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|Title:||Immunization of flavivirus West Nile recombinant envelope domain III protein induced specific immune response and protection against West Nile virus infection|
|Authors:||Chu, J.-H.J. |
|Citation:||Chu, J.-H.J., Chiang, C.-C.S., Ng, M.-L. (2007-03-01). Immunization of flavivirus West Nile recombinant envelope domain III protein induced specific immune response and protection against West Nile virus infection. Journal of Immunology 178 (5) : 2699-2705. ScholarBank@NUS Repository.|
|Abstract:||The domain III of the West Nile virus (WNV) envelope glycoprotein (E) was shown to serve as virus attachment domain to the cellular receptor, and neutralizing Abs have been mapped to this specific domain. In this study, domain III of the WNV E protein (WNV E DIII) was expressed as a recombinant protein and its potential as a subunit vaccine candidate was evaluated in BALB/C mice. Immunization of WNV E Dili protein with oligodeoxynucleotides (CpG-DNA) adjuvant by i.p. injection was conducted over a period of 3 wk. The immunized mice generated high titer of WNV-neutralizing Abs. Murine Ab against WNV E Dili protein was also capable of neutralizing Japanese encephalitis virus. The IgG isotypes generated were predominantly IgG2a in the marine sera against the recombinant protein. Splenocyte cultures from the mice coadministrated with WNV E Dili protein and CpG secreted large amounts of IFN-γ and IL-2 and showed proliferation of T cells in the presence of WNV E DIII protein. Overall, this study highlighted that recombinant WNV E DIII protein delivered in combination with CpG adjuvant to mice generated a Th1 immune response type against WNV and can serve as a potential vaccine to prevent WNV infection. Copyright © 2007 by The American Association of Immunologists, Inc.|
|Source Title:||Journal of Immunology|
|Appears in Collections:||Staff Publications|
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