rdf:type |
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lifeskim:mentions |
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pubmed:issue |
6
|
pubmed:dateCreated |
2007-3-29
|
pubmed:abstractText |
Because of the high frequency of HLA-DP4 in the Caucasian population, we have selectively delineated HLA-DP4 restricted T cell epitopes in the MAGE-A tumor antigens. We identified 12 good binders to HLA-DP4 and investigated the capacity of the seven best binders to induce in vitro specific CD4+ T cell lines from HLA-DP4 healthy donors. We found that the MAGE-A1 90-104 peptide exhibited a high and constant frequency of CD4+ T cell precursors in all the six tested donors. The MAGE-A1 268-282 peptide was found immunogenic in only two donors but with a high precursor frequency. The MAGE-A12 127-141 peptide was T cell stimulating in six different donors and induced fewer T cell lines. The peptide-specific T cell lines were stimulated by DC loaded with the lysates of cells transfected with MAGE-A1 or MAGE-A12, or loaded with the recombinant protein. We also show that the immunoreactivity of CD4+ T cell epitopes restricted to the same HLA II molecule may vary from one individual to another, as a result of inter-individual variations in the CD4+ T cell repertoire.
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pubmed:grant |
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Jun
|
pubmed:issn |
0340-7004
|
pubmed:author |
pubmed-author:AlmuniaChristineC,
pubmed-author:BussonMarcM,
pubmed-author:CastelliFlorence AFA,
pubmed-author:CharronDominiqueD,
pubmed-author:CohenWilliam MWM,
pubmed-author:LethéBernardB,
pubmed-author:MénezAndréA,
pubmed-author:MaillèreBernardB,
pubmed-author:MunierGaetanG,
pubmed-author:Pouvelle-MoratilleSandraS,
pubmed-author:WangXiao-FeiXF,
pubmed-author:ZarourHassan MHM,
pubmed-author:van der BruggenPierreP
|
pubmed:issnType |
Print
|
pubmed:volume |
56
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
807-18
|
pubmed:dateRevised |
2011-11-17
|
pubmed:meshHeading |
pubmed-meshheading:16988823-Animals,
pubmed-meshheading:16988823-Antigens, Neoplasm,
pubmed-meshheading:16988823-CD4-Positive T-Lymphocytes,
pubmed-meshheading:16988823-COS Cells,
pubmed-meshheading:16988823-Cercopithecus aethiops,
pubmed-meshheading:16988823-Epitopes, T-Lymphocyte,
pubmed-meshheading:16988823-HLA-DP Antigens,
pubmed-meshheading:16988823-HLA-DP beta-Chains,
pubmed-meshheading:16988823-Humans,
pubmed-meshheading:16988823-Lymphocyte Activation,
pubmed-meshheading:16988823-Melanoma-Specific Antigens,
pubmed-meshheading:16988823-Neoplasm Proteins
|
pubmed:year |
2007
|
pubmed:articleTitle |
Selective identification of HLA-DP4 binding T cell epitopes encoded by the MAGE-A gene family.
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pubmed:affiliation |
Protein Engineering and Research Department, CEA-Saclay, 91191 Gif sur Yvette, France.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't,
Research Support, N.I.H., Extramural
|