Abstract
Pentoxifylline (PTX) is a methylxanthine widely used in clinical practice. The mechanism of PTX effects on cellular and molecular level have not been fully explained yet. The present study was carried out to investigate the cytogenetic effect of this drug using cultured Chinese hamster V79 cells and human blood lymphocytes in vitro. The occurrence of chromosomal aberrations (CA), sister chromatid exchanges (SCE) and micronuclei (MN) was observed after the treatment of cells by different concentrations (0.002–2.0 mg/ml) of PTX. In exposed V79 cells and lymphocytes as well, the dose-dependent increases of the above mentioned cytogenetic endpoints were found. The statistically significant increase has appeared at lower PTX concentrations in human lymphocytes than in V79 cells in all the investigated parameters. Our results show that, the applied concentrations of PTX has the clastogenic effect on in vitro cultured V79 cells and human lymphocytes. These findings are notable because of the frequent use of this drug and may serve as preliminary data to the further detailed examination of PTX action on molecular level.
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