期刊
VACCINE
卷 26, 期 13, 页码 1626-1637出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.vaccine.2008.01.030
关键词
biodegradable microspheres; viral infection; cytotoxic T cells
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 polyl: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-2K(b) tetramer positive CTLs, production of IFN-gamma, 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. (C) 2008 Elsevier Ltd. All rights reserved.
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