Relationship between inflammation and novel NF-κB activation pathway which is regulated by ubiquitin system

点击翻译按钮获取中文摘要

We identified LUBAC ubiquitin ligase, which composed of SHARPIN, HOIL-1L, and HOIP, forms a novel type of linear polyubiquitin chain. LUBAC regulates NF-κB system, a critical transcription factor for inflammation and immune regulation. Furthermore, we revealed that cpdm mice, which lack Sharpen by a spontaneous mutation, induce dermatitis by the reduction of LUBAC and NF-κB activity. These results indicate that linear polyubiquitination is an indispensable post-transcription modification for NF-κB activation.