Clustering Class I MHC Modulates Sensitivity of T Cell Recognition1
Clustering Class I MHC Modulates Sensitivity of T Cell Recognition1
复制标题
I 类 MHC 聚类调节 T 细胞识别的敏感性1
作者:
David R Fooksman;Gigi Kwik Grönvall;Q. Tang;M. Edidin
T cell recognition of peptide-MHC is highly specific and is sensitive to very low levels of agonist peptide; however, it is unclear how this effect is achieved or regulated. In this study we show that clustering class I MHC molecules on the cell surface of B lymphoblasts enhances their recognition by mouse and human T cells. We increased clustering of MHC I molecules by two methods, cholesterol depletion and direct cross-linking of a dimerizable MHC construct. Imaging showed that both treatments increased the size and intensity of MHC clusters on the cell surface. Enlarged clusters correlated with enhanced lysis and T cell effector function. Enhancements were peptide-specific and greatest at low concentrations of peptide. Clustering MHC class I enhanced recognition of both strong and weak agonists but not null peptide. Our results indicate that the lateral organization of MHC class I on the cell surface can modulate the sensitivity of T cell recognition of agonist peptide.
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影响因子:
32.4
作者:
Sykulev, Y;Joo, M;Eisen, HN
通讯作者:
Eisen, HN
DOI:
10.1091/mbc.01-07-0322
发表时间:
2002
期刊:
Molecular biology of the cell.
影响因子:
--
作者:
Spiliotis,EliasT;Pentcheva,Tsvetelina;Edidin,Michael
通讯作者:
Edidin,Michael
影响因子:
32.4
作者:
Sykulev,Y;Vugmeyster,Y;Brunmark,A;Ploegh,HL;Eisen,HN
通讯作者:
Eisen,HN
DOI:
--
发表时间:
1994
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Matko,J;Bushkin,Y;Wei,T;Edidin,M
通讯作者:
Edidin,M
DOI:
10.1073/pnas.91.24.11487
发表时间:
1994
影响因子:
11.1
作者:
Sykulev,Y;Brunmark,A;Tsomides,TJ;Kageyama,S;Jackson,M;Peterson,PA;Eisen,HN
通讯作者:
Eisen,HN