Cutting edge: NF-kappaB activating pattern recognition and cytokine receptors license NLRP3 inflammasome activation by regulating NLRP3 expression.
Cutting edge: NF-kappaB activating pattern recognition and cytokine receptors license NLRP3 inflammasome activation by regulating NLRP3 expression.
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DOI:
10.4049/jimmunol.0901363
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发表时间:
2009-07-15
期刊:
影响因子:
--
通讯作者:
Latz E
中科院分区:
文献类型:
--
作者:
Bauernfeind FG;Horvath G;Stutz A;Alnemri ES;MacDonald K;Speert D;Fernandes-Alnemri T;Wu J;Monks BG;Fitzgerald KA;Hornung V;Latz E
The interleukin (IL)-1 family cytokines are regulated on transcriptional and posttranscriptional levels. Pattern recognition and cytokine receptors control pro-IL-1β transcription while inflammasomes regulate the proteolytic processing of pro-IL-1β. The NLRP3 inflammasome, however, assembles in response to extracellular ATP, poreforming toxins or crystals only in the presence of proinflammatory stimuli. How activation of gene transcription by signaling receptors enables the NLRP3 activation remains elusive and controversial. Here, we show that cell priming through multiple signaling receptors induce NLRP3 expression, which we identified to be a critical checkpoint for NLRP3 activation. Signals provided by NF-κB activators are necessary but not sufficient for NLRP3 activation and a second stimulus, such as ATP or crystal-induced damage is required for NLRP3 activation.
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