Clinical relevance of different dihydropyrimidine dehydrogenase gene single nucleotide polymorphisms on 5-fluorouracil tolerance

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Clinical relevance of different dihydropyrimidine dehydrogenase gene single nucleotide polymorphisms on 5-fluorouracil tolerance.

PURPOSE Although single nucleotide polymorphisms (SNP) of the dihydropyrimidine dehydrogenase gene (DPYD) have been reported, which affect enzyme activity and the severity of 5-fluorouracil (5-FU) toxicity, no pretherapeutic detection has thus far been developed. We investigated 22 DPYD gene SNPs, their respective incidence, their link with grade 3 to 4 toxic side effects, and their management ...

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Evaluation of Clinical Value of Single Nucleotide Polymorphisms of Dihydropyrimidine Dehydrogenase Gene to Predict 5-Fluorouracil Toxicity in 60 Colorectal Cancer Patients in China

Dihydropyrimidine dehydrogenase (DPD) activity could be affected by single nucleotide polymorphisms (SNPs), resulting in either no effect, partial or complete loss of DPD activity. To evaluate if SNPs of DPD can be used to predict 5-FU toxicity, we evaluated five SNPs of DPD (14G1A, G1156T, G2194A, T85C and T464A) by TaqMan real time PCR in 60 colorectal cancer patients. Clinical data demonstra...

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Effect of dihydropyrimidine dehydrogenase single nucleotide polymorphisms on prognosis of breast cancer patients with chemotherapy

Defining biomarkers that predict therapeutic effects and adverse events is a crucial mandate to guide patient selection for personalized cancer treatments. DPD (dihydropyrimidine dehydrogenase, encoded by DPYD gene) is the initial and rate-limiting enzyme of metabolic pathway of fluoropyrimidines, and fluoropyrimidines are common used drug therapies for breast cancer. Previous studies on DPYD p...

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Dihydropyrimidine dehydrogenase activity: prognostic partner of 5-fluorouracil?

5-FU is one of the most commonly prescribed anticancer agents having notable activity in the treatment of cancers arising from the breast, gastrointestinal tract, and head and neck. The metabolism, mechanisms of action and resistance, and pharmacokinetics of 5-FU have been extensively investigated since its synthesis over 4 decades ago. Despite a longstanding knowledge of the metabolic pathways...

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5-Fluorouracil toxicity and dihydropyrimidine dehydrogenase enzyme: implications for practice.

5-fluorouracil (5-FU) is a fluorinated pyrimidine analog, which is commonly used in combination chemotherapy for treating solid tumors. Dihydropyrimidine dehydrogenase plays an important role in catabolism and clearance of 5-FU. Any alteration in that sequence of enzymatic activity can lead to toxicity and even death in some patients. The most common loss of a functional allele of the dihydropy...

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ژورنال

عنوان ژورنال: Molecular Cancer Therapeutics

سال: 2006

ISSN: 1535-7163,1538-8514

DOI: 10.1158/1535-7163.mct-06-0327