Construction of eukaryotic expression vectors encoding CFP-10 and ESAT-6 genes and their potential in lymphocyte proliferation |
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| Authors: | Azam Torabi Mojtaba Tahmoorespour Fatemeh Vahedi Nader Mosavari Mohammadreza Nassiri |
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| Institution: | 1.Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran ;2.Razi Vaccine and Serum Research Institute, Mashhad, Iran;3.Department of PPD and Tuberculin production, Razi Vaccine and Serum Research Institute, Karaj, Iran |
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| Abstract: | Background:
Mycobacterium (M.) bovis is the agent of bovine tuberculosis (TB) in a range of animal species, including humans. Recent advances in immunology and the molecular biology of Mycobacterium have allowed identification of a large number of antigens with the potential for the development of a new TB vaccine. The ESAT-6 and CFP-10 proteins of M. bovis are important structural and functional proteins known to be important immunogens. Methods:In the current study, the DNAs encoding these genes were utilized in the construction of pcDNA 3.1+/ESAT-6 and pcDNA3.1+/CFP-10 plasmids. After intramuscular injection of BALB/c mice with these plasmids, ESAT-6 and CFP-10 mRNA expression was assessed by RT-PCR. Mice were inoculated and boosted with the plasmids to evaluate their effects on lymphocyte proliferation.Results:Our results indicate the plasmids are expressed at the RNA level and can induce lymphocyte proliferation. Conclusion:Further study is needed to characterize the effect of these antigens on the immune system and determine whether they are effective vaccine candidates against M. bovis. Key Words: Mycobacterium bovis, DNA vaccine, ESAT-6, CFP-10, PPD, Proliferation assay, BALB/c mice |
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