Journal of B.U.ON. : official journal of the Balkan Union of Oncology · 2006
Synergistic interaction between a mixed ligand copper (II) chelate complex and two anticancer agents in T47D human breast cancer cells in vitro.
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Geromichalos G D, Trafalis D T, Katsoulos G A, Papageorgiou A, Dalezis P, Triandafillidis E B, Hadjikostas C C, Athanassiou A
Аннотация
PURPOSE: We have developed a copper(II) chelate complex with a tridentate ONN-Schiff ligand and the anion of salicylate, showing a potent cytotoxic activity against a panel of human and murine cancer cell lines. In this experiment we have explored the combination effect between Cu(SalNEt(2))salicylate (Cu-Sal) complex and two widely used drugs in cancer chemotherapy, bleomycin (BLM) and 5-fluorouracil (5-FU), against T47D human breast cancer cells. Previous theoretical quantum-chemical studies of this complex and ass adducts with biological molecules elucidated the underlying mechanism of action of this complex.
MATERIALS AND METHODS: Cells grown in adherence in 96-well microplates were exposed simultaneously to both agents for 48 h. During cytotoxicity was assessed via the XTT colorimetric assay. The combined drug interaction was assessed with the median-effect analysis and the combination index (CI).
RESULTS: Concurrent treatment of cells with Cu-Sal complex and the chemotherapeutic drugs BLM and 5-FU and the antioxidant agent ascorbic acid (AsA) resulted mainly in synergistic interaction for most concentration ratios.
CONCLUSION: Cu-Sal complex interacts synergistically with the chemotherapeutic drugs for most schedules of administration. These findings call for prompting to search for possible interaction of this complex with other cellular elements of fundamental importance in cell proliferation.
MATERIALS AND METHODS: Cells grown in adherence in 96-well microplates were exposed simultaneously to both agents for 48 h. During cytotoxicity was assessed via the XTT colorimetric assay. The combined drug interaction was assessed with the median-effect analysis and the combination index (CI).
RESULTS: Concurrent treatment of cells with Cu-Sal complex and the chemotherapeutic drugs BLM and 5-FU and the antioxidant agent ascorbic acid (AsA) resulted mainly in synergistic interaction for most concentration ratios.
CONCLUSION: Cu-Sal complex interacts synergistically with the chemotherapeutic drugs for most schedules of administration. These findings call for prompting to search for possible interaction of this complex with other cellular elements of fundamental importance in cell proliferation.