Modulation of the reversibility of actinomycin D cytotoxicity in HeLa cells by verapamil.

Abstract

Actinomycin D treatment (0.001-0.005 micrograms/ml; 0.5-24 h) induced a dose and time response shifting of nucleolar to nuclear fluorescence. In the presence of verapamil, cells were more responsive to actinomycin D. Translocation of protein B23 occurred with lower doses of actinomycin D and in shorter incubation times in the presence of verapamil. Short… (More)

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