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The Retinoic Acid Receptor-alpha mediates human T-cell activation and Th2 cytokine and chemokine production.
BMC Immunology ( IF 2.9 ) Pub Date : 2008-04-16 , DOI: 10.1186/1471-2172-9-16
Harry D Dawson 1 , Gary Collins , Robert Pyle , Michael Key , Dennis D Taub
Affiliation  

BACKGROUND We have recently demonstrated that all-trans-retinoic acid (ATRA) and 9-cis-retinoic acid (9-cis RA) promote IL-4, IL-5 and IL-13 synthesis, while decreasing IFN-gamma and TNF-alpha expression by activated human T cells and reduces the synthesis of IL-12p70 from accessory cells. Here, we have demonstrated that the observed effects using ATRA and 9-cis RA are shared with the clinically useful RAR ligand, 13-cis retinoic acid (13-cis RA), and the retinoic acid receptor-alpha (RAR-alpha)-selective agonist, AM580 but not with the RAR-beta/gamma ligand, 4-hydroxyphenylretinamide (4-HPR). RESULTS The increase in type 2 cytokine production by these retinoids correlated with the expression of the T cell activation markers, CD69 and CD38. The RAR-alpha-selective agonist, AM580 recapitulated all of the T cell activation and type 2 cytokine-inducing effects of ATRA and 9-cis-RA, while the RAR-alpha-selective antagonist, RO 41-5253, inhibited these effects. CONCLUSION These results strongly support a role for RAR-alpha engagement in the regulation of genes and proteins involved with human T cell activation and type 2 cytokine production.

中文翻译:

视黄酸受体-α 介导人类 T 细胞活化和 Th2 细胞因子和趋化因子的产生。

背景我们最近证明全反式视黄酸 (ATRA) 和 9-顺式视黄酸 (9-cis RA) 促进 IL-4、IL-5 和 IL-13 合成,同时降低 IFN-γ 和 TNF- α 表达通过激活的人类 T 细胞并减少辅助细胞合成 IL-12p70。在这里,我们已经证明,使用 ATRA 和 9-cis RA 观察到的效果与临床有用的 RAR 配体、13-顺式视黄酸 (13-cis RA) 和视黄酸受体-α (RAR-α) 相同。选择性激动剂 AM580,但不与 RAR-β/γ 配体 4-羟基苯基视黄酰胺 (4-HPR) 结合。结果 这些类视色素产生的 2 型细胞因子的增加与 T 细胞活化标志物 CD69 和 CD38 的表达相关。RAR-α 选择性激动剂,AM580 概括了 ATRA 和 9-cis-RA 的所有 T 细胞活化和 2 型细胞因子诱导作用,而 RAR-α 选择性拮抗剂 RO 41-5253 抑制了这些作用。结论 这些结果强烈支持 RAR-α 参与调节与人类 T 细胞活化和 2 型细胞因子产生相关的基因和蛋白质的作用。
更新日期:2019-11-01
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