Journal
VACCINE
Volume 25, Issue 47, Pages 7984-7993Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.vaccine.2007.09.030
Keywords
Adjuvants; Vaccines; Plague; Y pestis F1-V
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Funding
- NIAID NIH HHS [U01 AI056452, U01 AI056452-03, U01 AI056452-01, U01 AI056452-02, AI056452, U01 AI056452-04] Funding Source: Medline
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In this study, we compare four different adjuvants, LT(R I 92G), CpG ODN, (MPLTDM)-T-(R), and alum, for their ability to affect the magnitude, distribution, and duration of antibody responses against FI-V, the lead-candidate antigen for the next generation vaccine against plague, in a murine model. In addition, three different routes of immunization-intranasal (IN), transcutaneous (TC), and subcutaneous (SC) were compared with each adjuvant. Since aerosol exposure to biological warfare agents is of primary concern, both serum and bronchioalveolar lavage (BAL) were analyzed for antigen-specific antibody responses. The most significant findings of the study reported here are that (1) the adjuvant influences the Type I/Type 2 balance of the antibody response in both the serum and BAL, (2) mucosal immunization is not necessary to obtain FI-V-specific BAL responses, (3) non-traditional adjuvants such as LT(R192G) work when delivered subcutaneously, (4) the route of immunization affects the magnitude of the immune response, and (5) FI-V is highly immunogenic by some routes even in the absence of an exouenously applied adjuvant. These studies provide important insights into the influence of different classes of adjuvants on the immune outcome in biodefense vaccines and for development of new-generation vaccines against other pathogens as well. (c) 2007 Elsevier Ltd. All rights reserved.
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