Glycogen synthase kinase 3 regulates expression of nuclear factor-erythroid-2 related transcription factor-1 (Nrf1) and inhibits pro-survival function of Nrf1.
Glycogen synthase kinase 3 regulates expression of nuclear factor-erythroid-2 related transcription factor-1 (Nrf1) and inhibits pro-survival function of Nrf1.
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DOI:
10.1016/j.yexcr.2013.04.013
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发表时间:
2013-08-01
影响因子:
3.7
通讯作者:
Chan, Jefferson Y.
中科院分区:
文献类型:
--
作者:
Biswas, Madhurima;Kwong, Erick K.;Park, Eujean;Nagra, Parminder;Chan, Jefferson Y.
Nuclear factor E2-related factor-1 (Nrf1) is a basic leucine zipper transcription factor that is known to regulate antioxidant and cytoprotective gene expression. It was recently shown that Nrf1 is regulated by SCF-Fbw7 ubiquitin ligase. However our knowledge of upstream signals that targets Nrf1 for degradation by the UPS is not known. We report here that Nrf1 expression is negatively regulated by glycogen synthase kinase 3 (GSK3) in Fbw7-dependent manner. We show that GSK3 interacts with Nrf1 and phosphorylates the Cdc4 phosphodegron domain (CPD) in Nrf1. Mutation of serine residue in the CPD of Nrf1 to alanine (S350A), blocks Nrf1 from phosphorylation by GSK3, and stabilizes Nrf1. Knockdown of Nrf1 and expression of a constitutively active form of GSK3 results in increased apoptosis in neuronal cells in response to ER stress, while expression of the GSK3 phosphorylation resistant S350A–Nrfl attenuates apoptotic cell death. Together these data suggest that GSK3 regulates Nrf1 expression and cell survival function in response to stress activation.
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影响因子:
5.3
作者:
Chen, LY;Kwong, M;Chan, JY
通讯作者:
Chan, JY
DOI:
10.1073/pnas.1019209108
发表时间:
2011-05-17
影响因子:
11.1
作者:
Lee, Candy S.;Lee, Chiashan;Chan, Jefferson Y.
通讯作者:
Chan, Jefferson Y.
影响因子:
11.2
作者:
Ohta, Tsutonm;Iijima, Kumiko;Hirohashi, Setsuo
通讯作者:
Hirohashi, Setsuo
影响因子:
15.8
作者:
Singh A;Misra V;Thimmulappa RK;Lee H;Ames S;Hoque MO;Herman JG;Baylin SB;Sidransky D;Gabrielson E;Brock MV;Biswal S
通讯作者:
Biswal S
影响因子:
11.2
作者:
Jiang T;Chen N;Zhao F;Wang XJ;Kong B;Zheng W;Zhang DD
通讯作者:
Zhang DD