title: Recombinant adeno-associated virus expressing human papillomavirus type 16 E7 peptide DNA fused with heat shock protein DNA as a potential vaccine for cervical cancer.
abstract: In this study, we explore a potential vaccine for human papillomavirus (HPV)-induced tumors, using heat shock protein as an adjuvant, a peptide vaccine for safety, and adeno-associated virus (AAV) as a gene delivery vector. The tumor vaccine was devised by constructing a chimeric gene which contained HPV type 16 E7 cytotoxic T-lymphocyte (CTL) epitope DNA (M. C. Feltkamp, H. L. Smits, M. P. Vierboom, R. P. Minnaar, B. M. de Jongh, J. W. Drijfhout, J. ter Schegget, C. J. Melief, and W. M. Kast, Eur. J. Immunol. 23:2242-2249, 1993) fused with the heat shock protein gene as a tumor vaccine delivered via AAV. Our results demonstrate that this vaccine can eliminate tumor cells in syngeneic animals and induce CD4- and CD8-dependent CTL activity in vitro. Moreover, studies with knockout mice with distinct T-cell deficiencies confirm that CTL-induced tumor protection is CD4 and CD8 dependent. Taken together, the evidence indicates that this chimeric gene delivered by AAV has potential as a cervical cancer vaccine.
authors.affiliation: Department of Microbiology and Immunology, Taipei, Taiwan, Republic of China.
authors.forename: D W
authors.initials: DW
authors.lastname: Liu
authors.forename: Y P
authors.initials: YP
authors.lastname: Tsao
authors.forename: J T
authors.initials: JT
authors.lastname: Kung
authors.forename: Y A
authors.initials: YA
authors.lastname: Ding
authors.forename: H K
authors.initials: HK
authors.lastname: Sytwu
authors.forename: X
authors.initials: X
authors.lastname: Xiao
authors.forename: S L
authors.initials: SL
authors.lastname: Chen
mesh_terms: D000818:Animals; D019677:Artificial Gene Fusion; D015152:Blotting, Northern; D015496:CD4-Positive T-Lymphocytes / Q000276:immunology; D018414:CD8-Positive T-Lymphocytes / Q000276:immunology; D019496:Cancer Vaccines / Q000276:immunology*; D002461:Cell Line, Transformed; D004279:DNA, Viral; D000229:Dependovirus / Q000235:genetics; D018984:Epitopes, T-Lymphocyte / Q000235:genetics / Q000276:immunology; D005260:Female; D005822:Genetic Vectors / Q000235:genetics; D018840:HSP70 Heat-Shock Proteins / Q000235:genetics / Q000276:immunology*; D006801:Humans; D051379:Mice; D008810:Mice, Inbred C57BL; D018345:Mice, Knockout; D018482:Muscle, Skeletal; D009856:Oncogene Proteins, Viral / Q000235:genetics / Q000276:immunology*; D027383:Papillomaviridae / Q000235:genetics / Q000276:immunology*; D050725:Papillomavirus E7 Proteins; D053918:Papillomavirus Vaccines; D010455:Peptides / Q000235:genetics / Q000276:immunology; D013602:T-Lymphocytes, Cytotoxic / Q000276:immunology; D002583:Uterine Cervical Neoplasms / Q000517:prevention & control*; D019444:Vaccines, DNA / Q000276:immunology*; D014614:Vaccines, Synthetic / Q000235:genetics / Q000276:immunology; D014765:Viral Vaccines / Q000276:immunology*
chemical_list: D019496:Cancer Vaccines; D004279:DNA, Viral; D018984:Epitopes, T-Lymphocyte; D018840:HSP70 Heat-Shock Proteins; D009856:Oncogene Proteins, Viral; D050725:Papillomavirus E7 Proteins; D053918:Papillomavirus Vaccines; D010455:Peptides; D019444:Vaccines, DNA; D014614:Vaccines, Synthetic; D014765:Viral Vaccines; C059731:oncogene protein E7, Human papillomavirus type 16