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Related Experiment Video

Updated: May 6, 2026

Intramuscular Transplantation of Human Pluripotent Stem Cell-derived Pancreatic Endocrine Cells in Mice
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Amniotic fluid stem cells prevent β-cell injury.

Valentina Villani1, Anna Milanesi2, Sargis Sedrakyan1

  • 1Department of Urology, Children's Hospital Los Angeles, University of Southern California, Los Angeles, California.

Cytotherapy
|November 12, 2013
PubMed
Summary
This summary is machine-generated.

Amniotic fluid stem cells (AFSC) show therapeutic potential for type 1 diabetes by protecting and regenerating insulin-producing beta cells. Early intervention with AFSC transplantation before severe hyperglycemia is crucial for optimal benefits.

Keywords:
amniotic fluidpancreasregenerationstem cellstype 1 diabetes mellitusβ-cell

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Area of Science:

  • Stem cell biology
  • Endocrinology
  • Regenerative medicine

Background:

  • Amniotic fluid stem cells (AFSC) are known for tissue protection and regeneration.
  • Previous studies demonstrated AFSC efficacy in kidney and lung injury models.
  • The role of AFSC in diabetes, specifically beta-cell function, requires further investigation.

Purpose of the Study:

  • To investigate the therapeutic potential of AFSC in a mouse model of type 1 diabetes.
  • To determine if AFSC can modulate beta-cell injury and restore beta-cell function.
  • To elucidate the mechanisms underlying AFSC-mediated beta-cell protection and regeneration.

Main Methods:

  • A chemically induced mouse model of type 1 diabetes was established using streptozotocin.
  • AFSC were administered via intracardial injection into diabetic mice.
  • Morphological, physiological, and gene expression profiles related to the insulin pathway were analyzed post-transplantation.

Main Results:

  • AFSC injection led to protection against beta-cell damage and enhanced beta-cell regeneration in a subset of mice.
  • Improved glucose and insulin levels, increased islet mass, and preserved islet structure were observed.
  • Beta-cell preservation/regeneration correlated with the activation of the insulin receptor/Pi3K/Akt signaling pathway and VEGF-A expression.

Conclusions:

  • AFSC demonstrate a therapeutic role in preserving and promoting endogenous beta-cell function and proliferation.
  • Early intervention with AFSC transplantation, prior to severe hyperglycemia, is critical for efficacy.
  • These findings highlight the potential of non-genetically engineered AFSC for type 1 diabetes treatment and offer insights into their mechanism of action.