dUTPase Expression and Sensitivity to TS Inhibitor ZD9331
Author Information
Author(s): Webley S D, Hardcastle A, Ladner R D, Jackman A L, Aherne G W
Primary Institution: CRC Centre for Cancer Therapeutics at the Institute of Cancer Research
Hypothesis
The study investigates the relationship between dUTPase expression and cellular sensitivity to thymidylate synthase inhibition.
Conclusion
The study found that dUTPase expression and activity are important factors influencing sensitivity to the TS inhibitor ZD9331 in lung tumor cell lines.
Supporting Evidence
- Sensitivity to the TS inhibitor ZD9331 varied up to 20-fold among the cell lines.
- TS protein expression correlated with TS activity.
- dUTPase activity varied 17-fold and correlated with dUTPase protein expression.
- A549 cells with low dUTPase activity showed increased sensitivity to ZD9331.
Takeaway
This study shows that a protein called dUTPase helps cells respond to a cancer treatment, and if there's too much of it, the treatment might not work as well.
Methodology
The study used a 5-day MTT assay to assess sensitivity to the TS inhibitor ZD9331 in four human lung tumor cell lines.
Participant Demographics
Four human lung tumor cell lines were used in the study.
Statistical Information
P-Value
0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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