Abstract
This study was designed to explore the correlation between expressions of SATB1 and S100A4 and their relationships to the clinicopathologic parameters of colorectal carcinoma (CRC). Expressions of SATB1 and S100A4 were evaluated by immunohistochemistry in a cohort of 131 primary CRC patients undergone surgical resection from 2005 to 2007. SATB1 and S100A4 were positively expressed in 48.9% and 54.2% of CRC cases, respectively. SATB1 and S100A4 expressions in tumor tissues were significantly higher than those in the corresponding normal tissues. A positive correlation was observed between SATB1 and S100A4. Moreover, the levels of SATB1 and S100A4 were both significantly associated with invasion, lymph node status, and TNM stage of CRC, whereas S100A4 expression was also correlated with distant metastasis. Multivariate analysis revealed that SATB1 expression was an independent prognostic indicator for poor survival of CRC. Further survival analysis indicated that co-expression of SATB1 and S100A4 suggested a worse 5-year overall survival rate in CRC patients. Thus, combined analysis of SATB1 and S100A4 expressions may be valuable in determining the development and progression of CRC. Co-expression of SATB1 and S100A4 is an unfavorable prognostic indicator and may be useful in the follow-up of patients with CRC.
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