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.
复制标题

DOI:
10.4049/jimmunol.1000629
复制
发表时间:
2010-08-15
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
通讯作者:
Sewell AK
Sewell AK
中科院分区:
其他
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

文献摘要

参考文献

被引文献

相似文献

通过改变MHC锚定残基来改善t细胞抗原是一种常用的增强肽疫苗的策略,但很少有人评估这种修饰如何影响TCR结合和t细胞识别。在这里,我们使用表面等离子体共振和细胞表面肽- mhc四聚体结合来证明初级肽锚定残基的变化可以显著且不可预测地改变TCR结合。我们还证明,TCRs区分天然和锚修饰的异肽的能力区分了对任何一种抗原表现出强烈偏好的t细胞。此外,我们发现锚修饰的异质肽与天然抗原相比,可以用不同的tcr诱导t细胞。因此,用异肽接种可能会导致t细胞对预期的天然抗原表现出次优的识别,从而在体内损害功能属性。因此,需要仔细评估基于多肽的免疫干预措施,以确保临床疗效。
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.
DOI: 10.1126/science.1129003
发表时间: 2006-10-06
期刊: SCIENCE
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
DOI: 10.1016/0167-7799(96)10045-7
发表时间: 1996-09-01
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
DOI: 10.4049/jimmunol.170.4.2161
发表时间: 2003-02-15
影响因子: 4.4
作者:
Meidenbauer, N;Marienhagen, J;Mackensen, A
通讯作者: Mackensen, A