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Interleukin-1-induced activation of the small GTPase Rac1 depends on receptor internalization and regulates gene expression

机译:白介素1诱导的小GTPase Rac1激活取决于受体内在化并调节基因表达

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摘要

Interleukin 1 (IL-1) triggers the internalization of its cognate receptor from the plasma membrane.We recently demonstrated that this internalization is of critical importance for the IL-1-induced gene expression. In this study we report that the IL-1-induced activation of the small GTPase Rac1 requires receptor endocytosis. We further show that the depletion of Rac1 reduces the IL-1-dependent gene expression without affecting signaling events that are initiated at the plasmamembrane. Collectively, we provide evidence for a key role of Rac1 in a pathway that regulates IL-1-induced gene expression depending on receptor endocytosis.
机译:白介素1(IL-1)触发其质膜受体的内在化。我们最近证明,这种内在化对于IL-1诱导的基因表达至关重要。在这项研究中我们报告说,IL-1诱导的小GTPase Rac1的激活需要受体胞吞作用。我们进一步表明,Rac1的消耗减少了IL-1依赖性基因的表达,而不会影响在质膜上启动的信号传递事件。集体,我们提供证据,Rac1在依赖受体内吞作用调节IL-1诱导的基因表达的途径中的关键作用。

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