Abstract
The merozoite surface protein-1 (MSP-1) from Plasmodium vivax was evaluated as an oral vaccine candidate by cloning and expressing the interspecies conserved block 10 (ICB10) of the MSP-1 from a Korean isolate in Escherichia coli. The expressed fusion protein contained ICB10 and a maltose-binding protein (MBP), rPv54, has a molecular weight of approximately 54 kDa as determined by SDS-PAGE analysis. IgG against rPv54 was successfully produced in BALB/c mice by oral immunization and sustained for more than 4 months. IgG2b was dominantly produced in both oral and parenteral immunizations. The rPv54 increased the frequency of NK, NKT, CD4+ T, CD8+ T, and B cells in both immunizations. IL-5 and TNF-alpha were increased in both significantly. In conclusion, rPv54 might be a valuable potential vaccine candidate for the oral and parenteral immunization against vivax malaria.
Copyright 2010 Elsevier Inc. All rights reserved.
Publication types
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Comparative Study
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Research Support, Non-U.S. Gov't
MeSH terms
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Administration, Oral
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Animals
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Antibodies, Protozoan / biosynthesis
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Female
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Humans
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Immunoglobulin G / biosynthesis
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Infusions, Parenteral
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Interleukin-5 / metabolism
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Malaria, Vivax / prevention & control
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Maltose-Binding Proteins
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Merozoite Surface Protein 1 / chemistry
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Merozoite Surface Protein 1 / genetics
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Merozoite Surface Protein 1 / immunology*
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Mice
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Mice, Inbred BALB C
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Periplasmic Binding Proteins / chemistry
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Periplasmic Binding Proteins / genetics
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Periplasmic Binding Proteins / immunology*
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Plasmodium vivax / immunology*
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Protozoan Vaccines / administration & dosage*
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Protozoan Vaccines / immunology
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Recombinant Fusion Proteins / chemistry
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Recombinant Fusion Proteins / genetics
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Recombinant Fusion Proteins / immunology*
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Spleen / cytology
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Spleen / immunology
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Tumor Necrosis Factor-alpha / metabolism
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Vaccines, Synthetic / administration & dosage
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Vaccines, Synthetic / immunology
Substances
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Antibodies, Protozoan
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Immunoglobulin G
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Interleukin-5
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Maltose-Binding Proteins
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Merozoite Surface Protein 1
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Periplasmic Binding Proteins
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Protozoan Vaccines
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Recombinant Fusion Proteins
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Tumor Necrosis Factor-alpha
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Vaccines, Synthetic