Expression of glioma-associated oncogene homolog 1 is associated with invasion and postoperative liver metastasis in colon cancer.
Int J Med Sci 2012;
9:334-8. [PMID:
22745574 PMCID:
PMC3384915 DOI:
10.7150/ijms.4553]
[Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2012] [Accepted: 06/12/2012] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE
To investigate the expression of glioma-associated oncogene homolog 1(Gli-1) in colon cancer and its association with clinicopathological parameters and postoperative liver metastasis.
METHODS
Expression 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.
RESULTS
Gli-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.
CONCLUSION
Colon 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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