Intercellular trafficking of the major tegument protein VP22 of bovine herpesvirus-1 and its application to improve a DNA vaccine.
Intercellular spread of bovine herpesvirus-1 (BHV-1) VP22 was demonstrated in living COS-7 cells transfected with a plasmid expressing VP22-YFP (yellow fluorescence protein) and CFP (cyan fluorescence protein) bicistronically. The intercellular trafficking property of VP22 was localized to the C-terminal portion of the molecule (amino acids 121-258; VP22-C). Plasmids encoding a truncated form of BHV-1 glycoprotein D (tgD) fused to VP22, VP22-C, or the N-terminal portion of VP22 (amino acids 1-120; VP22-N) were constructed. Mice immunized with plasmid encoding tgD-VP22 or tgD-VP22-C developed stronger immune responses when compared to animals immunized with plasmid encoding tgD or tgD fused to tgD-VP22-N.
Zheng
C F
CF
Vaccine and Infectious Disease Organization, University of Saskatchewan, Saskatoon, Canada.
Brownlie
R
R
Huang
D Y
DY
Babiuk
L A
LA
van Drunen Littel-van den Hurk
S
S
D000818:Animals; D000914:Antibodies, Viral / Q000097:blood; D017930:Genes, Reporter; D049452:Green Fluorescent Proteins / Q000032:analysis / Q000235:genetics; D007242:Herpesvirus 1, Bovine / Q000276:immunology*; D007074:Immunoglobulin G / Q000097:blood; D007371:Interferon-gamma / Q000096:biosynthesis; D015847:Interleukin-4 / Q000096:biosynthesis; D051379:Mice; D010957:Plasmids / Q000235:genetics; D011993:Recombinant Fusion Proteins / Q000235:genetics / Q000276:immunology / Q000378:metabolism; D013601:T-Lymphocytes / Q000276:immunology; D019444:Vaccines, DNA / Q000008:administration & dosage / Q000235:genetics / Q000276:immunology*; D014764:Viral Proteins / Q000235:genetics / Q000276:immunology; D015678:Viral Structural Proteins / Q000276:immunology* / Q000378:metabolism*; D014765:Viral Vaccines / Q000008:administration & dosage / Q000235:genetics / Q000276:immunology*
D000914:Antibodies, Viral; C485182:Cyan Fluorescent Protein; D007074:Immunoglobulin G; D011993:Recombinant Fusion Proteins; D019444:Vaccines, DNA; D014764:Viral Proteins; D015678:Viral Structural Proteins; D014765:Viral Vaccines; C046998:bovine herpesvirus type-1 glycoproteins; C434023:tegument protein VP22, bovine herpesvirus 1; D049452:Green Fluorescent Proteins; D015847:Interleukin-4; D007371:Interferon-gamma