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Published in: BMC Immunology 1/2012

Open Access 01-12-2012 | Research article

Adjuvant effect of docetaxel on the immune responses to influenza A H1N1 vaccine in mice

Authors: Jian Chen, Lin Yuan, Qing Fan, Fei Su, Yu Chen, Songhua Hu

Published in: BMC Immunology | Issue 1/2012

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Abstract

Background

Vaccination remains one of the most effective approaches to prevent the spread of infectious diseases. Immune responses to vaccination can be enhanced by inclusion of adjuvant in a vaccine. Paclitaxel extracted from the bark of the Pacific yew tree Taxus brevifola was previously demonstrated to have adjuvant property. Compared to paclitaxel, docetaxel is another member of taxane family, and is more soluble in water and easier to manipulate in medication. To investigate the adjuvant effect of this compound, we measured the immune responses induced by co-administration of a split inactivated influenza H1N1 vaccine antigen with docetaxel.

Results

When co-administered with docetaxel, lower dose antigen (equivalent to 10 ng HA) induced similar levels of IgG and IgG isotypes as well as HI titers to those induced by higher dose antigen (equivalent to 100 ng HA). Docetaxel promoted splenocyte responses to H1N1 antigen, ConA and LPS, mRNA expressions of cytokines (IFN-gamma, IL-12, IL-4 and IL-10) and T-bet/GATA-3 by splenocytes. The enhanced immunity was associated with up-expressed microRNAs (miR-155, miR-150 and miR-146a) in docetaxel-stimulated RAW264.7 cells. Docetaxel promoted similar IgE level to but alum promoted significantly higher IgE level than the control.

Conclusion

Docetaxel has adjuvant effect on the influenza H1N1 vaccine by up-regulation of Th1/Th2 immune responses. Considering its unique vaccine adjuvant property as well as the safe record as an anti-neoplastic agent clinically used in humans during a long period, docetaxel should be further studied for its use in influenza vaccine production.
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Metadata
Title
Adjuvant effect of docetaxel on the immune responses to influenza A H1N1 vaccine in mice
Authors
Jian Chen
Lin Yuan
Qing Fan
Fei Su
Yu Chen
Songhua Hu
Publication date
01-12-2012
Publisher
BioMed Central
Published in
BMC Immunology / Issue 1/2012
Electronic ISSN: 1471-2172
DOI
https://doi.org/10.1186/1471-2172-13-36

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