Determination of free cisplatin in medium by differential pulse polarography after ultrasound and cisplatin treatment of a cancer cell culture

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Authors

BERNARD Vladan FOJT Lukáš ŠKORPÍKOVÁ Jiřina MORNSTEIN Vojtěch

Year of publication 2011
Type Article in Periodical
Magazine / Source Indian Journal of Biochemistry & Biophysics
MU Faculty or unit

Faculty of Medicine

Citation
Field Biophysics
Keywords cisplatin; difenecial pulse polarography; ovarina cancer cells; ultrasound
Description The in vitro study was carried out for detection of the cisplatin in free form and in culture medium, depending on various conditions of sonodynamic human ovarian cancer cells A2780 treatment by differential pulse polarography (DPP). For sonodynamic treatment, we used cisplatin alone and combined cisplatin/ultrasound treatments. The ultrasound exposure intensity of 1.0 and 2.0 W cm-2 in far field for incubation periods 1, 24 and 48 h was used. The parameters of DPP measurements were - 1 s drop time, 5 mV s-1 voltage scan rate, 50 mV modulation amplitude and negative scanning direction; platinum wire served as counter electrode and Ag|AgCl|3 M KCl as reference electrode. The results showed the dependence of free platinum quantities in culture medium on incubation time and treatment protocol. Thus, the DPP method is suitable for the detection and quantification of free cisplatin in the culture medium of cell suspension. Ultrasound field can be important factor during cytostatic therapy.
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