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  • Title: Possible mechanisms of action of lithium on augmentation of in vitro spontaneous myeloid colony formation.
    Author: Spitzer G, Verma DS, Barlogie B, Beran MA, Dicke KA.
    Journal: Cancer Res; 1979 Aug; 39(8):3215-9. PubMed ID: 313244.
    Abstract:
    To understand the possible mechanisms of lithium carbonate-induced neutrophilia, the in vitro effect on human myeloid progenitor cells was examined. A significant increase in spontaneous colony formation (15 of 24 experiments) was observed with the addition of lithium. Increased colony formation seldom occurred when human placental conditioned media as a source of colony-stimulating activity (CSA) was simultaneously added to the cultures. Further data suggest that lithium requires an adherent marrow cell population for this action and that increases in CSA-containing cultures may be due to suboptimal CSA concentrations. Lithium was shown to release CSA from marrow cells and adherent cell population prepared from human bone marrow. Lithium possibly increases spontaneous human myeloid colony development indirectly through CSA release by adherent cells.
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