Analysis of memory T lymphocyte activity following stimulation with overlapping HLA-A*2402, A*0101 and Cw*0402 restricted CMV pp65 peptides
<p>Abstract</p> <p>The continuous efforts aimed at the identification of new immune epitopes across the MHC system has led to the discovery that more than one peptide may be restricted to the same HLA antigen and function as an immune determinant for that association. The aim of th...
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| Format: | Article |
| Language: | English |
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BMC
2005-05-01
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| Series: | Journal of Translational Medicine |
| Online Access: | http://www.translational-medicine.com/content/3/1/23 |
| _version_ | 1818934847441207296 |
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| author | Provenzano Maurizio Stroncek David F Ghei Monica |
| author_facet | Provenzano Maurizio Stroncek David F Ghei Monica |
| author_sort | Provenzano Maurizio |
| collection | DOAJ |
| description | <p>Abstract</p> <p>The continuous efforts aimed at the identification of new immune epitopes across the MHC system has led to the discovery that more than one peptide may be restricted to the same HLA antigen and function as an immune determinant for that association. The aim of this study was to compare the ability of two overlapping peptides, the nonamer (9-mer) cytomegalovirus (CMV) pp65<sub>341–349 </sub>(QYDPVAALF) and the decamer (10-mer) CMV pp65<sub>341–350 </sub>(QYDPVAALFF), and the esadecamer (16-mer) peptide containing both the 9-mer and 10-mer sequences, CMV pp65<sub>340–355 </sub>(RQYDPVAALFFFDIDL), to stimulate and maintain over time a T cell immune reactivation by HLA-A*2402, A*0101, and Cw*0402 cells from CMV-seropositive subjects. The 9-mer, 10-mer, and 16-mer peptides effectively stimulated CTLs from HLA-A*2402, HLA-A*0101, and HLA-Cw*0402 CMV seropositive donors. This data confirms that both the 9-mer and the 10-mer peptides are promiscuous and are not restricted to a single HLA antigen. CMV pp65<sub>341–349 </sub>and CMV pp65<sub>341–350 </sub>have the ability to produce CMV-specific CTLs in subjects with several different HLA types, presenting a practical advantage over other peptides that are restricted only to a single HLA antigen, and thus being optimal for CMV adoptive immune therapy. Moreover, since the 16-mer peptide encompasses both the 9-mer and 10-mer peptides, it may be better than either of these peptides for CMV adoptive immune therapy.</p> |
| first_indexed | 2024-12-20T05:10:47Z |
| format | Article |
| id | doaj.art-6a623588e8b94a2dab7155d17803c937 |
| institution | Directory Open Access Journal |
| issn | 1479-5876 |
| language | English |
| last_indexed | 2024-12-20T05:10:47Z |
| publishDate | 2005-05-01 |
| publisher | BMC |
| record_format | Article |
| series | Journal of Translational Medicine |
| spelling | doaj.art-6a623588e8b94a2dab7155d17803c9372022-12-21T19:52:16ZengBMCJournal of Translational Medicine1479-58762005-05-01312310.1186/1479-5876-3-23Analysis of memory T lymphocyte activity following stimulation with overlapping HLA-A*2402, A*0101 and Cw*0402 restricted CMV pp65 peptidesProvenzano MaurizioStroncek David FGhei Monica<p>Abstract</p> <p>The continuous efforts aimed at the identification of new immune epitopes across the MHC system has led to the discovery that more than one peptide may be restricted to the same HLA antigen and function as an immune determinant for that association. The aim of this study was to compare the ability of two overlapping peptides, the nonamer (9-mer) cytomegalovirus (CMV) pp65<sub>341–349 </sub>(QYDPVAALF) and the decamer (10-mer) CMV pp65<sub>341–350 </sub>(QYDPVAALFF), and the esadecamer (16-mer) peptide containing both the 9-mer and 10-mer sequences, CMV pp65<sub>340–355 </sub>(RQYDPVAALFFFDIDL), to stimulate and maintain over time a T cell immune reactivation by HLA-A*2402, A*0101, and Cw*0402 cells from CMV-seropositive subjects. The 9-mer, 10-mer, and 16-mer peptides effectively stimulated CTLs from HLA-A*2402, HLA-A*0101, and HLA-Cw*0402 CMV seropositive donors. This data confirms that both the 9-mer and the 10-mer peptides are promiscuous and are not restricted to a single HLA antigen. CMV pp65<sub>341–349 </sub>and CMV pp65<sub>341–350 </sub>have the ability to produce CMV-specific CTLs in subjects with several different HLA types, presenting a practical advantage over other peptides that are restricted only to a single HLA antigen, and thus being optimal for CMV adoptive immune therapy. Moreover, since the 16-mer peptide encompasses both the 9-mer and 10-mer peptides, it may be better than either of these peptides for CMV adoptive immune therapy.</p>http://www.translational-medicine.com/content/3/1/23 |
| spellingShingle | Provenzano Maurizio Stroncek David F Ghei Monica Analysis of memory T lymphocyte activity following stimulation with overlapping HLA-A*2402, A*0101 and Cw*0402 restricted CMV pp65 peptides Journal of Translational Medicine |
| title | Analysis of memory T lymphocyte activity following stimulation with overlapping HLA-A*2402, A*0101 and Cw*0402 restricted CMV pp65 peptides |
| title_full | Analysis of memory T lymphocyte activity following stimulation with overlapping HLA-A*2402, A*0101 and Cw*0402 restricted CMV pp65 peptides |
| title_fullStr | Analysis of memory T lymphocyte activity following stimulation with overlapping HLA-A*2402, A*0101 and Cw*0402 restricted CMV pp65 peptides |
| title_full_unstemmed | Analysis of memory T lymphocyte activity following stimulation with overlapping HLA-A*2402, A*0101 and Cw*0402 restricted CMV pp65 peptides |
| title_short | Analysis of memory T lymphocyte activity following stimulation with overlapping HLA-A*2402, A*0101 and Cw*0402 restricted CMV pp65 peptides |
| title_sort | analysis of memory t lymphocyte activity following stimulation with overlapping hla a 2402 a 0101 and cw 0402 restricted cmv pp65 peptides |
| url | http://www.translational-medicine.com/content/3/1/23 |
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