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Induction of immune responses in sheep by vaccination with liposome-entrapped DNA complexes encoding Toxoplasma gondii MIC3 gene
Abstract
Toxoplasma gondii is a parasite that has been extensively studied due to its medical and veterinary importance in terminating pregnancies. Consequently, a satisfactory vaccine is required to control itsadverse effects on pregnant animals. The microneme protein, MIC3, is a major adhesion protein that binds to the surface of host cells and parasites, and is therefore a potential vaccine against T. gondii.The viability of MIC3 as a vaccine is investigated in this study. Sheep were injected twice, intramuscularly, with plasmids containing DNA encoding for the mature form of MIC3 protein formulatedinto liposomes. Control sheep were injected with an empty vector or received no injections. The injection of sheep with DNA plasmids encoding for MIC3 elicited an immune response after the firstand second injections as indicated by antibody responses and the production of IFN-γ. The immune response, as measured by the IgG2 and IgG1 serum levels, was boosted after the injection of the MIC3 DNA vaccine together with high anti-MIC3 antibodies. The results demonstrate that the intramuscular injection of sheep with a plasmid containing DNA coding for MIC3 protein induces a significant and effective immune response against T. gondii.
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- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.2478/v10181-011-0107-7
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
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POLISH JOURNAL OF VETERINARY SCIENCES
no. 15,
pages 3 - 9,
ISSN: 1505-1773 - Language:
- English
- Publication year:
- 2012
- Bibliographic description:
- Hiszczyńska-Sawicka E., Li H., Boyu Xu J., Akhtar M., Holec-Gąsior L., Kur J., Bickerstaffe R., Stankiewicz M.: Induction of immune responses in sheep by vaccination with liposome-entrapped DNA complexes encoding Toxoplasma gondii MIC3 gene// POLISH JOURNAL OF VETERINARY SCIENCES. -Vol. 15, nr. iss. 1 (2012), s.3-9
- DOI:
- Digital Object Identifier (open in new tab) 10.2478/v10181-011-0107-7
- Verified by:
- Gdańsk University of Technology
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