首页> 外文期刊>Journal of Neuroimmunology: Official Bulletin of the Research Committee on Neuroimmunology of the World Federation of Neurology >Dopamine receptors D3 and D5 regulate CD4(+) T-cell activation and differentiation by modulating ERK activation and cAMP production
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Dopamine receptors D3 and D5 regulate CD4(+) T-cell activation and differentiation by modulating ERK activation and cAMP production

机译:多巴胺受体D3和D5通过调节ERK激活和cAMP产生来调节CD4(+)T细胞的激活和分化。

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摘要

Dopamine receptors have been described in T-cells, however their signalling pathways coupled remain unknown. Since cAMP and ERKs play key roles regulating T-cell physiology, we aim to determine whether cAMP and ERK1/2-phosphorylation are modulated by dopamine receptor 3 (D3R) and D5R, and how this modulation affects CD4(+) T-cell activation and differentiation. Our pharmacologic and genetic evidence shows that D3R-stimulation reduced CAMP levels and ERK2-phosphorylation, consequently increasing CD4(+) T-cell activation and Th1-differentiation, respectively. Moreover, D5R expression reinforced TCR-triggered ERK1/2-phosphorylation and T-cell activation. In conclusion, these findings demonstrate how D3R and D5R modulate key signalling pathways affecting CD4(+) T-cell activation and Th1-differentiation. (C) 2015 Elsevier B.V. All rights reserved.
机译:多巴胺受体已经在T细胞中进行了描述,但是它们耦合的信号传导途径仍然未知。由于cAMP和ERK在调节T细胞生理中起着关键作用,因此我们旨在确定cAMP和ERK1 / 2磷酸化是否受到多巴胺受体3(D3R)和D5R的调节,以及这种调节如何影响CD4(+)T细胞活化和差异化。我们的药理和遗传证据表明,D3R刺激降低了CAMP水平和ERK2磷酸化,因此分别增加了CD4(+)T细胞活化和Th1分化。此外,D5R表达增强了TCR触发的ERK1 / 2磷酸化和T细胞活化。总之,这些发现证明了D3R和D5R如何调节影响CD4(+)T细胞活化和Th1分化的关键信号通路。 (C)2015 Elsevier B.V.保留所有权利。

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