首页> 外文期刊>Journal of Neuroimmunology: Official Bulletin of the Research Committee on Neuroimmunology of the World Federation of Neurology >Molecular characterization of immune derived proenkephalin mRNA and the involvement of the adrenergic system in its expression in rat lymphoid cells.
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Molecular characterization of immune derived proenkephalin mRNA and the involvement of the adrenergic system in its expression in rat lymphoid cells.

机译:免疫衍生的前脑啡肽mRNA的分子特征以及肾上腺素系统在大鼠淋巴样细胞表达中的参与。

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摘要

Proenkephalin (PENK), a classically defined opioid gene, was originally thought to be expressed almost exclusively in the mature nervous and neuroendocrine systems. In the last few years, it was demonstrated, however, that significant levels of PENK mRNA and PENK-derived peptides are transiently expressed in cells of the immune system. Very little is known about the molecular mechanisms regulating this transient expression. In order to investigate those mechanisms, we examined the in vivo expression of PENK mRNA in mesenteric lymph nodes after exposing rats to lipopolysaccharide. In the present study we demonstrate that: (i) promoter usage and splicing of PENK mRNA function similarly in mesenteric lymph nodes as in neural cells; (2) PENK expression in mesenteric lymph nodes is modulated by adrenaline via adrenergic receptors; and (3) the adrenergic system participates in the modulation of the LPS induced PENK mRNA expression. These results provide more evidence for the involvement of opioids in neuro-immune interactions.
机译:原脑啡肽(PENK)是经典定义的阿片类药物基因,最初被认为几乎只在成熟的神经和神经内分泌系统中表达。然而,在最近几年中,证明了在免疫系统的细胞中瞬时表达大量的PENK mRNA和PENK衍生的肽。关于调节这种瞬时表达的分子机制知之甚少。为了研究这些机制,我们在将大鼠暴露于脂多糖后检查了肠系膜淋巴结中PENK mRNA的体内表达。在本研究中,我们证明:(i)启动子的使用和PENK mRNA的剪接在肠系膜淋巴结中的功能与在神经细胞中的功能相似; (2)肾上腺素通过肾上腺素能受体调节肠系膜淋巴结的PENK表达; (3)肾上腺素系统参与LPS诱导的PENK mRNA表达的调节。这些结果为阿片类药物参与神经-免疫相互作用提供了更多证据。

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