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- W2069392318 abstract "Abstract Stromal cell-derived factor-1α (SDF-1α) is a strong migratory stimulant for hematopoietic stem and progenitor cells (HSPCs). The hematopoietic cytokines thrombopoietin (TPO), Flt3-ligand (FL), stem cell factor (SCF) and interleukin 11 (IL-11) are able to stimulate amplification of primitive murine hematopoietic stem cells (HSCs) in vitro . The effects of these cytokines on SDF-1α-induced migratory activity of murine Lin - c-kit + HSPC were analyzed by cultivation of these cells in the presence of 12 combinations of FL, TPO, SCF and IL-11. Migratory activity was measured in a three-dimensional collagen matrix using time-lapse video microscopy. Each cytokine combination had a distinct effect on SDF-1α-stimulated migratory activity. For instance, FL- and SCF-cultivated cells showed a high migratory SDF-1α response, while cells cultivated with SCF, TPO and IL-11 did not react to SDF-1α stimulation with an elevated migration rate. Our data indicate that the differences in the migratory SDF-1α response are not related to different CXCR4 expression levels, but rather to the differential engagement of the CXCR4-dependent MAPK p42/44 and PI3K signal transduction pathways. This indicates that hematopoietic cytokines can have a significant impact on SDF-1α-stimulated migratory activity and the underlying intracellular signaling processes in cultivated HSPCs." @default.
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- W2069392318 date "2008-06-06" @default.
- W2069392318 modified "2023-09-30" @default.
- W2069392318 title "Cytokine combinations differentially influence the SDF-1α-dependent migratory activity of cultivated murine hematopoietic stem and progenitor cells" @default.
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- W2069392318 doi "https://doi.org/10.1515/bc.2008.099" @default.
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