EXPRESSION OF RECOMBINANT HEAT-SHOCK PROTEIN 70 OF MCAN/IR/96/LON-49, A TOOL FOR DIAGNOSIS AND FUTURE VACCINE RESEARCH

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RASOULI MANOUCHEHR; ZAVARAN HOSSEINI A.; KAZEMI BAHRAM; ALBORZI A.A.V.; KIANI S.

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Journal: Iranian Journal of Immunology Year:2009 | Volume:6 | Issue:2 Page(s): 75-86

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Title

EXPRESSION OF RECOMBINANT HEAT-SHOCK PROTEIN 70 OF MCAN/IR/96/LON-49, A TOOL FOR DIAGNOSIS AND FUTURE VACCINE RESEARCH

Author(s)

Keywords

LEISHMANIA INFANTUM

HEAT SHOCK PROTEIN 70

MOLECULAR CLONING

Abstract

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 Hi- Trap 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.

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APA: Copy

RASOULI, MANOUCHEHR, ZAVARAN HOSSEINI, A., KAZEMI, BAHRAM, ALBORZI, A.A.V., & KIANI, S.. (2009). 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 (IJI), 6(2), 75-86. SID. https://sid.ir/paper/296840/en

Vancouver: Copy

RASOULI MANOUCHEHR, ZAVARAN HOSSEINI A., KAZEMI BAHRAM, ALBORZI A.A.V., KIANI S.. 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 (IJI)[Internet]. 2009;6(2):75-86. Available from: https://sid.ir/paper/296840/en

IEEE: Copy

MANOUCHEHR RASOULI, A. ZAVARAN HOSSEINI, BAHRAM KAZEMI, A.A.V. ALBORZI, and S. KIANI, “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 (IJI), vol. 6, no. 2, pp. 75–86, 2009, [Online]. Available: https://sid.ir/paper/296840/en

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