The toxicity of platinum(II) ion could be significantly modified by coordination with some organic compounds. In our study, the cytotoxicity and the influence of platinum(II) complexes, such as cisplatin, cis-[PtCl(2)(NH(3))(2)], [PtCl(2)(SMC)] and [PtCl(2)(DMSO)(2)] (where SMC is S-methyl-l-cysteine and DMSO is dimethyl sulphoxide) on spontaneous motility of isolated human fallopian tubes were investigated. Cisplatin showed potent pro-apoptotic effects on peripheral blood mononuclear cells (PBMC). However, peripheral blood mononuclear cells were substantially less sensitive to [PtCl(2)(SMC)] and [PtCl(2)(DMSO)], and these compounds showed no toxic effect on PBMC in all concentrations examined. Cisplatin showed concentration-dependent inhibition of spontaneous contractions of the isolated ampulla. (EC(50)=1.14+/-0.03 x 10(-6)M/l, r=0.714, p<0.05) while [PtCl(2)(SMC)] and [PtCl(2)(DMSO)(2)] did not affect spontaneous contractions of isolated fallopian tube ampulla.
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