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Updated: May 8, 2026
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The Production of Pluripotent Stem Cells from Mouse Amniotic Fluid Cells Using a Transposon System
Published on: February 28, 2017
Human amniotic fluid stem cell differentiation along smooth muscle lineage
Marco Ghionzoli1, Andrea Repele, Laura Sartiani
12UCL Institute of Child Health and Great Ormond St. Hospital for Children, 30 Guilford St., London WC1N 1EH, UK. p.decoppi@ucl.ac.uk.
Summary
Human amniotic fluid stem cells (hAFSCs) can be differentiated into functional smooth muscle cells (SMCs). This breakthrough offers a promising new source for smooth muscle tissue engineering applications.
Area of Science:
- Regenerative Medicine
- Stem Cell Biology
- Tissue Engineering
Background:
- Smooth muscle cell (SMC) isolation and expansion are crucial for functional tissue engineering.
- Identifying progenitor cells for visceral smooth muscle tissue remains challenging.
Purpose of the Study:
- To investigate the potential of human amniotic fluid stem cells (hAFSCs) as a source for generating functional SMCs.
- To characterize the differentiation process and functional properties of SMCs derived from hAFSCs.
Main Methods:
- Generation of clonal lines from c-kit(+) hAFSCs.
- Induction of differentiation towards smooth muscle lineage (SMhAFSCs) using PDGF-BB and TGF-β1 conditioned medium.
- Molecular, ultrastructural, metabolic, electrophysiological, and contractility analyses.
Main Results:
- SMhAFSCs exhibited significantly higher expression of SMC markers (α-SMA, desmin, calponin, smoothelin) compared to hAFSCs.
- Ultrastructural analysis revealed SMC-like features in SMhAFSCs, including intermediate filaments and dense bodies.
- Metabolic assays showed enhanced glucose oxidation and mitogenic response in SMhAFSCs.
- Electrophysiological recordings confirmed a smooth muscle cell-like fingerprint.
- Demonstrated single-cell and gel-based contractility of SMhAFSCs.
Conclusions:
- Human amniotic fluid stem cells can be successfully differentiated into functional smooth muscle cells under specific culture conditions.
- This study establishes hAFSCs as a viable and promising cell source for smooth muscle tissue engineering.
- The derived SMhAFSCs possess key functional characteristics of native SMCs, including contractility.
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