Live·Open questions in longevity research

Stem cell

Dll1-positive secretory progenitors

Secretory progenitor cells expressing Dll1 that can restore stem cell function

Hypotheses on this target 1

Dll1-positive secretory progenitorsReprogramming. Hypotheses on this target 11Transplantation. Hypotheses on this target 0Directed differentiation. Hypotheses on this target 0Proliferation. Hypotheses on this target 0Population balance. Hypotheses on this target 0
  • Reprogramming1
  • Transplantation
  • Directed differentiation
  • Proliferation
  • Population balance

Reprogramming1

  • Reserve cells may extend life by restoring intestinal crypts after renewal cells are lost

    Where this hypothesis actsInitially Lgr5-negative progenitors in intestinal crypts after loss of renewing cells

    What is proposedRecruit secretory progenitors to restore functional stem cell lineages

    With whatProtein or peptide as the agent

    HowLocal, short pulses of Wnt3a, with pulse termination included in the candidate intervention

    Possible resultPossible reduction in irreversible crypt loss, supporting intestinal function and lifespan extension

    2026-10-05