Enhancement of Hepatitis E Virus DNA Vaccine Immunity by Beclin-1-Mediated Autophagy

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Naziri Hamed; ABDOLI ASGHAR; GHAEMI AMIR; MOTEVALLI FATEMEH; OWLIA PARVIZ; GHANEI MOSTAFA; BAHRAMALI GOLNAZ; SALIMI VAHID; AGHASADEGHI MOHAMMAD REZA; YAVARIAN JILA

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Journal: Jundishapur Journal of Microbiology Year:2017 | Volume:10 | Issue:12 Page(s): 0-0

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Title

Enhancement of Hepatitis E Virus DNA Vaccine Immunity by Beclin-1-Mediated Autophagy

Author(s)

Keywords

Hepatitis E Virus

Autophagy

DNA Vaccine

Abstract

Background: The Hepatitis E Virus (HEV) infection is a serious public health problem, with a mortality rate of approximately 20-25% among pregnant women. DNA vaccination was reported to induce humoral and cellular immune responses in murine models; however, a major problem of the strategy is its limited potency. Methods: In this study, we have investigated whether Beclin1, as an Autophagy-inducing based plasmid, can serve as an immunostimulatory agent and promote the HEV specific protective immunity of naked DNA Vaccine encoding truncated ORF-2 (HEV239). Plasmids encoding HEV239 with or without Beclin1 were used for the BALB/c mice immunization. Results: The results demonstrated a significant increase microtubule-associated protein light chain-3 II (LC3 II) as a marker of Autophagy in the HEK293 cell, which were transfected by pVITRO-Beclin1 plasmid. The immunological effects of adding Beclin1 to HEV239 ORF-2 DNA Vaccines were associated with the induction of the antigen-specific lymphocyte proliferation and the Th1-type cytokine (gamma-interferon (IFN-)), while there were no differences in IL-4 levels between the groups. Examination of humoral immune responses in vaccinated mice represented that immunization with pVITRO-HEV239-Beclin1 notably increased serum level of IgG2a and total IgG against HEV in comparison to the HEV239 plasmid alone. Conclusions: The strong Th1 immune response induced by the Beclin1 suggest that induction of Autophagy can be an efficient approach to enhance the immunogenicity of DNA Vaccine. This promising procedure could be further exploited as a potential therapeutic vaccine candidate in future studies.

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APA: Copy

Naziri, Hamed, ABDOLI, ASGHAR, GHAEMI, AMIR, MOTEVALLI, FATEMEH, OWLIA, PARVIZ, GHANEI, MOSTAFA, BAHRAMALI, GOLNAZ, SALIMI, VAHID, AGHASADEGHI, MOHAMMAD REZA, & YAVARIAN, JILA. (2017). Enhancement of Hepatitis E Virus DNA Vaccine Immunity by Beclin-1-Mediated Autophagy. JUNDISHAPUR JOURNAL OF MICROBIOLOGY (JJM), 10(12), 0-0. SID. https://sid.ir/paper/317951/en

Vancouver: Copy

Naziri Hamed, ABDOLI ASGHAR, GHAEMI AMIR, MOTEVALLI FATEMEH, OWLIA PARVIZ, GHANEI MOSTAFA, BAHRAMALI GOLNAZ, SALIMI VAHID, AGHASADEGHI MOHAMMAD REZA, YAVARIAN JILA. Enhancement of Hepatitis E Virus DNA Vaccine Immunity by Beclin-1-Mediated Autophagy. JUNDISHAPUR JOURNAL OF MICROBIOLOGY (JJM)[Internet]. 2017;10(12):0-0. Available from: https://sid.ir/paper/317951/en

IEEE: Copy

Hamed Naziri, ASGHAR ABDOLI, AMIR GHAEMI, FATEMEH MOTEVALLI, PARVIZ OWLIA, MOSTAFA GHANEI, GOLNAZ BAHRAMALI, VAHID SALIMI, MOHAMMAD REZA AGHASADEGHI, and JILA YAVARIAN, “Enhancement of Hepatitis E Virus DNA Vaccine Immunity by Beclin-1-Mediated Autophagy,” JUNDISHAPUR JOURNAL OF MICROBIOLOGY (JJM), vol. 10, no. 12, pp. 0–0, 2017, [Online]. Available: https://sid.ir/paper/317951/en

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