title: [Construction of the recombinant adenovirus expressing the CVB3 sVP1-C3d3 protein and study on its immunological effects in mice].
abstract: OBJECTIVE
  To construct recombinant adenovirus Ad/C3d3-sVP1 and investigate the immune effects against coxsackievirus infection in mouse.
  
  
  METHODS
  The recombinant adenovirus Ad/sVP1-C3d3 was constructed and packaged. BALB/c mouse were divided into four groups: Ad/sVP1-C3d3 group, Ad/VP1 group, Ad group and PBS group. The mice in each group were immunized by intramuscular injection. The titers of sera IgG and neutralizing antibody were detected by ELISA method and trace neutralization assay, respectively.The specific CTL cytotoxic activity was detected by CCK-8 assay. The mice in each group were challenged with lethal dose of coxsackievirus, the titers of the sera virus were titrated.
  
  
  RESULTS
  The recombinant adenovirus Ad/sVP1-C3d3 was successfully constructed. It's observed that the titers of CVB3 VP1 specific antibody and neutralizing antibody were much higher than those of the other three groups(P<0.01). CTL cytotoxicity activities was much higher than PBS and Ad group(P<0.01), but little higher than Ad/VP1 group(P<0.05).The titer of sera virus was lower than Ad and PBS groups after CVB3 challenged(P<0.05).
  
  
  CONCLUSIONS
  Both the celluar and humoral immune responses in mice could been significantly enhanced by Ad/sVP1-C3d3.
authors.affiliation: Department of Pathogenic Biology, Hebei Medical University, Shijiazhuang 050017, China.
authors.forename: Jia
authors.initials: J
authors.lastname: Li
authors.forename: Jian
authors.initials: J
authors.lastname: Li
authors.forename: Xian
authors.initials: X
authors.lastname: Xian
authors.forename: Gui-xia
authors.initials: GX
authors.lastname: Liu
authors.forename: Jia-ming
authors.initials: JM
authors.lastname: Lan
authors.forename: Yu-huai
authors.initials: YH
authors.lastname: Jin
authors.forename: Li-xin
authors.initials: LX
authors.lastname: Xie
authors.forename: Huan
authors.initials: H
authors.lastname: Zhang
authors.forename: Yong-xiang
authors.initials: YX
authors.lastname: Wang
mesh_terms: D000256:Adenoviridae / Q000737:chemistry* / Q000235:genetics / Q000276:immunology*; D000818:Animals; D015933:Complement C3d / Q000235:genetics / Q000276:immunology*; D003384:Coxsackievirus Infections / Q000276:immunology*; D004274:DNA, Recombinant / Q000737:chemistry / Q000235:genetics / Q000276:immunology; D029822:Enterovirus B, Human / Q000235:genetics / Q000276:immunology*; D057809:HEK293 Cells; D006367:HeLa Cells; D006801:Humans; D007114:Immunization / Q000379:methods; D007074:Immunoglobulin G / Q000276:immunology; D008297:Male; D051379:Mice; D008807:Mice, Inbred BALB C; D011993:Recombinant Fusion Proteins / Q000737:chemistry* / Q000235:genetics / Q000276:immunology*; D014764:Viral Proteins / Q000737:chemistry / Q000235:genetics / Q000276:immunology; D014765:Viral Vaccines / Q000737:chemistry / Q000235:genetics / Q000276:immunology
chemical_list: D004274:DNA, Recombinant; D007074:Immunoglobulin G; D011993:Recombinant Fusion Proteins; D014764:Viral Proteins; D014765:Viral Vaccines; D015933:Complement C3d