Boosting a gene-regulating enzyme extended lifespan in worms
Worm experiments showed that increasing the enzyme preserved health during aging and strengthened stress responses.
Our read
Interventions- Studied:
- Preprint: experiments in Caenorhabditis elegans worms
- What changed:
- Worms lived longer when researchers increased the PCAF-1 enzyme
- The catch:
- The amount of PCAF-1 increase needed for lifespan extension is not reported
Editor of record: Boris Djordjevic · AgingResearch.News
Caenorhabditis elegans worms lived longer and maintained health during aging when researchers increased PCAF-1, an enzyme that helps control gene activity, in experiments. Increasing the enzyme changed the activity of stress-responsive genes and strengthened responses to stress. It also reduced the age-related decline in protein breakdown by the cell’s disposal machinery.
In worm models of human neurodegenerative diseases, PCAF-1 limited protein clumping while preserving movement and survival. PCAF-1 also activated DAF-16, a protein that controls gene activity. DAF-16 was required for the lifespan extension and for protection against clumping of polyglutamine proteins, which contain repeated units of the amino acid glutamine.
Why it matters
Cells become less able to respond to stress and maintain working proteins as they age. The authors propose this enzyme family as a potential adjustable regulator of protein maintenance and healthy lifespan.
Caveats
Worm experiments cannot show whether increasing this enzyme would preserve health or extend life in people. The work is a preprint and has not been peer-reviewed.
The paper
Brown University
bioRxiv, Nov 12, 2026, Open access, Preprint, not yet peer-reviewed
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