Characterization of a recombinant fowlpox virus expressing the native hexon of hemorrhagic enteritis virus

C. J. Cardona, K. Nazerian, W. M. Reed, R. F. Silva

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

The structure of the icosahedral adenovirus capsid is highly conserved among Adenoviridae. In its native form, the hexon is the major capsid protein. The nascent hexon requires the 100 kDa folding protein to fold into its native, trimeric form. The hexon and 100 kDa folding protein were co-expressed in a fowlpox virus “FPV” vector and in the recombinant FPVs “rFPVs” in which the hexon and 100 kDa folding protein genes are cloned head to tail, the native hexon could be detected with indirect immunofluorescence and immunoprecipitation using a native hexon monoclonal antibody. The FPV-@X100 construct, in which the 100 kDa folding protein gene follows the hexon gene in a head to tail fashion, elicited the best humoral response in chickens. An attenuated HEV commercial vaccine elicited higher and longer lasting anti-HEV titers than FPV-@X100. Humoral immunity was also compared in turkeys inoculated with rFPVs expressing the hexon alone, the 100 kDa folding protein alone, or expressing both genes in different configurations. No anti-HEV humoral immune response was detected in turkeys inoculated with the rFPVs expressing the hexon alone or the 100 kDa folding protein alone.

Original languageEnglish (US)
Pages (from-to)353-361
Number of pages9
JournalVirus Genes
Volume22
Issue number3
DOIs
StatePublished - Jan 1 2001

Keywords

  • Adenovirus
  • Avian
  • Fowlpox
  • Hemorrhagic enteritis
  • Vaccine
  • Vector

Fingerprint Dive into the research topics of 'Characterization of a recombinant fowlpox virus expressing the native hexon of hemorrhagic enteritis virus'. Together they form a unique fingerprint.

Cite this