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首页> 外文期刊>Cytokine >Human first trimester forebrain cells express genes for inflammatory and anti-inflammatory cytokines.
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Human first trimester forebrain cells express genes for inflammatory and anti-inflammatory cytokines.

机译:人类的前三个月前脑细胞表达炎症和抗炎细胞因子的基因。

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Using in situ hybridization and immunohistochemistry the induction of potential cytokines [interleukin 1beta (IL-1beta), IL-4, IL-6, IL-10, tumour necrosis factor alpha (TNF-alpha), interferon gamma (IFN-gamma) and transforming growth factor beta (TGF-beta)] in human embryonic forebrain cells at weeks 5, 7 and 10 of gestation was studied. The aims were to investigate the capacity of these cells to express cytokines, to determine the kinetics of induction and to display the type of cytokine expressing cells in the developing brain. Constitutive cytokine gene expression was recorded from week 5, augmented by about 50% at week 7 and by more than 100% at week 19 (except TGF-beta at week 10). Among other cytokines, IL-1beta exhibited the highest expression at week 10. TGF-beta showed maximum expression at week 7 and declined at week 10. Combined techniques revealed that glial cells are a major source of cytokines. The study show and present for the first time the kinetics of spontaneous cytokine expression in human embryonic forebrain cells. The increased mRNA expressions with age suggest an important role for cytokines in promotion of brain development. The capacity of inducing these cytokines may, however, be implicated in the immunopathogenesis of several brain diseases. The distinctive TGF-beta profile suggests a further role for TGF-beta on modulation of cytokine responses during development. Copyright 1999 Academic Press.
机译:使用原位杂交和免疫组化技术诱导潜在的细胞因子[白介素1beta(IL-1beta),IL-4,IL-6,IL-10,肿瘤坏死因子α(TNF-alpha),干扰素γ(IFN-γ)和在妊娠的第5、7和10周,研究了人类胚胎前脑细胞中的“转化生长因子β(TGF-β)”。目的是研究这些细胞表达细胞因子的能力,确定诱导的动力学,并显示发育中的大脑中表达细胞因子的细胞的类型。从第5周开始记录组成型细胞因子基因表达,在第7周增加约50%,在第19周增加超过100%(第10周的TGF-beta除外)。在其他细胞因子中,IL-1beta在第10周表现出最高的表达。TGF-beta在第7周表现出最高的表达,而在第10周下降。联合技术表明,神经胶质细胞是细胞因子的主要来源。该研究首次展示了人类胚胎前脑细胞中自发细胞因子表达的动力学。随着年龄的增长,mRNA表达增加表明细胞因子在促进大脑发育中起重要作用。但是,诱导这些细胞因子的能力可能与几种脑部疾病的免疫发病机制有关。独特的TGF-β概况表明,TGF-β在发育过程中对细胞因子应答的调节具有进一步的作用。版权所有1999,学术出版社。

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