Abstract:We used a cell sorter assay to evaluate the efficacy of the hypoxic cell sensitizer etanidazole over 3-4 logs of cell inactivation, with particular attention to the clinically relevant low-dose survival region. Analysis of the radiation responses in a panel of six human tumour cell lines under conditions of hypoxia and hypoxia with etanidazole revealed both a cell-line and radiation dose-dependence in the sensitizing ability of this drug. Fits of the linear-quadratic (LQ) model to the low-dose region of cell s… Show more
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