Biological effects of combined ultrasound and cisplatin treatment on ovarian carcinoma cells

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Authors

BERNARD Vladan ŠKORPÍKOVÁ Jiřina MORNSTEIN Vojtěch SLANINOVÁ Iva

Year of publication 2010
Type Article in Periodical
Magazine / Source Ultrasonics
MU Faculty or unit

Faculty of Medicine

Citation
Field Biophysics
Keywords Carcinoma cells; Cisplatin; Ultrasound; Viability; MTT test
Description Abstract- The effects of low-power ultrasound, the anti-cancer drug cisplatin, and their combined application were studied in two lines of human ovarian carcinoma cells, A2780 and A2780cis. Four modes of treatment were used: exposure to ultrasonic field, application of cisplatin, exposure to ultrasound followed by cisplatin, and presence of cisplatin followed by exposure to application ultrasound. Ultrasound was used at intensities of 0.5 W/cm(2) and 1.0 W/cm(2) for 10 min, cisplatin was applied at concentrations of 1 mu M and 6 mu M per cell suspension treated in A2780 and cisplatin-resistant A2780cis cells, respectively. The results of each experimental treatment were assessed by the resultant cell viability related to the viability of control cells, using a standard MTT test. It was shown that a combined effect of ultrasound and cisplatin was more effective than that of ultrasound or cisplatin alone. It also appeared that the order of application played a role, with the cisplatin-ultrasound treatment lowering cell viability more than the ultrasound-cisplatin treatment. It can be assumed that the exposure of cells to a low-power ultrasonic field has an immediate effect on the structure of cell surfaces and, consequently, on entry of cisplatin into the cell.
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