RT Journal Article SR Electronic T1 Galectin-3 Expression in Colorectal Cancer: Relation to Invasion and Metastasis JF Anticancer Research JO Anticancer Res FD International Institute of Anticancer Research SP 2289 OP 2296 VO 27 IS 4B A1 TSUBOI, KAORI A1 SHIMURA, TATSUO A1 MASUDA, NORIHIRO A1 IDE, MUNENORI A1 TSUTSUMI, SOICHI A1 YAMAGUCHI, SATORU A1 ASAO, TAKAYUI A1 KUWANO, HIROYUKI YR 2007 UL http://ar.iiarjournals.org/content/27/4B/2289.abstract AB Background: Galectin-3, a β-galactoside-binding protein, has been associated with various biological processes, such as cell adhesion, recognition, proliferation, differentiation and apoptosis. The aim of this study was to determine the relationship of galectin-3 expression to clinicopathological findings in patients with colorectal cancer. Furthermore, the correlation between the expression of galectin-3 and β-catenin, and the Ki-67 labeling index were investigated. Materials and Methods: Immunohistochemical assessment of galectin-3, β-catenin and Ki-67 expression was performed on samples from 108 patients with colorectal cancer. The expression of galectin-3 was classified at the tumor surface and the invasive front, and its relationship with clinicopathological factors was considered from a statistical viewpoint. Results: There was significant liver metastasis when the expression of galectin-3 was lower at the invasive front of a tumor compared to its surface (p=0.04). There were also significant correlations between β-catenin expression at the tumor surface and liver metastasis and tumor stage (p=0.03, p=0.04 respectively). Conclusion: The reduction of galectin-3 expression is associated with the invasion and metastasis of colorectal cancer. A possible involvement of galectin-3 expression in tumor invasion, metastasis and proliferation in patients with colorectal cancer is suggested. Copyright© 2007 International Institute of Anticancer Research (Dr. John G. Delinassios), All rights reserved