A peptide antagonist disrupts NK cell inhibitory synapse formation.
A peptide antagonist disrupts NK cell inhibitory synapse formation.
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DOI:
10.4049/jimmunol.1201032
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发表时间:
2013-03-15
期刊:
影响因子:
--
通讯作者:
Khakoo SI
中科院分区:
文献类型:
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作者:
Borhis G;Ahmed PS;Mbiribindi B;Naiyer MM;Davis DM;Purbhoo MA;Khakoo SI
Productive engagement of MHC Class I by inhibitory NK cell receptors depends on the peptide bound by the MHC class I molecule. Peptide:MHC complexes that bind weakly to killer cell immunoglobulin-like receptors (KIR) can antagonize the inhibition mediated by high affinity peptide:MHC complexes and cause NK cell activation. We show that low affinity peptide:MHC complexes stall inhibitory signalling at the step of SHP-1 recruitment and do not go on to form the KIR microclusters induced by high affinity peptide:MHC, which are associated with Vav dephosphorylation and downstream signalling. Furthermore the low affinity peptide:MHC complexes prevented the formation of KIR microclusters by high affinity peptide:MHC. Thus peptide antagonism of NK cells is an active phenomenon of inhibitory synapse disruption.
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影响因子:
3.7
作者:
Schleinitz N;March ME;Long EO
通讯作者:
Long EO
影响因子:
4.4
作者:
Almeida, Catarina R.;Davis, Daniel M.
通讯作者:
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影响因子:
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作者:
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通讯作者:
LONG, EO
DOI:
10.1073/pnas.0604236103
发表时间:
2006-07-05
影响因子:
11.1
作者:
Chen, Xi;Allan, David S. J.;Strominger, Jack L.
通讯作者:
Strominger, Jack L.
影响因子:
64.8
作者:
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