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Summary Several phenylaminopyrimidoisoquinolinequinones (APIQs) were tested for their cytotoxicity against different cancer cell lines (K562, T24, HepG2) in the presence or absence of ascorbate. Ascorbate enhanced the toxic effects of quinones with first half-wave potential EI1/2 values in the range of −480 to −660 mV. Phenylaminoquinones that were unsubstituted at position 6 exhibited greater cytotoxic...
Summary We describe the biological activity of some furylbenzo- and naphthoquinones (furylquinones) on hepatocarcinoma cells and healthy rat liver slices. The effects of furylquinones on cancer cells (Transplantable Liver Tumor, TLT) were assessed by measuring cell death (membrane cell lysis); intracellular contents of ATP and GSH and the activity of caspase-3 were used to determine the type of cell...
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