Inhibitory effect of cisplatin and [Pt(dach)Cl2] on the activity of phospholipase A2
Maja Radisavljević1, Tina Kamčeva, Živadin D Bugarčić
1Laboratory of Physical Chemistry, Vinča Institute of Nuclear Sciences, University of Belgrade, Belgrade, Republic of Serbia.
Abstract:
This work has been focused on testing the influence of two selected Pt(II) complexes cisplatin, Pt(NH₃)₂Cl₂, and [Pt(dach)Cl₂] on the activity of porcine pancreatic phospholipase A₂ (PLA₂). It has been assumed that this enzyme plays a role in carcinogenesis and that it could be a target in the tumour therapy. The results of this study show that both Pt(II) complexes inhibit the activity of the enzyme, though they bind to it in a different manner. While cisplatin interacts with the enzyme in an acompetitive manner, the stable interaction of [Pt(dach)Cl₂] with PLA₂ could not be detected under our experimental conditions.
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