Mice lacking an inflammation protein had a longer median lifespan
An animal experiment found longer survival and marked resistance to age-related liver decline in mice genetically lacking the protein.
Limit: Lifespan effects of STING-inhibiting drugs were not measured
In an animal experiment in mice, researchers genetically deleted the gene for STING, a protein involved in a pathway that drives chronic inflammation. They examined how its absence affected longevity and age-related liver decline. Short-term inhibition of STING can reduce inflammation in the nervous system and tissue damage, but its long-term effects on longevity remained unknown.
Mice lacking STING had a longer median lifespan—the age by which half the animals had died. This survival benefit came with marked resistance to age-related liver decline. The researchers described STING as a promising target for extending healthy lifespan.
Why it matters
A pathway that drives chronic inflammation may offer a target for efforts to extend healthy lifespan, the researchers suggested.
Caveats
Genetic deletion does not show whether a drug that inhibits STING would have the same effects. The findings were in mice, and the preprint has not been peer-reviewed.
The paper
STING deficiency extends median lifespan and mitigates age-related liver pathology in mice
University of Rochester Medical Center
bioRxiv, Oct 19, 2026, Open access, Preprint, not peer-reviewed
