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Found: a protein that drives ageing without unleashing inflammation

Nature ·

The Brief

  • In aged mice engineered to lack granzyme K, heart and liver function improved.
  • These mice also showed less kidney damage than aged mice with the protein.
  • The source describes granzyme K as a protein that drives ageing without unleashing inflammation.

Why it matters

The findings point to granzyme K as a possible target for interventions aimed at age-related organ decline, though the evidence so far comes from mice.

Who’s affected

  • ageing and geroscience researchers
  • biomedical researchers studying heart, liver and kidney disease

Nature, Published online: 12 November 2026; doi:10.1038/d41586-026-03638-3 Aged mice engineered to lack granzyme K have improved heart and liver function and less kidney damage.

Timeline

  1. Study published online in Nature

  2. nature.com

    Found: a protein that drives ageing without unleashing inflammation

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    Found: a protein that drives ageing without unleashing inflammation – The Morning Science