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首页> 外文期刊>Journal of Neuroimmunology: Official Bulletin of the Research Committee on Neuroimmunology of the World Federation of Neurology >Changes with aging in the modulation by neuropeptide Y of murine peritoneal macrophage functions.
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Changes with aging in the modulation by neuropeptide Y of murine peritoneal macrophage functions.

机译:鼠腹膜巨噬细胞功能的神经肽Y调节中的老化变化。

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摘要

Some age-related changes in immune function may be due, at least in part, to a disturbance in the communication between the nervous and immune systems. In the present work, the effects in vitro of neuropeptide Y (NPY) (10(-13) to 10(-7) M) on different peritoneal macrophage functions (adherence to substrate, chemotaxis, phagocytosis, superoxide anion production, and the release of TNFalpha and IL-1beta) have been studied on cells from young (12+/-2 weeks), adult (24+/-2 weeks), mature (50+/-2 weeks) and old (72+/-2 weeks) BALB/c mice. The specificity of these actions was confirmed using two C-terminal fragments of NPY, and the intracellular messengers (protein kinase C and cAMP) involved in the action of the neuropeptide were also analyzed. The results show that the functions studied change with aging and that the effects of NPY on each function, which are carried out through specific receptors, as well as on intracellular pathway, differ depending on age, maintaining the immune functions at physiologically adequate levels in old animals.
机译:免疫功能的某些与年龄相关的变化可能至少部分是由于神经系统与免疫系统之间的通讯障碍。在目前的工作中,神经肽Y(NPY)(10(-13)至10(-7)M)在体外对不同腹膜巨噬细胞功能(对底物的粘附,趋化性,吞噬作用,超氧阴离子产生和释放)的影响已针对年轻(12 +/- 2周),成人(24 +/- 2周),成熟(50 +/- 2周)和老龄(72 +/- 2)的细胞研究了TNFalpha和IL-1beta)周)BALB / c小鼠。使用两个NPY的C端片段确认了这些作用的特异性,并且还分析了参与神经肽作用的细胞内信使(蛋白激酶C和cAMP)。结果表明,所研究的功能随着年龄的增长而变化,并且NPY对每种功能的影响(通过特定的受体以及通过细胞内途径进行)随年龄的不同而不同,从而使免疫功能保持在老年人生理上适当的水平动物。

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