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Trans-[PtCl(2)(N,N-dimethylamine)(isopropylamine)] is a novel trans-platinum compound that shows cytotoxic activity in several cisplatin resistant cell lines. The aim of this paper was to analyse, by means of molecular cell biology techniques and total reflection X-ray fluorescence (TXRF), the cytotoxic activity, the induction of apoptosis, the cellular uptake and the DNA binding of trans-[PtCl(2)(N,N-dimethylamine)(isopropylamine)] in the cisplatin resistant cell line A2780cisR. The results show that this drug is more cytotoxic and induces a higher amount of apoptotic cells than cisplatin in A2780cisR cells. However, the intracellular accumulation and extent of binding to DNA of trans-[PtCl(2)(N,N-dimethylamine)( isopropylamine)] is lower than that of cis-DDP. Moreover, trans-[PtCl(2)(N,N-dimethylamine)(isopropylaminae)] is partially inactivated by intracellular levels of glulathione. The result suggest that circumvention of ciplatin resistance by trans-[PtCl(2)(N,N-dimethylamine)(isopropylamine)] in A2780cisR cells might be related with the ability of this drug to induce apoptosis.

metal-based drugs

Cellular Uptake, DNA Binding and Apoptosis Induction of Cytotoxic Trans-[P<scp>t</scp><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mtext>Cl</mml:mtext><mml:mn>2</mml:mn></mml:msub></mml:math>(N,N-dimethylamine)(Isopropylamine)] in A2780<scp>cis</scp>R Ovarian Tumor Cells

Cellular Uptake, DNA Binding and Apoptosis Induction of Cytotoxic Trans-[PtCl2(N,N-dimethylamine)(Isopropylamine)] in A2780cisR Ovarian Tumor Cells