Intracutaneous DNA vaccination with the E8 gene of cottontail rabbit papillomavirus induces protective immunity against virus challenge in rabbits

Jiafen Hu, Ricai Han, Nancy M. Cladel, Martin D. Pickel, Neil D. Christensen

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

The cottontail rabbit papillomavirus (CRPV)-rabbit model has been used in several studies for testing prophylactic and therapeutic papillomavirus vaccines. Earlier observations had shown that the CRPV non-structural genes E1, E2, and E6 induced strong to partial protective immunity against CRPV infection. In this study, we found that CRPV E8 immunization eliminated virus-induced papillomas in EIII/JC inbred rabbits (100%) and provided partial protection (55%) against virus challenge in outbred New Zealand White rabbits. CRPV-E8 is a small open reading frame, coding for a 50-amino-acid protein, that is colinear with the CRPV E6 gene and has features similar to those of the bovine papillomavirus and human papillomavirus E5 genes. Papillomas that grew on E8-vaccinated outbred rabbits were significantly smaller than those on vector-vaccinated rabbits (P < 0.01; t test). Delayed-type hypersensitivity skin tests showed that some of the E8-vaccinated rabbits had positive responses to E8-specific peptides.

Original languageEnglish (US)
Pages (from-to)6453-6459
Number of pages7
JournalJournal of virology
Volume76
Issue number13
DOIs
StatePublished - Jun 25 2002

Fingerprint

Cottontail rabbit papillomavirus
Immunity
Vaccination
immunity
rabbits
vaccination
Rabbits
Viruses
viruses
DNA
Genes
papilloma
genes
Papillomaviridae
Papilloma
Bovine papillomavirus
Papillomavirus Vaccines
Papillomavirus Infections
delayed hypersensitivity
New Zealand White rabbit

All Science Journal Classification (ASJC) codes

  • Microbiology
  • Immunology
  • Insect Science
  • Virology

Cite this

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abstract = "The cottontail rabbit papillomavirus (CRPV)-rabbit model has been used in several studies for testing prophylactic and therapeutic papillomavirus vaccines. Earlier observations had shown that the CRPV non-structural genes E1, E2, and E6 induced strong to partial protective immunity against CRPV infection. In this study, we found that CRPV E8 immunization eliminated virus-induced papillomas in EIII/JC inbred rabbits (100{\%}) and provided partial protection (55{\%}) against virus challenge in outbred New Zealand White rabbits. CRPV-E8 is a small open reading frame, coding for a 50-amino-acid protein, that is colinear with the CRPV E6 gene and has features similar to those of the bovine papillomavirus and human papillomavirus E5 genes. Papillomas that grew on E8-vaccinated outbred rabbits were significantly smaller than those on vector-vaccinated rabbits (P < 0.01; t test). Delayed-type hypersensitivity skin tests showed that some of the E8-vaccinated rabbits had positive responses to E8-specific peptides.",
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Intracutaneous DNA vaccination with the E8 gene of cottontail rabbit papillomavirus induces protective immunity against virus challenge in rabbits. / Hu, Jiafen; Han, Ricai; Cladel, Nancy M.; Pickel, Martin D.; Christensen, Neil D.

In: Journal of virology, Vol. 76, No. 13, 25.06.2002, p. 6453-6459.

Research output: Contribution to journalArticle

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