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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2007-8-20
pubmed:abstractText
XAGE-1b belongs to cancer/testis (CT) antigens, and has been shown to be expressed frequently in lung cancers and to elicit an antibody response in patients with XAGE-1b-expressing tumors. In this study, we investigated an XAGE-1b peptide recognized by CD4 T cells. CD4 T cells were purified from PBMC of a healthy donor and stimulated with pooled 25-mer peptides overlapped with 15 amino acids spanning the entire XAGE-1b protein. The generation of XAGE-1b-specific CD4 T cells was shown by IFNgamma secretion assay. A CD4 T cell clone OHD1 was obtained by limiting dilution. OHD1 recognized two overlapping peptides, XAGE1-b(33-49) and XAGE-1b(37-52), by ELISPOT assay. A peptide XAGE-1b(38-46) which was included in both XAGE-1b(33-49) and XAGE-1b(37-52) was predicted to be a DRB1*0410-restricted 9-mer peptide by a computer-based program. We identified the 12-mer peptide XAGE-1b(37-48) as a new XAGE-1b epitope restricted to HLA-DRB1*0410.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0385-5600
pubmed:author
pubmed:issnType
Print
pubmed:volume
51
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
755-62
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
HLA-DRB1*0410-restricted recognition of XAGE-1b37-48 peptide by CD4 T cells.
pubmed:affiliation
Department of Immunology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama 700-8558, Japan. ymori@jichi.ac.jp
pubmed:publicationType
Journal Article