Glycogen synthase kinase 3 drives thymocyte egress by suppressing β-catenin activation of Akt.
Glycogen synthase kinase 3 drives thymocyte egress by suppressing β-catenin activation of Akt.
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糖原合成酶激酶 3 通过抑制 Akt 的 β-连环蛋白激活来驱动胸腺细胞流出。
DOI:
10.1126/sciadv.abg6262
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发表时间:
2021-10-08
期刊:
影响因子:
13.6
通讯作者:
Liu WH
中科院分区:
文献类型:
--
作者:
Liu C;Ma L;Wang Y;Zhao J;Chen P;Chen X;Wang Y;Hu Y;Liu Y;Jia X;Yang Z;Yin X;Wu J;Wu S;Zheng H;Ma X;Sun X;He Y;Lin L;Fu Y;Liao K;Zhou X;Jiang S;Fu G;Tang J;Han W;Chen XL;Fan W;Hong Y;Han J;Huang X;Li BA;Xiao N;Xiao C;Fu G;Liu WH
GSK3 controls thymocyte egress by regulating a Foxo1-Klf2-S1P1 axis through dampening β-catenin–mediated Akt activation. Molecular pathways controlling emigration of mature thymocytes from thymus to the periphery remain incompletely understood. Here, we show that T cell–specific ablation of glycogen synthase kinase 3 (GSK3) led to severely impaired thymic egress. In the absence of GSK3, β-catenin accumulated in the cytoplasm, where it associated with and activated Akt, leading to phosphorylation and degradation of Foxo1 and downregulation of Klf2 and S1P1 expression, thereby preventing emigration of thymocytes. A cytoplasmic membrane-localized β-catenin excluded from the nucleus promoted Akt activation, suggesting a new function of β-catenin independent of its role as a transcriptional activator. Furthermore, genetic ablation of β-catenin, retroviral expression of a dominant negative Akt mutant, and transgenic expression of a constitutively active Foxo1 restored emigration of GSK3-deficient thymocytes. Our findings establish an essential role for GSK3 in thymocyte egress and reveal a previously unidentified signaling function of β-catenin in the cytoplasm.
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影响因子:
23.9
作者:
Magee, Jeffrey A.;Ikenoue, Tsuneo;Nakada, Daisuke;Lee, Jae Y.;Guan, Kun-Liang;Morrison, Sean J.
通讯作者:
Morrison, Sean J.
影响因子:
30.5
作者:
通讯作者:
--
DOI:
10.1084/jem.182.4.961
发表时间:
1995-10-01
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Ernst B;Surh CD;Sprent J
通讯作者:
Sprent J
影响因子:
11.8
作者:
Doble, Bradley W.;Patel, Satish;Woodgett, James R.
通讯作者:
Woodgett, James R.
影响因子:
30.5
作者:
Gounari, F;Aifantis, I;von Boehmer, H
通讯作者:
von Boehmer, H