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Rasouli, Manoochehr, Zavaran Hoseini, Ahmad, Karimi, Bahram, Alborzi, Abdolvahab, Kiany, Simin. (1388). Expression of Recombinant Heat-Shock Protein 70 of MCAN/IR/96/LON-49, a Tool for Diagnosis and Future Vaccine Research. سامانه مدیریت نشریات علمی, 6(2), 75-86.
Manoochehr Rasouli; Ahmad Zavaran Hoseini; Bahram Karimi; Abdolvahab Alborzi; Simin Kiany. "Expression of Recombinant Heat-Shock Protein 70 of MCAN/IR/96/LON-49, a Tool for Diagnosis and Future Vaccine Research". سامانه مدیریت نشریات علمی, 6, 2, 1388, 75-86.
Rasouli, Manoochehr, Zavaran Hoseini, Ahmad, Karimi, Bahram, Alborzi, Abdolvahab, Kiany, Simin. (1388). 'Expression of Recombinant Heat-Shock Protein 70 of MCAN/IR/96/LON-49, a Tool for Diagnosis and Future Vaccine Research', سامانه مدیریت نشریات علمی, 6(2), pp. 75-86.
Rasouli, Manoochehr, Zavaran Hoseini, Ahmad, Karimi, Bahram, Alborzi, Abdolvahab, Kiany, Simin. Expression of Recombinant Heat-Shock Protein 70 of MCAN/IR/96/LON-49, a Tool for Diagnosis and Future Vaccine Research. سامانه مدیریت نشریات علمی, 1388; 6(2): 75-86.

Expression of Recombinant Heat-Shock Protein 70 of MCAN/IR/96/LON-49, a Tool for Diagnosis and Future Vaccine Research

Iranian Journal of Immunology
مقاله 3، دوره 6، شماره 2، شهریور 2009، صفحه 75-86    اصل مقاله (560.72 K)
نوع مقاله: Original Article
نویسندگان
Manoochehr Rasouli1؛ Ahmad Zavaran Hoseini* 1؛ Bahram Karimi2؛ Abdolvahab Alborzi3؛ Simin Kiany3
1Department of Immunology, Faculty of Medical Sciences, Tarbiat Modares University
2Department of Parasitology, Shahid Beheshti University, Tehran
3Division of Immunology, Prof. Alborzi Clinical Microbiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
چکیده
Background: Heat shock protein 70 (HSP70) is present in all organisms studied so far, and is a major immunogen in infections caused by pathogens including Leishmania spp.
Objective: The aim of this study was to clone and express HSP70 from L. infantum strain MCAN/IR/96/LON-49 and evaluate antibody response against HSP70 in visceral leishmaniasis (VL).
Methods: The L. infantum HSP70 gene segment was amplified by specific primers. It was cloned into pTZ57R vector and subcloned into pET32a (+) expression vector. The new construct was transformed in the E.coli Rosetta strain, and HSP70 protein was expressed in the presence of 1 mM IPTG and purified using a HiTrap chelating column. Antibody responses against HSP70 were determined by ELISA in 37 patients with visceral leishmaniasis and 63 healthy controls.
Results: Expression of HSP70 protein was confirmed using SDS-PAGE electrophoresis and dot blot with an anti-His tag antibody. There was no difference between the sequence of nucleotides of the HSP70 gene in the present study and other reported sequences. The ELISA results indicated that the sera of 81.1% (30/37) of the patients and 6.3% (5/63) of controls reacted to L. infantum HSP70.
Conclusion: The conservative nature of the HSP70 molecule is an advantage in vaccine studies, because of minor differences (6%) between the nucleotide sequences and consequently the similarity in amino acid sequences in various strains of L. infantum. It could therefore be used in vaccine research against leishmaniasis and also as a tool for serodiagnosis.
کلیدواژه‌ها
Leishmania infantum؛ heat shock protein 70؛ Molecular cloning
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