核因子-kB信号调节诺西素受体,但不是诺西素本身
Lan Zhang1,2, Ulrike M Stamer1,2, Robin Moolan-Vadackumchery1,2,3
1Department of Anaesthesiology and Pain Medicine, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland.
Cells
|January 8, 2025
概括
诺西塞系统,涉及诺西塞受体 (NOP) 和诺西塞,可能具有抗炎作用. 核因子-κB (NFκB) 信号调节NOP转录,影响炎症反应.
科学领域:
- 免疫学和分子生物学
- 神经科学和疼痛研究研究
背景情况:
- nociceptin受体 (NOP) 和其连接体 nociceptin 涉及疼痛和炎症通路.
- 核因子-κB (NFκB) 是炎症过程的关键调节者,包括TNF-α和IL-1β等细胞因子的产生.
研究的目的:
- 研究NFκB信号传导在炎症条件下调节诺西素系统中的作用.
- 为了检查瘤亡因子-α (TNF-α) 和介质白素 (IL) - 1β对人类THP-1细胞中NOP和prépronociceptin (ppNOC) 表达的影响.
主要方法:
- 人类的THP-1细胞被博-米里酸 (PMA) 和/或炎症性细胞因子 (TNF-α,IL-1β) 刺激.
- 使用BAY 11-7082,JSH-23或无心酸来抑制NFκB信号传递.
- 基因表达 (NOP,ppNOC mRNA) 通过RT-qPCR量化,并通过流细胞计和ImageStream分析评估蛋白质水平.
主要成果:
- 促炎性细胞因子 (TNF-α,IL-1β) 抑制了PMA刺激细胞中的NOP和ppNOCmRNA水平.
- NFκB抑制剂 (BAY 11-7082,JSH-23) 逆转了TNF-α诱导的NOPmRNA的抑制.
- TNF-α显著促进了NFκB/p65的核转位,而IL-1β没有.
结论:
- 在炎症的背景下,NFκB信号传递是NOP转录的关键调节者.
- 诺西素系统可能在免疫反应期间产生抗炎作用,可能是通过NFκB介导的调节.
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