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Variable expression of lineage regulators in differentiated stromal cells indicates distinct mechanisms of differentiation towards common cell fate.

TitleVariable expression of lineage regulators in differentiated stromal cells indicates distinct mechanisms of differentiation towards common cell fate.
Publication TypeJournal Article
Year of Publication2014
AuthorsJääger K, Fatkina A, Velts A, Orav E, Neuman T
JournalGene
Volume533
Issue1
Pagination173-9
Date Published2014 Jan 1
ISSN1879-0038
KeywordsCell Differentiation, Cell Lineage, Cells, Cultured, Humans, Mesenchymal Stromal Cells, Real-Time Polymerase Chain Reaction
Abstract

Mesenchymal stem cells (MSCs) possess a multi-lineage differentiation capacity that makes them important players in the field of regenerative medicine. MSC populations derived from different tissues or donors have been shown to exhibit variable gene expression patterns. Further, it is widely acknowledged that MSC isolates are heterogeneous mixtures of cells at different developmental stages. However, the heterogeneity of expression of lineage regulators has not been linked to differentiation potential of different MSC populations towards mesenchymal lineages. Here, we analyzed variation of expression of differentiation markers across whole population and between single differentiating cells of multipotent stromal cell populations derived from adipose tissue (AdMSCs) and skin (FBs) of seven donors. The results of the analyses show that all cell populations exhibit similar differentiation potential towards adipocyte, osteoblast and chondrocyte lineages despite tissue type- and donor-specific variations of expression of differentiation-associated genes. Further, we detected variable expression of lineage regulators in individual differentiating cells. Together, our data indicate that single cells of stromal cell populations could use distinct molecular mechanisms to reach a common cell fate.

DOI10.1016/j.gene.2013.09.094
Alternate JournalGene
PubMed ID24103479
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