SUMO peptidase ULP-4 regulates mitochondrial UPR-mediated innate immunity and lifespan extension
SUMO peptidase ULP-4 regulates mitochondrial UPR-mediated innate immunity and lifespan extension
复制标题
SUMO 肽酶 ULP-4 调节线粒体 UPR 介导的先天免疫和寿命延长
DOI:
10.7554/elife.41792
复制
发表时间:
2019-01-15
期刊:
影响因子:
7.7
通讯作者:
Liu, Ying
中科院分区:
文献类型:
--
作者:
Gao, Kaiyu;Li, Yi;Liu, Ying
Animals respond to mitochondrial stress with the induction of mitochondrial unfolded protein response (UPRmt). A cascade of events occur upon UPRmt activation, ultimately triggering a transcriptional response governed by two transcription factors: DVE-1 and ATFS-1. Here we identify SUMO-specific peptidase ULP-4 as a positive regulator of C. elegans UPRmt to control SUMOylation status of DVE-1 and ATFS-1. SUMOylation affects these two axes in the transcriptional program of UPRmt with distinct mechanisms: change of DVE-1 subcellular localization vs. change of ATFS-1 stability and activity. Our findings reveal a post-translational modification that promotes immune response and lifespan extension during mitochondrial stress.