Abstract
The objectives of this study were to evaluate the in vitro anti-tumor (human thyroid cancer cell lines) potential of curcumin and to elucidate its molecular mechanisms. Here, we investigated the effects of curcumin on the cell viability, apoptosis, migration and invasion of human thyroid cancer cell lines FTC133. We also investigated the effects of curcumin on PI3K, p-Akt, MMP1/7, and COX-2 protein expressions using Western blot. Results showed that curcumin inhibited growth, cell migration and invasion in FTC133, and promoted its apoptosis. Western blot assay data demonstrated that curcumin inhibited phosphorylation of PI3K and Akt signaling pathways and subsequently attenuated MMP1/7 and COX-2 protein expressions in FTC133. In conclusion, curcumin suppresses FTC133 cell invasion and migration by inhibiting PI3K and Akt signaling pathways. Therefore, curcumin produces anti-metastatic activity in FTC133 cells.
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