Reduction of AUF1-mediated follistatin mRNA decay during glucose starvation protects cells from apoptosis.
Reduction of AUF1-mediated follistatin mRNA decay during glucose starvation protects cells from apoptosis.
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葡萄糖饥饿期间 AUF1 介导的卵泡抑素 mRNA 衰减的减少可保护细胞免于凋亡。
DOI:
10.1093/nar/gku778
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发表时间:
2014
影响因子:
14.9
通讯作者:
Xu Z
中科院分区:
文献类型:
--
作者:
Gao X;Dong H;Lin C;Sheng J;Zhang F;Su J;Xu Z
Follistatin (FST) performs several vital functions in the cells, including protection from apoptosis during stress. The expression of FST is up-regulated in response to glucose deprivation by an unknown mechanism. We herein showed that the induction of FST by glucose deprivation was due to an increase in the half-life of its mRNA. We further identified an AU-rich element (ARE) in the 3′UTR of FST mRNA that mediated its decay. The expression of FST was elevated after knocking down AUF1 and reduced when AUF1 was further expressed. In vitro binding assays and RNA pull-down assays revealed that AUF1 interacted with FST mRNA directly via its ARE. During glucose deprivation, a majority of AUF1 shuttled from cytoplasm to nucleus, resulting in dissociation of AUF1 from FST mRNA and thus stabilization of FST mRNA. Finally, knockdown of AUF1 decreased whereas overexpression of AUF1 increased glucose deprivation-induced apoptosis. The apoptosis promoting effect of AUF1 was eliminated in FST expressing cells. Collectively, this study provided evidence that AUF1 is a negative regulator of FST expression and participates in the regulation of cell survival under glucose deprivation.
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影响因子:
10.5
作者:
Loflin, P;Chen, CYA;Shyu, AB
通讯作者:
Shyu, AB
影响因子:
56.9
作者:
NAKAMURA, T;TAKIO, K;SUGINO, H
通讯作者:
SUGINO, H
影响因子:
8
作者:
Bartholin, L;Maguer-Satta, V;Rimokh, R
通讯作者:
Rimokh, R
影响因子:
14.9
作者:
Barreau C;Paillard L;Osborne HB
通讯作者:
Osborne HB
影响因子:
5.3
作者:
BREWER, G
通讯作者:
BREWER, G