• Yin-lu Ding, Yong Zhou, Lei Xiang, Zhi-peng Ji, and Zhou-hong Luo.
• Department of General Surgery, the Second Hospital of Shandong University, and Department of Pathology, School of Medicine, Shandong University, Jinan, Shandong 250033, PR China.
• Int J Med Sci. 2012 Jan 1; 9 (5): 334-8.

ObjectiveTo investigate the expression of glioma-associated oncogene homolog 1(Gli-1) in colon cancer and its association with clinicopathological parameters and postoperative liver metastasis.MethodsExpression of Gli-1 was detected by immunohistochemistry in paraffin-embedded specimens of 96 cases of colon cancer. Relationship between Gli-1 expression and clinicopathological parameters, postoperative liver metastasis were analyzed.ResultsGli-1 protein expression was significantly increased in colon cancer tissues compared to normal colon tissues (P=0.037). Gli-1 expression in colon tissues was increased in patients with lymph node metastases (P=0.022) and higher T stages (P=0.030). Postoperative live metastasis-free survival period was significantly longer in low Gli-1 expression group than that of high Gli-1 expression group (48.22±10.03 months vs 20.46±6.32 months, P=0.001). Multivariate analysis showed that Gli-1 expression level is an independent prognostic factor for postoperative live metastasis-free survival.ConclusionColon cancer is associated with an upregulation of Gli-1 protein expression in colon tissues. In patients with colon cancer, Gli-1 expression level is closely related to lymph node metastases, T stages and postoperative live metastasis-free survival periods, indicative of a possible role of Gli-1 expression in colon cancer progression.

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