Prothymosin alpha enhances protective immune responses induced by oral DNA vaccination against pseudorabies delivered by Salmonella choleraesuis.
Previously, we showed that vaccination with the glycoprotein D (gD) gene of pseudorabies virus (PrV) delivered by Escherichia coli induced protective immune responses. In this study, we report that oral DNA vaccination with attenuated Salmonella choleraesuis carrying the PrV gD gene conferred protective immunity in mice against PrV. Moreover, co-delivery of the prothymosin alpha gene carried by S. choleraesuis enhanced the vaccine efficacy. Our results thus demonstrate for the first time, to our knowledge, the effectiveness of oral DNA vaccination using S. choleraesuis as a delivery vehicle and the potential usefulness of prothymosin alpha as a DNA vaccine adjuvant.
Shiau
A L
AL
Department of Microbiology, National Cheng Kung University Medical College, Tainan 701, Taiwan. wumolbiol@mail.ncku.edu.tw
Chen
Y L
YL
Liao
C Y
CY
Huang
Y S
YS
Wu
C L
CL
D000276:Adjuvants, Immunologic / Q000008:administration & dosage* / Q000235:genetics; D000284:Administration, Oral; D000818:Animals; D000907:Antibodies, Bacterial / Q000096:biosynthesis; D000914:Antibodies, Viral / Q000096:biosynthesis; D005260:Female; D005822:Genetic Vectors; D011558:Herpesvirus 1, Suid / Q000235:genetics / Q000276:immunology; D066298:In Vitro Techniques; D007763:Lac Operon; D008213:Lymphocyte Activation; D051379:Mice; D008807:Mice, Inbred BALB C; D010957:Plasmids / Q000235:genetics; D011401:Promoter Regions, Genetic; D011498:Protein Precursors / Q000008:administration & dosage* / Q000235:genetics; D011557:Pseudorabies / Q000276:immunology / Q000517:prevention & control; D022421:Pseudorabies Vaccines / Q000008:administration & dosage* / Q000235:genetics; D012475:Salmonella / Q000235:genetics* / Q000276:immunology; D013602:T-Lymphocytes, Cytotoxic / Q000276:immunology; D013947:Thymosin / Q000008:administration & dosage* / Q000031:analogs & derivatives / Q000235:genetics; D019444:Vaccines, DNA / Q000008:administration & dosage* / Q000235:genetics; D014759:Viral Envelope Proteins / Q000235:genetics / Q000276:immunology
D000276:Adjuvants, Immunologic; D000907:Antibodies, Bacterial; D000914:Antibodies, Viral; D011498:Protein Precursors; D022421:Pseudorabies Vaccines; D019444:Vaccines, DNA; D014759:Viral Envelope Proteins; C107752:glycoprotein D, pseudorabies virus; C040782:prothymosin alpha; D013947:Thymosin