Lineage tracing and cell ablation identify a post-Aire-expressing thymic epithelial cell population.
Lineage tracing and cell ablation identify a post-Aire-expressing thymic epithelial cell population.
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DOI:
10.1016/j.celrep.2013.08.038
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发表时间:
2013-10-17
期刊:
影响因子:
8.8
通讯作者:
Anderson MS
中科院分区:
文献类型:
--
作者:
Metzger TC;Khan IS;Gardner JM;Mouchess ML;Johannes KP;Krawisz AK;Skrzypczynska KM;Anderson MS
Thymic epithelial cells in the medulla (mTECs) play a critical role in enforcing central tolerance through expression and presentation of tissue-specific antigens (TSAs) and deletion of autoreactive thymocytes. TSA expression requires autoimmune regulator (Aire), a transcriptional activator present in a subset of mTECs characterized by high CD80 and MHC II expression and a lack of potential for differentiation or proliferation. Here, using an Aire-DTR transgenic line, we show that short-term ablation specifically targets Aire+ mTECs, which quickly undergo RANK-dependent recovery. Repeated ablation also affects Aire− mTECs, and using an inducible Aire-Cre fate-mapping system, we find that this results from the loss of a subset of mTECs that showed prior expression of Aire, maintains intermediate TSA expression, and preferentially migrates towards the center of the medulla. These results clearly identify a distinct stage of mTEC development and underscore the diversity of mTECs that play a key role in maintaining tolerance.
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DOI:
10.1126/science.1159407
发表时间:
2008-08-08
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Gardner JM;Devoss JJ;Friedman RS;Wong DJ;Tan YX;Zhou X;Johannes KP;Su MA;Chang HY;Krummel MF;Anderson MS
通讯作者:
Anderson MS
影响因子:
32.4
作者:
Jung, S;Unutmaz, D;Lang, RA
通讯作者:
Lang, RA
DOI:
10.1084/jem.20090300
发表时间:
2009-06-08
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Guerau-de-Arellano M;Martinic M;Benoist C;Mathis D
通讯作者:
Mathis D
DOI:
10.1084/jem.20070795
发表时间:
2007-10-29
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Gray D;Abramson J;Benoist C;Mathis D
通讯作者:
Mathis D
影响因子:
30.5
作者:
Aschenbrenner, Katharina;D'Cruz, Louise M.;Klein, Ludger
通讯作者:
Klein, Ludger