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Iranian Journal of Basic Medical Sciences، جلد ۲۳، شماره ۷، صفحات ۹۰۹-۹۱۴
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عنوان انگلیسی A new DNA vaccine expressing HspX-PPE44-EsxV fusion antigens of Mycobacterium tuberculosis induced strong immune responses
چکیده انگلیسی مقاله Objective(s): Infection with tuberculosis (TB) is regarded as a major health issue. Due to the emergence of antibiotic resistance during TB treatment, prevention via vaccination is one of the most effective ways of controlling the infection. DNA vaccines are developed at a greater pace due to their ability in generating a long-lasting immune response, higher safety compared to the live vaccines, and relatively lower cost of production. In the present study, we evaluated a new DNA vaccine encoding the fusion HspX-PPE44-EsxV antigens, separately, and in combination with Bacillus Calmette–Guérin (BCG) administration, in a prime-boost method in mice.Materials and Methods: A novel DNA vaccine encoding HspX-PPE44-EsxV fusion antigen of Mycobacterium tuberculosis was constructed, and RT-PCR and Western blot analysis were performed to verify the expression of the antigen. Female BALB/c mice were divided into five groups (PBS, BCG, pcDNA3.1 (+) vector, pDNA/HspX-PPE44-EsxV vaccine, and the BCG-prime boost groups). In order to evaluate the immunogenicity of the recombinant vector, BALB/c mice were injected with 100 μg of pDNA at 2-week intervals. Then, cytokine assay was conducted using eBioscience ELISA kits (Ebioscience, AUT) according to manufacturers’ instructions to evaluate the concentrations of IL-4, IL-12, TGF-β, and IFN-γ.Results: The concentrations of INF-γ, IL-12, and TGF-beta were significantly increased compared to the control groups (P
کلیدواژه‌های انگلیسی مقاله BCG, DNA, Mycobacterium tuberculosis PCR, Vaccine
نویسندگان مقاله | Bagher Moradi
Esfarayen Faculty of Medical Sciences, Esfarayen, Iran


| Mojtaba Sankian
Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran


| Yousef Amini
Infectious Diseases and Tropical Medicine Research Center, Resistant Tuberculosis Institute, Zahedan University of Medical Sciences, Zahedan, Iran


| Aida Gholoobi
Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran


| Zahra Meshkat
Antimicrobial Resistance Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
نشانی اینترنتی http://ijbms.mums.ac.ir/article_15571.html
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Original Article
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