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Iranian Journal of Basic Medical Sciences، جلد ۲۰، شماره ۱۰، صفحات ۱۱۱۹-۱۱۲۴
عنوان فارسی
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عنوان انگلیسی A study on the immune response induced by a DNA vaccine encoding Mtb32C-HBHA antigen of Mycobacterium tuberculosis
چکیده انگلیسی مقاله Objective(s): Tuberculosis (TB) has still remained a global health issue. One third of the world's population is infected with tuberculosis and the current BCG vaccine has low efficiency; hence, it is necessary to develop a new vaccine against TB. The aim of the current study was to evaluate the efficiency of a novel DNA vaccine encoding Mtb32C-HBHA antigen in inducing specific immune responses against Mycobacterium tuberculosis. Materials and Methods: A DNA plasmid vaccine expressing Mtb32C-HBHA fusion protein was constructed and its ability in protein expression was examined by RT-PCR and Western blot methods. Female BALB/c mice were vaccinated with 100 μg of purified recombinant vector in an attempt to assess its immunogenicity and protective efficacy. Further, the cytokines, IFN-γ, IL-12, IL-4, IL-10, and TGF-β were assessed. Results: The levels of all the studied cytokines were significantly increased (P< 0.05) compared with the control group. IFN-γ production in the group receiving DNA vaccine plus BCG was increased compared with those receiving only DNA vaccine or BCG (P< 0.001). Conclusion: The immunogenicity of the new chimeric DNA vaccine was confirmed alone and in combination with BCG. Based on the results of the current study, the constructed DNA vaccine induced the expression of Mtb32C-HBHA fusion protein efficiently in vitro. Furthermore, high levels of the specific cytokines were induced in mice. By using this DNA vaccine as a booster after BCG, higher amounts of IFN-γ will be produced.
کلیدواژه‌های انگلیسی مقاله BCG, DNA, Mycobacterium tuberculosis, PCR, Plasmid
نویسندگان مقاله رقیه تیمورپور | roghayeh teimourpour
department of microbiology, school of medicine, ardabil university of medical sciences, ardabil, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی اردبیل (Ardabil university of medical sciences)

هادی پیری دوگاهه | hadi peeridogaheh
department of microbiology, school of medicine, ardabil university of medical sciences, ardabil, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی اردبیل (Ardabil university of medical sciences)

امیر تیمورپور | amir teimourpour
department of epidemiology and biostatistics, school of public health, tehran university of medical science, tehran, iran

سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

محسن ارزنلو | mohsen arzanlou
department of microbiology, school of medicine, ardabil university of medical sciences, ardabil, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی اردبیل (Ardabil university of medical sciences)

زهرا مشکات | zahra meshkat
antimicrobial resistance research center, mashhad university of medical sciences, mashhad, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (Mashhad university of medical sciences)

نشانی اینترنتی http://ijbms.mums.ac.ir/article_9445.html
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Original Article
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