Figure 8. Glucose deprivation limits the rapid detoxification of HEDS by cellular bioreduction to mercaptoethanol (ME).
Culture media was assayed for ME by DTNB assay following HEDS exposure of p53 wild type HCT116 (A) and p53 mutant HT29 (B) cells cultured in normal or glucose-deprived media. Decreased HEDS conversion to ME occurred preferentially in glucose-deprived cells. Mean for three to five independent experiments are shown with SD. A statistically significant decrease in extracellular ME levels occurred independent of p53 status in glucose deprived cells (*P<0.01).