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Isolation and Identification of Mesenchymal Stem Cells Derived from Adipose Tissue of Sprague Dawley Rats
Published on: April 7, 2023
Epigenetic programming of mesenchymal stem cells from human adipose tissue
Andrew C Boquest1, Agate Noer, Philippe Collas
1Institute of Basic Medical Sciences, Department of Biochemistry, Faculty of Medicine, University of Oslo, Blindern, 0317 Oslo, Norway.
Stem Cell Reviews
|September 13, 2007
Summary
Adipose-derived stem cells (ASCs) show restricted differentiation potential due to epigenetic programming. DNA methylation patterns reveal ASCs are preprogrammed for fat cell differentiation, limiting other mesodermal lineages.
Area of Science:
- Stem cell biology
- Epigenetics
- Regenerative medicine
Background:
- Mesenchymal stem cells (MSCs) from adult tissues are promising for regenerative medicine.
- Adipose-derived stem cells (ASCs) are an accessible source of MSCs.
- ASCs primarily differentiate into mesodermal lineages but show restricted non-adipogenic potential.
Purpose of the Study:
- To investigate the epigenetic basis for the restricted differentiation potential of human ASCs.
- To analyze DNA methylation profiles in ASCs across different states (isolated, cultured, differentiated).
Main Methods:
- Analysis of DNA methylation profiles at gene promoters in ASCs.
- Comparison of methylation patterns in adipogenic and non-adipogenic lineages.
- Assessment of methylation changes during in vitro differentiation.
Main Results:
- Human ASCs exhibit mosaic hypomethylation at adipogenic gene promoters.
- Non-adipogenic lineage-specific promoters are hypermethylated in ASCs.
- In vitro differentiation maintains the methylation profiles of undifferentiated ASCs.
Conclusions:
- ASCs appear epigenetically preprogrammed for adipogenesis.
- DNA methylation patterns explain the restricted differentiation capacity of ASCs.
- Reprogramming efforts are underway to enhance ASC differentiation potential.
