The glutaredoxin/S-glutathionylation axis regulates interleukin-17A-induced proinflammatory responses in lung epithelial cells in association with S-glutathionylation of nuclear factor κB family proteins.
The glutaredoxin/S-glutathionylation axis regulates interleukin-17A-induced proinflammatory responses in lung epithelial cells in association with S-glutathionylation of nuclear factor κB family proteins.
复制标题
谷氧还蛋白/S-谷胱甘肽轴调节肺上皮细胞中白细胞介素 17A 诱导的促炎症反应,与核因子 κB 家族蛋白的 S-谷胱甘肽化相关。
DOI:
10.1016/j.freeradbiomed.2014.04.028
复制
发表时间:
2014-08
影响因子:
7.4
通讯作者:
Janssen-Heininger, Yvonne M. W.
中科院分区:
文献类型:
--
作者:
Nolin, James D.;Tully, Jane E.;Hoffman, Sidra M.;Guala, Amy S.;van der Velden, Jos L.;Poynter, Matthew E.;van der Vliet, Albert;Anathy, Vikas;Janssen-Heininger, Yvonne M. W.
关键词:
Interleukin-17A (IL-17A) is a newly emerging player in the pathogenesis of chronic lung diseases that amplifies inflammatory responses and promotes tissue remodeling. Stimulation of lung epithelial cells with IL-17A leads to activation of the transcription factor, nuclear factor kappa B (NF-κB), a key player in the orchestration of lung inflammation. We have previously demonstrated the importance of the redox-dependent post-translational modification, S-glutathionylation, in limiting activation of NF-κB and downstream gene induction. Under physiological conditions, the enzyme glutaredoxin 1 (Grx1) acts to deglutathionylate NF-κB proteins, which restores functional activity. In this study, we sought to determine the impacts of S-glutathionylation on IL-17A-induced NF-κB activation and expression of pro-inflammatory mediators. C10 mouse lung alveolar epithelial cells, or primary mouse tracheal epithelial cells exposed to IL-17A show rapid activation of NF-κB, and the induction of pro-inflammatory genes. Upon IL-17A exposure, sulfenic acid formation and S-glutathionylated proteins increased. Assessment of S-glutathionylation of NF-κB pathway components revealed S-glutathionylation of RelA (RelA-SSG) and inhibitory kappa B kinase alpha (IKKα-SSG) after stimulation with IL-17A. SiRNA-mediated ablation of Grx1 increased both RelA-SSG and IKKα-SSG and acutely increased nuclear content of RelA, and tended to decrease nuclear RelB. SiRNA mediated ablation or genetic ablation of Glrx1 decreased the expression of NF-κB regulated genes, KC and CCL20, in response to IL-17A, but conversely increased the expression of IL-6. Lastly, siRNAmediated ablation of IKKα attenuated nuclear RelA and RelB content and decreased expression of KC and CCL20 in response to IL-17A. Together, these data demonstrate a critical role for the S-glutathionylation/Grx1 redox axis in regulating IKKα and RelA S-glutathionylation and the responsiveness of epithelial cells to IL-17A.
登录
查看更多内容
影响因子:
3.7
作者:
Gasse P;Riteau N;Vacher R;Michel ML;Fautrel A;di Padova F;Fick L;Charron S;Lagente V;Eberl G;Le Bert M;Quesniaux VF;Huaux F;Leite-de-Moraes M;Ryffel B;Couillin I
通讯作者:
Couillin I
影响因子:
4.4
作者:
Gaffen, Sarah L.;Hernandez-Santos, Nydiaris;Peterson, Alanna C.
通讯作者:
Peterson, Alanna C.
影响因子:
4.4
作者:
Kao, CY;Chen, Y;Wu, R
通讯作者:
Wu, R
影响因子:
30.5
作者:
Gringhuis, Sonja I.;den Dunnen, Jeroen;Geijtenbeek, Teunis B. H.
通讯作者:
Geijtenbeek, Teunis B. H.
影响因子:
7.7
作者:
Fusco, Amanda J.;Huang, De-Bin;Ghosh, Gourisankar
通讯作者:
Ghosh, Gourisankar