Deficient activation by a human cell strain leads to mitomycin resistance under aerobic but not hypoxic conditions
1989
Response to Critique on DT-Diaphorase and Chemotherapy
publication
Author Information
Author(s): R. Marshall, A.M. Rauth, M. Paterson
Primary Institution: Ontario Cancer Institute
Hypothesis
Does DT-diaphorase play a role in the effectiveness of chemotherapeutic agents for hypoxic tumor cells?
Conclusion
The study suggests a correlation between DT-diaphorase activity and resistance to mitomycin C in certain cell strains.
Supporting Evidence
- DT-diaphorase activity correlates with sensitivity to mitomycin C in multiple cell systems.
- Decreased DT-diaphorase activity is associated with increased resistance to mitomycin C.
- Further investigation is needed to understand the role of other enzyme systems in this resistance.
Takeaway
This study looks at how a specific enzyme might affect how well cancer treatments work in certain cells.
Limitations
The study acknowledges the complexity of enzyme interactions and the difficulty in extrapolating cell-free results to cellular conditions.
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