Source:http://linkedlifedata.com/resource/pubmed/id/20838432
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
9
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pubmed:dateCreated |
2010-9-14
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pubmed:abstractText |
Malaria remains one of the world's greatest killers and a vaccine is urgently required. There are no established correlates of protection against malaria either for natural immunity to the disease or for immunity conferred by candidate malaria vaccines. The RTS,S/AS02A vaccine offers significant partial efficacy against malaria.mRNA expression of five key cytokines interferon-gamma (IFN-?), monokine induced by gamma (MIG), interleukin-10 (IL-10), transforming growth factor-? (TGF-?) and forkhead box P3 (FoxP3) in peripheral blood mononuclear cells were measured by real-time RT-PCR before and after vaccination with RTS,S/AS02A and Modified Vaccinia virus Ankara encoding the circumsporozoite protein (MVA-CS) in healthy malaria-naïve adult volunteers. The only significant change was in IFN-? mRNA expression, which was increased seven days after vaccination (P ?=? 0.04). Expression of MIG mRNA seven days after vaccination correlated inversely with time to detection of parasites by blood film in an experimental sporozoite challenge (r = 0.94 P ?=? 0.005). An inverse relationship was seen between both TGF-?1 and IL-10 mRNA at baseline and the anti-circumsporozoite IgG antibody response (r ?=? -0.644 P ?=? 0.022 and r =? -0.554 P = 0.031 respectively). This study demonstrates the potential for MIG expression as a correlate of protection against malaria. Baseline levels of the regulatory cytokines TGF-? and IL-10 inversely correlated with antibody levels post vaccination and warrant further studies to improve understanding of individual differences in response to vaccination.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Antibodies, Protozoan,
http://linkedlifedata.com/resource/pubmed/chemical/Chemokine CXCL9,
http://linkedlifedata.com/resource/pubmed/chemical/Interferon-gamma,
http://linkedlifedata.com/resource/pubmed/chemical/Interleukin-10,
http://linkedlifedata.com/resource/pubmed/chemical/Malaria Vaccines,
http://linkedlifedata.com/resource/pubmed/chemical/Protozoan Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Transforming Growth Factor beta1
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pubmed:status |
MEDLINE
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pubmed:issn |
1932-6203
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:volume |
5
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
e12557
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pubmed:meshHeading |
pubmed-meshheading:20838432-Antibodies, Protozoan,
pubmed-meshheading:20838432-Chemokine CXCL9,
pubmed-meshheading:20838432-Gene Expression Regulation,
pubmed-meshheading:20838432-Humans,
pubmed-meshheading:20838432-Interferon-gamma,
pubmed-meshheading:20838432-Interleukin-10,
pubmed-meshheading:20838432-Malaria, Falciparum,
pubmed-meshheading:20838432-Malaria Vaccines,
pubmed-meshheading:20838432-Plasmodium falciparum,
pubmed-meshheading:20838432-Protozoan Proteins,
pubmed-meshheading:20838432-Transforming Growth Factor beta1
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pubmed:year |
2010
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pubmed:articleTitle |
MIG and the regulatory cytokines IL-10 and TGF-?1 correlate with malaria vaccine immunogenicity and efficacy.
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pubmed:affiliation |
Centre for Clinical Vaccinology and Tropical Medicine, The Jenner Institute, University of Oxford, Oxford, United Kingdom. susie.dunachie@ndm.ox.ac.uk
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pubmed:publicationType |
Journal Article,
Clinical Trial,
Research Support, Non-U.S. Gov't
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