Table 1

Activity of DT-diaphorase and other reductive enzymes in HT29, BE vector control, BE2 and BE5 cell lines

Cell LineEnzyme Activity Reduction of Cytochromec
DT-diaphoraseCytochrome P450 ReductaseCytochrome b5 Reductase
nmol/min/mg protein
HT29940  ± 2004.7  ± 1.68.0  ± 2.1
BE vector control<2.01-a 7.3  ± 2.123.5  ± 1.5
BE21400  ± 5008.3  ± 1.621.6  ± 1.2
BE51300  ± 200NDND

Values are mean ± SD of triplicate experiments.

    • ND, not determined.

    • 1-a Lower limit of detection.