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Cell viability in normal fibroblasts and liver cancer cells after treatment with iron (III), nickel (II), and their mixture
2018
Terpiłowska, Sylwia | Siwicka-Gieroba, Dorota | Siwicki, Andrzej Krzysztof
Introduction: Nickel and iron are very commonly occurring metals. Nickel is used in industry, but nowadays it is also used in medical biomaterials. Iron is an element necessary for cell metabolism and is used in diet supplements and biomaterials, whence it may be released along with nickel. Material and Methods: BALB/3T3 and HepG2 cells were incubated with iron chloride or nickel chloride at concentrations ranging from 100 to 1,400 µM. The following mixtures were used: iron chloride 200 µM plus nickel chloride 1,000 µM, or iron chloride 1,000 µM plus nickel chloride 200 µM. The cell viability was determined with MTT, LHD, and NRU tests. Results: A decrease in cell viability was observed after incubating the BALB/3T3 and HepG2 cells with iron chloride or nickel chloride. A synergistic effect was observed after iron chloride 1,000 μM plus nickel chloride 200 μM treatment in all assays. Moreover, the same effect was observed in the pair iron chloride 200 μM plus nickel chloride 1,000 μM in the LDH and NRU assays. Conclusions: Iron (III) and nickel (II) decrease cell viability. Iron chloride at a concentration of 200 µM protects mitochondria from nickel chloride toxicity.
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