- Publication type
Article
- DOI
10.3390/vaccines12050538