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Selected proliferation markers correlated with dynamics of growth in colorectal cancer.
European Journal of Cancer Prevention 2018 April 24
For treatment of metastatic colorectal cancer, the dynamics of tumor growth is an important factor for treatment decision. However, it is difficult to evaluate the dynamics of tumor growth, especially those of synchronous metastatic diseases. This study aimed to find some indicators related to tumor proliferation to judge the dynamics of tumor progression. The pathological reports and clinical data of 1205 patients with metastatic colorectal cancer were retrospectively reviewed; 75 patients with known relapse time after radical resection were included, and the expression of proliferation-associated proteins was detected by immunohistochemistry. Relapse-free time (RFT) from radical resection to relapse was obtained to analyze the relationship with expression of these factors. Kaplan-Meier univariate analysis showed that the overexpression of cyclin D1 and epidermal growth factor receptor (EGFR) and late pathological stage after surgery indicated shorter RFT. Multivariate analysis showed that EGFR and the stage were independent predictors of RFT. Expression of EGFR and cyclin D1 and the pathological stage were included as combination risk factors for RFT analysis; more risk factors were correlated with shorter RFT. EGFR and cyclin D1 seemed to be indicators of the dynamics of tumor growth, and overexpression of those molecules may suggest rapid growth and poor prognosis.
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