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Improved immunogenicity of Newcastle disease virus inactivated vaccine following DNA vaccination using Newcastle disease virus hemagglutinin-neuraminidase and fusion protein genes
Journal of Veterinary Science ; : 21-26, 2016.
Article in English | WPRIM | ID: wpr-110769
ABSTRACT
The present study describes the development of DNA vaccines using the hemagglutinin-neuraminidase (HN) and fusion (F) genes from AF2240 Newcastle disease virus strain, namely pIRES/HN, pIRES/F and pIRES-F/HN. Transient expression analysis of the constructs in Vero cells revealed the successful expression of gene inserts in vitro. Moreover, in vivo experiments showed that single vaccination with the constructed plasmid DNA (pDNA) followed by a boost with inactivated vaccine induced a significant difference in enzyme-linked immunosorbent assay antibody levels (p < 0.05) elicited by either pIRES/F, pIRES/F+ pIRES/HN or pIRES-F/HN at one week after the booster in specific pathogen free chickens when compared with the inactivated vaccine alone. Taken together, these results indicated that recombinant pDNA could be used to increase the efficacy of the inactivated vaccine immunization procedure.
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Full text: Available Index: WPRIM (Western Pacific) Main subject: Vero Cells / Newcastle disease virus / Viral Vaccines / Vaccines, Inactivated / HN Protein / Chlorocebus aethiops / Chickens / Viral Fusion Proteins / Specific Pathogen-Free Organisms / Vaccines, DNA Limits: Animals Language: English Journal: Journal of Veterinary Science Year: 2016 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Vero Cells / Newcastle disease virus / Viral Vaccines / Vaccines, Inactivated / HN Protein / Chlorocebus aethiops / Chickens / Viral Fusion Proteins / Specific Pathogen-Free Organisms / Vaccines, DNA Limits: Animals Language: English Journal: Journal of Veterinary Science Year: 2016 Type: Article