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PURPOSE The objective is to investigate whether polymorphisms with putative influence on fluorouracil/oxaliplatin activity are associated with clinical outcomes of patients with advanced colorectal cancer treated with first-line oxaliplatin, folinic acid, and fluorouracil palliative chemotherapy. MATERIALS AND METHODS Consecutive patients were(More)
BACKGROUND KRAS codons 12 and 13 mutations predict resistance to anti-EGFR monoclonal antibodies (moAbs) in metastatic colorectal cancer. Also, BRAF V600E mutation has been associated with resistance. Additional KRAS mutations are described in CRC. METHODS We investigated the role of KRAS codons 61 and 146 and BRAF V600E mutations in predicting resistance(More)
PURPOSE To investigate whether prognosis of patients with high-risk gastric cancer may depend on MET copy number gain (CNG) or an activating truncation within a deoxyadenosine tract element (DATE) in the promoter region of the MET ligand HGF. PATIENTS AND METHODS A single-institution cohort of 230 patients with stage II/III gastric cancer was studied.(More)
PURPOSE To investigate whether polymorphisms with putative influence on fluorouracil/cisplatin activity are associated with clinical outcomes of patients with advanced gastric cancer (AGC). PATIENTS AND METHODS Peripheral blood samples from 175 prospectively enrolled AGC patients treated with fluorouracil/cisplatin palliative chemotherapy were used for(More)
Resistance to chemotherapy presents a serious challenge in the successful treatment of various cancers and is mainly responsible for mortality associated with disseminated cancers. Here we show that expression of HtrA1, which is frequently downregulated in ovarian cancer, influences tumor response to chemotherapy by modulating chemotherapy-induced(More)
The primary end point of the study was the analysis of associations between polymorphisms with putative influence on 5-fluorouracil/irinotecan activity and progression-free survival (PFS) of patients with advanced colorectal cancer treated with first-line FOLFIRI chemotherapy. Peripheral blood samples from 146 prospectively enrolled patients were used for(More)
BACKGROUND Gastric cancer is the second highest cause of cancer mortality in the world, despite declining rates of incidence in many industrialized countries. We carried out a case-control study to evaluate whether polymorphisms of DNA repair and glutathione S-transferase (GST) genes modulate the risk of developing diffuse gastric cancer. METHODS ERCC1(More)
Gastric cancer is one of the most common cancers and one of the most frequent causes of cancer-related deaths. The incidence, diagnostic studies, and therapeutic options have undergone important changes in the last decades, but the prognosis for gastric cancer patients remains poor, especially in more advanced stages. Surgery is the mainstay of treatment of(More)
BACKGROUND Docetaxel has shown some activity in advanced gastric cancer. Recent phase I studies found low hematologic toxicity and a favourable toxicity profile when docetaxel was administered on a weekly schedule. In this study, we explored the activity of weekly docetaxel in patients with advanced gastric cancer who failed first-line chemotherapy. (More)
The usefulness of chemotherapy in patients with stage II disease continues to be debated. Biological prognostic factors may allow further insight into the optimal treatment strategy for patients with node-negative disease. Vascular endothelial growth factor (VEGF) seems to be essential for angiogenesis and for the growth of colorectal cancer. Recently, it(More)