ArticleMolecular and clinical oncology2013
Predictive value of orotate phosphoribosyltransferase in colorectal cancer patients receiving 5-FU-based chemotherapy.
Article in Molecular and clinical oncology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 6 citations in OpenAlex.
- Phase I study of resminostat, an HDAC inhibitor, combined with S-1 in patients with pre-treated biliary tract or pancreatic cancer.Investigational new drugs · 2019Article
- Review
- Impact of the individualization of the first-line chemotherapy for advanced colorectal cancer based on collagen gel droplet-embedded drug sensitivity test.Oncology letters · 2017Article
- Germline oncopharmacogenetics, a promising field in cancer therapy.Cellular oncology (Dordrecht, Netherlands) · 2015Review
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Authors and funding
8 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Pretreatment knowledge of chemosensitivity and side-effects of chemotherapy for colorectal cancer (CRC) patients are likely to ensure the best chemotherapeutic outcome. The aim of this study was to identify additional predictive factors of chemosensitivity to the key CRC treatment drug 5-fluorouracil (5-FU). Surgically obtained specimens from 106 patients treated for CRC were immunohistochemically assessed to investigate the correlation between the protein expression of the 5-FU metabolic enzymes orotate phosphoribosyltransferase (OPRT), thymidylate synthase (TS) and dihydropyrimidine dehydrogenase (DPD), and clinicopathological characteristics as well as the correlation between the protein expression and outcomes of 5-FU-based chemotherapy. A correlation was detected between the high expression of the 5-FU metabolic enzyme OPRT and negative lymph node metastasis (P=0.0496), as well as between DPD and advanced Tumor-Node-Metastasis (TNM) grade cases (IIIA-IVB) and positive lymph node metastases (P=0.0414, respectively). In all 106 patients and in 79 patients undergoing 5-FU-based chemotherapy, survival was improved in those patients with a positive OPRT expression (P=0.0144 and 0.0167, respectively). OPRT expression was higher in the 79 patients with no recurrence (P=0.0179) as well as in patients treated with R0 surgery and 5-FU-based chemotherapy without side-effects (P=0.0126). Disease-free survival (DFS) rate was higher in patients without side-effects, and in patients with a positive OPRT expression without side-effects (P=0.0021 and 0.0031, respectively). Findings of this study demonstrated that OPRT expression positively correlated with fewer side-effects of 5-FU-based chemotherapy and longer patient survival.
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