Abstract
The Friend-virus-derived1 mouse erythroleukaemia (MEL) cell lines represent transformed early erythroid precursors that can be induced to differentiate into more mature erythroid cells by a variety of agents including dimethyl sulphoxide (DMSO)2There is a latent period of 12 hours after inducer is added, when 80–90% of the cells become irreversibly committed to the differentiation programme, undergoing several rounds of cell division before permanently ceasing to replicate3,4. After DMSO induction, a biphasic decline in steady-state levels of c-myc5,6 and c-myb6 messenger RNAs occurs. Following the initial decrease in c-myc mRNA expression, the subsequent increase occurs in, and is restricted to, the Gl phase of the cell cycle7. We sought to determine whether the down-regulation is a necessary step in chemically induced differentiation. Experiments reported here indicate that expression in MEL cells of a transf ected human c-myc gene inhibits the terminal differentiation process.
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Dmitrovsky, E., Kuehl, W., Hollis, G. et al. Expression of a transfected human c-myconcogene inhibits differentiation of a mouse erythroleukaemia cell line. Nature 322, 748–750 (1986). https://doi.org/10.1038/322748a0
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DOI: https://doi.org/10.1038/322748a0
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