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In preceding papers, we proposed that procainamide hydrochloride, a class I antiarrhythmic agent, was able to protect mice and rats from cisplatin-induced nephrotoxicity and that it could exert its action through accumulation in kidneys followed by coordination with cisplatin (or its hydrolysis metabolites) and formation of a less toxic platinum compound(More)
Embryo-lethal and teratogenic effects caused by the cisplatin–procaine complex cis-diaminechloro-[2-(diethylamino) ethyl 4-amino-benzoate, N 4]-chlorideplatinum(II) monohydrochloride monohydrate (DPR) were examined in CD-1 mice after a single administration of 7, 14, 21 or 28 mg/kg, injected on day 6, 9, 13 or 16 of pregnancy. At day 18 of pregnancy fetuses(More)
Cis-diaminechloro-[2-(diethylamino) ethyl 4-amino-benzoate, N4]-chloride platinum (II) monohydrochloride monohydrate (DPR) is a new platinum triamine complex obtained from the synthesis of cisplatin and procaine. In this paper we analyzed, adopting a disease-oriented strategy, the tumour selectivity of this compound, its ability to induce apoptosis and its(More)
Efforts have been made to reduce the undesirable side effects of cisplatin, mainly nephro- and neurotoxicity, but their reduction is usually accompanied by a concomitant inhibition of antitumor activity. The local anesthetic procaine hydrochloride (P.HCl) improves the therapeutic index of cisplatin not only by the reduction of its nephro- and hemotoxicity,(More)
The inhibition of cell proliferation by 1,4-bis (1-naphthyl)-2,3-dinitro-1,3-butadiene (Naph-DNB) was evaluated in vitro against 4 cell lines (L1210/DDP, A2780/DX3, HCT-8/FU7dR, A549-T12) selected for their resistance to cisplatin, doxorubicin, 5-fluorouracil and taxol, and their wild-type counterparts. Naph-DNB is a novel anti-cancer compound obtained(More)
The pattern of inhibition of cell proliferation and cytotoxicity in vitro by 1,4-bis(1-naphthyl)-2,3-dinitro-1,3-butadiene (Naph-DNB) was evaluated by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and the trypan blue (TB) dye exclusion assays in nine murine and human cell lines of different histologic origin. In our culture(More)
BACKGROUND Our previous studies showed that procainamide hydrochloride may be an important modulator of cisplatin toxicity and antitumour activity. This study was performed in order to investigate if procainamide hydrochloride may influence the therapeutic index of cisplatin by inducing modifications of its pharmacokinetics and pharmacodymanics in vivo. (More)
We evaluated in vitro the inhibitory effect of cis-diaminechloro-[2-(diethylamino) ethyl 4-amino-benzoate, N4]-chlorideplatinum(II) monohydrochloride monohydrate (DPR) on colony formation by granulocyte/macrophage (CFU-GM) peripheral blood progenitor cells, representing a method to quantitate the toxicity of drugs to the hematopoietic system, and human(More)
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