title: Molecular Cloning and Expression an 8-kDa Subunit of Antigen B from G1 strain of Echinococcus granulosus.
abstract: BACKGROUND
  Echinococcosis or hydatidosis is a chronic, zoonotic worldwide infection caused by the larval stage of the dog taeniid tapeworm Echinococcus granulosus. Vaccination has been considered as one of the ways to prevent of hydatidosis in recent decades. The aim of this study was to construct a pcDNA3.1 eukaryotic expression vector containing the subunit 8-kDa antigen B (Hyd1) of E. granulosus (G1 strain) and investigate its capability to induce protein expression in mammalian cell line, as a basis toward developing a DNA vaccine against hydatidosis.
  
  
  METHODS
  The coding sequence of HydI was amplified by PCR with the specific PCR primers from pQE/HydI, and then was sub-cloned into pcDNA3.1 plasmid as expression vector. The pcHyd1 plasmid was digested by restriction enzymes and amplified with the specific PCR primers to confirm cloning of this gene in pcDNA3 plasmid. In last step, the sub-cloned gene was expressed in mammalian cell line (NIH 3T3 cells).
  
  
  RESULTS
  The subunit 8-kDa antigen B (Hyd1) was successfully sub-cloned in pcDNA3.1 and Hyd1 protein was expressed in eukaryotic cell confirmed by SDS-PAGE and Western blot.
  
  
  CONCLUSIONS
  Recombinant plasmid of pcDNA3.1 was successfully constructed and express of recombinant Hyd1 protein was confirmed. That is promising step for forthcoming measures on providing vaccine against human and animal hydatidosis.
authors.affiliation: Dept. of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Iran.
authors.forename: Hakim
authors.initials: H
authors.lastname: Azizi
authors.affiliation: Cellular and Molecular Biology Research Centre, Shahid Beheshti University of Medical Sciences, Tehran, Iran ; Biotechnology Department, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors.forename: Bahram
authors.initials: B
authors.lastname: Kazemi
authors.affiliation: Cellular and Molecular Biology Research Centre, Shahid Beheshti University of Medical Sciences, Tehran, Iran ; Biotechnology Department, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors.forename: Mojgan
authors.initials: M
authors.lastname: Bandehpour
authors.affiliation: Dept. of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Iran ; Center for Research of Endemic Parasites of Iran (CREPI), Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Mehdi
authors.initials: M
authors.lastname: Mohebali
authors.affiliation: Skin and Leprosy Research Center, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Ali
authors.initials: A
authors.lastname: Khamesipour
authors.affiliation: Dept. of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Iran.
authors.forename: Mojgan
authors.initials: M
authors.lastname: Aryaeipour
authors.affiliation: Dept. of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Iran ; Center for Research of Endemic Parasites of Iran (CREPI), Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Mohammad Bagher
authors.initials: MB
authors.lastname: Rokni
keywords: Antigen; Echinococcus granulosus; Helminths; Hydatidosis