首页> 外文期刊>Journal of Neuroimmunology: Official Bulletin of the Research Committee on Neuroimmunology of the World Federation of Neurology >Substance P activates NF-kappaB independent of elevations in intracellular calcium in murine macrophages and dendritic cells.
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Substance P activates NF-kappaB independent of elevations in intracellular calcium in murine macrophages and dendritic cells.

机译:P物质激活NF-κB,而与鼠巨噬细胞和树突状细胞中细胞内钙的升高无关。

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摘要

Professional antigen presenting cells, such as macrophages, can be activated by intracellular calcium-dependent as well as calcium-independent mechanisms, depending upon the stimulus used. In this report, we addressed the mechanism of substance P-induced intracellular signalling in murine macrophages and dendritic cells. While no increases in intracellular calcium concentration were detected in macrophages or dendritic cells using sensitive fluorimetric techniques, substance P did induce rapid enhanced activation of NF-kappaB, a transcriptional activator known to regulate pro-inflammatory cytokines. These data provide an important mechanism by which substance P may augment the production of pro-inflammatory molecules.
机译:取决于所使用的刺激,专业的抗原呈递细胞,例如巨噬细胞,可以通过细胞内钙依赖性以及钙依赖性机制被激活。在本报告中,我们探讨了在小鼠巨噬细胞和树突状细胞中P物质诱导的细胞内信号传导的机制。虽然使用敏感的荧光技术未检测到巨噬细胞或树突状细胞中细胞内钙浓度的增加,但P物质确实诱导了NF-κB的快速增强活化,NF-κB是一种已知的调节促炎性细胞因子的转录激活因子。这些数据提供了重要的机制,物质P可以借此增加促炎分子的产生。

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