Colorectal cancer is a type of cancer encountered worldwide and ranks third among all cancer types in terms of incidence. Polyphenols have been shown to have a wide range of biological functions, including a significant impact on cancer start, development, and promotion through regulating many signaling pathways. The aim of this study was to investigate the anticancer effects of isoeugenol based compounds 1, 2 on HT29 colorectal cancer cell line in vitro. MTT test and scratch assay were carried out to determine the effect of these compounds on HT29 cell proliferation and migration respectively. In addition, mRNA expression levels of apoptosis and metastasis-related genes (p53, Bcl2, Bax, Caspase 3, Caspase7, Caspase8, Caspase9, HIF1-α, VEGF, MMP-2, MMP-9) were examined by quantitative real-time PCR. The results indicated that 1 and 2 inhibited HT29 cell proliferation and induced apoptosis by increasing the Bax/Bcl2 ratio and Caspase-9 and Caspase-3 mRNA expression. In conclusion, the results of this study showed that the treatment of these compounds significantly suppressed the mRNA expressions of metastasis-related genes such as Matrix Metalloproteinase-2, Matrix Metalloproteinase-9, Vascular Endothelial Growth Factor and Hypoxia‑Inducible Factor 1α.
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