Poly(ADP-ribosyl)ation enhances HuR oligomerization and contributes to pro-inflammatory gene mRNA stabilization.
Poly(ADP-ribosyl)ation enhances HuR oligomerization and contributes to pro-inflammatory gene mRNA stabilization.
复制标题
聚 (ADP-核糖基) 化增强 HuR 寡聚化并有助于促炎基因 mRNA 稳定
DOI:
10.1007/s00018-020-03618-4
复制
发表时间:
2021-03
期刊:
影响因子:
--
通讯作者:
Ba X
中科院分区:
文献类型:
--
作者:
Ke Y;Lv X;Fu X;Zhang J;Bohio AA;Zeng X;Hao W;Wang R;Boldogh I;Ba X
Poly(ADP-ribosyl)ation (PARylation) is an important post-translational modification mainly catalyzed by poly-ADP-ribose polymerase 1 (PARP1). In addition to having important roles in DNA damage detection and repair, it functions in gene expression regulation, especially at the posttranscriptional level. Embryonic lethal abnormal vision-like 1/human antigen R (ELAVL/HuR), a canonical 3′ untranslated region AU-rich element-binding protein, is a crucial mRNA-stabilizing protein that protects target mRNAs from RNA-destabilizing protein- or microRNA-induced silencing complex (miRISC)-mediated degradation. Additionally, in some cases, HuR itself either promotes or suppresses translation. Here, we demonstrated that in response to inflammatory stimuli, the PARylation of HuR, mostly at the conserved D226 site, by PARP1 increased the formation of the HuR oligomer/multimer, and HuR oligomerization promoted the disassociation of miRISC and stabilized the pro-inflammatory gene mRNAs. The prevention of PARP1 activation or HuR oligomerization attenuated lipopolysaccharide-induced inflammatory gene expression and the airway recruitment of neutrophils in mouse lungs. The present study verified a novel mechanism of PARP1 and HuR PARylation in the RNA stability regulation, increasing our understanding of how PARP1 regulates gene expression.
登录
查看更多内容
DOI:
10.1073/pnas.1412172111
发表时间:
2014-12-23
影响因子:
11.1
作者:
Chang, Sung-Hee;Elemento, Olivier;Hla, Timothy
通讯作者:
Hla, Timothy
影响因子:
11.1
作者:
Dan C;Jinjun B;Zi-Chun H;Lin M;Wei C;Xu Z;Ri Z;Shun C;Wen-Zhu S;Qing-Cai J;Wu Y
通讯作者:
Wu Y
影响因子:
4.5
作者:
Gallouzi, IE;Brennan, CM;Steitz, JA
通讯作者:
Steitz, JA
DOI:
10.1073/pnas.95.26.15293
发表时间:
1998-12-22
影响因子:
11.1
作者:
Fan, XHC;Steitz, JA
通讯作者:
Steitz, JA
影响因子:
7
作者:
Hendriks, Ivo A.;Larsen, Sara C.;Nielsen, Michael L.
通讯作者:
Nielsen, Michael L.