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  • Title: Induction of the granulocyte-macrophage colony-stimulating factor (CSF) receptor by granulocyte CSF increases the differentiative options of a murine hematopoietic progenitor cell.
    Author: Kreider BL, Phillips PD, Prystowsky MB, Shirsat N, Pierce JH, Tushinski R, Rovera G.
    Journal: Mol Cell Biol; 1990 Sep; 10(9):4846-53. PubMed ID: 1697033.
    Abstract:
    32DC13(G) is an interleukin-3-dependent murine hematopoietic precursor cell line which differentiates into neutrophilic granulocytes upon exposure to granulocyte colony-stimulating factor (G-CSF) but ceases to proliferate and dies when exposed to granulocyte-macrophage (GM)-CSF. Surface receptors for GM-CSF are undetectable on 32DC13(G) cells but can be induced by priming the cells with G-CSF. Exposure of the G-CSF-primed cells to GM-CSF then results in the generation of monocytes as well as granulocytes. The acquired competence to respond to GM-CSF remains irreversibly encoded in the primed cells, although the GM-CSF receptor can be down regulated by interleukin-3. This phenomenon suggests a mechanism by which hematopoietic precursors may obtain additional receptors, thereby increasing their differentiative potential.
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