Prognostic significance of expression of MCM7 and CDX2 in
stage Ⅱ colorectal cancer.
Shijie Huaren Xiaohua Zazhi 2015;
23:495-501. [DOI:
10.11569/wcjd.v23.i3.495]
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Abstract
AIM: To investigate the expression of mini-chromosome maintenance protein 7 (MCM7) and caudal-related homeobox gene 2 (CDX2) in stage Ⅱ colorectal cancer (CRC) and to analyze their correlation with pathological characteristics and prognosis.
METHODS: Immunohistochemistry was used to detect the expression of MCM7 and CDX2 in 220 pairs of stage Ⅱ CRC and adjacent normal tissues. Differential MCM7 and CDX2 expression was analyzed according to the donors' pathological features and prognosis.
RESULTS: MCM7 expression in CRC tissues was significantly higher than that in corresponding adjacent normal tissues (P < 0.001), whereas CDX2 abundance in malignant tissues was dramatically lower compared with corresponding normal counterparts (P < 0.01). Moreover, MCM7 was correlated inversely with tumor differentiation, whereas CDX2 was positively related to tumor differentiation. Kaplan-Meier survival analysis revealed that MCM7-/CDX2+patients had a better outcome.
CONCLUSION: The elevated expression of MCM7 and decreased expression of CDX2 could be combined to act as a prognostic factor for stage Ⅱ CRC.
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