Abstract
Dendritic cells phagocytose pathogens leading to maturation and cross-presentation on MHC class I. We found that the efficiency of cross-priming in mice after vaccination with biodegradable poly(d,l-lactide-co-glycolide) microspheres (MSs) was enhanced when ovalbumin was coencapsulated together with either a CpG oligonucleotide or polyI:C as compared to co-inoculation of ovalbumin-bearing MS with soluble or separately encapsulated adjuvants. A single immunization with MS containing coencaspsulated CpG and ovalbumin yielded 9% SIINFEKL/H-2Kb tetramer positive CTLs, production of IFN-γ, efficient cytolysis, and protection from vaccinia virus infection. Taken together, coencapsulation of adjuvant and antigen is an important paradigm for the generation of potent CTL responses.
Original language | English |
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Pages (from-to) | 1626-1637 |
Number of pages | 12 |
Journal | Vaccine |
Volume | 26 |
Issue number | 13 |
DOIs | |
State | Published - 20 Mar 2008 |
Keywords
- Biodegradable microspheres
- Cytotoxic T cells
- Viral infection