Asian Pacific Journal of Cancer Prevention

Asian Pacific Journal of Cancer Prevention (아시아태평양암예방학회)
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Histological Subtype of Ovarian Cancer as a Determinant of Sensitivity to Formamidine Derivatives of Doxorubicin - in Vitro Comparative Studies with SKOV-3 and ES-2 Cancer Cell Lines

  • Denel-Bobrowska, M. (Department of Medical Biophysics, Institute of Biophysics, Faculty of biology and Environmental Protection, University of Lodz) ;
  • Lukawska, M (Department of Modified Antibiotics, Institute of Biotechnology and Antibiotics) ;
  • Oszczapowicz, I (Department of Modified Antibiotics, Institute of Biotechnology and Antibiotics) ;
  • Marczak, A (Department of Medical Biophysics, Institute of Biophysics, Faculty of biology and Environmental Protection, University of Lodz)
  • Published : 2016.09.01
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Abstract

Background: Development of new apoptosis-inducing drugs is a promising trend in anticancer therapy. For this purpose several formamidinoderivatives of doxorubicin were synthesized. The aim of our study was to investigate effects of the five formamidinodoxorubicins in the ES-2 human ovarian clear cell carcinoma line, for comparison with data obtained previously for SKOV-3 human ovarian adenocarcinoma cells, to answer the question of whether and to what extent the histological cell type is a possible determinant of sensitivity to tested anthracyclines. Materials and Methods: In our experimental work the following methods were used: spectrophotometric assays with MTT; fluorimetric assays - double staining with Hoechst 33258 and propidium iodide (PI), measurement of caspase-3, -8, -9 activity, intracellular accumulation of DOX and analogues, estimation of drug uptake, mitochondrial transmembrane potential; flow cytometry - phosphatidylserine (PS) externalization with annexin V-FITC and PI fluorochromes. Results: Effects of the derivatives of doxorubicin were partially linked with the specific type of cancer cell although intracellular accumulation and cellular uptake of DOX and derivatives were similar in both. All of the investigated derivatives were considerably more cytotoxic than DOX. Formamidinodoxorubicins were able to induce caspase-dependent apoptotic cell death in both cell types. Conclusions: All new formamidine derivatives of DOX were able to induce caspase - dependent apoptosis in human ovarian cancer cell lines SKOV-3 and ES-2. Obtained results suggested that formamidine derivatives of DOX may be promising candidates for the prospective chemotherapeutic agents for the two different histological subtypes of ovarian cancer.

Keywords

References

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