The transcription factor NFAT exhibits signal memory during serial T cell interactions with antigen-presenting cells.
The transcription factor NFAT exhibits signal memory during serial T cell interactions with antigen-presenting cells.
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DOI:
10.1016/j.immuni.2012.09.012
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发表时间:
2013-02-21
期刊:
影响因子:
32.4
通讯作者:
Mempel TR
中科院分区:
文献类型:
--
作者:
Marangoni F;Murooka TT;Manzo T;Kim EY;Carrizosa E;Elpek NM;Mempel TR
Interactions with antigen-presenting cells (APCs) interrupt T cell migration through tissues and trigger signaling pathways that converge on the activation of transcriptional regulators, including NFAT, which control T cell function and differentiation. Both stable and unstable modes of cognate T cell-APC interactions have been observed in vivo, but the functional significance of unstable, serial contacts has remained unclear. Here we used multiphoton intravital microscopy in lymph nodes and tumors to show that while NFAT nuclear import was fast (t1/2 max~1min), nuclear export was slow (t1/2~20min) in T cells. During delayed export, nuclear NFAT constituted a short-term imprint of transient TCR signals and remained transcriptionally active for the T cell tolerance gene Egr2, but not for the effector gene Ifng, which required continuous TCR triggering for expression. This provides a potential mechanistic basis for the observation that a predominance of unstable APC interactions correlates with the induction of T cell tolerance.
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DOI:
10.1084/jem.20061890
发表时间:
2007-02-19
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Boissonnas A;Fetler L;Zeelenberg IS;Hugues S;Amigorena S
通讯作者:
Amigorena S
影响因子:
4.4
作者:
Faroudi, M;Zaru, R;Valitutti, S
通讯作者:
Valitutti, S
影响因子:
32.4
作者:
Mempel, Thorsten R.;Pittet, Mikael J.;von Andrian, Ulrich H.
通讯作者:
von Andrian, Ulrich H.
影响因子:
64.5
作者:
CHEN, LP;ASHE, S;LINSLEY, PS
通讯作者:
LINSLEY, PS
影响因子:
30.5
作者:
Henrickson, Sarah E.;Mempel, Thorsten R.;von Andrian, Ulrich H.
通讯作者:
von Andrian, Ulrich H.