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Related Experiment Video

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The Production of Pluripotent Stem Cells from Mouse Amniotic Fluid Cells Using a Transposon System
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First steps to define murine amniotic fluid stem cell microenvironment.

E Bertin1, M Piccoli1, C Franzin1

  • 1Stem Cells and Regenerative Medicine Lab, Fondazione Istituto di Ricerca Pediatrica Città della Speranza, Padova, Italy.

Scientific Reports
|November 16, 2016
PubMed
Summary
This summary is machine-generated.

Researchers explored the amniotic fluid stem (AFS) cell microenvironment. They found specific factors in the amniotic fluid and amnion maintain stem cell stemness, crucial for regenerative medicine.

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Area of Science:

  • Stem Cell Biology
  • Developmental Biology
  • Tissue Engineering

Background:

  • Stem cell niche is the microenvironment regulating stem cell behavior.
  • Amniotic fluid stem (AFS) cells, identified as cKit+ cells, exist in human and murine amniotic fluid.
  • Understanding the AFS cell niche is vital for harnessing their therapeutic potential.

Purpose of the Study:

  • To characterize murine cKit+ cells in amniotic fluid and amnion.
  • To analyze the microenvironment of amniotic fluid stem cells.
  • To investigate the stemness-maintaining properties of the AFS cell niche.

Main Methods:

  • Characterization of murine cKit+ cells from amniotic fluid and amnion.
  • Inoculation of YFP+ embryonic stem cells (ESCs) into murine amniotic fluid at E13.5.
  • Analysis of pluripotency markers, cytokine profiles, and oxygen concentration in the AFS microenvironment.

Main Results:

  • Murine cKit+ cells were identified in both amniotic fluid and amnion.
  • Transplanted YFP+ ESCs maintained pluripotency markers.
  • ESCs attached to the amnion retained stemness more effectively than those in the amniotic fluid.
  • The AFS microenvironment contains key stem cell niche regulators, including specific cytokines and oxygen levels.

Conclusions:

  • The amniotic fluid and amnion provide a unique microenvironment supporting stemness.
  • This niche maintains the stemness of both resident AFS cells and exogenous stem cells.
  • These findings offer novel insights into stem cell regulation and potential therapeutic applications.