Correlation between elevated intratumoral thymidine phosphorylase and prognosis of node-positive breast carcinoma undergoing adjuvant doxifluridine treatment.

Takahashi,H; Maeda,Y; Watanabe,K; Taguchi,K; Sasaki,F; Todo,S

doi:10.3892/ijo.17.6.1205

Correlation between elevated intratumoral thymidine phosphorylase and prognosis of node-positive breast carcinoma undergoing adjuvant doxifluridine treatment.

Authors:
- H Takahashi
- Y Maeda
- K Watanabe
- K Taguchi
- F Sasaki
- S Todo
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Affiliations: First Department of Surgery, Hokkaido University School of Medicine, Kita-ku, Sapporo 060-8638, Japan. medicine@med.hokudai.ac.jp
Published online on: December 1, 2000 https://doi.org/10.3892/ijo.17.6.1205
Pages: 1205-1216

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Abstract

We determined intratumoral thymidine phosphorylase (dThdPase) activity in 213 patients with T2N0M0 or T2N1M0 breast cancer. After surgery doxifluridine, an intermediate metabolite of capecitabine, and tamoxifen were given by mouth. According to dThdPase activity the examined patients were classified as: A, high activity group; tumors with the activity not less than the mean value and B, low activity group; tumors with activity less than the mean value. Group A had a better prognosis than group B in node-positive patients (disease-free survival, p=0.0446; overall survival, p=0.0788). Intratumoral dThdPase activity might be a useful marker for predicting responsiveness to doxifluridine treatment in the adjuvant setting.