Takuro Futsukaichi1, Tsuyoshi Etoh2, Kentaro Nakajima3, Tsutomu Daa4, Hidefumi Shiroshita3, Norio Shiraishi5, Seigo Kitano6, Masafumi Inomata3. 1. Department of Gastroenterological and Pediatric Surgery, Oita University Faculty of Medicine, Hasama-machi, Yufu, Oita, 879-5593, Japan. takurof@oita-u.ac.jp. 2. Department of Gastroenterological and Pediatric Surgery, Oita University Faculty of Medicine, Hasama-machi, Yufu, Oita, 879-5593, Japan. teto@oita-u.ac.jp. 3. Department of Gastroenterological and Pediatric Surgery, Oita University Faculty of Medicine, Hasama-machi, Yufu, Oita, 879-5593, Japan. 4. Department of Diagnostic Pathology, Oita University Faculty of Medicine, Oita, Japan. 5. Center for Community Medicine, Oita University Faculty of Medicine, Oita, Japan. 6. Oita University, Oita, Japan.
Abstract
PURPOSE: Molecular markers as indicators for gastric cancer recurrence are urgently required. The aim of this study was to identify lectins that can be used to predict gastric cancer recurrence after gastrectomy. METHODS: We created lectin expression profiles by microarray analysis for 60 patients, who underwent surgery for gastric cancer at the Oita University Hospital between January, 2005 and December, 2007. Lectin expression and clinicopathological factors in patients who suffered gastric cancer recurrence and those who did not were compared by univariate and multivariate analyses. RESULTS: Thirteen lectins showed a significant increase in binding to cancer tissues, whereas 11 lectins showed a significant decrease in binding to cancer tissues, when compared with binding to normal epithelia. Multivariate analysis revealed that lymph node metastasis and low Bauhinia purpurea lectin (BPL)-binding signals were independent predictive factors for recurrence. All patients with low BPL expression had significantly worse relapse-free survival than those with high BPL expression. CONCLUSIONS: Our results using a novel lectin microarray system provide the first solid evidence that BPL expression is a predictor of gastric cancer recurrence.
PURPOSE: Molecular markers as indicators for gastric cancer recurrence are urgently required. The aim of this study was to identify lectins that can be used to predict gastric cancer recurrence after gastrectomy. METHODS: We created lectin expression profiles by microarray analysis for 60 patients, who underwent surgery for gastric cancer at the Oita University Hospital between January, 2005 and December, 2007. Lectin expression and clinicopathological factors in patients who suffered gastric cancer recurrence and those who did not were compared by univariate and multivariate analyses. RESULTS: Thirteen lectins showed a significant increase in binding to cancer tissues, whereas 11 lectins showed a significant decrease in binding to cancer tissues, when compared with binding to normal epithelia. Multivariate analysis revealed that lymph node metastasis and low Bauhinia purpurea lectin (BPL)-binding signals were independent predictive factors for recurrence. All patients with low BPL expression had significantly worse relapse-free survival than those with high BPL expression. CONCLUSIONS: Our results using a novel lectin microarray system provide the first solid evidence that BPL expression is a predictor of gastric cancer recurrence.
Authors: D Pectasides; A Mylonakis; M Kostopoulou; M Papadopoulou; D Triantafillis; J Varthalitis; M Dimitriades; A Athanassiou Journal: Am J Clin Oncol Date: 1997-08 Impact factor: 2.339