RGD Reference Report - Thymidylate synthase and dihydropyrimidine dehydrogenase expressions in gallbladder cancer. - Rat Genome Database

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Thymidylate synthase and dihydropyrimidine dehydrogenase expressions in gallbladder cancer.

Authors: Ajiki, T  Hirata, K  Okazaki, T  Horiuchi, H  Fujita, T  Habara, K  Kamigaki, T  Suzuki, Y  Kuroda, Y 
Citation: Ajiki T, etal., Anticancer Res. 2006 Mar-Apr;26(2B):1391-6.
RGD ID: 2317631
Pubmed: PMID:16619549   (View Abstract at PubMed)

BACKGROUND: Although 5-Fluorouracil (5-FU) is widely used in chemotherapeutic treatment for gallbladder cancer, there is little evidence of its effectiveness. Thymidylate synthase (TS) and dihydropyrimidine dehydrogenase (DPD) are the major determinants of individual sensitivity to 5-FU, and the impact of TS and DPD expression on prognosis and 5-FU efficacy has been studied in gastrointestinal carcinomas. MATERIALS AND METHODS: TS and DPD enzymatic activities in frozen samples of 7 gallbladder cancer tissues and immunohistochemical TS and DPD protein expressions in 53 resected gallbladder cancers were evaluated. RESULTS: The DPD activity of gallbladder cancers was significantly higher than that of gastric and colon cancers (p=0.041). TS and DPD protein expressions increased in pT2 and pT3 cases compared to those in pT1 cases, and cases both with high TS and DPD expressions had a worse prognosis than both low TS and DPD expressions. However, TS and DPD expressions were not independent prognostic factors. CONCLUSION: TS and DPD protein expressions in gallbladder cancers were frequently high in pT2 and pT3 gallbladder cancers and control of high TS or DPD levels may be important for advanced gallbladder cancer therapy.



RGD Manual Disease Annotations    Click to see Annotation Detail View

  
Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
DPYDHumangallbladder cancer disease_progressionIEP  RGD 
DpydRatgallbladder cancer disease_progressionISODPYD (Homo sapiens) RGD 
DpydMousegallbladder cancer disease_progressionISODPYD (Homo sapiens) RGD 

Objects Annotated

Genes (Rattus norvegicus)
Dpyd  (dihydropyrimidine dehydrogenase)

Genes (Mus musculus)
Dpyd  (dihydropyrimidine dehydrogenase)

Genes (Homo sapiens)
DPYD  (dihydropyrimidine dehydrogenase)


Additional Information