MTOR signaling controls protein aggregation during heat stress and cellular aging in a translation- and Hsf1-independent manner.

ABSTRACT: The mechanistic target of rapamycin (mTOR) signaling pathway appears central to the aging process as genetic or pharmacological inhibition of mTOR extends lifespan in most eukaryotes tested. While the regulation of protein synthesis by mTOR has been studied in great detail, its impact on protein misfolding and aggregation during stress and aging is less explored. In this study, we identified the mTOR signaling pathway and the linked Seh1-associated complex as central nodes of protein aggregation during heat stress and cellular aging, using Saccharomyces cerevisiae as a model organism. Based on a synthetic genetic array screen, we found that reduced mTOR activity, achieved through deletion of TCO89, an mTORC1 subunit, almost completely prevents protein aggregation during heat stress and agi

SUBMITTER: Fischbach A 

PROVIDER: S-EPMC11849620 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature