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FOR AUTHORS Bratislava Medical Journal 2017 Bratislava Medical Journal Vol.118, No.9, p.564-569, 2017
FOR AUTHORS Bratislava Medical Journal 2017 Bratislava Medical Journal Vol.118, No.9, p.564-569, 2017
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Bratislava Medical Journal Vol.118, No.9, p.564-569, 2017 |
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| Title: Improving the potency of DNA vaccine encoding HIV-1 Nef antigen using two endogenous adjuvants in mouse model | ||
| Author: B. S. Jafarzade, S. M. Sadat, R. Yaghobi, A. Bolhassani | ||
| Abstract: BACKGROUND: DNA immunization can induce long-term immune responses, which are required to design an effective HIV vaccine. It was shown that antigen-expressing plasmids can increase the protective immunity against infectious diseases such as: influenza and malaria. However, DNA-based immunizations have poor immunogenicity, thus the use of potent immunoadjuvants can enhance their potency. METHODS: In the current study, preparation of the recombinant HIV-1 Nef, Gp96 and HMGB1 DNA constructs was performed in bacterial system. Then, the immunogenicity of DNA construct harboring HIV-1 Nef gene (pcDNA-Nef) was studied using two endogenous adjuvants (pcDNA-HMGB1 and pcDNA-Gp96) in BALB/c mouse model. RESULTS: Our data showed that co-injection of pcDNA-Nef with pcDNA-HMGB1 effectively raised both humoral and cell-mediated immune responses in mice as compared to pcDNA-Nef adjuvanted with pcDNA-gp96. Indeed, co-immunization of HIV-1 Nef DNA with HMGB1 DNA significantly induced high levels of IgG2a and IFN-γ directed toward Th1 responses and also cytotoxic T lymphocytes (CTLs) activity in comparison with other immunized groups. CONCLUSION: These findings suggest that the full length of HMGB1 gene could be a more efficient adjuvant for improvement of therapeutic HIV DNA-based immunization compared to the full length of gp96 gene (Tab. 1, Fig. 3, Ref. 58). |
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| Keywords: HIV-1 Nef, Gp96, HMGB1, adjuvant, therapeutic vaccine | ||
| Published online: 18-Oct-2017 | ||
| Year: 2017, Volume: 118, Issue: 9 | Page From: 564, Page To: 569 | |
| doi:10.4149/BLL_2017_108 |
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