In vitro generation of long-term repopulating hematopoietic stem cells by fibroblast growth factor-1de Haan, G., Weersing, E., Dontje, B., van Os, R., Bystrykh, LV., Vellenga, E. & Miller, G., Feb-2003, In : Developmental Cell. 4, 2, p. 241-251 11 p.
Research output: Contribution to journal › Article › Academic › peer-review
The role of fibroblast growth factors and their receptors (FGFRs) in the regulation of normal hematopoietic stem cells is unknown. Here we show that, in mouse bone marrow, long-term repopulating stem cells are found exclusively in the FGFR(+) cell fraction. During differentiation toward committed progenitors, stem cells show loss of FGFR expression. Prolonged culture of bone marrow cells in serum-free medium supplemented with only FGF-1 resulted in robust expansion of multilineage, serially transplantable, long-term repopulating hematopoietic stem cells. Thus, we have identified a simple method of generating large numbers of rapidly engrafting stem cells that have not been genetically manipulated. Our results show that the multipotential properties of stem cells are dependent on signaling through FGF receptors and that FGF-1 plays an important role in hematopoietic stem cell homeostasis.
|Number of pages||11|
|Publication status||Published - Feb-2003|
- BONE-MARROW CELLS, MYELOPROLIFERATIVE DISORDER, FACTOR RECEPTOR-1, PROGENITOR CELLS, FUSION PROTEIN, MOUSE, TRANSLOCATION, EXPANSION, FGF, CULTURES