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논문 기본 정보

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한영우 (전북대학교) 박성옥 (전북대학교) 김아름 (전북대학교) Abi G. Aleyas (전북대학교) Junu A. George (전북대학교) 윤현아 (전북대학교) 어성국 (전북대학교)
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대한바이러스학회 JOURNAL OF BACTERIOLOGY AND VIROLOGY Journal of Bacteriology and Virology 제37권 제1호
발행연도
2007.3
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1 - 9 (9page)

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DNA vaccine approaches have been applied to generate the protective immunity against various pathogens. However, the strength of immune responses induced by DNA vaccine is weak compared with conventional vaccines. The primeboost vaccination using DNA vaccine and other viral vector has been suggested as one way to circumvent this limitation. In the present study, we used in vivo CTL activity assay to determine CD8? T cell-mediated immunity induced by prime-boost vaccination with a DNA vaccine (gB₄?????? DNA) and recombinant vaccinia virus (VVgB₄??????) expressing gB₄?????? epitope peptide (SSIEFARL) of herpes simplex virus type 1 (HSV-1) glycoprotein B (gB). The most potent in vivo CTL activity was induced in mice received VVgB₄?????? when both gB₄?????? and VVgB₄?????? were used at priming step and boosted with the alternative vaccine vector expressing whole antigen protein (gBw). Priming with vaccine vector expressing gBw followed by the use of VVgB₄?????? at boosting step also induced strong in vivo CTL activity. We also examined in vivo CTL activity after immunization of mice with epitope-expressing vaccine vector at both priming and boosting step. Curiously, in vivo CTL activity mediated by CD8? T cells was strongly elicited at memory stage when animals were primed with VVgB₄?????? and subsequently boosted with gB₄?????? DNA. Because the use of VVgB₄?????? at priming followed by boosting with gB₄?????? DNA induced most optimal immunity, these results suggest that the order of vaccine type should be carefully considered when used vaccine type expressing only epitope for prime-boost vaccination.

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