Stress Response Trade-Off: Less ATF4 Activity May Extend Lifespan in Flies
Based on: Suppression rather than activation of the integrated stress response (GCN2-ATF4) pathway extends lifespan in the fly.
Scientists used to think turning on the body's stress response made organisms live longer. But in fruit flies, the opposite was true. When researchers dialed down a key stress pathway called GCN2-ATF4, flies lived longer. Cranking it up shortened their lives. This complicates the popular idea that all forms of cellular stress activation are good for aging.
Key Insight
This study suggests stress response pathways may help or harm lifespan depending on how active they are.
Original Paper
Götz MS, Hayman DJ, Adams G, Obata F, Simons MJP
Disclaimer: Research summaries are provided for informational purposes only and do not constitute medical advice. Always consult a qualified healthcare professional before making changes to your health routine.