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Studies on cis-DDP, [Pt(Dach)(MePhSO)Cl]+ and [PtNH3)2(N-Py)Cl]+ binding to fumarase
1University of Marmara, Faculty of Pharmacy, Department of Analytical Chemistry, Istanbul, Turkey.
Drug Metabolism and Drug Interactions
|January 1, 1995
Abstract:
Two platinum analogs which have suitable physical properties and show antineoplastic activities comparable or greater than that obtained with cis-DDP were synthesized: [cis-Pt A2 (Am) Cl] NO3 and [Pt (dach) (RR'SO) Cl] NO3 (A: ammonia, Am: pyridine, dach: transdiaminocyclohexane, RR'SO: methylphenylsulphoxide). Their interactions with fumarase were studied. The inhibition of fumarase activity by the platinum compounds was followed kinetically by a spectrophotometric method. These two platinum compounds generally inhibited fumarase less than cis-DDP at the concentrations and reaction media (phosphate buffer or NaCl-buffer) studied.