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British Journal of Cancer logoLink to British Journal of Cancer
. 1992 Apr;65(4):519–522. doi: 10.1038/bjc.1992.107

Induction of myogenic differentiation in human rhabdomyosarcoma cells by ionising radiation, N,N-dimethylformamide and their combination.

G Nicoletti 1, C De Giovanni 1, L Landuzzi 1, G Simone 1, P Rocchi 1, P Nanni 1, P L Lollini 1
PMCID: PMC1977576  PMID: 1562460

Abstract

Differentiation-inducing ability of gamma-radiation, N,N-dimethylformamide and their combination has been tested on human rhabdomyosarcoma RMZ-RC2 clone cells. Ionising radiation at 2-5 Gy doses induced a more differentiated morphology, with the appearance of an increased proportion of multinuclear myotube-like cells, and a significant increase in myosin-positive and multinuclear cells. Radiation appeared to act by inducing de novo differentiated elements. N,N-dimethylformamide was able to induce an increased myosin expression, but did not affect multinuclear cell proportion. The combined treatment (ionising radiation and N,N-dimethylformamide) resulted in an additive increase in the proportion of myosin-positive cells, approaching 25-35%, but de novo differentiated elements were not increased above the levels obtained with irradiation alone.

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Selected References

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