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Ontological differences in first compared to third trimester human fetal placental chorionic stem cells.
Gemma N Jones1, Dafni Moschidou, Tamara-Isabel Puga-Iglesias
1Institute of Reproductive and Developmental Biology, Imperial College London, London, United Kingdom.
Plos One
|September 11, 2012
Summary
Early fetal chorionic stem cells (e-CSC) show superior stemness and tissue repair capabilities compared to late gestation cells (l-CSC). These findings highlight the translational advantage of e-CSC for regenerative medicine applications.
Area of Science:
- Stem cell biology
- Developmental biology
- Regenerative medicine
Background:
- Mesenchymal stromal/stem cells (MSC) from fetal tissues are valuable for therapies but ethically restricted.
- The placenta offers a readily accessible source of stem cells throughout pregnancy.
- Early gestational stem cells often exhibit superior characteristics compared to later-stage or adult counterparts.
Purpose of the Study:
- To investigate the physiological superiority of early fetal chorionic stem cells (e-CSC) over late gestation fetal chorionic stem cells (l-CSC).
- To compare the stemness characteristics and in vivo tissue repair capabilities of e-CSC and l-CSC.
Main Methods:
- Phenotypic and gene expression analysis of e-CSC and l-CSC.
- Assessment of differentiation potential into osteogenic, adipogenic, and neurogenic lineages.
- In vivo transplantation studies in osteogenesis imperfecta mice and skin wound models.
Main Results:
- Both e-CSC and l-CSC exhibited multipotency and expressed key stem cell markers.
- e-CSC demonstrated characteristics of earlier stemness, including smaller size, faster kinetics, unique OCT4A variant 1 expression, and higher expression of NANOG, SOX2, c-MYC, and KLF4.
- e-CSC, unlike l-CSC, formed embryoid bodies representing three germ layers and showed enhanced bone repair and accelerated skin wound healing in vivo.
Conclusions:
- Early fetal chorionic stem cells possess more primitive stemness characteristics than late gestation cells.
- The enhanced tissue repair capacity of e-CSC suggests significant translational advantages for regenerative medicine.
- These findings offer insights into the ontogeny of stemness during fetal development.