Sensitivity of Testis and Bladder Cancer Cells to Chemotherapy
Author Information
Author(s): M.C. Walker, J.R.W. Masters, G.P. Margison
Primary Institution: University College London
Hypothesis
Is the sensitivity of testis tumor cells to nitrosoureas related to the levels of the DNA repair enzyme ATase?
Conclusion
Testis tumor cell lines are more sensitive to nitrosoureas than bladder cell lines, but this sensitivity is not solely explained by ATase levels.
Supporting Evidence
- Testis tumor cell lines were four times more sensitive to MNU and six times more sensitive to mitozolomide than bladder cell lines.
- ATase activity correlated with sensitivity to mitozolomide in testis cell lines but not in bladder cell lines.
- High levels of ATase did not consistently confer resistance to nitrosoureas.
Takeaway
Testis cancer cells are better at fighting certain drugs than bladder cancer cells, but it's not just because of a specific enzyme they have.
Methodology
The study compared the sensitivities of five human testis and five bladder tumor cell lines to two nitrosoureas using the MTT assay and measured ATase levels.
Limitations
The study does not account for all possible mechanisms of drug resistance beyond ATase levels.
Participant Demographics
Five human testis and five bladder tumor cell lines were used.
Statistical Information
P-Value
p<0.01
Statistical Significance
p<0.01
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