Low/Negative Expression of PDGFR-α Identifies the Candidate Primary Mesenchymal Stromal Cells in Adult Human Bone Marrow.
Författare
Summary, in English
Human bone marrow (BM) contains a rare population of nonhematopoietic mesenchymal stromal cells (MSCs), which are of central importance for the hematopoietic microenvironment. However, the precise phenotypic definition of these cells in adult BM has not yet been reported. In this study, we show that low/negative expression of CD140a (PDGFR-α) on lin(-)/CD45(-)/CD271(+) BM cells identified a cell population with very high MSC activity, measured as fibroblastic colony-forming unit frequency and typical in vitro and in vivo stroma formation and differentiation capacities. Furthermore, these cells exhibited high levels of genes associated with mesenchymal lineages and HSC supportive function. Moreover, lin(-)/CD45(-)/CD271(+)/CD140a(low/-) cells effectively mediated the ex vivo expansion of transplantable CD34(+) hematopoietic stem cells. Taken together, these data indicate that CD140a is a key negative selection marker for adult human BM-MSCs, which enables to prospectively isolate a close to pure population of candidate human adult stroma stem/progenitor cells with potent hematopoiesis-supporting capacity.
Avdelning/ar
Publiceringsår
2014
Språk
Engelska
Sidor
965-974
Publikation/Tidskrift/Serie
Stem Cell Reports
Volym
3
Issue
6
Fulltext
Länkar
Dokumenttyp
Artikel i tidskrift
Förlag
Cell Press
Ämne
- Cell and Molecular Biology
Status
Published
Forskningsgrupp
- Bone marrow stem cells and cellular therapies
ISBN/ISSN/Övrigt
- ISSN: 2213-6711