Abstract
In the present study, twenty-four selenocyanate and diselenide compounds were synthesized and characterized, and their anticancer activities against the human cancer cell lines Caco2, BGC-823, MCF-7 and PC-3 were determined. Interestingly, most of the new compounds were active in reducing the viability of different cancer cell lines. Two compounds exhibited higher promising activities than other derivatives. The most active compound showed the least IC50 values against the four cancer cell lines, particularly to PC-3 with IC50 values below 5 μm. Two compounds were selected to monitor the expression levels of Bcl-2, IL-2 and caspase-3 molecular biomarkers. Interestingly, the two compounds downregulated the Bcl-2 expression levels and upregulated the expression of IL-2 and caspase-3 in PC-3 cells compared to untreated cells. Moreover, most of the synthesized organoselenides exhibited good Gpx-like activities comparable to ebselen. These results appear that introduction of selenocyanate (-SeCN) or diselenides (-Se-Se-) moiety to some carboxy derivatives could serve as a promising launch point for the further design of this type of organic selenium anticancer agent.
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