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  • Title: Inhibition of cell proliferation and invasion in a human colon cancer cell line by 5-aminosalicylic acid.
    Author: Kim YH, Kim MH, Kim BJ, Kim JJ, Chang DK, Son HJ, Rhee PL, Rhee JC.
    Journal: Dig Liver Dis; 2009 May; 41(5):328-37. PubMed ID: 18976971.
    Abstract:
    BACKGROUND: 5-Aminosalicylic acid lacks the well-known side effects associated with the long-term use of non-steroidal anti-inflammatory drugs. We investigated anti-carcinogenic mechanisms of 5-aminosalicylic acid on a colon cancer cell line. METHODS: MTT analysis was performed for various colon cancer cell lines. The expression of NF-kappaB and metalloproteinases was examined in either HT-29 cells treated with IL-1beta and/or 5-aminosalicylic acid. Matrigel assay was used to evaluate invasive potential of HT-29 cells. Analysis of a cDNA microarray containing 8700 genes was performed to identify the alteration of gene expression in response to treatment to 5-aminosalicylic acid. RESULTS: The use of MTT analysis showed that 5-aminosalicylic acid suppressed the growth of HT-29 cells. The activity of NF-kappaB was also decreased by combined-treatment with IL-1beta and 5-aminosalicylic acid. The use of an ELISA and zymography demonstrated that MMP-2 and MMP-9 enzyme activity were decreased in HT-29 cells by treatment with various concentration of 5-aminosalicylic acid. A matrigel analysis demonstrated that 5-aminosalicylic acid treatment on HT-29 significantly inhibited the invasiveness of the cells. In cDNA microarray, 163 genes following 5-aminosalicylic acid exposure showed altered expression. CONCLUSIONS: This study indicated that 5-aminosalicylic acid suppresses the growth of human colon cancer cells and is able to inhibit MMPs expression via NF-kappaB mediated cell signals and invasiveness.
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