Live·Open questions in longevity research
All targets

Fibroblast or stromal cell

Fibroblasts

Cells that can contribute mechanically useful matrix, with differing levels of contribution among populations

Hypotheses on this target 1

FibroblastsSenomorphic suppression. Hypotheses on this target 0Reprogramming. Hypotheses on this target 0Transplantation. Hypotheses on this target 0Elimination. Hypotheses on this target 0Population balance. Hypotheses on this target 11

Population balance1

  • Blocking a repair signal selects against matrix-building cells and weakens skin

    Where this hypothesis actsSkin repair under continued FAK blockade and cyclic shear, especially with impaired hypodermal support

    What is proposedMaintain a sufficient fraction of matrix-contributing fibroblasts through replacement

    With whatCell therapy

    HowComposition-controlled replacement using producer-enriched and low-producer fibroblast populations

    Possible resultPossible prevention of delayed mechanical deterioration despite continued FAK blockade

    2026-09-21