Identification of a role for the PI3K/AKT/mTOR signaling pathway in innate immune cells.

Identification of a role for the PI3K/AKT/mTOR signaling pathway in innate immune cells.
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鉴定 PI3K/AKT/mTOR 信号通路在先天免疫细胞中的作用

DOI:
10.1371/journal.pone.0094496
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发表时间:
2014
期刊:
影响因子:
3.7
通讯作者:
Li D
Li D
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Xie S;Chen M;Yan B;He X;Chen X;Li D

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先天免疫系统是宿主抵抗感染的第一道防线,涉及几种不同的细胞类型。在这里,我们研究了磷脂酰肌醇3激酶(PI 3 K)信号通路在先天性免疫细胞中的作用。通过用药理学抑制剂阻断这一途径,我们发现单核细胞和巨噬细胞中促炎细胞因子的产生被大大抑制。进一步的研究表明,这种抑制作用主要与哺乳动物雷帕霉素靶蛋白(mTOR)/p70 S6 K信号通路有关。此外,我们发现PI 3 K通路参与巨噬细胞运动和新生血管形成。我们的数据提供了一个理论基础,即抑制PI 3 K信号通路可能是一种有吸引力的方法来管理炎症性疾病。
The innate immune system is the first line of host defense against infection and involves several different cell types. Here we investigated the role of the phosphatidylinositol 3 kinase (PI3K) signaling pathway in innate immune cells. By blocking this pathway with pharmacological inhibitors, we found that the production of proinflammatory cytokines was drastically suppressed in monocytes and macrophages. Further study revealed that the suppression was mainly related to the mammalian target of rapamycin (mTOR)/p70S6K signaling. In addition, we found that the PI3K pathway was involved in macrophage motility and neovascularization. Our data provide a rationale that inhibition of the PI3K signaling pathway could be an attractive approach for the management of inflammatory disorders.
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