Expression of dihydropyrimidine dehydrogenase (DPD) and hENT1 predicts survival in pancreatic cancer.

N. O. Elander, K Augthton, P. Ghaneh, J. P. Neoptolemos, DH Palmer, T. F. Cox, F Campbell, E Costello, CM Halloran, JR. Mackey, A.G. Scarfe, Juan Valle, AC McDonald, R Carter, NC Tebbutt, D Goldstein, J Shannon, C Dervenis, B Glimelius, M DeakinRM Charnley, Alan Anthoney, MM Lerch, Julia Mayerle, A Olah, MW Buchler, W Greenhalf

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Abstract

Background: Tumour dihydropyrimidine dehydrogenase (DPD) may provide added value to human equilibrative nucleoside transporter-1 (hENT1) in predicting survival following pyrimidine based adjuvant chemotherapy.
Methods: DPD and hENT1 immunohistochemistry scoring was undertaken on tumour cores from 238 patients with pancreatic cancer in the ESPAC-3(v2) trial, randomised to postoperative gemcitabine or 5-fluorouracil/folinic acid (5FU/FA).
Results: DPD tumour expression was associated with reduced overall survival (hazard ratio, HR=1.73 [95% confidence interval, CI = 1.21-2.49], p=0.003). This was significant in the 5FU/FA arm (HR =2.07 [95% CI=1.22-3.53], p=0.007), but not in the gemcitabine arm (HR=1.47 [0.91-3.37], p=0.119). High hENT1 tumour expression was associated with increased survival in gemcitabine (HR=0.56 [0.38-0.82], p=0.003) but not in 5FU/FA treated patients (HR=1.19 [0.80-1.78], p=0.390). Patients with low hENT1 and high DPD expression had a reduced median [95% CI] survival with 5FU/FA (9.7 [5.3-30.4] versus 29.2 [19.5-41.9] months, p=0.002) but not with gemcitabine (14.0 [9.1-15.7] versus 18.0 [7.6-15.3] months, p=1.000). Interaction of treatment and DPD expression was not significant (p=0.303), but interaction of treatment and hENT1 expression was (p=0.009).
Conclusion: DPD tumour expression was a negative prognostic biomarker. Together with tumour expression of hENT1, DPD tumour expression defined patient subgroups that might benefit from either postoperative 5FU/FA or gemcitabine.
Original languageEnglish
Pages (from-to)947-954
Number of pages7
JournalBritish Journal of Cancer
Volume118
Early online date8 Mar 2018
DOIs
Publication statusPublished - 2018

Keywords

  • Dihydropyrimidine dehydrogenase (DPD)
  • human equilibrative nucleoside transporter 1 (hENT1)
  • pancreatic cancer
  • 5-fluorouracil
  • gemcitabine
  • randomized trial
  • adjuvant
  • predictive
  • prognostic

Research Beacons, Institutes and Platforms

  • Manchester Cancer Research Centre

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