Modification of MHC anchor residues generates heteroclitic peptides that alter TCR binding and T cell recognition.
Modification of MHC anchor residues generates heteroclitic peptides that alter TCR binding and T cell recognition.
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DOI:
10.4049/jimmunol.1000629
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发表时间:
2010-08-15
期刊:
影响因子:
--
通讯作者:
Sewell AK
中科院分区:
文献类型:
--
作者:
Cole DK;Edwards ES;Wynn KK;Clement M;Miles JJ;Ladell K;Ekeruche J;Gostick E;Adams KJ;Skowera A;Peakman M;Wooldridge L;Price DA;Sewell AK
Improving T-cell antigens by altering MHC anchor residues is a common strategy used to enhance peptide vaccines but there has been little assessment of how such modifications affect TCR binding and T-cell recognition. Here, we use surface plasmon resonance and peptide-MHC tetramer binding at the cell surface to demonstrate that changes in primary peptide anchor residues can substantially and unpredictably alter TCR binding. We also demonstrate that the ability of TCRs to differentiate between natural and anchor-modified heteroclitic peptides distinguishes T-cells that exhibit a strong preference for either type of antigen. Furthermore, we show that anchor-modified heteroclitic peptides prime T-cells with different TCRs compared to those primed with natural antigen. Thus, vaccination with heteroclitic peptides may elicit T-cells that exhibit suboptimal recognition of the intended natural antigen and, consequently, impaired functional attributes in vivo. Heteroclitic peptide-based immune interventions therefore require careful evaluation to ensure efficacy in the clinic.
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影响因子:
56.9
作者:
Morgan, Richard A.;Dudley, Mark E.;Rosenberg, Steven A.
通讯作者:
Rosenberg, Steven A.
DOI:
10.1073/pnas.90.17.8053
发表时间:
1993-09-01
影响因子:
11.1
作者:
GUO, HC;MADDEN, DR;WILEY, DC
通讯作者:
WILEY, DC
影响因子:
17.3
作者:
Jones, VE;Mitchell, MS
通讯作者:
Mitchell, MS
DOI:
10.1093/protein/gzg087
发表时间:
2003-09-01
期刊:
PROTEIN ENGINEERING
影响因子:
--
作者:
Boulter, JM;Glick, M;Jakobsen, BK
通讯作者:
Jakobsen, BK
影响因子:
4.4
作者:
Meidenbauer, N;Marienhagen, J;Mackensen, A
通讯作者:
Mackensen, A