Summarized by Masters of Longevity from Lifespan.io.
Reports identification of PTCHD4 as a previously unstudied protein that promotes cellular senescence and worsens age‑related fibrosis in mice.
Key Takeaways
- PTCHD4 expression increases with genotoxic stress and in aged or diseased human and mouse tissues.
- Cells lacking PTCHD4 resist senescence longer, while PTCHD4 overexpression accelerates senescence markers.
- PTCHD4 knockout mice live longer, show delayed whitening of fur, and have reduced bleomycin‑induced lung fibrosis.
