2020-10-09
An ionic control of metabolic-epigenetic reprogramming links inflammation to membrane potential-mediated nutrient acquisition
2020-10-09 • Di Wang, Weiwei Yu, Zhen Wang, Xiafei Yu, Zhexu Chi, Kailian Zhang, Sheng Chen, Ting Xu, Danlu Jiang, Xingchen Guo, Mobai Li, Jian Zhang, Hui Fang,...
Abstract Metabolic and epigenetic reprogramming play pivotal roles in driving inflammation, but the precise regulatory mechanisms remain minimally understood. Here we show an ionic control mediated by macrophage Kir2.1, an inwardly-rectifying K+ channel, promting lipopolysaccharide (LPS)-induced inflammation. Kir2.1 blockade by the selective inhibitor ML133 or its specific deletion in macrophages suppressed the production of LPS-induced inflammatory factors, such as interleukin-1β, and protected mice from LPS-indu…