Yanhao Chen, Lanlan Chen, Xiaoshan Wu, Yongxu Zhao, Yuchen Wang, Dacheng Jiang, Xiaojian Liu, Tingting Zhou, Shuang Li, Yuda Wei, Yan Liu, Cheng Hu, Ben Zhou, Jun Qin, Hao Ying, Qiurong Ding
The early phase lipid accumulation is essential for liver regeneration. However, whether this acute lipid accumulation can serve as signals to direct liver regeneration rather than simply providing building blocks for cell proliferation remains unclear. Through in vivo CRISPR screening, we identify MIER1 (mesoderm induction early response 1) as a key epigenetic regulator that bridges the acute lipid accumulation and cell cycle gene expression during liver regeneration in male animals. Physiologically, liver acute lipid accumulation induces the phosphorylation of EIF2S1(eukaryotic translation initiation factor 2), which consequently attenuated Mier1 translation...
March 18, 2023: Nature Communications