首页> 外文期刊>Neurochemistry International: The International Journal for the Rapid Publication of Critical Reviews, Preliminary and Original Research Communications in Neurochemistry >Inhibitory effect of interferon-gamma on LPS-induced interleukin 1 beta production by isolated adult rat brain microglia.
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Inhibitory effect of interferon-gamma on LPS-induced interleukin 1 beta production by isolated adult rat brain microglia.

机译:干扰素-γ对孤立的成年大鼠脑小胶质细胞对LPS诱导的白介素1β产生的抑制作用。

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The effect of interferon-gamma (IFN-gamma) on lipopolysaccharide (LPS)-induced cytokine production has been examined in adult rat brain microglia. Following treatment of isolated cells in vitro with LPS, interleukin-1 (IL-1) and interleukin-6 (IL-6) levels in culture supernatants, determined by bioassay, were increased in a dose-dependent manner. IL-6 was particularly sensitive to LPS-stimulation. Using in situ hybridisation techniques, the induction by LPS of IL-1 and IL-6 mRNA in cultured microglia has been demonstrated. When IFN-gamma was included, LPS-induced production of both IL-1 and IL-6 by microglia was significantly reduced and this effect was particularly marked in the case of IL-1. Comparisons with peritoneal macrophages demonstrate that whilst both cell types produce IL-1 and IL-6 in response to LPS, IFN-gamma had no significant effect on this response in peritoneal macrophages. This suggests potential control mechanisms which may be effective in down-regulating cytokine production by microglia in vivo.
机译:已在成年大鼠脑小胶质细胞中检查了干扰素-γ(IFN-γ)对脂多糖(LPS)诱导的细胞因子产生的影响。用LPS在体外处理分离的细胞后,通过生物测定确定的培养上清液中的白介素-1(IL-1)和白介素-6(IL-6)水平以剂量依赖性方式增加。 IL-6对LPS刺激特别敏感。使用原位杂交技术,已证明通过LPS在培养的小胶质细胞中诱导IL-1和IL-6 mRNA。当包含IFN-γ时,LPS诱导的小胶质细胞产生的IL-1和IL-6均显着降低,这种作用在IL-1的情况下尤为明显。与腹膜巨噬细胞的比较表明,尽管两种细胞类型均对LPS产生IL-1和IL-6,但IFN-γ对腹膜巨噬细胞的这种反应没有显着影响。这表明潜在的控制机制可能有效地在体内下调小胶质细胞因子的产生。

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