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Keywords :
Animals; Cells, Cultured; Cisplatin/pharmacology; DNA/metabolism; Ethidium/pharmacology; Macrophages/drug effects/ultrastructure; Mice; Mice, Inbred C57BL; Microscopy, Electron; Mitosis/drug effects; Peritoneum/cytology; Vacuoles
Abstract :
[en] Mouse peritoneal macrophages were cultivated in vitro and treated with ethidium bromide (EB) or with cis-dichloro-diammine platinum (II) (cis-Pt). EB provokes strong cytological alterations and cell degeneration; cis-Pt was not toxic under our experimental contitions. EB-DNA complex penetrates into the macrophages, is liberated from DNA in vacuoles, then diffuses into the cell and is highly cytotoxic. Cis-Pt-DNA complex also penetrates into the cells, but cis-Pt cannot be released from DNA, cis-Pt-DNA complex accumulates inside cytoplasmic vacuoles but has no cytotoxic activity.
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