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Published on: September 20, 2016
Thymidylate synthase gene variations: predictive and prognostic markers.
Georg Lurje1, Philipp C Manegold, Yan Ning
1Division of Medical Oncology, University of Southern California/Norris Comprehensive Cancer Center, Keck School of Medicine, Los Angeles, California, USA.
This review examines thymidylate synthase (TS) pharmacogenomics in 5-fluorouracil (5-FU) chemotherapy. Understanding TS genetic variations can personalize cancer treatment and improve patient outcomes.
Area of Science:
- Oncology
- Pharmacogenomics
- Molecular Biology
Background:
- 5-fluorouracil (5-FU) is a primary chemotherapy for colorectal cancer, but efficacy varies.
- Pharmacogenomics analyzes genetic variations to tailor drug efficacy and toxicity.
- Thymidylate synthase (TS) expression is linked to 5-FU response, but variability is not fully understood.
Purpose of the Study:
- To review pharmacogenomic studies on thymidylate synthase (TS).
- To elucidate the role of TS as a prognostic and predictive marker in 5-FU chemotherapy.
Main Methods:
- Literature review of pharmacogenomic studies focusing on TS.
- Analysis of the relationship between TS expression, germ-line polymorphisms, and 5-FU treatment outcomes.
Main Results:
- Higher TS protein and mRNA expression generally correlates with poorer outcomes in 5-FU treated patients.
- Germ-line polymorphisms in TS may influence its expression, affecting prognosis and 5-FU response.
- Conflicting results exist, highlighting the complexity of TS as a marker.
Conclusions:
- TS pharmacogenomics offers potential for personalized 5-FU chemotherapy.
- Further research is needed to fully understand TS variability and its clinical utility.
- Identifying reliable TS markers is crucial for tailoring cancer treatment regimens.
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