Abstract
We investigated the contribution of lipopolysaccharide (LPS) to adjuvant properties of native outer membrane vesicles (NOMV), a vaccine candidate for meningococcal B disease. NOMV induce the maturation of and cytokine production by murine bone marrow-derived dendritic cells through both toll-like receptors (TLR) 2 and 4 which are mostly dependent on the signalling adaptor MyD88. NOMV are also able to induce B cell proliferation in splenocytes from LPS-hyporesponsive mice. However, induction of IL-10 and type I interferon-dependent, antigen-specific and IFN¿-secreting CD8+ cytotoxic T lymphocyte responses in vivo by NOMV requires LPS. The importance of LPS in the induction of IL-10 and functional cross-priming has implications for NOMV-based vaccine and adjuvant development.
Original language | English |
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Pages (from-to) | 1912-1922 |
Number of pages | 11 |
Journal | Vaccine |
Volume | 27 |
Issue number | 13 |
Early online date | 31 Jan 2009 |
DOIs | |
Publication status | Published - 18 Mar 2009 |
Keywords
- lipopolysaccharide
- meningococcal disease
- cross-priming