Journal
DIFFERENTIATION
Volume 87, Issue 3-4, Pages 147-160Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.diff.2014.02.007
Keywords
Adipose derived stem cells; c-Kit; Pluripotency; Differentiation; Self-renewal; Telomerase
Categories
Funding
- Fondo de lnvestigaciones Sanitarias (Healthcare Research Fund) [PI-308, CP-03/00007]
- Ministry of Health, Spain
- Ministry of Economy and Competitiveness, Spain [SAF2010-19230]
- BioMedical Foundations Mutua Madrilena and Marato TV3, Spain
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The stromal vascular fraction (SVF) of adipose tissue is an easy to obtain source of adipose tissue-derived stem cells (ADSCs). We and others have achieved significant but suboptimal therapeutic effects with ADSCs in various settings, mainly due to low rates of differentiation into specific cell types and with the downside of undesired side effects as a consequence of the undifferentiated ADSCs. These data prompted us to find new stem cell-specific markers for ADSCs and/or subpopulations with higher differentiation potential to specific lineages. We found a subpopulation of human ADSCs, marked by c-Kit positiveness, resides in a perivascular location, and shows higher proliferative activity and self-renewal capacity, higher telomerase activity and expression, higher in vitro adipogenic efficiency, a higher capacity for the maintenance of cardiac progenitors, and higher pancreatogenic and hepatogenic efficiency independently of CD105 expression. Our data suggests that the isolation of ADSC subpopulations with anti-c-Kit antibodies allows for the selection of a more homogeneous subpopulation with increased cardioprotective properties and increased adipogenic and endodermal differentiation potential, providing a useful tool for specific therapies in regenerative medicine applications. (C) 2014 International Society of Differentiation. Published by Elsevier B.V. All rights reserved,
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