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首页> 外文期刊>Cytokine >TNF-inducible expression of lymphotoxin-β in hepatic cells: An essential role for NF-κB and Ets1 transcription factors
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TNF-inducible expression of lymphotoxin-β in hepatic cells: An essential role for NF-κB and Ets1 transcription factors

机译:TNF诱导肝细胞淋巴毒素-β的表达:NF-κB和Ets1转录因子的重要作用

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摘要

As TNF is one of the earliest signals that can be detected in the leukocyte-derived inflammatory cascade which drives subsequent cytokine production, we are interested in determining whether TNF is one of the initiating factors controlling liver remodeling and regeneration following chronic liver damage. One of the early responses is the expression of lymphotoxin-β by hepatic progenitor oval cells. The aim of this study was to determine whether hepatic expression of LT-β was controlled by TNF and to understand the basis of this regulation. We previously showed that LT-β expression is transcriptionally controlled via the TNF-induced, inflammatory NF-κB pathway in T lymphocytes. Here we show that TNF is able to upregulate LT-β expression in hepatic cells at the transcriptional level by the binding of NF-κB p50/. p65 heterodimers and Ets1 to their respective sites in the LT-β promoter.
机译:由于TNF是最早可在白细胞衍生的炎症级联反应中检测到的信号之一,可驱动随后的细胞因子生成,因此我们有兴趣确定TNF是否是控制慢性肝损伤后肝脏重塑和再生的起始因子之一。早期反应之一是肝祖卵细胞表达淋巴毒素-β。这项研究的目的是确定LT-β的肝表达是否受TNF的控制,并了解这种调节的基础。我们先前显示,LT-β表达是通过TNF诱导的T淋巴细胞炎症性NF-κB途径转录控制的。在这里,我们证明了TNF能够通过结合NF-κBp50 /在转录水平上调肝细胞中LT-β的表达。 p65异二聚体和Ets1分别位于LT-β启动子中。

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