ABSTRACT. The objective of this study was to investigate the effect of sodium acetate on the viability of the human gastric adenocarcinoma (AGS) epithelial cell line. AGS cells were exposed to a range of concentrations of sodium acetate for different periods of time, and the sodium acetate-induced cytotoxic effects, including cell viability, DNA fragmentation, apoptotic gene expression, and caspase activity, were assessed. The changes in these phenotypes were quantified by performing a lactate dehydrogenase cell viability assay, annexin V staining, terminal deoxynucleotidyl transferase-mediated dUTP nickend labeling (TUNEL), and several caspase activity assays. In vitro studies demonstrated that the cytotoxicity of sodium acetate on the AGS cell line were dose-and time-dependent manners. No differences 2 Y. Xia et al. Genetics and Molecular Research 15 (4): gmr.15048375 were found between the negative control and sodium acetate-treated cells stained with annexin V and subjected to the TUNEL assay. However, caspase-3 activity was increased in AGS cells exposed to sodium acetate. Overall, it was concluded that sodium acetate exerted an apoptotic effect in AGS cells via a caspase-dependent apoptotic pathway.
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