title: [Expression of HBV preS2/S gene in mammalian cells transferred with adenoviral vector].
abstract: OBJECTIVE
  To study HBV preS2/S gene expression effects in mammalian cells transferred with recombinant adenoviral vector.
  
  
  METHODS
  The replication-deficient recombinant adenoviral vector (Ad-HBs) carrying HBV preS2/S gene were constructed by homologous recombination in bacteria. The 293 cells, Vero cells, HepG2 cells and mesenchymal stem cells (MSCs) were infected with adenoviruses. The expressions of enhanced green fluorescent protein (EGFP) were observed with fluorescence microscope and the expressions of HBsAg were detected by RT-PCR and ELISA in vitro.
  
  
  RESULTS
  More than 90% of 293 cells, Vero cells, HepG2 cells or MSCs expressed EGFP after transfection at the MOI of 20 and the titers of HBsAg were more than 3.229 (A value) in culture supernatant.
  
  
  CONCLUSIONS
  The HBV preS2/S gene was not only expressed efficiently in immortalized cells, but also expressed efficiently in stem cells with the recombinant adenoviruses vector.
authors.affiliation: The Eighth Hospital of Guangzhou, Guangzhou 510060, China.
authors.forename: Chun-liang
authors.initials: CL
authors.lastname: Lei
authors.forename: Cheng-hui
authors.initials: CH
authors.lastname: Huang
authors.forename: Zhan
authors.initials: Z
authors.lastname: Yang
authors.forename: Xiao-ping
authors.initials: XP
authors.lastname: Tang
mesh_terms: D000256:Adenoviridae / Q000235:genetics*; D000818:Animals; D002460:Cell Line; D045744:Cell Line, Tumor; D002522:Chlorocebus aethiops; D004797:Enzyme-Linked Immunosorbent Assay; D015870:Gene Expression; D005822:Genetic Vectors / Q000235:genetics; D049452:Green Fluorescent Proteins / Q000235:genetics / Q000378:metabolism; D006514:Hepatitis B Surface Antigens / Q000235:genetics* / Q000378:metabolism; D006515:Hepatitis B virus / Q000235:genetics* / Q000276:immunology; D006801:Humans; D008856:Microscopy, Fluorescence; D020133:Reverse Transcriptase Polymerase Chain Reaction; D014162:Transfection; D014709:Vero Cells
chemical_list: D006514:Hepatitis B Surface Antigens; D049452:Green Fluorescent Proteins