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  • Title: Decreased expression of monocyte chemoattractant protein-1 predicts poor prognosis following curative resection of colorectal cancer.
    Author: Watanabe H, Miki C, Okugawa Y, Toiyama Y, Inoue Y, Kusunoki M.
    Journal: Dis Colon Rectum; 2008 Dec; 51(12):1800-5. PubMed ID: 18633677.
    Abstract:
    PURPOSE: The significance of monocyte chemoattractant protein-1 in colorectal cancer is not well understood. The aim of this study was to investigate the significance of monocyte chemoattractant protein-1 expression in colorectal cancer patients undergoing potentially curative surgery. METHODS: We studied 101 colorectal cancer patients who underwent potentially curative surgery. The concentration of monocyte chemoattractant protein-1 in the tumor and normal mucosa were measured. The expression of monocyte chemoattractant protein-1 was also evaluated immunohistochemically. RESULTS: The tissue concentration of monocyte chemoattractant protein-1 in the tumor was significantly higher than that in the normal mucosa. The decreased monocyte chemoattractant protein-1 cancer/normal ratio was associated with lymph node involvement and could predict poor prognosis. On univariate analysis, the decreased monocyte chemoattractant protein-1 ratio, carcinoembryonic antigen levels, and serosal invasion were the significant factors for poor prognosis. Multivariate analysis showed that monocyte chemoattractant protein-1 ratio was the only independent risk factor predictive of a poor prognosis. Immunohistochemically, monocyte chemoattractant protein-1 was expressed in the cytoplasm. CONCLUSION: The decreased monocyte chemoattractant protein-1 ratio was an independent factor predicting poor prognosis in patients undergoing potentially curative surgery. Monocyte chemoattractant protein-1 deficiency may present a new therapeutic approach for colorectal cancer.
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