Evidence that the density of self peptide-MHC ligands regulates T-cell receptor signaling.
Evidence that the density of self peptide-MHC ligands regulates T-cell receptor signaling.
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DOI:
10.1371/journal.pone.0041466
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发表时间:
2012
期刊:
影响因子:
3.7
通讯作者:
Sykulev Y
中科院分区:
文献类型:
--
作者:
Anikeeva N;Gakamsky D;Schøller J;Sykulev Y
Noncognate or self peptide-MHC (pMHC) ligands productively interact with T-cell receptor (TCR) and are always in a large access over the cognate pMHC on the surface of antigen presenting cells. We assembled soluble cognate and noncognate pMHC class I (pMHC-I) ligands at designated ratios on various scaffolds into oligomers that mimic pMHC clustering and examined how multivalency and density of the pMHCs in model clusters influences the binding to live CD8 T cells and the kinetics of TCR signaling. Our data demonstrate that the density of self pMHC-I proteins promotes their interaction with CD8 co-receptor, which plays a critical role in recognition of a small number of cognate pMHC-I ligands. This suggests that MHC clustering on live target cells could be utilized as a sensitive mechanism to regulate T cell responsiveness.
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影响因子:
2.9
作者:
Anikeeva, N;Lebedeva, T;Sykulev, Y
通讯作者:
Sykulev, Y
DOI:
10.1073/pnas.96.4.1547
发表时间:
1999-02-16
影响因子:
11.1
作者:
Fernández-Miguel, G;Alarcón, B;de la Hera, A
通讯作者:
de la Hera, A
影响因子:
64.8
作者:
CHICZ, RM;URBAN, RG;STROMINGER, JL
通讯作者:
STROMINGER, JL
DOI:
10.1073/pnas.86.7.2190
发表时间:
1989-04-01
影响因子:
11.1
作者:
HENDRICKSON, WA;PAHLER, A;PHIZACKERLEY, RP
通讯作者:
PHIZACKERLEY, RP
影响因子:
3.4
作者:
Capps, GG;Pine, S;Zúñiga, MC
通讯作者:
Zúñiga, MC