@article{APS3636,
author = {Qing-tian Li and Yong-zhang Zhu and Jia-you Chu and Ke Dong and Ping He and Chun-yan Feng and Bao-yu Hu and Shu-min Zhang and Xiao-kui Guo},
title = {Granulocyte-macrophage colony-stimulating factor DNA prime-protein boost strategy to enhance efficacy of a recombinant pertussis DNA vaccine},
journal = {Acta Pharmacologica Sinica},
volume = {27},
number = {11},
year = {2016},
keywords = {},
abstract = {Aim: To investigate a new strategy to enhance the efficacy of a recombinant pertussis DNA vaccine. The strategy is co-injection with cytokine plasmids as prime, and boosted with purified homologous proteins.
Method: A recombinant pertussis DNA vaccine containing the pertussis toxin subunit 1 (PTS1), fragments of the filamentous hemagglutinin (FHA) gene and pertactin (PRN) gene encoding filamentous hemagglutinin and pertactin were constructed. Balb/c mice were immunized with several DNA vaccines and antigen-specific antibodies anti-PTS1, anti-PRN, anti-FHA, cytokines interleukin (IL)-10, IL-4, IFN-γ, TNF-α, and spleno-cyte-proliferation assay were used to describe immune responses.
Results: The recombinant DNA vaccine could elicit similar immune responses in mice as that of separate plasmids encoding the 3 fragments, respectively. Mice immunized with DNA and boosted with the corresponding protein elicited more antibodies than those that received DNA as boost. In particular, when the mice were co-immunized with murine granulocyte-macrophage colony-stimulating factor plasmids and boosted with proteins, all 4 cytokines and the 3 antigen-specific antibodies were significantly increased compared to the pVAX1 group. Anti-PTS1, anti-FHA, IL-4 and TNF-α elicited in the colony stimulating factor (CSF) prime-protein boost group showed significant increase compared to all the other groups.
Conclusion: This prime and boost strategy has proven to be very useful in improving the immunogenicity of DNA vaccines against pertussis.},
issn = {1745-7254}, url = {http://www.chinaphar.com/article/view/3636}
}