Abstract:
:We have previously reported that 90K/Mac-2 binding protein (M2BP) was highly expressed in lung cancer and that M2BP-specific immunity was observed in many of cancer patients. In this study, we analyzed the ability of 11 M2BP-derived oligopeptides with an HLA-A*0201-binding motif to induce M2BP-specific cytotoxic T lymphocytes (CTL) from peripheral blood lymphocytes of normal donors by in vitro stimulation. One of the CTLs that were induced using M2BP216-224 (RIDITLSSV) produced interferon-gamma in response to HLA-A2-positive T2 cells pulsed with the same peptide and lysed MDA-MB-231 cells expressing both M2BP and HLA-A2. The cytolytic activities were blocked by antibodies against HLA class I or CD8. These findings suggest that M2BP216-224 is naturally processed from the native M2BP in cancer cells and recognized by M2BP-specific CTLs in an HLA-A2 restriction. We first identified M2BP-derived CTL epitopes that may be useful as a target antigenic epitope in clinical immunotherapy of cancer.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Ozaki Y,Kontani K,Teramoto K,Fujita T,Tezuka N,Sawai S,Watanabe H,Fujino S,Asai T,Ohkubo Idoi
10.1016/j.bbrc.2004.03.155subject
Has Abstractpub_date
2004-05-14 00:00:00pages
1089-95issue
4eissn
0006-291Xissn
1090-2104pii
S0006291X0400659Xjournal_volume
317pub_type
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
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journal_title:Biochemical and biophysical research communications
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pub_type: 杂志文章
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journal_title:Biochemical and biophysical research communications
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