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Efficacy of recombinant herpes simplex virus 1 glycoprotein D candidate vaccines in mice.
- Source :
-
Acta microbiologica et immunologica Hungarica [Acta Microbiol Immunol Hung] 2006 Dec; Vol. 53 (4), pp. 459-77. - Publication Year :
- 2006
-
Abstract
- To compare the immunogenity of the herpes simplex virus 1 (HSV-1/HHV-1) recombinant glycoprotein D (gD1), as a potential protective vaccine, Balb/c mice were immunized with either gD1/313 (the ectodomain of the gD1 fusion protein consisting of 313 amino acid residues), or the plasmid pcDNA3.1-gD (coding for a full length gD1 protein, FLgD1). A live attenuated HSV-1 (deleted in the gE gene), and a HSV-1 (strain HSZP)-infected cell extract served as positive controls, and three non-structural recombinant HSV-1 fusion proteins (ICP27, UL9/OBP and thymidine kinase--TK) were used as presumed non-protective (negative) controls. Protection tests showed that the LD50 value of the challenging infectious virus increased 90-fold in mice immunized with ICP27, but remained unchanged in other control mice immunized with TK and OBP polypeptides. A significant protection (the LD50 value of challenging virus increased 800-fold) was noted following immunization with gD1/313, while immunization with the gE-del virus and/or the gD1 DNA vaccine resulted in a more than 4,000-fold increase of the challenging virus dose killing 50% of the animals. Using ELISA, elevated antibody titers were detected following immunizations with gD1/313, gE-del virus, and/or HSV-1-infected-cell extract. In addition, all of the three non-structural proteins elicited a good humoral response (with titres ranging from 1:16,000 to 1:128,000). The lowest IgG response (1:8,000) was noted after immunization with the gD1 DNA vaccine. Peripheral blood leukocytes (PBLs) as well as splenocytes from mice immunized with gD1/313, gE-del virus, and gD1-plasmid responded in lymphocyte transformation test (LTT) to the presence of purified gD1/313 antigen. For PBLs, the most significant stimulation of thymidine incorporation was registered at a gD1/313 concentration of 5 microg/100 microl, while the splenocytes from DNA vaccine-immunized mice responded already at a concentration of 1 microg/100 microl.
- Subjects :
- Animals
Antigens, Viral administration & dosage
Antigens, Viral genetics
Cell Line
Disease Models, Animal
Genetic Vectors
Herpesvirus 1, Human genetics
Herpesvirus 1, Human immunology
Mice
Recombinant Fusion Proteins administration & dosage
Recombinant Fusion Proteins genetics
Recombinant Fusion Proteins immunology
Vaccines, DNA administration & dosage
Vaccines, DNA genetics
Vaccines, DNA immunology
Viral Envelope Proteins immunology
Antibodies, Viral biosynthesis
Herpes Simplex prevention & control
Herpesvirus 1, Human chemistry
Viral Envelope Proteins administration & dosage
Subjects
Details
- Language :
- English
- ISSN :
- 1217-8950
- Volume :
- 53
- Issue :
- 4
- Database :
- MEDLINE
- Journal :
- Acta microbiologica et immunologica Hungarica
- Publication Type :
- Academic Journal
- Accession number :
- 17278713
- Full Text :
- https://doi.org/10.1556/AMicr.53.2006.4.4