Extracellular matrix stiffness is examined in a lab study as a potential physical trigger of cellular aging, inviting readers to see what that implies for tissue rejuvenation.
Key Takeaways
- Cells grown on softer hydrogels showed upregulation of longevity‑associated genes compared with stiffer substrates
- Stiffer hydrogels produced elongated cell morphologies and gene expression patterns characteristic of aging
- Modulating substrate stiffness reversed the aging‑linked phenotype and increased autophagic activity in cells