Cutting edge: Inhibition of NF-kappaB-mediated TSLP expression by retinoid X receptor.

Cutting edge: Inhibition of NF-kappaB-mediated TSLP expression by retinoid X receptor.
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尖端:抑制视黄素X受体对NF-kappab介导的TSLP表达的抑制作用。

DOI:
10.4049/jimmunol.181.8.5189
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发表时间:
2008-10-15
影响因子:
4.4
通讯作者:
Ziegler, Steven F.
Ziegler, Steven F.
中科院分区:
医学2区
文献类型:
--
作者:
Lee, Hai-Chon;Headley, Mark B.;Iseki, Masanori;Ikuta, Koichi;Ziegler, Steven F.

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胸腺基质淋巴细胞生成素(TSLP)在过敏性气道炎症的发生和树突状细胞的活化中起重要作用。我们已经证明人TSLP基因是以NFκ B依赖的方式调节的,但是负调节TSLP表达的因素还不清楚。在本文中,我们证明,9-顺式维甲酸(9-cisRA)是气道上皮细胞TSLP表达的负调节剂。这种抑制表现为阻断IL-1β介导的NFκB向人TSLP启动子的募集。9-cisRA介导的抑制不限于TSLP基因表达,而是反映了对NFκB活化的一般抑制,因为9-cisRA处理也以类似的方式抑制了其他NFκ B调节的基因。总的来说,这些数据表明活性RXR对IL-1β依赖性基因的抑制涉及NFκB信号传导的拮抗作用。
The epithelial-derived cytokine thymic stromal lymphopoietin (TSLP) has important roles in the initiation of allergic airway inflammation and activation of dendritic cells. We have shown that the human TSLP gene is regulated in an NFκB-dependent manner; however the factors that negatively regulate TSLP expression are not known. In this paper we demonstrate that 9-cis retinoic acid (9-cisRA) is a negative regulator of TSLP expression in airway epithelial cells. This inhibition is manifested as a block in the IL-1β-mediated recruitment of NFκB to the human TSLP promoter. 9-cisRA-mediated inhibition is not restricted to TSLP gene expression, but rather reflected a general inhibition of NFκB activation as other NFκB-regulated-genes were also inhibited in a similar manner by 9-cisRA treatment. Taken as a whole, these data demonstrate that inhibition of IL-1β-dependent genes by active RXR involves antagonism of NFκB signaling.
DOI: 10.1016/0092-8674(92)90479-v
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期刊: CELL
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