文章基本信息

标题：MafK positively regulates NF-κB activity by enhancing CBP-mediated p65 acetylation
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作者：Yu-Jin Hwang ; Eun-Woo Lee ; Jaewhan Song 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2013
卷号：3
DOI：10.1038/srep03242
出版社：Springer Nature
摘要：Reactive oxygen species, produced by oxidative stress, initiate and promote many metabolic diseases through activation/suppression of redox-sensitive transcription factors. NF-κB and Nrf2 are important regulators of oxidation resistance and contribute to the pathogenesis of many diseases. We identified MafK, a novel transcriptional regulator that modulates NF-κB activity. MafK knockdown reduced NF-κB activation, whereas MafK overexpression enhanced NF-κB function. MafK mediated p65 acetylation by CBP upon LPS stimulation, thereby facilitating recruitment of p65 to NF-κB promoters such as IL-8 and TNFα. Consistent with these results, MafK-depleted mice showed prolonged survival with a reduced hepatic inflammatory response after LPS and D-GalN injection. Thus, our findings reveal a novel mechanism by which MafK controls NF-κB activity via CBP-mediated p65 acetylation.