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  • Title: Inhibition of endometrial carcinoma by Kaempferol is interceded through apoptosis induction, G2/M phase cell cycle arrest, suppression of cell invasion and upregulation of m-TOR/PI3K signalling pathway.
    Author: Lei X, Guo J, Wang Y, Cui J, Feng B, Su Y, Zhao H, Yang W, Hu Y.
    Journal: J BUON; 2019; 24(4):1555-1561. PubMed ID: 31646808.
    Abstract:
    PURPOSE: The main purpose of this study was to investigate the selective anticancer effects of Kaempferol against MFE-280 endometrial carcinoma cells along with evaluating its effects on apoptotic pathway, cell cycle phase distribution, cell invasion, cell migration and m-TOR/PI3K/Akt signalling pathway. METHODS: Cell viability of MFE-280 endometrial carcinoma cells was assessed by MTS [(3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium)] assay. Apoptosis was determined by acridine orange (AO)/ ethidium bromide (EB) double staining. Cell cycle analysis was determined by flow cytometry, while Boyden chamber assay was performed to study the effects of Kaempferol on cell migration and cell invasion, respectively. The effects of Kaempferol on the protein expression of m-TOR/PI3K/Akt signalling pathway were analysed by Western blot assay. RESULTS: Kaempferol exerted considerable and selective anticancer effects on MFE-280 endometrial carcinoma cells with IC50 of 10 μM. The anticancer effects were found to be due to activation of mitochondrial-mediated apoptotic pathway and G2/M phase cell cycle arrest. Furthermore, the results also revealed that Kaempferol significantly inhibited cell migration and cell invasion trend of these cancer cells. Our results also showed that, in comparison to the untreated cells, Kaempferol-treated cells exhibited a dose-dependent downregulation of p-mTOR, p-PI3K and p-AKT proteins. However, mTOR, PI3K and Akt expression levels remained more or less unaltered. CONCLUSIONS: In conclusion, the present study indicates that Kaempferol could exert anticancer effects in MFE-280 endometrial carcinoma cells selectively and that these effects were mediated via apoptosis induction, cell cycle arrest and inhibition of m-TOR/PI3K/Akt signalling pathway.
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