Live·Open questions in longevity research

Specialised cell of an organ

Epithelial cells

Cells that form epithelial tissue

Hypotheses on this target 3

Epithelial cellsFunction restoration. Hypotheses on this target 0Reprogramming. Hypotheses on this target 0Transplantation. Hypotheses on this target 0Elimination. Hypotheses on this target 22Proliferation. Hypotheses on this target 0
  • Function restoration
  • Reprogramming
  • Transplantation
  • Elimination2
  • Proliferation

Elimination2

  • Loss of mucosal barriers may let microbial toxins create mutations that drive invasion

    Where this hypothesis actsResident lineages in older-donor intestinal epithelial mosaics undergoing repeated repair

    What is proposedRemove a limited area of resident cells to test their protective barrier contribution

    With whatPhysical or surgical intervention

    HowCompare controlled small-area removal with retention and viability-preserving suppression, matching initial injury and testing functional replacement

    Possible resultPossible increased toxin exposure and new invasive descendants if removal disrupts functional protection

    2026-10-10

  • Dead resident cells may feed invasive lineages during epithelial repair

    Where this hypothesis actsResident populations in aging human epithelial mosaics containing a pre-existing invasive lineage

    What is proposedCompare resident killing with retained debris against physical extraction and retention

    With whatPhysical or surgical intervention

    HowCompare retention, viability-preserving suppression, killing with retained debris and extraction; prelabel resident biomass and trace its release and use

    Possible resultPossible extra invader survival or production when resident death supplies accessible, metabolically useful material

    2026-10-10