Abstract
Cytolytic T-cell vaccination with immunodominant MHC class I-restricted peptides contained within Quil A liposomes has been previously demonstrated. In recent years, Quil A has been under consideration for use as an adjuvant in humans. We assessed the possible use of peptide inoculation in the context of Quil A liposomes to be protective in a mouse model. Listeria monocytogenes was used as the challenge pathogen and the previously identified listeriolysin 91-99 peptide as the immunogen. The listeriolysin 91-99 Quil A liposome inoculum showed significant enhancement of survival after challenge with up to 10 times the L. monocytogenes LD50.
MeSH terms
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Adjuvants, Immunologic
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Animals
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Bacterial Toxins*
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Bacterial Vaccines / administration & dosage
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Bacterial Vaccines / immunology*
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CD8 Antigens
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Cytotoxicity, Immunologic
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Female
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Heat-Shock Proteins / immunology*
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Hemolysin Proteins / immunology*
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Immunodominant Epitopes / immunology*
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Liposomes
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Listeriosis / immunology
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Listeriosis / prevention & control*
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Mice
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Mice, Inbred BALB C
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Oligopeptides / immunology
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Quillaja Saponins
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Saponins
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T-Lymphocytes, Cytotoxic / immunology*
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T-Lymphocytes, Regulatory / immunology
Substances
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Adjuvants, Immunologic
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Bacterial Toxins
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Bacterial Vaccines
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CD8 Antigens
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Heat-Shock Proteins
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Hemolysin Proteins
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Immunodominant Epitopes
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Liposomes
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Oligopeptides
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Quillaja Saponins
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Saponins
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Quil A
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hlyA protein, Listeria monocytogenes