Expression and clinical significance of SALL4 and β-catenin in colorectal cancer

Journal of Molecular Histology
Liliang HaoQi Su

Abstract

Previous studies on the expression of Sal-like 4 (SALL4), a zinc finger transcription factor, had conflicting results in colorectal cancer (CRC). The main aim of this study was to investigate the expression of SALL4 and its relationship with β-catenin in CRC. Immunohistochemistry was performed to examine the expression of SALL4 and β-catenin in a cohort of 149 patients with CRC, 12 with atypical hyperplasia, 25 with benign tumor and 38 with normal tissue. Expression patterns of SALL4 and β-catenin and correlation with clinicopathological features were investigated. The relationship between SALL4 and β-catenin was examined by immunofluorescence and co-immunoprecipitation using CRC cell lines, SW480, SW620, HCT116 and HT29. Immunohistochemical analysis revealed significantly lower expression of SALL4 in CRC (46.3 %) than atypical hyperplasia (68.0 %, p < 0.05) and normal tissue (78.9 %, p < 0.01). Well-differentiated CRC seemed to express more SALL4 (47.6 %) than moderately (45.8 %) and poorly-differentiated cancers (18.8 %) (p < 0.05). However, SALL4 expression positively correlated with lymph node metastasis and tumor-node-metastasis (TNM) and Dukes stages (all p < 0.05) suggesting a new mechanism involved in the function of SA...Continue Reading

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Feb 17, 2019·Journal of Cellular Biochemistry·AmirReza HesariFaezeh Ghasemi
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