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Iranian Journal of Biotechnology، جلد ۱۶، شماره ۴، صفحات ۲۴۸-۲۵۷
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عنوان انگلیسی Immunogenicity of the Multi-Epitopic Recombinant Glycoproteins of Newcastle Disease Virus: Implications for the Serodiagnosis Applications
چکیده انگلیسی مقاله Background: Newcastle disease virus (NDV) is a dangerous viral disease, infecting a broad range of birds, and has a fatal effect on the poultry industries. The attachment and consequently fusion of the virus to the host cell membrane is directed by the two superficial glycoproteins, the hemagglutinin-neuraminidase (HN) and the fusion (F) which is considered as the important targets for the poultry immune response.Objectives: The principal goal of this investigation was to realize the potential efficacy of the E. coli expression system for the production of the multi-epitopic HN, and F proteins with respect to the ability for the stimulation of the immune system and production of the cross-reactive antibodies in mice.Materials and Methods: The recombinant HN and F (rHN, rF) have accumulated almost 40% of the total bacterial proteins. The presence of rHN and rF proteins recognized by the Western blotting with specific anti-HN, anti-F, anti-Newcastle B1, and anti-poly 6x His-tag antibodies. Furthermore, both rHN and rF have shown the specific reactivity against the Newcastle B1 antiserum as a standard strain.Results: The ELISA analysis showed that the higher dilutions of the antibody against Newcastle B1 could react with the as least quantity as 100 ng of the purified rHN, and rF. Cross-reactivity analysis of the sera from the mice immunized with Newcastle B1 in two time points indicated that the raise of anti-Newcastle B1, anti-HN and anti-F antibodies peaked at 28 days post immunization (dpi). Moreover, temporal variation in IgG titration between both time points was significant at 5% probability level.Conclusion: The results provided valuable information about the cross-reactivity patterns and biological activity of the multi-epitopic proteins compared to the NDV standard strain which was determined by the Western blotting and ELISA.
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نویسندگان مقاله Mohammad Javad Motamedi |
Department of Agricultural Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran.

Shahla Shahsavandi |
Razi Vaccine and Serum Research Institute, Karaj, Iran

Jafar Amani |
Applied Microbiology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran

Rouhollah Kazemi |
Department of Agricultural Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran.

Somayeh Takrim |
Department of Agricultural Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran.

Mahyat Jafari |
Department of Agricultural Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran.

Ali Hataf Salmanian |
Department of Agricultural Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran.

نشانی اینترنتی http://www.ijbiotech.com/article_64718_905bdf9afcc5fa4b3049305549c2ef21.pdf
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