Abstract |
Vesicular stomatitis virus (VSV) has proven to be an effective vaccine vector for immunization against viral infection, but its potential to induce an immune response to a self- tumor antigen has not been investigated. We constructed a recombinant VSV expressing human dopachrome tautomerase (hDCT) and evaluated its immunogenicity in a murine melanoma model. Intranasal delivery of VSV-hDCT activated both CD4(+) and CD8(+) DCT-specific T-cell responses. The magnitude of these responses could be significantly increased by booster immunization with recombinant adenovirus (Ad)-hDCT, which led to enhanced efficacy against B16-F10 melanoma in both prophylactic and therapeutic settings. Notably, the interval of VSV/Ad heterologous vaccination could be shortened to as few as 4 days, making it a potential regimen to rapidly expand antigen-specific effector cells. Furthermore, VSV-hDCT could increase DCT-specific T-cell responses primed by Ad-hDCT, suggesting VSV is efficient for both priming and boosting of the immune response against a self- tumor antigen.
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Authors | Byram W Bridle, Jeanette E Boudreau, Brian D Lichty, Jérôme Brunellière, Kyle Stephenson, Sandeep Koshy, Jonathan L Bramson, Yonghong Wan |
Journal | Molecular therapy : the journal of the American Society of Gene Therapy
(Mol Ther)
Vol. 17
Issue 10
Pg. 1814-21
(Oct 2009)
ISSN: 1525-0024 [Electronic] United States |
PMID | 19603003
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Cancer Vaccines
- Intramolecular Oxidoreductases
- dopachrome isomerase
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Topics |
- Adenoviridae
(genetics)
- Animals
- CD8-Positive T-Lymphocytes
(immunology)
- Cancer Vaccines
(genetics, immunology, therapeutic use)
- Cell Line, Tumor
- Female
- Genetic Vectors
(genetics)
- Humans
- Immunization, Secondary
- Intramolecular Oxidoreductases
(genetics, immunology)
- Lung Neoplasms
(complications, immunology, therapy)
- Melanoma
(immunology, therapy)
- Mice
- Mice, Inbred C57BL
- T-Lymphocytes
(immunology)
- Vesiculovirus
(genetics)
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