Abstract
The cellular integrated stress response (ISR) is a central signaling pathway that tunes translation initiation in response to a wide range of cellular insults to promote cell survival. The critical node of this regulation involves the phosphorylation of the eukaryotic translation initiation factor 2α (eIF2α) by stress kinases. In this issue of EMBO reports, Wu et al (2023) report FAM69C as a novel eIF2α kinase that promotes ISR activation and stress granule (SG) assembly in microglia in response to oxidative stress. This work proposes a protective role for FAM69C and SGs in limiting damaging inflammatory responses commonly associated with neurodegenerative diseases.
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