Cutting edge: cell surface linker for activation of T cells is recruited to microclusters and is active in signaling.
Cutting edge: cell surface linker for activation of T cells is recruited to microclusters and is active in signaling.
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DOI:
10.4049/jimmunol.1202760
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发表时间:
2013-04-15
期刊:
影响因子:
--
通讯作者:
Samelson LE
中科院分区:
文献类型:
--
作者:
Balagopalan L;Barr VA;Kortum RL;Park AK;Samelson LE
A controversy has recently emerged regarding the location of the cellular pool of the adapter LAT that participates in propagation of signals downstream of the T Cell Antigen Receptor (TCR). In one model phosphorylation and direct recruitment of cell surface LAT to activation-induced microclusters is critical for T cell activation, while in the other model vesicular, but not surface, LAT participates in these processes. By using a chimeric version of LAT which can be tracked via an extracellular domain, we provide evidence that LAT located at the cell surface can be recruited efficiently to activation-induced microclusters within seconds of TCR engagement. Importantly, we also demonstrate that this pool of LAT at the plasma membrane is rapidly phosphorylated. Our results provide support for the model in which the cell utilizes LAT from the cell surface for rapid responses to TCR stimulation.
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影响因子:
4.4
作者:
Houtman, JCD;Houghtling, RA;Samelson, LE
通讯作者:
Samelson, LE
影响因子:
7.2
作者:
Balagopalan, Lakshmi;Coussens, Nathan P.;Sommers, Connie L.
通讯作者:
Sommers, Connie L.
影响因子:
5.3
作者:
Balagopalan, Lakshmi;Barr, Valarie A.;Samelson, Lawrence E.
通讯作者:
Samelson, Lawrence E.
影响因子:
7.3
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通讯作者:
Davis, Daniel M.
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4
作者:
Bonello, G;Blanchard, N;Collette, Y
通讯作者:
Collette, Y