<i>Sesn-1</i> is required for lifespan extension during caloric deprivation in <i>C. elegans</i> through inhibition of mTORC1 and activation of autophagy.

ABSTRACT: Sestrins, evolutionarily conserved stress-responsive proteins, are increasingly recognized for their potential role in lifespan regulation. This study aimed to elucidate the influence of the sesn-1 gene on lifespan modulation during caloric deprivation (CD) in the model organism C. elegans. Our findings reveal that sesn-1 mediates lifespan extension under CD, primarily through the repression of mTORC1 kinase and activation of autophagy. Moreover, we identified an essential role for sesn-1 in enhancing stress resilience in nematodes, particularly in the context of nutrient sensing. Further investigations demonstrated sesn-1's interaction with the GATOR2 protein complex, its role in maintaining muscle integrity and a potential synergy between sesn-1

SUBMITTER: Zheltukhin AO 

PROVIDER: S-EPMC12339033 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature