Abstract
A systematic comparison of the immunostimulatory capacity of TLR 2, 3, 4, 5, 7 and 9 agonists and an agonistic CD40-specific antibody was performed in a single long peptide vaccination model. All adjuvants activated DC in vitro but not all induced a strong functional T-cell response in vivo. Optimal clonal CD8(+) T-cell expansion depended on the capacity of agonists to mature pro-inflammatory DC and the duration of their in vivo stimulatory effect. Strong agonists promoted the induction of both antigen-specific IFNgamma-producing CD4(+) T-helper cells and high numbers of IFNgamma producing CD8(+) effector T-cells that killed target cells in vivo. Importantly, the capacity of an agonist to function as an adjuvant depended on the vaccine strategy used. Collectively, the multi-parameter system presented here can be used as a general road map to develop therapeutic vaccines.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Adjuvants, Immunologic / pharmacology
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Amino Acid Sequence
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Animals
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Antibodies / immunology
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Antibodies / pharmacology
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Antibody Specificity
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CD4-Positive T-Lymphocytes / immunology*
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CD40 Antigens / immunology
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CD8-Positive T-Lymphocytes / immunology*
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Cancer Vaccines / immunology*
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Cell Line, Tumor
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Dendritic Cells / immunology*
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Female
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Human papillomavirus 16 / immunology
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Lymphocyte Activation
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Mice
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Mice, Inbred C57BL
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Molecular Sequence Data
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Neoplasms, Experimental / immunology*
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Neoplasms, Experimental / therapy
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Oncogene Proteins, Viral / immunology
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Papillomavirus E7 Proteins
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Toll-Like Receptors / agonists*
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Toll-Like Receptors / immunology
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Vaccines, Subunit / immunology*
Substances
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Adjuvants, Immunologic
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Antibodies
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CD40 Antigens
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Cancer Vaccines
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Oncogene Proteins, Viral
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Papillomavirus E7 Proteins
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Toll-Like Receptors
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Vaccines, Subunit
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oncogene protein E7, Human papillomavirus type 16