title: The effect of antitumor drugs on oxidative stress in B16 and S91 melanoma cells in vitro.
abstract: BACKGROUND
  This study examined the effect of actinomycin-D (AMD), adriamycin (ADR), cisplatin (Cis-Pt), vincristine (VCR), cytosine arabinoside (Ara-C) and dacarbazine (DTIC) on the survival of B16 and S91 mouse melanoma cells in vitro, and on the concentration of thiobarbituric acid reactive substances (TBARS), the content of conjugated dienes (CD), and the activity of superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx).
  
  
  METHODS
  B16 and S91 mice melanoma cells were cultivated in culture medium. After the selected drugs had been added to the culture medium, the viability of the melanoma cells was tested using two methods: the cell count in a phase contrast microscope with inverted optics, and the MTT Test.
  
  
  RESULTS
  The survival of melanoma cells after incubation with all cytostatic drugs was significantly lower than in the controls. The concentrations of CD and TBARS and the activity of antioxidant enzymes in melanoma cells after incubation with antitumor drugs were higher than in the controls. The highest concentration of CD and TBARS was shown after incubation with ADR. The highest activity of SOD was noticed after incubation with AMD. The highest activity of CAT was found after incubation with AMD in B16 cells and with Cis-Pt in S91 cells. The highest activity of GPx was found after incubation with Ara-C.
  
  
  CONCLUSIONS
  The changes in antioxidant enzyme activity and the concentration of lipid peroxidation products confirm the participation of reactive oxygen species (ROS) in the cytotoxic action of antitumor drugs.
authors.affiliation: Department of Medical Biology, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland. alina-wozniak@wp.pl
authors.forename: Alina
authors.initials: A
authors.lastname: Woiniak
authors.forename: Gerard
authors.initials: G
authors.lastname: Drewa
authors.forename: Bartosz
authors.initials: B
authors.lastname: Woźniak
authors.forename: Dietrich O
authors.initials: DO
authors.lastname: Schachtschabel
authors.forename: Celestyna
authors.initials: C
authors.lastname: Mila-Kierzenkowska
authors.forename: Tomasz
authors.initials: T
authors.lastname: Drewa
authors.forename: Dorota
authors.initials: D
authors.lastname: Olszewska-Słonina
authors.forename: Małgorzata
authors.initials: M
authors.lastname: Sopońska
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000494:pharmacology*; D000975:Antioxidants / Q000378:metabolism; D002374:Catalase / Q000378:metabolism; D045744:Cell Line, Tumor; D002470:Cell Survival / Q000187:drug effects; D004789:Enzyme Activation; D005979:Glutathione Peroxidase / Q000378:metabolism; D015227:Lipid Peroxidation / Q000187:drug effects; D008545:Melanoma; D051379:Mice; D018384:Oxidative Stress / Q000187:drug effects*; D013482:Superoxide Dismutase / Q000378:metabolism; D017392:Thiobarbituric Acid Reactive Substances / Q000378:metabolism
chemical_list: D000970:Antineoplastic Agents; D000975:Antioxidants; D017392:Thiobarbituric Acid Reactive Substances; D002374:Catalase; D005979:Glutathione Peroxidase; D013482:Superoxide Dismutase