Abstract
BackgroundThe possible anti-cancer properties of boron, a trace element for humans, have been demonstrated in various experimental and epidemiological studies, although the effects of boron on liver cancer are unclear. In the present study we evaluate the effects of boric acid on the cell lines of hepatocellular carcinoma (HCC) of the liver, as the leading form of liver cancer, for which a poorly-differentiated HCC cell line (Mahlavu cell line) was used. MethodsThe anti-cancer effect of boric acid was investigated with a cell viability assay, apoptosis analysis, cell migration analysis, cell morphology analysis, colony formation assay and 3D cell culture techniques. Also, the effect of boric acid on the AKT signaling pathway was determined through a western blot analysis. ResultsBoric acid was found to reduce cell viability in a dose- and time-dependent manner, and decreased survival, colony formation ability, migration capability and HCC cell tumor spheroid growth in HCC cell lines, while also inducing apoptosis, autophagy and morphological alteration. Furthermore, boric acid inhibited AKT phosphorylation, and anticancer biological responses in HCC cells were observed only in cells in which AKT phosphorylation was suppressed by boric acid. ConclusionOur results suggest that boric acid might be a promising therapeutic candidate in hepatocellular carcinoma via the inhibition of AKT signaling pathway.
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