Go green: the anti-inflammatory effects of biliverdin reductase.

Go green: the anti-inflammatory effects of biliverdin reductase.
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DOI:
10.3389/fphar.2012.00047
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发表时间:
2012
影响因子:
5.6
通讯作者:
Otterbein LE
Otterbein LE
中科院分区:
医学2区
文献类型:
--
作者:
Wegiel B;Otterbein LE

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胆绿素(BV)已成为一种重要的细胞保护和抗炎分子。BV向胆红素(BR)的转化是由胆红素还原酶(BVR)催化的,是BVR下游信号传导和核定位所必需的。我们和其他人最近的数据表明,BVR是由急性侮辱和损伤引起的先天免疫反应的关键调节因子,而且,缺乏BVR会导致促炎表型增强。在巨噬细胞中,BVR受底物BV的调控,BVR通过直接结合TLR4启动子激活PI3K-Akt-IL-10轴,抑制TLR4的表达。在这篇综述中,我们将总结BVR和胆汁色素在炎症中的作用及其作为酶、受体和转录调节剂的活性的最新发现。
Biliverdin (BV) has emerged as a cytoprotective and important anti-inflammatory molecule. Conversion of BV to bilirubin (BR) is catalyzed by biliverdin reductase (BVR) and is required for the downstream signaling and nuclear localization of BVR. Recent data by others and us make clear that BVR is a critical regulator of innate immune responses resulting from acute insult and injury and moreover, that a lack of BVR results in an enhanced proinflammatory phenotype. In macrophages, BVR is regulated by its substrate BV which leads to activation of the PI3K–Akt-IL-10 axis and inhibition of TLR4 expression via direct binding of BVR to the TLR4 promoter. In this review, we will summarize recent findings on the role of BVR and the bile pigments in inflammation in context with its activity as an enzyme, receptor, and transcriptional regulator.
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