IL-17 integrates multiple self-reinforcing, feed-forward mechanisms through the RNA binding protein Arid5a.

IL-17 integrates multiple self-reinforcing, feed-forward mechanisms through the RNA binding protein Arid5a.
复制标题

DOI:
10.1126/scisignal.aat4617
复制
发表时间:
2018-10-09
期刊:
影响因子:
7.3
通讯作者:
Gaffen SL
Gaffen SL
中科院分区:
生物学1区
文献类型:
--
作者:
Amatya N;Childs EE;Cruz JA;Aggor FEY;Garg AV;Berman AJ;Gudjonsson JE;Atasoy U;Gaffen SL

文献摘要

参考文献

被引文献

相似文献

Interleukin-17A 可刺激对真菌病原体的免疫力,但也会导致自身免疫病理。在实验组织培养环境中,IL-17 只是一种适度的转录激活剂。然而,IL-17 控制增强靶 mRNA 表达的转录后事件。在这里,我们发现 RNA 结合蛋白 (RBP) Arid5a(富含 AT 的相互作用结构域蛋白 5a)通过 mRNA 的转录后控制整合了多个 IL-17 驱动的信号通路。 IL-17 诱导 Arid5a 表达,Arid5a 被招募到接头 TRAF2 中。 Arid5a 通过与 3' 非翻译区结合来稳定 IL-17 诱导的细胞因子转录物,并抵消核糖核酸内切酶 MCPIP1 (Regnase-1) 介导的 mRNA 降解。 Arid5a 与真核翻译起始复合物诱导相关,并促进转录因子 (TF) IκBΧ (Nfkbiz) 和 C/EBPβ (Cebpb) 的翻译。这些 TF 反过来反式激活 IL-17 依赖性启动子。这些数据共同表明,Arid5a 协调了一个前馈放大环,通过控制 mRNA 稳定性和翻译来促进 IL-17 信号传导。
Interleukin-17A stimulates immunity to fungal pathogens, but also contributes to autoimmune pathology. IL-17 is only a modest activator of transcription in experimental tissue culture settings. However, IL-17 controls post-transcriptional events that enhance the expression of target mRNAs. Here, we showed that the RNA-binding protein (RBP) Arid5a (AT-rich interactive domain-containing protein 5a) integrated multiple IL-17-driven signaling pathways through post-transcriptional control of mRNA. IL-17 induced expression of Arid5a, which was recruited to the adaptor TRAF2. Arid5a stabilized IL-17-induced cytokine transcripts by binding to their 3’ untranslated regions and also counteracted mRNA degradation mediated by the endoribonuclease MCPIP1 (Regnase-1). Arid5a inducibly associated with the eukaryotic translation initiation complex and facilitated the translation of the transcription factors (TFs) IκBξ (Nfkbiz) and C/EBPβ (Cebpb). These TFs in turn transactivated IL-17-dependent promoters. Together these data indicated that Arid5a orchestrates a feed-forward amplification loop, which promoted IL-17 signaling by controlling mRNA stability and translation.
DOI: 10.1038/s41590-018-0071-9
发表时间: 2018-04
期刊: Nature immunology
影响因子: 30.5
作者:
Herjan T;Hong L;Bubenik J;Bulek K;Qian W;Liu C;Li X;Chen X;Yang H;Ouyang S;Zhou H;Zhao J;Vasu K;Cockman E;Aronica M;Asosingh K;Licatalosi DD;Qin J;Fox PL;Hamilton TA;Driscoll D;Li X
通讯作者: Li X
DOI: 10.1152/ajpheart.00928.2007
发表时间: 2007-12-01
影响因子: 4.8
作者:
Cortez, Dolores M.;Feldman, Marc D.;Chandrasekar, Bysani
通讯作者: Chandrasekar, Bysani
DOI: 10.1016/j.jaci.2004.06.023
发表时间: 2004-10-01
影响因子: 14.2
作者:
Henness, S;Johnson, CK;Ammit, AJ
通讯作者: Ammit, AJ
DOI: 10.1073/pnas.92.16.7192
发表时间: 1995-08-01
影响因子: 11.1
作者:
GAFFEN, SL;LAI, SY;GREENE, WC
通讯作者: GREENE, WC
DOI: 10.1038/nri3707
发表时间: 2014-09
期刊: Nature reviews. Immunology
影响因子: --
作者:
通讯作者: --