Down-regulation of β-1,3-N-acetylglucosaminyltransferase-8 by siRNA inhibits the growth of human gastric cancer

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Abstract

β-1,3-N-acetylglucosaminyltransferase-8 (β3Gn-T8) is the most recently identifed enzyme in the β3Gn-T family, but its biological function is poorly understood. To elucidate the effects of β3Gn-T8 on gastric cancer behavior, β3Gn-T8 was down-regulated in AGS cells using small interfering RNA (siRNA). The mRNA and protein expression levels of β3Gn-T8 were detected using RT-PCR and Western blotting, respectively, and sequence-specifc inhibition using sirna was also measured using RT-PCR in human SPCA-1 and SGC-7901 cells. The cell proliferation rate was determined using MTT and the percentage of apoptotic cells was measured using fow cytometry. AGS cells transfected with β3Gn-T8 sirna were subcutaneously transplanted into nude mice and tumorigenicity was assessed. The siRNA effciently suppressed β3Gn-T8 expression in AGS cells, and the down-regulation of β3Gn-T8 caused significant inhibition of tumor cell growth in vitro. The apoptotic rate of AGS cells increased to 10.13% 48 h after siRNA transfection, which was five times that of the control cells. Furthermore, the knockdown of β3Gn-T8 expression reduced the tumorigenicity of gastric cancer cells in nude mice, suggesting that β3Gn-T8 has potential as a gastric cancer therapeutic target.

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APA

Liu, Z., Shen, L., Xu, L., Sun, X., Zhou, J., & Wu, S. (2011). Down-regulation of β-1,3-N-acetylglucosaminyltransferase-8 by siRNA inhibits the growth of human gastric cancer. Molecular Medicine Reports, 4(3), 497–503. https://doi.org/10.3892/mmr.2011.448

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